| Python History | |
| -------------- | |
| This file contains the release messages for previous Python releases. | |
| As you read on you go back to the dark ages of Python's history. | |
| ====================================================================== | |
| What's New in Python 3.4.6? | |
| =========================== | |
| Release date: 2017-01-17 | |
| There were no changes between 3.4.6rc1 and 3.4.6 final. | |
| What's New in Python 3.4.6rc1? | |
| ============================== | |
| Release date: 2017-01-02 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #28648: Fixed crash in Py_DecodeLocale() in debug build on Mac OS X | |
| when decode astral characters. Patch by Xiang Zhang. | |
| - Issue #28426: Fixed potential crash in PyUnicode_AsDecodedObject() in debug | |
| build. | |
| Library | |
| ------- | |
| - Issue #28563: Fixed possible DoS and arbitrary code execution when handle | |
| plural form selections in the gettext module. The expression parser now | |
| supports exact syntax supported by GNU gettext. | |
| - In the curses module, raise an error if window.getstr() or window.instr() is | |
| passed a negative value. | |
| - Issue #27783: Fix possible usage of uninitialized memory in operator.methodcaller. | |
| - Issue #27774: Fix possible Py_DECREF on unowned object in _sre. | |
| - Issue #27760: Fix possible integer overflow in binascii.b2a_qp. | |
| - Issue #27758: Fix possible integer overflow in the _csv module for large record | |
| lengths. | |
| - Issue #27568: Prevent HTTPoxy attack (CVE-2016-1000110). Ignore the | |
| HTTP_PROXY variable when REQUEST_METHOD environment is set, which indicates | |
| that the script is in CGI mode. | |
| - Issue #27759: Fix selectors incorrectly retain invalid file descriptors. | |
| Patch by Mark Williams. | |
| Build | |
| ----- | |
| - Issue #28248: Update Windows build to use OpenSSL 1.0.2j. | |
| Tests | |
| ----- | |
| - Issue #27369: In test_pyexpat, avoid testing an error message detail that | |
| changed in Expat 2.2.0. | |
| What's New in Python 3.4.5? | |
| =========================== | |
| Release date: 2016-06-26 | |
| Tests | |
| ----- | |
| - Issue #26867: Ubuntu's openssl OP_NO_SSLv3 is forced on by default; fix test. | |
| What's New in Python 3.4.5rc1? | |
| ============================== | |
| Release date: 2016-06-11 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #26478: Fix semantic bugs when using binary operators with dictionary | |
| views and tuples. | |
| - Issue #26171: Fix possible integer overflow and heap corruption in | |
| zipimporter.get_data(). | |
| Library | |
| ------- | |
| - Issue #26556: Update expat to 2.1.1, fixes CVE-2015-1283. | |
| - Fix TLS stripping vulnerability in smptlib, CVE-2016-0772. Reported by Team | |
| Oststrom | |
| - Issue #25939: On Windows open the cert store readonly in ssl.enum_certificates. | |
| - Issue #26012: Don't traverse into symlinks for ** pattern in | |
| pathlib.Path.[r]glob(). | |
| - Issue #24120: Ignore PermissionError when traversing a tree with | |
| pathlib.Path.[r]glob(). Patch by Ulrich Petri. | |
| - Skip getaddrinfo if host is already resolved. | |
| Patch by A. Jesse Jiryu Davis. | |
| - Add asyncio.timeout() context manager. | |
| - Issue #26050: Add asyncio.StreamReader.readuntil() method. | |
| Patch by Марк Коренберг. | |
| Tests | |
| ----- | |
| - Issue #25940: Changed test_ssl to use self-signed.pythontest.net. This | |
| avoids relying on svn.python.org, which recently changed root certificate. | |
| What's New in Python 3.4.4? | |
| =========================== | |
| Release date: 2015/12/20 | |
| Windows | |
| ------- | |
| - Issue #25844: Corrected =/== typo potentially leading to crash in launcher. | |
| What's New in Python 3.4.4rc1? | |
| ============================== | |
| Release date: 2015/12/06 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #25709: Fixed problem with in-place string concatenation and utf-8 | |
| cache. | |
| - Issue #24097: Fixed crash in object.__reduce__() if slot name is freed inside | |
| __getattr__. | |
| - Issue #24731: Fixed crash on converting objects with special methods | |
| __bytes__, __trunc__, and __float__ returning instances of subclasses of | |
| bytes, int, and float to subclasses of bytes, int, and float correspondingly. | |
| - Issue #25388: Fixed tokenizer crash when processing undecodable source code | |
| with a null byte. | |
| - Issue #22995: Default implementation of __reduce__ and __reduce_ex__ now | |
| rejects builtin types with not defined __new__. | |
| - Issue #24802: Avoid buffer overreads when int(), float(), compile(), exec() | |
| and eval() are passed bytes-like objects. These objects are not | |
| necessarily terminated by a null byte, but the functions assumed they were. | |
| - Issue #24402: Fix input() to prompt to the redirected stdout when | |
| sys.stdout.fileno() fails. | |
| - Issue #24806: Prevent builtin types that are not allowed to be subclassed from | |
| being subclassed through multiple inheritance. | |
| - Issue #24848: Fixed a number of bugs in UTF-7 decoding of misformed data. | |
| - Issue #25280: Import trace messages emitted in verbose (-v) mode are no | |
| longer formatted twice. | |
| - Issue #25003: os.urandom() doesn't use getentropy() on Solaris because | |
| getentropy() is blocking, whereas os.urandom() should not block. getentropy() | |
| is supported since Solaris 11.3. | |
| - Issue #25182: The stdprinter (used as sys.stderr before the io module is | |
| imported at startup) now uses the backslashreplace error handler. | |
| - Issue #24891: Fix a race condition at Python startup if the file descriptor | |
| of stdin (0), stdout (1) or stderr (2) is closed while Python is creating | |
| sys.stdin, sys.stdout and sys.stderr objects. These attributes are now set | |
| to None if the creation of the object failed, instead of raising an OSError | |
| exception. Initial patch written by Marco Paolini. | |
| - Issue #21167: NAN operations are now handled correctly when python is | |
| compiled with ICC even if -fp-model strict is not specified. | |
| - Issue #4395: Better testing and documentation of binary operators. | |
| Patch by Martin Panter. | |
| - Issue #24467: Fixed possible buffer over-read in bytearray. The bytearray | |
| object now always allocates place for trailing null byte and it's buffer now | |
| is always null-terminated. | |
| - Issue #24115: Update uses of PyObject_IsTrue(), PyObject_Not(), | |
| PyObject_IsInstance(), PyObject_RichCompareBool() and _PyDict_Contains() | |
| to check for and handle errors correctly. | |
| - Issue #24257: Fixed system error in the comparison of faked | |
| types.SimpleNamespace. | |
| - Issue #22939: Fixed integer overflow in iterator object. Patch by | |
| Clement Rouault. | |
| - Issue #23985: Fix a possible buffer overrun when deleting a slice from | |
| the front of a bytearray and then appending some other bytes data. | |
| - Issue #24102: Fixed exception type checking in standard error handlers. | |
| - Issue #23757: PySequence_Tuple() incorrectly called the concrete list API | |
| when the data was a list subclass. | |
| - Issue #24407: Fix crash when dict is mutated while being updated. | |
| - Issue #24096: Make warnings.warn_explicit more robust against mutation of the | |
| warnings.filters list. | |
| - Issue #23996: Avoid a crash when a delegated generator raises an | |
| unnormalized StopIteration exception. Patch by Stefan Behnel. | |
| - Issue #24022: Fix tokenizer crash when processing undecodable source code. | |
| - Issue #23309: Avoid a deadlock at shutdown if a daemon thread is aborted | |
| while it is holding a lock to a buffered I/O object, and the main thread | |
| tries to use the same I/O object (typically stdout or stderr). A fatal | |
| error is emitted instead. | |
| - Issue #22977: Fixed formatting Windows error messages on Wine. | |
| Patch by Martin Panter. | |
| - Issue #23803: Fixed str.partition() and str.rpartition() when a separator | |
| is wider then partitioned string. | |
| - Issue #23192: Fixed generator lambdas. Patch by Bruno Cauet. | |
| - Issue #23629: Fix the default __sizeof__ implementation for variable-sized | |
| objects. | |
| - Issue #24044: Fix possible null pointer dereference in list.sort in out of | |
| memory conditions. | |
| - Issue #21354: PyCFunction_New function is exposed by python DLL again. | |
| Library | |
| ------- | |
| - Issue #24903: Fix regression in number of arguments compileall accepts when | |
| '-d' is specified. The check on the number of arguments has been dropped | |
| completely as it never worked correctly anyway. | |
| - Issue #25764: In the subprocess module, preserve any exception caused by | |
| fork() failure when preexec_fn is used. | |
| - Issue #6478: _strptime's regexp cache now is reset after changing timezone | |
| with time.tzset(). | |
| - Issue #25177: Fixed problem with the mean of very small and very large | |
| numbers. As a side effect, statistics.mean and statistics.variance should | |
| be significantly faster. | |
| - Issue #25718: Fixed copying object with state with boolean value is false. | |
| - Issue #10131: Fixed deep copying of minidom documents. Based on patch | |
| by Marian Ganisin. | |
| - Issue #25725: Fixed a reference leak in pickle.loads() when unpickling | |
| invalid data including tuple instructions. | |
| - Issue #25663: In the Readline completer, avoid listing duplicate global | |
| names, and search the global namespace before searching builtins. | |
| - Issue #25688: Fixed file leak in ElementTree.iterparse() raising an error. | |
| - Issue #23914: Fixed SystemError raised by unpickler on broken pickle data. | |
| - Issue #25691: Fixed crash on deleting ElementTree.Element attributes. | |
| - Issue #25624: ZipFile now always writes a ZIP_STORED header for directory | |
| entries. Patch by Dingyuan Wang. | |
| - Issue #25583: Avoid incorrect errors raised by os.makedirs(exist_ok=True) | |
| when the OS gives priority to errors such as EACCES over EEXIST. | |
| - Issue #25593: Change semantics of EventLoop.stop() in asyncio. | |
| - Issue #6973: When we know a subprocess.Popen process has died, do | |
| not allow the send_signal(), terminate(), or kill() methods to do | |
| anything as they could potentially signal a different process. | |
| - Issue #25578: Fix (another) memory leak in SSLSocket.getpeercer(). | |
| - Issue #25590: In the Readline completer, only call getattr() once per | |
| attribute. | |
| - Issue #25498: Fix a crash when garbage-collecting ctypes objects created | |
| by wrapping a memoryview. This was a regression made in 3.4.3. Based | |
| on patch by Eryksun. | |
| - Issue #18010: Fix the pydoc web server's module search function to handle | |
| exceptions from importing packages. | |
| - Issue #25510: fileinput.FileInput.readline() now returns b'' instead of '' | |
| at the end if the FileInput was opened with binary mode. | |
| Patch by Ryosuke Ito. | |
| - Issue #25530: Disable the vulnerable SSLv3 protocol by default when creating | |
| ssl.SSLContext. | |
| - Issue #25569: Fix memory leak in SSLSocket.getpeercert(). | |
| - Issue #21827: Fixed textwrap.dedent() for the case when largest common | |
| whitespace is a substring of smallest leading whitespace. | |
| Based on patch by Robert Li. | |
| - Issue #25471: Sockets returned from accept() shouldn't appear to be | |
| nonblocking. | |
| - Issue #25441: asyncio: Raise error from drain() when socket is closed. | |
| - Issue #25411: Improved Unicode support in SMTPHandler through better use of | |
| the email package. Thanks to user simon04 for the patch. | |
| - Issue #25380: Fixed protocol for the STACK_GLOBAL opcode in | |
| pickletools.opcodes. | |
| - Issue #23972: Updates asyncio datagram create method allowing reuseport | |
| and reuseaddr socket options to be set prior to binding the socket. | |
| Mirroring the existing asyncio create_server method the reuseaddr option | |
| for datagram sockets defaults to True if the O/S is 'posix' (except if the | |
| platform is Cygwin). Patch by Chris Laws. | |
| - Issue #25304: Add asyncio.run_coroutine_threadsafe(). This lets you | |
| submit a coroutine to a loop from another thread, returning a | |
| concurrent.futures.Future. By Vincent Michel. | |
| - Issue #25319: When threading.Event is reinitialized, the underlying condition | |
| should use a regular lock rather than a recursive lock. | |
| - Issue #25232: Fix CGIRequestHandler to split the query from the URL at the | |
| first question mark (?) rather than the last. Patch from Xiang Zhang. | |
| - Issue #24657: Prevent CGIRequestHandler from collapsing slashes in the | |
| query part of the URL as if it were a path. Patch from Xiang Zhang. | |
| - Issue #22958: Constructor and update method of weakref.WeakValueDictionary | |
| now accept the self and the dict keyword arguments. | |
| - Issue #22609: Constructor of collections.UserDict now accepts the self keyword | |
| argument. | |
| - Issue #25262. Added support for BINBYTES8 opcode in Python implementation of | |
| unpickler. Highest 32 bits of 64-bit size for BINUNICODE8 and BINBYTES8 | |
| opcodes no longer silently ignored on 32-bit platforms in C implementation. | |
| - Issue #25034: Fix string.Formatter problem with auto-numbering and | |
| nested format_specs. Patch by Anthon van der Neut. | |
| - Issue #25233: Rewrite the guts of asyncio.Queue and | |
| asyncio.Semaphore to be more understandable and correct. | |
| - Issue #23600: Default implementation of tzinfo.fromutc() was returning | |
| wrong results in some cases. | |
| - Issue #25203: Failed readline.set_completer_delims() no longer left the | |
| module in inconsistent state. | |
| - Prevent overflow in _Unpickler_Read. | |
| - Issue #25047: The XML encoding declaration written by Element Tree now | |
| respects the letter case given by the user. This restores the ability to | |
| write encoding names in uppercase like "UTF-8", which worked in Python 2. | |
| - Issue #19143: platform module now reads Windows version from kernel32.dll to | |
| avoid compatibility shims. | |
| - Issue #23517: Fix rounding in fromtimestamp() and utcfromtimestamp() methods | |
| of datetime.datetime: microseconds are now rounded to nearest with ties | |
| going to nearest even integer (ROUND_HALF_EVEN), instead of being rounding | |
| towards zero (ROUND_DOWN). It's important that these methods use the same | |
| rounding mode than datetime.timedelta to keep the property: | |
| (datetime(1970,1,1) + timedelta(seconds=t)) == datetime.utcfromtimestamp(t). | |
| It also the rounding mode used by round(float) for example. | |
| - Issue #24684: socket.socket.getaddrinfo() now calls | |
| PyUnicode_AsEncodedString() instead of calling the encode() method of the | |
| host, to handle correctly custom string with an encode() method which doesn't | |
| return a byte string. The encoder of the IDNA codec is now called directly | |
| instead of calling the encode() method of the string. | |
| - Issue #24982: shutil.make_archive() with the "zip" format now adds entries | |
| for directories (including empty directories) in ZIP file. | |
| - Issue #24857: Comparing call_args to a long sequence now correctly returns a | |
| boolean result instead of raising an exception. Patch by A Kaptur. | |
| - Issue #25019: Fixed a crash caused by setting non-string key of expat parser. | |
| Based on patch by John Leitch. | |
| - Issue #24917: time_strftime() buffer over-read. | |
| - Issue #23144: Make sure that HTMLParser.feed() returns all the data, even | |
| when convert_charrefs is True. | |
| - Issue #16180: Exit pdb if file has syntax error, instead of trapping user | |
| in an infinite loop. Patch by Xavier de Gaye. | |
| - Issue #21112: Fix regression in unittest.expectedFailure on subclasses. | |
| Patch from Berker Peksag. | |
| - Issue #24931: Instances of subclasses of namedtuples have their own __dict__ | |
| which breaks the inherited __dict__ property and breaks the _asdict() method. | |
| Removed the __dict__ property to prevent the conflict and fixed _asdict(). | |
| - Issue #24764: cgi.FieldStorage.read_multi() now ignores the Content-Length | |
| header in part headers. Patch written by Peter Landry and reviewed by Pierre | |
| Quentel. | |
| - Issue #24774: Fix docstring in http.server.test. Patch from Chiu-Hsiang Hsu. | |
| - Issue #21159: Improve message in configparser.InterpolationMissingOptionError. | |
| Patch from Łukasz Langa. | |
| - Issue #23888: Handle fractional time in cookie expiry. Patch by ssh. | |
| - Issue #23004: mock_open() now reads binary data correctly when the type of | |
| read_data is bytes. Initial patch by Aaron Hill. | |
| - Issue #23652: Make it possible to compile the select module against the | |
| libc headers from the Linux Standard Base, which do not include some | |
| EPOLL macros. Patch by Matt Frank. | |
| - Issue #22932: Fix timezones in email.utils.formatdate. | |
| Patch from Dmitry Shachnev. | |
| - Issue #23779: imaplib raises TypeError if authenticator tries to abort. | |
| Patch from Craig Holmquist. | |
| - Issue #23319: Fix ctypes.BigEndianStructure, swap correctly bytes. Patch | |
| written by Matthieu Gautier. | |
| - Issue #23254: Document how to close the TCPServer listening socket. | |
| Patch from Martin Panter. | |
| - Issue #19450: Update Windows and OS X installer builds to use SQLite 3.8.11. | |
| - Issue #23441: rcompleter now prints a tab character instead of displaying | |
| possible completions for an empty word. Initial patch by Martin Sekera. | |
| - Issue #24735: Fix invalid memory access in | |
| itertools.combinations_with_replacement(). | |
| - Issue #17527: Add PATCH to wsgiref.validator. Patch from Luca Sbardella. | |
| - Issue #24683: Fixed crashes in _json functions called with arguments of | |
| inappropriate type. | |
| - Issue #21697: shutil.copytree() now correctly handles symbolic links that | |
| point to directories. Patch by Eduardo Seabra and Thomas Kluyver. | |
| - Issue #24620: Random.setstate() now validates the value of state last element. | |
| - Issue #22153: Improve unittest docs. Patch from Martin Panter and evilzero. | |
| - Issue #24206: Fixed __eq__ and __ne__ methods of inspect classes. | |
| - Issue #21750: mock_open.read_data can now be read from each instance, as it | |
| could in Python 3.3. | |
| - Issue #23247: Fix a crash in the StreamWriter.reset() of CJK codecs. | |
| - Issue #18622: unittest.mock.mock_open().reset_mock would recurse infinitely. | |
| Patch from Nicola Palumbo and Laurent De Buyst. | |
| - Issue #24608: chunk.Chunk.read() now always returns bytes, not str. | |
| - Issue #18684: Fixed reading out of the buffer in the re module. | |
| - Issue #24259: tarfile now raises a ReadError if an archive is truncated | |
| inside a data segment. | |
| - Issue #24552: Fix use after free in an error case of the _pickle module. | |
| - Issue #24514: tarfile now tolerates number fields consisting of only | |
| whitespace. | |
| - Issue #19176: Fixed doctype() related bugs in C implementation of ElementTree. | |
| A deprecation warning no longer issued by XMLParser subclass with default | |
| doctype() method. Direct call of doctype() now issues a warning. Parser's | |
| doctype() now is not called if target's doctype() is called. Based on patch | |
| by Martin Panter. | |
| - Issue #20387: Restore semantic round-trip correctness in tokenize/untokenize | |
| for tab-indented blocks. | |
| - Issue #24456: Fixed possible buffer over-read in adpcm2lin() and lin2adpcm() | |
| functions of the audioop module. | |
| - Issue #24336: The contextmanager decorator now works with functions with | |
| keyword arguments called "func" and "self". Patch by Martin Panter. | |
| - Issue #24489: ensure a previously set C errno doesn't disturb cmath.polar(). | |
| - Issue #5633: Fixed timeit when the statement is a string and the setup is not. | |
| - Issue #24326: Fixed audioop.ratecv() with non-default weightB argument. | |
| Original patch by David Moore. | |
| - Issue #23840: tokenize.open() now closes the temporary binary file on error | |
| to fix a resource warning. | |
| - Issue #24257: Fixed segmentation fault in sqlite3.Row constructor with faked | |
| cursor type. | |
| - Issue #22107: tempfile.gettempdir() and tempfile.mkdtemp() now try again | |
| when a directory with the chosen name already exists on Windows as well as | |
| on Unix. tempfile.mkstemp() now fails early if parent directory is not | |
| valid (not exists or is a file) on Windows. | |
| - Issue #6598: Increased time precision and random number range in | |
| email.utils.make_msgid() to strengthen the uniqueness of the message ID. | |
| - Issue #24091: Fixed various crashes in corner cases in C implementation of | |
| ElementTree. | |
| - Issue #21931: msilib.FCICreate() now raises TypeError in the case of a bad | |
| argument instead of a ValueError with a bogus FCI error number. | |
| Patch by Jeffrey Armstrong. | |
| - Issue #23796: peek and read1 methods of BufferedReader now raise ValueError | |
| if they called on a closed object. Patch by John Hergenroeder. | |
| - Issue #24521: Fix possible integer overflows in the pickle module. | |
| - Issue #22931: Allow '[' and ']' in cookie values. | |
| - Issue #20274: Remove ignored and erroneous "kwargs" parameters from three | |
| METH_VARARGS methods on _sqlite.Connection. | |
| - Issue #24094: Fix possible crash in json.encode with poorly behaved dict | |
| subclasses. | |
| - Asyncio issue 222 / PR 231 (Victor Stinner) -- fix @coroutine | |
| functions without __name__. | |
| - Issue #9246: On POSIX, os.getcwd() now supports paths longer than 1025 bytes. | |
| Patch written by William Orr. | |
| - The keywords attribute of functools.partial is now always a dictionary. | |
| - Issues #24099, #24100, and #24101: Fix free-after-use bug in heapq's siftup | |
| and siftdown functions. | |
| - Backport collections.deque fixes from Python 3.5. Prevents reentrant badness | |
| during deletion by deferring the decref until the container has been restored | |
| to a consistent state. | |
| - Issue #23008: Fixed resolving attributes with boolean value is False in pydoc. | |
| - Fix asyncio issue 235: LifoQueue and PriorityQueue's put didn't | |
| increment unfinished tasks (this bug was introduced in 3.4.3 when | |
| JoinableQueue was merged with Queue). | |
| - Issue #23908: os functions now reject paths with embedded null character | |
| on Windows instead of silently truncate them. | |
| - Issue #23728: binascii.crc_hqx() could return an integer outside of the range | |
| 0-0xffff for empty data. | |
| - Issue #23811: Add missing newline to the PyCompileError error message. | |
| Patch by Alex Shkop. | |
| - Issue #17898: Fix exception in gettext.py when parsing certain plural forms. | |
| - Issue #22982: Improve BOM handling when seeking to multiple positions of | |
| a writable text file. | |
| - Issue #23865: close() methods in multiple modules now are idempotent and more | |
| robust at shutdown. If they need to release multiple resources, all are | |
| released even if errors occur. | |
| - Issue #23881: urllib.request.ftpwrapper constructor now closes the socket if | |
| the FTP connection failed to fix a ResourceWarning. | |
| - Issue #23400: Raise same exception on both Python 2 and 3 if sem_open is not | |
| available. Patch by Davin Potts. | |
| - Issue #15133: _tkinter.tkapp.getboolean() now supports Tcl_Obj and always | |
| returns bool. tkinter.BooleanVar now validates input values (accepted bool, | |
| int, str, and Tcl_Obj). tkinter.BooleanVar.get() now always returns bool. | |
| - Issue #23338: Fixed formatting ctypes error messages on Cygwin. | |
| Patch by Makoto Kato. | |
| - Issue #16840: Tkinter now supports 64-bit integers added in Tcl 8.4 and | |
| arbitrary precision integers added in Tcl 8.5. | |
| - Issue #23834: Fix socket.sendto(), use the C Py_ssize_t type to store the | |
| result of sendto() instead of the C int type. | |
| - Issue #21526: Tkinter now supports new boolean type in Tcl 8.5. | |
| - Issue #23838: linecache now clears the cache and returns an empty result on | |
| MemoryError. | |
| - Issue #18473: Fixed 2to3 and 3to2 compatible pickle mappings. Fixed | |
| ambiguous reverse mappings. Added many new mappings. Import mapping is no | |
| longer applied to modules already mapped with full name mapping. | |
| - Issue #23745: The new email header parser now handles duplicate MIME | |
| parameter names without error, similar to how get_param behaves. | |
| - Issue #23792: Ignore KeyboardInterrupt when the pydoc pager is active. | |
| This mimics the behavior of the standard unix pagers, and prevents | |
| pipepager from shutting down while the pager itself is still running. | |
| - Issue #23742: ntpath.expandvars() no longer loses unbalanced single quotes. | |
| - Issue #21802: The reader in BufferedRWPair now is closed even when closing | |
| writer failed in BufferedRWPair.close(). | |
| - Issue #23671: string.Template now allows to specify the "self" parameter as | |
| keyword argument. string.Formatter now allows to specify the "self" and | |
| the "format_string" parameters as keyword arguments. | |
| - Issue #21560: An attempt to write a data of wrong type no longer cause | |
| GzipFile corruption. Original patch by Wolfgang Maier. | |
| - Issue #23647: Increase imaplib's MAXLINE to accommodate modern mailbox sizes. | |
| - Issue #23539: If body is None, http.client.HTTPConnection.request now sets | |
| Content-Length to 0 for PUT, POST, and PATCH headers to avoid 411 errors from | |
| some web servers. | |
| - Issue #22351: The nntplib.NNTP constructor no longer leaves the connection | |
| and socket open until the garbage collector cleans them up. Patch by | |
| Martin Panter. | |
| - Issue #23136: _strptime now uniformly handles all days in week 0, including | |
| Dec 30 of previous year. Based on patch by Jim Carroll. | |
| - Issue #23700: Iterator of NamedTemporaryFile now keeps a reference to | |
| NamedTemporaryFile instance. Patch by Bohuslav Kabrda. | |
| - Issue #22903: The fake test case created by unittest.loader when it fails | |
| importing a test module is now picklable. | |
| - Issue #23568: Add rdivmod support to MagicMock() objects. | |
| Patch by Håkan Lövdahl. | |
| - Issue #23138: Fixed parsing cookies with absent keys or values in cookiejar. | |
| Patch by Demian Brecht. | |
| - Issue #23051: multiprocessing.Pool methods imap() and imap_unordered() now | |
| handle exceptions raised by an iterator. Patch by Alon Diamant and Davin | |
| Potts. | |
| - Issue #22928: Disabled HTTP header injections in http.client. | |
| Original patch by Demian Brecht. | |
| - Issue #23615: Modules bz2, tarfile and tokenize now can be reloaded with | |
| imp.reload(). Patch by Thomas Kluyver. | |
| - Issue #23476: In the ssl module, enable OpenSSL's X509_V_FLAG_TRUSTED_FIRST | |
| flag on certificate stores when it is available. | |
| - Issue #23576: Avoid stalling in SSL reads when EOF has been reached in the | |
| SSL layer but the underlying connection hasn't been closed. | |
| - Issue #23504: Added an __all__ to the types module. | |
| - Issue #20204: Added the __module__ attribute to _tkinter classes. | |
| - Issue #23521: Corrected pure python implementation of timedelta division. | |
| * Eliminated OverflowError from timedelta * float for some floats; | |
| * Corrected rounding in timedelta true division. | |
| - Issue #21619: Popen objects no longer leave a zombie after exit in the with | |
| statement if the pipe was broken. Patch by Martin Panter. | |
| - Issue #6639: Module-level turtle functions no longer raise TclError after | |
| closing the window. | |
| - Issues #814253, #9179: Warnings now are raised when group references and | |
| conditional group references are used in lookbehind assertions in regular | |
| expressions. | |
| - Issue #23215: Multibyte codecs with custom error handlers that ignores errors | |
| consumed too much memory and raised SystemError or MemoryError. | |
| Original patch by Aleksi Torhamo. | |
| - Issue #5700: io.FileIO() called flush() after closing the file. | |
| flush() was not called in close() if closefd=False. | |
| - Issue #23374: Fixed pydoc failure with non-ASCII files when stdout encoding | |
| differs from file system encoding (e.g. on Mac OS). | |
| - Issue #23481: Remove RC4 from the SSL module's default cipher list. | |
| - Issue #21548: Fix pydoc.synopsis() and pydoc.apropos() on modules with empty | |
| docstrings. | |
| - Issue #22885: Fixed arbitrary code execution vulnerability in the dbm.dumb | |
| module. Original patch by Claudiu Popa. | |
| - Issue #23146: Fix mishandling of absolute Windows paths with forward | |
| slashes in pathlib. | |
| - Issue #23421: Fixed compression in tarfile CLI. Patch by wdv4758h. | |
| - Issue #23367: Fix possible overflows in the unicodedata module. | |
| - Issue #23361: Fix possible overflow in Windows subprocess creation code. | |
| - Issue #23801: Fix issue where cgi.FieldStorage did not always ignore the | |
| entire preamble to a multipart body. | |
| - Issue #23310: Fix MagicMock's initializer to work with __methods__, just | |
| like configure_mock(). Patch by Kasia Jachim. | |
| - asyncio: New event loop APIs: set_task_factory() and get_task_factory(). | |
| - asyncio: async() function is deprecated in favour of ensure_future(). | |
| - Issue #23898: Fix inspect.classify_class_attrs() to support attributes | |
| with overloaded __eq__ and __bool__. Patch by Mike Bayer. | |
| - Issue #24298: Fix inspect.signature() to correctly unwrap wrappers | |
| around bound methods. | |
| - Issue #23572: Fixed functools.singledispatch on classes with falsy | |
| metaclasses. Patch by Ethan Furman. | |
| IDLE | |
| ---- | |
| - Issue 15348: Stop the debugger engine (normally in a user process) | |
| before closing the debugger window (running in the IDLE process). | |
| This prevents the RuntimeErrors that were being caught and ignored. | |
| - Issue #24455: Prevent IDLE from hanging when a) closing the shell while the | |
| debugger is active (15347); b) closing the debugger with the [X] button | |
| (15348); and c) activating the debugger when already active (24455). | |
| The patch by Mark Roseman does this by making two changes. | |
| 1. Suspend and resume the gui.interaction method with the tcl vwait | |
| mechanism intended for this purpose (instead of root.mainloop & .quit). | |
| 2. In gui.run, allow any existing interaction to terminate first. | |
| - Change 'The program' to 'Your program' in an IDLE 'kill program?' message | |
| to make it clearer that the program referred to is the currently running | |
| user program, not IDLE itself. | |
| - Issue #24750: Improve the appearance of the IDLE editor window status bar. | |
| Patch by Mark Roseman. | |
| - Issue #25313: Change the handling of new built-in text color themes to better | |
| address the compatibility problem introduced by the addition of IDLE Dark. | |
| Consistently use the revised idleConf.CurrentTheme everywhere in idlelib. | |
| - Issue #24782: Extension configuration is now a tab in the IDLE Preferences | |
| dialog rather than a separate dialog. The former tabs are now a sorted | |
| list. Patch by Mark Roseman. | |
| - Issue #22726: Re-activate the config dialog help button with some content | |
| about the other buttons and the new IDLE Dark theme. | |
| - Issue #24820: IDLE now has an 'IDLE Dark' built-in text color theme. | |
| It is more or less IDLE Classic inverted, with a cobalt blue background. | |
| Strings, comments, keywords, ... are still green, red, orange, ... . | |
| To use it with IDLEs released before November 2015, hit the | |
| 'Save as New Custom Theme' button and enter a new name, | |
| such as 'Custom Dark'. The custom theme will work with any IDLE | |
| release, and can be modified. | |
| - Issue #25224: README.txt is now an idlelib index for IDLE developers and | |
| curious users. The previous user content is now in the IDLE doc chapter. | |
| 'IDLE' now means 'Integrated Development and Learning Environment'. | |
| - Issue #24820: Users can now set breakpoint colors in | |
| Settings -> Custom Highlighting. Original patch by Mark Roseman. | |
| - Issue #24972: Inactive selection background now matches active selection | |
| background, as configured by users, on all systems. Found items are now | |
| always highlighted on Windows. Initial patch by Mark Roseman. | |
| - Issue #24570: Idle: make calltip and completion boxes appear on Macs | |
| affected by a tk regression. Initial patch by Mark Roseman. | |
| - Issue #24988: Idle ScrolledList context menus (used in debugger) | |
| now work on Mac Aqua. Patch by Mark Roseman. | |
| - Issue #24801: Make right-click for context menu work on Mac Aqua. | |
| Patch by Mark Roseman. | |
| - Issue #25173: Associate tkinter messageboxes with a specific widget. | |
| For Mac OSX, make them a 'sheet'. Patch by Mark Roseman. | |
| - Issue #25198: Enhance the initial html viewer now used for Idle Help. | |
| * Properly indent fixed-pitch text (patch by Mark Roseman). | |
| * Give code snippet a very Sphinx-like light blueish-gray background. | |
| * Re-use initial width and height set by users for shell and editor. | |
| * When the Table of Contents (TOC) menu is used, put the section header | |
| at the top of the screen. | |
| - Issue #25225: Condense and rewrite Idle doc section on text colors. | |
| - Issue #21995: Explain some differences between IDLE and console Python. | |
| - Issue #22820: Explain need for *print* when running file from Idle editor. | |
| - Issue #25224: Doc: augment Idle feature list and no-subprocess section. | |
| - Issue #25219: Update doc for Idle command line options. | |
| Some were missing and notes were not correct. | |
| - Issue #24861: Most of idlelib is private and subject to change. | |
| Use idleib.idle.* to start Idle. See idlelib.__init__.__doc__. | |
| - Issue #25199: Idle: add synchronization comments for future maintainers. | |
| - Issue #16893: Replace help.txt with help.html for Idle doc display. | |
| The new idlelib/help.html is rstripped Doc/build/html/library/idle.html. | |
| It looks better than help.txt and will better document Idle as released. | |
| The tkinter html viewer that works for this file was written by Mark Roseman. | |
| The now unused EditorWindow.HelpDialog class and helt.txt file are deprecated. | |
| - Issue #24199: Deprecate unused idlelib.idlever with possible removal in 3.6. | |
| - Issue #24790: Remove extraneous code (which also create 2 & 3 conflicts). | |
| - Issue #23672: Allow Idle to edit and run files with astral chars in name. | |
| Patch by Mohd Sanad Zaki Rizvi. | |
| - Issue 24745: Idle editor default font. Switch from Courier to | |
| platform-sensitive TkFixedFont. This should not affect current customized | |
| font selections. If there is a problem, edit $HOME/.idlerc/config-main.cfg | |
| and remove 'fontxxx' entries from [Editor Window]. Patch by Mark Roseman. | |
| - Issue #21192: Idle editor. When a file is run, put its name in the restart bar. | |
| Do not print false prompts. Original patch by Adnan Umer. | |
| - Issue #13884: Idle menus. Remove tearoff lines. Patch by Roger Serwy. | |
| - Issue #23184: remove unused names and imports in idlelib. | |
| Initial patch by Al Sweigart. | |
| Tests | |
| ----- | |
| - Issue #25616: Tests for OrderedDict are extracted from test_collections | |
| into separate file test_ordered_dict. | |
| - Issue #25099: Make test_compileall not fail when an entry on sys.path cannot | |
| be written to (commonly seen in administrative installs on Windows). | |
| - Issue #24751: When running regrtest with the ``-w`` command line option, | |
| a test run is no longer marked as a failure if all tests succeed when | |
| re-run. | |
| - Issue #21520: test_zipfile no longer fails if the word 'bad' appears | |
| anywhere in the name of the current directory. | |
| - Issue #23799: Added test.support.start_threads() for running and | |
| cleaning up multiple threads. | |
| - Issue #22390: test.regrtest now emits a warning if temporary files or | |
| directories are left after running a test. | |
| - Issue #23583: Added tests for standard IO streams in IDLE. | |
| Build | |
| ----- | |
| - Issue #23445: pydebug builds now use "gcc -Og" where possible, to make | |
| the resulting executable faster. | |
| - Issue #24603: Update Windows builds to use OpenSSL1.0.2d | |
| and OS X 10.5 installer to use OpenSSL 1.0.2e. | |
| C API | |
| ----- | |
| - Issue #23998: PyImport_ReInitLock() now checks for lock allocation error | |
| Documentation | |
| ------------- | |
| - Issue #12067: Rewrite Comparisons section in the Expressions chapter of the | |
| language reference. Some of the details of comparing mixed types were | |
| incorrect or ambiguous. NotImplemented is only relevant at a lower level | |
| than the Expressions chapter. Added details of comparing range() objects, | |
| and default behaviour and consistency suggestions for user-defined classes. | |
| Patch from Andy Maier. | |
| - Issue #24952: Clarify the default size argument of stack_size() in | |
| the "threading" and "_thread" modules. Patch from Mattip. | |
| - Issue #24808: Update the types of some PyTypeObject fields. Patch by | |
| Joseph Weston. | |
| - Issue #22812: Fix unittest discovery examples. | |
| Patch from Pam McA'Nulty. | |
| - Issue #24129: Clarify the reference documentation for name resolution. | |
| This includes removing the assumption that readers will be familiar with the | |
| name resolution scheme Python used prior to the introduction of lexical | |
| scoping for function namespaces. Patch by Ivan Levkivskyi. | |
| - Issue #20769: Improve reload() docs. Patch by Dorian Pula. | |
| - Issue #23589: Remove duplicate sentence from the FAQ. Patch by Yongzhi Pan. | |
| - Issue #24729: Correct IO tutorial to match implementation regarding | |
| encoding parameter to open function. | |
| - Issue #24351: Clarify what is meant by "identifier" in the context of | |
| string.Template instances. | |
| - Issue #22155: Add File Handlers subsection with createfilehandler to tkinter | |
| doc. Remove obsolete example from FAQ. Patch by Martin Panter. | |
| - Issue #24029: Document the name binding behavior for submodule imports. | |
| - Issue #24077: Fix typo in man page for -I command option: -s, not -S. | |
| Tools/Demos | |
| ----------- | |
| - Issue #25440: Fix output of python-config --extension-suffix. | |
| - Issue #23330: h2py now supports arbitrary filenames in #include. | |
| - Issue #24031: make patchcheck now supports git checkouts, too. | |
| Windows | |
| ------- | |
| - Issue #24306: Sets component ID for launcher to match 3.5 and later | |
| to avoid downgrading. | |
| - Issue #25022: Removed very outdated PC/example_nt/ directory. | |
| What's New in Python 3.4.3? | |
| =========================== | |
| Release date: 2015-02-23 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #22735: Fix many edge cases (including crashes) involving custom mro() | |
| implementations. | |
| - Issue #22896: Avoid using PyObject_AsCharBuffer(), PyObject_AsReadBuffer() | |
| and PyObject_AsWriteBuffer(). | |
| - Issue #21295: Revert some changes (issue #16795) to AST line numbers and | |
| column offsets that constituted a regression. | |
| - Issue #21408: The default __ne__() now returns NotImplemented if __eq__() | |
| returned NotImplemented. Original patch by Martin Panter. | |
| - Issue #23321: Fixed a crash in str.decode() when error handler returned | |
| replacement string longer than malformed input data. | |
| - Issue #23048: Fix jumping out of an infinite while loop in the pdb. | |
| - Issue #20335: bytes constructor now raises TypeError when encoding or errors | |
| is specified with non-string argument. Based on patch by Renaud Blanch. | |
| - Issue #22335: Fix crash when trying to enlarge a bytearray to 0x7fffffff | |
| bytes on a 32-bit platform. | |
| - Issue #22653: Fix an assertion failure in debug mode when doing a reentrant | |
| dict insertion in debug mode. | |
| - Issue #22643: Fix integer overflow in Unicode case operations (upper, lower, | |
| title, swapcase, casefold). | |
| - Issue #22604: Fix assertion error in debug mode when dividing a complex | |
| number by (nan+0j). | |
| - Issue #22470: Fixed integer overflow issues in "backslashreplace", | |
| "xmlcharrefreplace", and "surrogatepass" error handlers. | |
| - Issue #22520: Fix overflow checking when generating the repr of a unicode | |
| object. | |
| - Issue #22519: Fix overflow checking in PyBytes_Repr. | |
| - Issue #22518: Fix integer overflow issues in latin-1 encoding. | |
| - Issue #23165: Perform overflow checks before allocating memory in the | |
| _Py_char2wchar function. | |
| Library | |
| ------- | |
| - Issue #23399: pyvenv creates relative symlinks where possible. | |
| - Issue #23099: Closing io.BytesIO with exported buffer is rejected now to | |
| prevent corrupting exported buffer. | |
| - Issue #23363: Fix possible overflow in itertools.permutations. | |
| - Issue #23364: Fix possible overflow in itertools.product. | |
| - Issue #23366: Fixed possible integer overflow in itertools.combinations. | |
| - Issue #23369: Fixed possible integer overflow in | |
| _json.encode_basestring_ascii. | |
| - Issue #23353: Fix the exception handling of generators in | |
| PyEval_EvalFrameEx(). At entry, save or swap the exception state even if | |
| PyEval_EvalFrameEx() is called with throwflag=0. At exit, the exception state | |
| is now always restored or swapped, not only if why is WHY_YIELD or | |
| WHY_RETURN. Patch co-written with Antoine Pitrou. | |
| - Issue #18518: timeit now rejects statements which can't be compiled outside | |
| a function or a loop (e.g. "return" or "break"). | |
| - Issue #23094: Fixed readline with frames in Python implementation of pickle. | |
| - Issue #23268: Fixed bugs in the comparison of ipaddress classes. | |
| - Issue #21408: Removed incorrect implementations of __ne__() which didn't | |
| returned NotImplemented if __eq__() returned NotImplemented. The default | |
| __ne__() now works correctly. | |
| - Issue #19996: :class:`email.feedparser.FeedParser` now handles (malformed) | |
| headers with no key rather than assuming the body has started. | |
| - Issue #23248: Update ssl error codes from latest OpenSSL git master. | |
| - Issue #23098: 64-bit dev_t is now supported in the os module. | |
| - Issue #23250: In the http.cookies module, capitalize "HttpOnly" and "Secure" | |
| as they are written in the standard. | |
| - Issue #23063: In the distutils' check command, fix parsing of reST with code or | |
| code-block directives. | |
| - Issue #23209, #23225: selectors.BaseSelector.close() now clears its internal | |
| reference to the selector mapping to break a reference cycle. Initial patch | |
| written by Martin Richard. | |
| - Issue #21356: Make ssl.RAND_egd() optional to support LibreSSL. The | |
| availability of the function is checked during the compilation. Patch written | |
| by Bernard Spil. | |
| - Issue #20896, #22935: The :func:`ssl.get_server_certificate` function now | |
| uses the :data:`~ssl.PROTOCOL_SSLv23` protocol by default, not | |
| :data:`~ssl.PROTOCOL_SSLv3`, for maximum compatibility and support platforms | |
| where :data:`~ssl.PROTOCOL_SSLv3` support is disabled. | |
| - Issue #23111: In the ftplib, make ssl.PROTOCOL_SSLv23 the default protocol | |
| version. | |
| - Issue #23132: Mitigate regression in speed and clarity in functools.total_ordering. | |
| - Issue #22585: On OpenBSD 5.6 and newer, os.urandom() now calls getentropy(), | |
| instead of reading /dev/urandom, to get pseudo-random bytes. | |
| - Issue #23112: Fix SimpleHTTPServer to correctly carry the query string and | |
| fragment when it redirects to add a trailing slash. | |
| - Issue #23093: In the io, module allow more operations to work on detached | |
| streams. | |
| - Issue #19104: pprint now produces evaluable output for wrapped strings. | |
| - Issue #23071: Added missing names to codecs.__all__. Patch by Martin Panter. | |
| - Issue #15513: Added a __sizeof__ implementation for pickle classes. | |
| - Issue #19858: pickletools.optimize() now aware of the MEMOIZE opcode, can | |
| produce more compact result and no longer produces invalid output if input | |
| data contains MEMOIZE opcodes together with PUT or BINPUT opcodes. | |
| - Issue #22095: Fixed HTTPConnection.set_tunnel with default port. The port | |
| value in the host header was set to "None". Patch by Demian Brecht. | |
| - Issue #23016: A warning no longer produces an AttributeError when the program | |
| is run with pythonw.exe. | |
| - Issue #21775: shutil.copytree(): fix crash when copying to VFAT. An exception | |
| handler assumed that that OSError objects always have a 'winerror' attribute. | |
| That is not the case, so the exception handler itself raised AttributeError | |
| when run on Linux (and, presumably, any other non-Windows OS). | |
| Patch by Greg Ward. | |
| - Issue #1218234: Fix inspect.getsource() to load updated source of | |
| reloaded module. Initial patch by Berker Peksag. | |
| - Issue #22959: In the constructor of http.client.HTTPSConnection, prefer the | |
| context's check_hostname attribute over the *check_hostname* parameter. | |
| - Issue #16043: Add a default limit for the amount of data xmlrpclib.gzip_decode | |
| will return. This resolves CVE-2013-1753. | |
| - Issue #22966: Fix __pycache__ pyc file name clobber when pyc_compile is | |
| asked to compile a source file containing multiple dots in the source file | |
| name. | |
| - Issue #21971: Update turtledemo doc and add module to the index. | |
| - Issue #21032. Fixed socket leak if HTTPConnection.getresponse() fails. | |
| Original patch by Martin Panter. | |
| - Issue #22960: Add a context argument to xmlrpclib.ServerProxy constructor. | |
| - Issue #22915: SAX parser now supports files opened with file descriptor or | |
| bytes path. | |
| - Issue #22609: Constructors and update methods of mapping classes in the | |
| collections module now accept the self keyword argument. | |
| - Issue #22788: Add *context* parameter to logging.handlers.HTTPHandler. | |
| - Issue #22921: Allow SSLContext to take the *hostname* parameter even if | |
| OpenSSL doesn't support SNI. | |
| - Issue #22894: TestCase.subTest() would cause the test suite to be stopped | |
| when in failfast mode, even in the absence of failures. | |
| - Issue #22638: SSLv3 is now disabled throughout the standard library. | |
| It can still be enabled by instantiating a SSLContext manually. | |
| - Issue #22370: Windows detection in pathlib is now more robust. | |
| - Issue #22841: Reject coroutines in asyncio add_signal_handler(). | |
| Patch by Ludovic.Gasc. | |
| - Issue #22849: Fix possible double free in the io.TextIOWrapper constructor. | |
| - Issue #12728: Different Unicode characters having the same uppercase but | |
| different lowercase are now matched in case-insensitive regular expressions. | |
| - Issue #22821: Fixed fcntl() with integer argument on 64-bit big-endian | |
| platforms. | |
| - Issue #22406: Fixed the uu_codec codec incorrectly ported to 3.x. | |
| Based on patch by Martin Panter. | |
| - Issue #17293: uuid.getnode() now determines MAC address on AIX using netstat. | |
| Based on patch by Aivars Kalvāns. | |
| - Issue #22769: Fixed ttk.Treeview.tag_has() when called without arguments. | |
| - Issue #22417: Verify certificates by default in httplib (PEP 476). | |
| - Issue #22775: Fixed unpickling of http.cookies.SimpleCookie with protocol 2 | |
| and above. Patch by Tim Graham. | |
| - Issue #22366: urllib.request.urlopen will accept a context object | |
| (SSLContext) as an argument which will then used be for HTTPS connection. | |
| Patch by Alex Gaynor. | |
| - Issue #22776: Brought excluded code into the scope of a try block in | |
| SysLogHandler.emit(). | |
| - Issue #22665: Add missing get_terminal_size and SameFileError to | |
| shutil.__all__. | |
| - Issue #17381: Fixed handling of case-insensitive ranges in regular | |
| expressions. | |
| - Issue #22410: Module level functions in the re module now cache compiled | |
| locale-dependent regular expressions taking into account the locale. | |
| - Issue #22759: Query methods on pathlib.Path() (exists(), is_dir(), etc.) | |
| now return False when the underlying stat call raises NotADirectoryError. | |
| - Issue #8876: distutils now falls back to copying files when hard linking | |
| doesn't work. This allows use with special filesystems such as VirtualBox | |
| shared folders. | |
| - Issue #18853: Fixed ResourceWarning in shlex.__nain__. | |
| - Issue #9351: Defaults set with set_defaults on an argparse subparser | |
| are no longer ignored when also set on the parent parser. | |
| - Issue #21991: Make email.headerregistry's header 'params' attributes | |
| be read-only (MappingProxyType). Previously the dictionary was modifiable | |
| but a new one was created on each access of the attribute. | |
| - Issue #22641: In asyncio, the default SSL context for client connections | |
| is now created using ssl.create_default_context(), for stronger security. | |
| - Issue #22435: Fix a file descriptor leak when SocketServer bind fails. | |
| - Issue #13096: Fixed segfault in CTypes POINTER handling of large | |
| values. | |
| - Issue #11694: Raise ConversionError in xdrlib as documented. Patch | |
| by Filip Gruszczyński and Claudiu Popa. | |
| - Issue #22462: Fix pyexpat's creation of a dummy frame to make it | |
| appear in exception tracebacks. | |
| - Issue #21173: Fix len() on a WeakKeyDictionary when .clear() was called | |
| with an iterator alive. | |
| - Issue #11866: Eliminated race condition in the computation of names | |
| for new threads. | |
| - Issue #21905: Avoid RuntimeError in pickle.whichmodule() when sys.modules | |
| is mutated while iterating. Patch by Olivier Grisel. | |
| - Issue #22219: The zipfile module CLI now adds entries for directories | |
| (including empty directories) in ZIP file. | |
| - Issue #22449: In the ssl.SSLContext.load_default_certs, consult the | |
| environmental variables SSL_CERT_DIR and SSL_CERT_FILE on Windows. | |
| - Issue #20076: Added non derived UTF-8 aliases to locale aliases table. | |
| - Issue #20079: Added locales supported in glibc 2.18 to locale alias table. | |
| - Issue #22396: On 32-bit AIX platform, don't expose os.posix_fadvise() nor | |
| os.posix_fallocate() because their prototypes in system headers are wrong. | |
| - Issue #22517: When an io.BufferedRWPair object is deallocated, clear its | |
| weakrefs. | |
| - Issue #22448: Improve canceled timer handles cleanup to prevent | |
| unbound memory usage. Patch by Joshua Moore-Oliva. | |
| - Issue #23009: Make sure selectors.EpollSelector.select() works when no | |
| FD is registered. | |
| IDLE | |
| ---- | |
| - Issue #20577: Configuration of the max line length for the FormatParagraph | |
| extension has been moved from the General tab of the Idle preferences dialog | |
| to the FormatParagraph tab of the Config Extensions dialog. | |
| Patch by Tal Einat. | |
| - Issue #16893: Update Idle doc chapter to match current Idle and add new | |
| information. | |
| - Issue #3068: Add Idle extension configuration dialog to Options menu. | |
| Changes are written to HOME/.idlerc/config-extensions.cfg. | |
| Original patch by Tal Einat. | |
| - Issue #16233: A module browser (File : Class Browser, Alt+C) requires an | |
| editor window with a filename. When Class Browser is requested otherwise, | |
| from a shell, output window, or 'Untitled' editor, Idle no longer displays | |
| an error box. It now pops up an Open Module box (Alt+M). If a valid name | |
| is entered and a module is opened, a corresponding browser is also opened. | |
| - Issue #4832: Save As to type Python files automatically adds .py to the | |
| name you enter (even if your system does not display it). Some systems | |
| automatically add .txt when type is Text files. | |
| - Issue #21986: Code objects are not normally pickled by the pickle module. | |
| To match this, they are no longer pickled when running under Idle. | |
| - Issue #23180: Rename IDLE "Windows" menu item to "Window". | |
| Patch by Al Sweigart. | |
| Tests | |
| ----- | |
| - Issue #23392: Added tests for marshal C API that works with FILE*. | |
| - Issue #18982: Add tests for CLI of the calendar module. | |
| - Issue #19548: Added some additional checks to test_codecs to ensure that | |
| statements in the updated documentation remain accurate. Patch by Martin | |
| Panter. | |
| - Issue #22838: All test_re tests now work with unittest test discovery. | |
| - Issue #22173: Update lib2to3 tests to use unittest test discovery. | |
| - Issue #16000: Convert test_curses to use unittest. | |
| - Issue #21456: Skip two tests in test_urllib2net.py if _ssl module not | |
| present. Patch by Remi Pointel. | |
| - Issue #22770: Prevent some Tk segfaults on OS X when running gui tests. | |
| - Issue #23211: Workaround test_logging failure on some OS X 10.6 systems. | |
| - Issue #23345: Prevent test_ssl failures with large OpenSSL patch level | |
| values (like 0.9.8zc). | |
| - Issue #22289: Prevent test_urllib2net failures due to ftp connection timeout. | |
| Build | |
| ----- | |
| - Issue #15506: Use standard PKG_PROG_PKG_CONFIG autoconf macro in the configure | |
| script. | |
| - Issue #22935: Allow the ssl module to be compiled if openssl doesn't support | |
| SSL 3. | |
| - Issue #16537: Check whether self.extensions is empty in setup.py. Patch by | |
| Jonathan Hosmer. | |
| - Issue #18096: Fix library order returned by python-config. | |
| - Issue #17219: Add library build dir for Python extension cross-builds. | |
| - Issue #17128: Use private version of OpenSSL for 3.4.3 OS X 10.5+ installer. | |
| C API | |
| ----- | |
| - Issue #22079: PyType_Ready() now checks that statically allocated type has | |
| no dynamically allocated bases. | |
| Documentation | |
| ------------- | |
| - Issue #19548: Update the codecs module documentation to better cover the | |
| distinction between text encodings and other codecs, together with other | |
| clarifications. Patch by Martin Panter. | |
| - Issue #22914: Update the Python 2/3 porting HOWTO to describe a more automated | |
| approach. | |
| - Issue #21514: The documentation of the json module now refers to new JSON RFC | |
| 7159 instead of obsoleted RFC 4627. | |
| Tools/Demos | |
| ----------- | |
| - Issue #22314: pydoc now works when the LINES environment variable is set. | |
| Windows | |
| ------- | |
| - Issue #17896: The Windows build scripts now expect external library sources | |
| to be in ``PCbuild\..\externals`` rather than ``PCbuild\..\..``. | |
| - Issue #17717: The Windows build scripts now use a copy of NASM pulled from | |
| svn.python.org to build OpenSSL. | |
| - Issue #22644: The bundled version of OpenSSL has been updated to 1.0.1j. | |
| What's New in Python 3.4.2? | |
| =========================== | |
| Release date: 2014-10-06 | |
| Library | |
| ------- | |
| - Issue #10510: distutils register and upload methods now use HTML standards | |
| compliant CRLF line endings. | |
| - Issue #9850: Fixed macpath.join() for empty first component. Patch by | |
| Oleg Oshmyan. | |
| - Issue #22427: TemporaryDirectory no longer attempts to clean up twice when | |
| used in the with statement in generator. | |
| - Issue #20912: Now directories added to ZIP file have correct Unix and MS-DOS | |
| directory attributes. | |
| - Issue #21866: ZipFile.close() no longer writes ZIP64 central directory | |
| records if allowZip64 is false. | |
| - Issue #22415: Fixed debugging output of the GROUPREF_EXISTS opcode in the re | |
| module. Removed trailing spaces in debugging output. | |
| - Issue #22423: Unhandled exception in thread no longer causes unhandled | |
| AttributeError when sys.stderr is None. | |
| - Issue #21332: Ensure that ``bufsize=1`` in subprocess.Popen() selects | |
| line buffering, rather than block buffering. Patch by Akira Li. | |
| What's New in Python 3.4.2rc1? | |
| ============================== | |
| Release date: 2014-09-22 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #22258: Fix the internal function set_inheritable() on Illumos. | |
| This platform exposes the function ``ioctl(FIOCLEX)``, but calling it fails | |
| with errno is ENOTTY: "Inappropriate ioctl for device". set_inheritable() | |
| now falls back to the slower ``fcntl()`` (``F_GETFD`` and then ``F_SETFD``). | |
| - Issue #21669: With the aid of heuristics in SyntaxError.__init__, the | |
| parser now attempts to generate more meaningful (or at least more search | |
| engine friendly) error messages when "exec" and "print" are used as | |
| statements. | |
| - Issue #21642: In the conditional if-else expression, allow an integer written | |
| with no space between itself and the ``else`` keyword (e.g. ``True if 42else | |
| False``) to be valid syntax. | |
| - Issue #21523: Fix over-pessimistic computation of the stack effect of | |
| some opcodes in the compiler. This also fixes a quadratic compilation | |
| time issue noticeable when compiling code with a large number of "and" | |
| and "or" operators. | |
| Library | |
| ------- | |
| - Issue #21091: Fix API bug: email.message.EmailMessage.is_attachment is now | |
| a method. Since EmailMessage is provisional, we can change the API in a | |
| maintenance release, but we use a trick to remain backward compatible with | |
| 3.4.0/1. | |
| - Issue #21079: Fix email.message.EmailMessage.is_attachment to return the | |
| correct result when the header has parameters as well as a value. | |
| - Issue #22247: Add NNTPError to nntplib.__all__. | |
| - Issue #4180: The warnings registries are now reset when the filters | |
| are modified. | |
| - Issue #22419: Limit the length of incoming HTTP request in wsgiref server to | |
| 65536 bytes and send a 414 error code for higher lengths. Patch contributed | |
| by Devin Cook. | |
| - Lax cookie parsing in http.cookies could be a security issue when combined | |
| with non-standard cookie handling in some web browsers. Reported by | |
| Sergey Bobrov. | |
| - Issue #22384: An exception in Tkinter callback no longer crashes the program | |
| when it is run with pythonw.exe. | |
| - Issue #22168: Prevent turtle AttributeError with non-default Canvas on OS X. | |
| - Issue #21147: sqlite3 now raises an exception if the request contains a null | |
| character instead of truncate it. Based on patch by Victor Stinner. | |
| - Issue #21951: Fixed a crash in Tkinter on AIX when called Tcl command with | |
| empty string or tuple argument. | |
| - Issue #21951: Tkinter now most likely raises MemoryError instead of crash | |
| if the memory allocation fails. | |
| - Issue #22338: Fix a crash in the json module on memory allocation failure. | |
| - Issue #22226: First letter no longer is stripped from the "status" key in | |
| the result of Treeview.heading(). | |
| - Issue #19524: Fixed resource leak in the HTTP connection when an invalid | |
| response is received. Patch by Martin Panter. | |
| - Issue #22051: turtledemo no longer reloads examples to re-run them. | |
| Initialization of variables and gui setup should be done in main(), | |
| which is called each time a demo is run, but not on import. | |
| - Issue #21933: Turtledemo users can change the code font size with a menu | |
| selection or control(command) '-' or '+' or control-mousewheel. | |
| Original patch by Lita Cho. | |
| - Issue #21597: The separator between the turtledemo text pane and the drawing | |
| canvas can now be grabbed and dragged with a mouse. The code text pane can | |
| be widened to easily view or copy the full width of the text. The canvas | |
| can be widened on small screens. Original patches by Jan Kanis and Lita Cho. | |
| - Issue #18132: Turtledemo buttons no longer disappear when the window is | |
| shrunk. Original patches by Jan Kanis and Lita Cho. | |
| - Issue #22216: smtplib now resets its state more completely after a quit. The | |
| most obvious consequence of the previous behavior was a STARTTLS failure | |
| during a connect/starttls/quit/connect/starttls sequence. | |
| - Issue #22185: Fix an occasional RuntimeError in threading.Condition.wait() | |
| caused by mutation of the waiters queue without holding the lock. Patch | |
| by Doug Zongker. | |
| - Issue #22182: Use e.args to unpack exceptions correctly in | |
| distutils.file_util.move_file. Patch by Claudiu Popa. | |
| - The webbrowser module now uses subprocess's start_new_session=True rather | |
| than a potentially risky preexec_fn=os.setsid call. | |
| - Issue #22236: Fixed Tkinter images copying operations in NoDefaultRoot mode. | |
| - Issue #22191: Fix warnings.__all__. | |
| - Issue #15696: Add a __sizeof__ implementation for mmap objects on Windows. | |
| - Issue #22068: Avoided reference loops with Variables and Fonts in Tkinter. | |
| - Issue #22165: SimpleHTTPRequestHandler now supports undecodable file names. | |
| - Issue #8797: Raise HTTPError on failed Basic Authentication immediately. | |
| Initial patch by Sam Bull. | |
| - Issue #20729: Restored the use of lazy iterkeys()/itervalues()/iteritems() | |
| in the mailbox module. | |
| - Issue #21448: Changed FeedParser feed() to avoid O(N**2) behavior when | |
| parsing long line. Original patch by Raymond Hettinger. | |
| - Issue #22184: The functools LRU Cache decorator factory now gives an earlier | |
| and clearer error message when the user forgets the required parameters. | |
| - Issue #17923: glob() patterns ending with a slash no longer match non-dirs on | |
| AIX. Based on patch by Delhallt. | |
| - Issue #21121: Don't force 3rd party C extensions to be built with | |
| -Werror=declaration-after-statement. | |
| - Issue #21975: Fixed crash when using uninitialized sqlite3.Row (in particular | |
| when unpickling pickled sqlite3.Row). sqlite3.Row is now initialized in the | |
| __new__() method. | |
| - Issue #21580: Now Tkinter correctly handles bytes arguments passed to Tk. | |
| In particular this allows to initialize images from binary data. | |
| - Issue #17172: Make turtledemo start as active on OS X even when run with | |
| subprocess. Patch by Lita Cho. | |
| - Issue #21704: Fix build error for _multiprocessing when semaphores | |
| are not available. Patch by Arfrever Frehtes Taifersar Arahesis. | |
| - Fix repr(_socket.socket) on Windows 64-bit: don't fail with OverflowError | |
| on closed socket. repr(socket.socket) already works fine. | |
| - Issue #16133: The asynchat.async_chat.handle_read() method now ignores | |
| BlockingIOError exceptions. | |
| - Issue #22044: Fixed premature DECREF in call_tzinfo_method. | |
| Patch by Tom Flanagan. | |
| - Issue #19884: readline: Disable the meta modifier key if stdout is not | |
| a terminal to not write the ANSI sequence "\033[1034h" into stdout. This | |
| sequence is used on some terminal (ex: TERM=xterm-256color") to enable | |
| support of 8 bit characters. | |
| - Issue #21888: plistlib's load() and loads() now work if the fmt parameter is | |
| specified. | |
| - Issue #21044: tarfile.open() now handles fileobj with an integer 'name' | |
| attribute. Based on patch by Antoine Pietri. | |
| - Issue #21867: Prevent turtle crash due to invalid undo buffer size. | |
| - Issue #19076: Don't pass the redundant 'file' argument to self.error(). | |
| - Issue #21942: Fixed source file viewing in pydoc's server mode on Windows. | |
| - Issue #11259: asynchat.async_chat().set_terminator() now raises a ValueError | |
| if the number of received bytes is negative. | |
| - Issue #12523: asynchat.async_chat.push() now raises a TypeError if it doesn't | |
| get a bytes string | |
| - Issue #21707: Add missing kwonlyargcount argument to | |
| ModuleFinder.replace_paths_in_code(). | |
| - Issue #20639: calling Path.with_suffix('') allows removing the suffix | |
| again. Patch by July Tikhonov. | |
| - Issue #21714: Disallow the construction of invalid paths using | |
| Path.with_name(). Original patch by Antony Lee. | |
| - Issue #21897: Fix a crash with the f_locals attribute with closure | |
| variables when frame.clear() has been called. | |
| - Issue #21151: Fixed a segfault in the winreg module when ``None`` is passed | |
| as a ``REG_BINARY`` value to SetValueEx. Patch by John Ehresman. | |
| - Issue #21090: io.FileIO.readall() does not ignore I/O errors anymore. Before, | |
| it ignored I/O errors if at least the first C call read() succeed. | |
| - Issue #21781: ssl.RAND_add() now supports strings longer than 2 GB. | |
| - Issue #11453: asyncore: emit a ResourceWarning when an unclosed file_wrapper | |
| object is destroyed. The destructor now closes the file if needed. The | |
| close() method can now be called twice: the second call does nothing. | |
| - Issue #21858: Better handling of Python exceptions in the sqlite3 module. | |
| - Issue #21476: Make sure the email.parser.BytesParser TextIOWrapper is | |
| discarded after parsing, so the input file isn't unexpectedly closed. | |
| - Issue #21729: Used the "with" statement in the dbm.dumb module to ensure | |
| files closing. Patch by Claudiu Popa. | |
| - Issue #21491: socketserver: Fix a race condition in child processes reaping. | |
| - Issue #21832: Require named tuple inputs to be exact strings. | |
| - Issue #19145: The times argument for itertools.repeat now handles | |
| negative values the same way for keyword arguments as it does for | |
| positional arguments. | |
| - Issue #21812: turtle.shapetransform did not transform the turtle on the | |
| first call. (Issue identified and fixed by Lita Cho.) | |
| - Issue #21635: The difflib SequenceMatcher.get_matching_blocks() method | |
| cache didn't match the actual result. The former was a list of tuples | |
| and the latter was a list of named tuples. | |
| - Issue #21722: The distutils "upload" command now exits with a non-zero | |
| return code when uploading fails. Patch by Martin Dengler. | |
| - Issue #21723: asyncio.Queue: support any type of number (ex: float) for the | |
| maximum size. Patch written by Vajrasky Kok. | |
| - Issue #21326: Add a new is_closed() method to asyncio.BaseEventLoop. | |
| run_forever() and run_until_complete() methods of asyncio.BaseEventLoop now | |
| raise an exception if the event loop was closed. | |
| - Issue #21774: Fixed NameError for an incorrect variable reference in the | |
| XML Minidom code for creating processing instructions. | |
| (Found and fixed by Claudiu Popa.) | |
| - Issue #21766: Prevent a security hole in CGIHTTPServer by URL unquoting paths | |
| before checking for a CGI script at that path. | |
| - Issue #21310: Fixed possible resource leak in failed open(). | |
| - Issue #21677: Fixed chaining nonnormalized exceptions in io close() methods. | |
| - Issue #11709: Fix the pydoc.help function to not fail when sys.stdin is not a | |
| valid file. | |
| - Issue #13223: Fix pydoc.writedoc so that the HTML documentation for methods | |
| that use 'self' in the example code is generated correctly. | |
| - Issue #21463: In urllib.request, fix pruning of the FTP cache. | |
| - Issue #21618: The subprocess module could fail to close open fds that were | |
| inherited by the calling process and already higher than POSIX resource | |
| limits would otherwise allow. On systems with a functioning /proc/self/fd | |
| or /dev/fd interface the max is now ignored and all fds are closed. | |
| - Issue #21552: Fixed possible integer overflow of too long string lengths in | |
| the tkinter module on 64-bit platforms. | |
| - Issue #14315: The zipfile module now ignores extra fields in the central | |
| directory that are too short to be parsed instead of letting a struct.unpack | |
| error bubble up as this "bad data" appears in many real world zip files in | |
| the wild and is ignored by other zip tools. | |
| - Issue #21402: tkinter.ttk now works when default root window is not set. | |
| - Issue #10203: sqlite3.Row now truly supports sequence protocol. In particular | |
| it supports reverse() and negative indices. Original patch by Claudiu Popa. | |
| - Issue #18807: If copying (no symlinks) specified for a venv, then the python | |
| interpreter aliases (python, python3) are now created by copying rather than | |
| symlinking. | |
| - Issue #14710: pkgutil.get_loader() no longer raises an exception when None is | |
| found in sys.modules. | |
| - Issue #14710: pkgutil.find_loader() no longer raises an exception when a | |
| module doesn't exist. | |
| - Issue #21481: Argparse equality and inequality tests now return | |
| NotImplemented when comparing to an unknown type. | |
| - Issue #8743: Fix interoperability between set objects and the | |
| collections.Set() abstract base class. | |
| - Issue #13355: random.triangular() no longer fails with a ZeroDivisionError | |
| when low equals high. | |
| - Issue #21538: The plistlib module now supports loading of binary plist files | |
| when reference or offset size is not a power of two. | |
| - Issue #21801: Validate that __signature__ is None or an instance of Signature. | |
| - Issue #21923: Prevent AttributeError in distutils.sysconfig.customize_compiler | |
| due to possible uninitialized _config_vars. | |
| - Issue #21323: Fix http.server to again handle scripts in CGI subdirectories, | |
| broken by the fix for security issue #19435. Patch by Zach Byrne. | |
| Extension Modules | |
| ----------------- | |
| - Issue #22176: Update the ctypes module's libffi to v3.1. This release | |
| adds support for the Linux AArch64 and POWERPC ELF ABIv2 little endian | |
| architectures. | |
| Build | |
| ----- | |
| - Issue #15661: python.org OS X installers are now distributed as signed | |
| installer packages compatible with the Gatekeeper security feature. | |
| - Issue #21958: Define HAVE_ROUND when building with Visual Studio 2013 and | |
| above. Patch by Zachary Turner. | |
| - Issue #15759: "make suspicious", "make linkcheck" and "make doctest" in Doc/ | |
| now display special message when and only when there are failures. | |
| - Issue #17095: Fix Modules/Setup *shared* support. | |
| - Issue #21811: Anticipated fixes to support OS X versions > 10.9. | |
| - Issue #21166: Prevent possible segfaults and other random failures of | |
| python --generate-posix-vars in pybuilddir.txt build target. | |
| IDLE | |
| ---- | |
| - Issue #17390: Adjust Editor window title; remove 'Python', | |
| move version to end. | |
| - Issue #14105: Idle debugger breakpoints no longer disappear | |
| when inseting or deleting lines. | |
| - Issue #17172: Turtledemo can now be run from Idle. | |
| Currently, the entry is on the Help menu, but it may move to Run. | |
| Patch by Ramchandra Apt and Lita Cho. | |
| - Issue #21765: Add support for non-ascii identifiers to HyperParser. | |
| - Issue #21940: Add unittest for WidgetRedirector. Initial patch by Saimadhav | |
| Heblikar. | |
| - Issue #18592: Add unittest for SearchDialogBase. Patch by Phil Webster. | |
| - Issue #21694: Add unittest for ParenMatch. Patch by Saimadhav Heblikar. | |
| - Issue #21686: add unittest for HyperParser. Original patch by Saimadhav | |
| Heblikar. | |
| - Issue #12387: Add missing upper(lower)case versions of default Windows key | |
| bindings for Idle so Caps Lock does not disable them. Patch by Roger Serwy. | |
| - Issue #21695: Closing a Find-in-files output window while the search is | |
| still in progress no longer closes Idle. | |
| - Issue #18910: Add unittest for textView. Patch by Phil Webster. | |
| - Issue #18292: Add unittest for AutoExpand. Patch by Saihadhav Heblikar. | |
| - Issue #18409: Add unittest for AutoComplete. Patch by Phil Webster. | |
| Tests | |
| ----- | |
| - Issue #22166: With the assistance of a new internal _codecs._forget_codec | |
| helping function, test_codecs now clears the encoding caches to avoid the | |
| appearance of a reference leak | |
| - Issue #22236: Tkinter tests now don't reuse default root window. New root | |
| window is created for every test class. | |
| - Issue #20746: Fix test_pdb to run in refleak mode (-R). Patch by Xavier | |
| de Gaye. | |
| - Issue #22060: test_ctypes has been somewhat cleaned up and simplified; it | |
| now uses unittest test discovery to find its tests. | |
| - Issue #22104: regrtest.py no longer holds a reference to the suite of tests | |
| loaded from test modules that don't define test_main(). | |
| - Issue #22002: Added ``load_package_tests`` function to test.support and used | |
| it to implement/augment test discovery in test_asyncio, test_email, | |
| test_importlib, test_json, and test_tools. | |
| - Issue #21976: Fix test_ssl to accept LibreSSL version strings. Thanks | |
| to William Orr. | |
| - Issue #21918: Converted test_tools from a module to a package containing | |
| separate test files for each tested script. | |
| - Issue #20155: Changed HTTP method names in failing tests in test_httpservers | |
| so that packet filtering software (specifically Windows Base Filtering Engine) | |
| does not interfere with the transaction semantics expected by the tests. | |
| - Issue #19493: Refactored the ctypes test package to skip tests explicitly | |
| rather than silently. | |
| - Issue #18492: All resources are now allowed when tests are not run by | |
| regrtest.py. | |
| - Issue #21634: Fix pystone micro-benchmark: use floor division instead of true | |
| division to benchmark integers instead of floating point numbers. Set pystone | |
| version to 1.2. Patch written by Lennart Regebro. | |
| - Issue #21605: Added tests for Tkinter images. | |
| - Issue #21493: Added test for ntpath.expanduser(). Original patch by | |
| Claudiu Popa. | |
| - Issue #19925: Added tests for the spwd module. Original patch by Vajrasky Kok. | |
| - Issue #21522: Added Tkinter tests for Listbox.itemconfigure(), | |
| PanedWindow.paneconfigure(), and Menu.entryconfigure(). | |
| Documentation | |
| ------------- | |
| - Issue #21777: The binary sequence methods on bytes and bytearray are now | |
| documented explicitly, rather than assuming users will be able to derive | |
| the expected behaviour from the behaviour of the corresponding str methods. | |
| Windows | |
| ------- | |
| - Issue #21671, #22160, CVE-2014-0224: The bundled version of OpenSSL has been | |
| updated to 1.0.1i. | |
| - Issue #10747: Use versioned labels in the Windows start menu. | |
| Patch by Olive Kilburn. | |
| Tools/Demos | |
| ----------- | |
| - Issue #22201: Command-line interface of the zipfile module now correctly | |
| extracts ZIP files with directory entries. Patch by Ryan Wilson. | |
| - Issue #21906: Make Tools/scripts/md5sum.py work in Python 3. | |
| Patch by Zachary Ware. | |
| - Issue #21629: Fix Argument Clinic's "--converters" feature. | |
| What's New in Python 3.4.1? | |
| =========================== | |
| Release date: 2014-05-18 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #21418: Fix a crash in the builtin function super() when called without | |
| argument and without current frame (ex: embedded Python). | |
| - Issue #21425: Fix flushing of standard streams in the interactive | |
| interpreter. | |
| - Issue #21435: In rare cases, when running finalizers on objects in cyclic | |
| trash a bad pointer dereference could occur due to a subtle flaw in | |
| internal iteration logic. | |
| Library | |
| ------- | |
| - Issue #10744: Fix PEP 3118 format strings on ctypes objects with a nontrivial | |
| shape. | |
| - Issue #20998: Fixed re.fullmatch() of repeated single character pattern | |
| with ignore case. Original patch by Matthew Barnett. | |
| - Issue #21075: fileinput.FileInput now reads bytes from standard stream if | |
| binary mode is specified. Patch by Sam Kimbrel. | |
| - Issue #21396: Fix TextIOWrapper(..., write_through=True) to not force a | |
| flush() on the underlying binary stream. Patch by akira. | |
| - Issue #21470: Do a better job seeding the random number generator by | |
| using enough bytes to span the full state space of the Mersenne Twister. | |
| - Issue #21398: Fix an unicode error in the pydoc pager when the documentation | |
| contains characters not encodable to the stdout encoding. | |
| Tests | |
| ----- | |
| - Issue #17756: Fix test_code test when run from the installed location. | |
| - Issue #17752: Fix distutils tests when run from the installed location. | |
| IDLE | |
| ---- | |
| - Issue #18104: Add idlelib/idle_test/htest.py with a few sample tests to begin | |
| consolidating and improving human-validated tests of Idle. Change other files | |
| as needed to work with htest. Running the module as __main__ runs all tests. | |
| What's New in Python 3.4.1rc1? | |
| ============================== | |
| Release date: 2014-05-05 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #21274: Define PATH_MAX for GNU/Hurd in Python/pythonrun.c. | |
| - Issue #21209: Fix sending tuples to custom generator objects with the yield | |
| from syntax. | |
| - Issue #21134: Fix segfault when str is called on an uninitialized | |
| UnicodeEncodeError, UnicodeDecodeError, or UnicodeTranslateError object. | |
| - Issue #19537: Fix PyUnicode_DATA() alignment under m68k. Patch by | |
| Andreas Schwab. | |
| - Issue #20929: Add a type cast to avoid shifting a negative number. | |
| - Issue #20731: Properly position in source code files even if they | |
| are opened in text mode. Patch by Serhiy Storchaka. | |
| - Issue #20637: Key-sharing now also works for instance dictionaries of | |
| subclasses. Patch by Peter Ingebretson. | |
| - Issue #12546: Allow ``\x00`` to be used as a fill character when using str, int, | |
| float, and complex __format__ methods. | |
| - Issue #13598: Modify string.Formatter to support auto-numbering of | |
| replacement fields. It now matches the behavior of str.format() in | |
| this regard. Patches by Phil Elson and Ramchandra Apte. | |
| Library | |
| ------- | |
| - Issue #21088: Bugfix for curses.window.addch() regression in 3.4.0. | |
| In porting to Argument Clinic, the first two arguments were reversed. | |
| - Issue #21469: Reduced the risk of false positives in robotparser by | |
| checking to make sure that robots.txt has been read or does not exist | |
| prior to returning True in can_fetch(). | |
| - Issue #21321: itertools.islice() now releases the reference to the source | |
| iterator when the slice is exhausted. Patch by Anton Afanasyev. | |
| - Issue #9815: assertRaises now tries to clear references to local variables | |
| in the exception's traceback. | |
| - Issue #13204: Calling sys.flags.__new__ would crash the interpreter, | |
| now it raises a TypeError. | |
| - Issue #19385: Make operations on a closed dbm.dumb database always raise the | |
| same exception. | |
| - Issue #21207: Detect when the os.urandom cached fd has been closed or | |
| replaced, and open it anew. | |
| - Issue #21291: subprocess's Popen.wait() is now thread safe so that | |
| multiple threads may be calling wait() or poll() on a Popen instance | |
| at the same time without losing the Popen.returncode value. | |
| - Issue #21127: Path objects can now be instantiated from str subclass | |
| instances (such as ``numpy.str_``). | |
| - Issue #15002: urllib.response object to use _TemporaryFileWrapper (and | |
| _TemporaryFileCloser) facility. Provides a better way to handle file | |
| descriptor close. Patch contributed by Christian Theune. | |
| - Issue #12220: mindom now raises a custom ValueError indicating it doesn't | |
| support spaces in URIs instead of letting a 'split' ValueError bubble up. | |
| - Issue #21239: patch.stopall() didn't work deterministically when the same | |
| name was patched more than once. | |
| - Issue #21222: Passing name keyword argument to mock.create_autospec now | |
| works. | |
| - Issue #21197: Add lib64 -> lib symlink in venvs on 64-bit non-OS X POSIX. | |
| - Issue #17498: Some SMTP servers disconnect after certain errors, violating | |
| strict RFC conformance. Instead of losing the error code when we issue the | |
| subsequent RSET, smtplib now returns the error code and defers raising the | |
| SMTPServerDisconnected error until the next command is issued. | |
| - Issue #17826: setting an iterable side_effect on a mock function created by | |
| create_autospec now works. Patch by Kushal Das. | |
| - Issue #7776: Fix ``Host:`` header and reconnection when using | |
| http.client.HTTPConnection.set_tunnel(). Patch by Nikolaus Rath. | |
| - Issue #20968: unittest.mock.MagicMock now supports division. | |
| Patch by Johannes Baiter. | |
| - Issue #21529 (CVE-2014-4616): Fix arbitrary memory access in | |
| JSONDecoder.raw_decode with a negative second parameter. Bug reported by Guido | |
| Vranken. | |
| - Issue #21169: getpass now handles non-ascii characters that the | |
| input stream encoding cannot encode by re-encoding using the | |
| replace error handler. | |
| - Issue #21171: Fixed undocumented filter API of the rot13 codec. | |
| Patch by Berker Peksag. | |
| - Issue #21172: isinstance check relaxed from dict to collections.Mapping. | |
| - Issue #21155: asyncio.EventLoop.create_unix_server() now raises a ValueError | |
| if path and sock are specified at the same time. | |
| - Issue #21149: Improved thread-safety in logging cleanup during interpreter | |
| shutdown. Thanks to Devin Jeanpierre for the patch. | |
| - Issue #20145: `assertRaisesRegex` and `assertWarnsRegex` now raise a | |
| TypeError if the second argument is not a string or compiled regex. | |
| - Issue #21058: Fix a leak of file descriptor in | |
| :func:`tempfile.NamedTemporaryFile`, close the file descriptor if | |
| :func:`io.open` fails | |
| - Issue #21200: Return None from pkgutil.get_loader() when __spec__ is missing. | |
| - Issue #21013: Enhance ssl.create_default_context() when used for server side | |
| sockets to provide better security by default. | |
| - Issue #20633: Replace relative import by absolute import. | |
| - Issue #20980: Stop wrapping exception when using ThreadPool. | |
| - Issue #21082: In os.makedirs, do not set the process-wide umask. Note this | |
| changes behavior of makedirs when exist_ok=True. | |
| - Issue #20990: Fix issues found by pyflakes for multiprocessing. | |
| - Issue #21015: SSL contexts will now automatically select an elliptic | |
| curve for ECDH key exchange on OpenSSL 1.0.2 and later, and otherwise | |
| default to "prime256v1". | |
| - Issue #20995: Enhance default ciphers used by the ssl module to enable | |
| better security an prioritize perfect forward secrecy. | |
| - Issue #20884: Don't assume that __file__ is defined on importlib.__init__. | |
| - Issue #21499: Ignore __builtins__ in several test_importlib.test_api tests. | |
| - Issue #20879: Delay the initialization of encoding and decoding tables for | |
| base32, ascii85 and base85 codecs in the base64 module, and delay the | |
| initialization of the unquote_to_bytes() table of the urllib.parse module, to | |
| not waste memory if these modules are not used. | |
| - Issue #19157: Include the broadcast address in the usable hosts for IPv6 | |
| in ipaddress. | |
| - Issue #11599: When an external command (e.g. compiler) fails, distutils now | |
| prints out the whole command line (instead of just the command name) if the | |
| environment variable DISTUTILS_DEBUG is set. | |
| - Issue #4931: distutils should not produce unhelpful "error: None" messages | |
| anymore. distutils.util.grok_environment_error is kept but doc-deprecated. | |
| - Issue #20875: Prevent possible gzip "'read' is not defined" NameError. | |
| Patch by Claudiu Popa. | |
| - Issue #11558: ``email.message.Message.attach`` now returns a more | |
| useful error message if ``attach`` is called on a message for which | |
| ``is_multipart`` is False. | |
| - Issue #20283: RE pattern methods now accept the string keyword parameters | |
| as documented. The pattern and source keyword parameters are left as | |
| deprecated aliases. | |
| - Issue #20778: Fix modulefinder to work with bytecode-only modules. | |
| - Issue #20791: copy.copy() now doesn't make a copy when the input is | |
| a bytes object. Initial patch by Peter Otten. | |
| - Issue #19748: On AIX, time.mktime() now raises an OverflowError for year | |
| outsize range [1902; 2037]. | |
| - Issue #20816: Fix inspect.getcallargs() to raise correct TypeError for | |
| missing keyword-only arguments. Patch by Jeremiah Lowin. | |
| - Issue #20817: Fix inspect.getcallargs() to fail correctly if more | |
| than 3 arguments are missing. Patch by Jeremiah Lowin. | |
| - Issue #6676: Ensure a meaningful exception is raised when attempting | |
| to parse more than one XML document per pyexpat xmlparser instance. | |
| (Original patches by Hirokazu Yamamoto and Amaury Forgeot d'Arc, with | |
| suggested wording by David Gutteridge) | |
| - Issue #21117: Fix inspect.signature to better support functools.partial. | |
| Due to the specifics of functools.partial implementation, | |
| positional-or-keyword arguments passed as keyword arguments become | |
| keyword-only. | |
| - Issue #21209: Fix asyncio.tasks.CoroWrapper to workaround a bug | |
| in yield-from implementation in CPythons prior to 3.4.1. | |
| - asyncio: Add gi_{frame,running,code} properties to CoroWrapper | |
| (upstream issue #163). | |
| - Issue #21311: Avoid exception in _osx_support with non-standard compiler | |
| configurations. Patch by John Szakmeister. | |
| - Issue #11571: Ensure that the turtle window becomes the topmost window | |
| when launched on OS X. | |
| Extension Modules | |
| ----------------- | |
| - Issue #21276: posixmodule: Don't define USE_XATTRS on KFreeBSD and the Hurd. | |
| - Issue #21226: Set up modules properly in PyImport_ExecCodeModuleObject | |
| (and friends). | |
| IDLE | |
| ---- | |
| - Issue #21139: Change default paragraph width to 72, the PEP 8 recommendation. | |
| - Issue #21284: Paragraph reformat test passes after user changes reformat width. | |
| - Issue #17654: Ensure IDLE menus are customized properly on OS X for | |
| non-framework builds and for all variants of Tk. | |
| Build | |
| ----- | |
| - The Windows build now includes OpenSSL 1.0.1g | |
| - Issue #21285: Refactor and fix curses configure check to always search | |
| in a ncursesw directory. | |
| - Issue #15234: For BerkeleyDB and Sqlite, only add the found library and | |
| include directories if they aren't already being searched. This avoids | |
| an explicit runtime library dependency. | |
| - Issue #20644: OS X installer build support for documentation build changes | |
| in 3.4.1: assume externally supplied sphinx-build is available in /usr/bin. | |
| C API | |
| ----- | |
| - Issue #20942: PyImport_ImportFrozenModuleObject() no longer sets __file__ to | |
| match what importlib does; this affects _frozen_importlib as well as any | |
| module loaded using imp.init_frozen(). | |
| Documentation | |
| ------------- | |
| - Issue #17386: Expanded functionality of the ``Doc/make.bat`` script to make | |
| it much more comparable to ``Doc/Makefile``. | |
| - Issue #21043: Remove the recommendation for specific CA organizations and to | |
| mention the ability to load the OS certificates. | |
| - Issue #20765: Add missing documentation for PurePath.with_name() and | |
| PurePath.with_suffix(). | |
| - Issue #19407: New package installation and distribution guides based on | |
| the Python Packaging Authority tools. Existing guides have been retained | |
| as legacy links from the distutils docs, as they still contain some | |
| required reference material for tool developers that isn't recorded | |
| anywhere else. | |
| - Issue #19697: Document cases where __main__.__spec__ is None. | |
| Tests | |
| ----- | |
| - Issue #18604: Consolidated checks for GUI availability. All platforms now | |
| at least check whether Tk can be instantiated when the GUI resource is | |
| requested. | |
| - Issue #21275: Fix a socket test on KFreeBSD. | |
| - Issue #21223: Pass test_site/test_startup_imports when some of the extensions | |
| are built as builtins. | |
| - Issue #20635: Added tests for Tk geometry managers. | |
| - Add test case for freeze. | |
| - Issue #20743: Fix a reference leak in test_tcl. | |
| - Issue #21097: Move test_namespace_pkgs into test_importlib. | |
| - Issue #20939: Avoid various network test failures due to new | |
| redirect of http://www.python.org/ to https://www.python.org: | |
| use http://www.example.com instead. | |
| - Issue #20668: asyncio tests no longer rely on tests.txt file. | |
| (Patch by Vajrasky Kok) | |
| - Issue #21093: Prevent failures of ctypes test_macholib on OS X if a | |
| copy of libz exists in $HOME/lib or /usr/local/lib. | |
| Tools/Demos | |
| ----------- | |
| - Add support for ``yield from`` to 2to3. | |
| - Add support for the PEP 465 matrix multiplication operator to 2to3. | |
| - Issue #16047: Fix module exception list and __file__ handling in freeze. | |
| Patch by Meador Inge. | |
| - Issue #11824: Consider ABI tags in freeze. Patch by Meador Inge. | |
| - Issue #20535: PYTHONWARNING no longer affects the run_tests.py script. | |
| Patch by Arfrever Frehtes Taifersar Arahesis. | |
| What's New in Python 3.4.0? | |
| =========================== | |
| Release date: 2014-03-16 | |
| Library | |
| ------- | |
| - Issue #20939: Fix test_geturl failure in test_urllibnet due to | |
| new redirect of http://www.python.org/ to https://www.python.org. | |
| Documentation | |
| ------------- | |
| - Merge in all documentation changes since branching 3.4.0rc1. | |
| What's New in Python 3.4.0 release candidate 3? | |
| =============================================== | |
| Release date: 2014-03-09 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #20786: Fix signatures for dict.__delitem__ and | |
| property.__delete__ builtins. | |
| Library | |
| ------- | |
| - Issue #20839: Don't trigger a DeprecationWarning in the still supported | |
| pkgutil.get_loader() API when __loader__ isn't set on a module (nor | |
| when pkgutil.find_loader() is called directly). | |
| Build | |
| ----- | |
| - Issue #14512: Launch pydoc -b instead of pydocgui.pyw on Windows. | |
| - Issue #20748: Uninstalling pip does not leave behind the pyc of | |
| the uninstaller anymore. | |
| - Issue #20568: The Windows installer now installs the unversioned ``pip`` | |
| command in addition to the versioned ``pip3`` and ``pip3.4`` commands. | |
| - Issue #20757: The ensurepip helper for the Windows uninstaller now skips | |
| uninstalling pip (rather than failing) if the user has updated pip to a | |
| different version from the one bundled with ensurepip. | |
| - Issue #20465: Update OS X and Windows installer builds to use | |
| SQLite 3.8.3.1. | |
| What's New in Python 3.4.0 release candidate 2? | |
| =============================================== | |
| Release date: 2014-02-23 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #20625: Parameter names in __annotations__ were not mangled properly. | |
| Discovered by Jonas Wielicki, patch by Yury Selivanov. | |
| - Issue #20261: In pickle, lookup __getnewargs__ and __getnewargs_ex__ on the | |
| type of the object. | |
| - Issue #20619: Give the AST nodes of keyword-only arguments a column and line | |
| number. | |
| - Issue #20526: Revert changes of issue #19466 which introduces a regression: | |
| don't clear anymore the state of Python threads early during the Python | |
| shutdown. | |
| Library | |
| ------- | |
| - Issue #20710: The pydoc summary line no longer displays the "self" parameter | |
| for bound methods. | |
| - Issue #20566: Change asyncio.as_completed() to use a Queue, to | |
| avoid O(N**2) behavior. | |
| - Issue #20704: Implement new debug API in asyncio. Add new methods | |
| BaseEventLoop.set_debug() and BaseEventLoop.get_debug(). | |
| Add support for setting 'asyncio.tasks._DEBUG' variable with | |
| 'PYTHONASYNCIODEBUG' environment variable. | |
| - asyncio: Refactoring and fixes: BaseEventLoop.sock_connect() raises an | |
| error if the address is not resolved; use __slots__ in Handle and | |
| TimerHandle; as_completed() and wait() raise TypeError if the passed | |
| list of Futures is a single Future; call_soon() and other 'call_*()' | |
| functions raise TypeError if the passed callback is a coroutine | |
| function; _ProactorBasePipeTransport uses _FlowControlMixin; | |
| WriteTransport.set_write_buffer_size() calls _maybe_pause_protocol() | |
| to consider pausing receiving if the watermark limits have changed; | |
| fix _check_resolved_address() for IPv6 address; and other minor | |
| improvements, along with multiple documentation updates. | |
| - Issue #20684: Fix inspect.getfullargspec() to not to follow __wrapped__ | |
| chains. Make its behaviour consistent with bound methods first argument. | |
| Patch by Nick Coghlan and Yury Selivanov. | |
| - Issue #20681: Add new error handling API in asyncio. New APIs: | |
| loop.set_exception_handler(), loop.default_exception_handler(), and | |
| loop.call_exception_handler(). | |
| - Issue #20673: Implement support for UNIX Domain Sockets in asyncio. | |
| New APIs: loop.create_unix_connection(), loop.create_unix_server(), | |
| streams.open_unix_connection(), and streams.start_unix_server(). | |
| - Issue #20616: Add a format() method to tracemalloc.Traceback. | |
| - Issue #19744: the ensurepip installation step now just prints a warning to | |
| stderr rather than failing outright if SSL/TLS is unavailable. This allows | |
| local installation of POSIX builds without SSL/TLS support. | |
| - Issue #20594: Avoid name clash with the libc function posix_close. | |
| Build | |
| ----- | |
| - Issue #20641: Run MSI custom actions (pip installation, pyc compilation) | |
| with the NoImpersonate flag, to support elevated execution (UAC). | |
| - Issue #20221: Removed conflicting (or circular) hypot definition when | |
| compiled with VS 2010 or above. Initial patch by Tabrez Mohammed. | |
| - Issue #20609: Restored the ability to build 64-bit Windows binaries on | |
| 32-bit Windows, which was broken by the change in issue #19788. | |
| What's New in Python 3.4.0 release candidate 1? | |
| =============================================== | |
| Release date: 2014-02-10 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #19255: The builtins module is restored to initial value before | |
| cleaning other modules. The sys and builtins modules are cleaned last. | |
| - Issue #20588: Make Python-ast.c C89 compliant. | |
| - Issue #20437: Fixed 22 potential bugs when deleting objects references. | |
| - Issue #20500: Displaying an exception at interpreter shutdown no longer | |
| risks triggering an assertion failure in PyObject_Str. | |
| - Issue #20538: UTF-7 incremental decoder produced inconsistent string when | |
| input was truncated in BASE64 section. | |
| - Issue #20404: io.TextIOWrapper (and hence the open() builtin) now uses the | |
| internal codec marking system added for issue #19619 to throw LookupError | |
| for known non-text encodings at stream construction time. The existing | |
| output type checks remain in place to deal with unmarked third party | |
| codecs. | |
| - Issue #17162: Add PyType_GetSlot. | |
| - Issue #20162: Fix an alignment issue in the siphash24() hash function which | |
| caused a crash on PowerPC 64-bit (ppc64). | |
| Library | |
| ------- | |
| - Issue #20530: The signatures for slot builtins have been updated | |
| to reflect the fact that they only accept positional-only arguments. | |
| - Issue #20517: Functions in the os module that accept two filenames | |
| now register both filenames in the exception on failure. | |
| - Issue #20563: The ipaddress module API is now considered stable. | |
| - Issue #14983: email.generator now always adds a line end after each MIME | |
| boundary marker, instead of doing so only when there is an epilogue. This | |
| fixes an RFC compliance bug and solves an issue with signed MIME parts. | |
| - Issue #20540: Fix a performance regression (vs. Python 3.2) when layering | |
| a multiprocessing Connection over a TCP socket. For small payloads, Nagle's | |
| algorithm would introduce idle delays before the entire transmission of a | |
| message. | |
| - Issue #16983: the new email header parsing code will now decode encoded words | |
| that are (incorrectly) surrounded by quotes, and register a defect. | |
| - Issue #19772: email.generator no longer mutates the message object when | |
| doing a down-transform from 8bit to 7bit CTEs. | |
| - Issue #20536: the statistics module now correctly handle Decimal instances | |
| with positive exponents | |
| - Issue #18805: the netmask/hostmask parsing in ipaddress now more reliably | |
| filters out illegal values and correctly allows any valid prefix length. | |
| - Issue #20481: For at least Python 3.4, the statistics module will require | |
| that all inputs for a single operation be of a single consistent type, or | |
| else a mixed of ints and a single other consistent type. This avoids | |
| some interoperability issues that arose with the previous approach of | |
| coercing to a suitable common type. | |
| - Issue #20478: the statistics module now treats collections.Counter inputs | |
| like any other iterable. | |
| - Issue #17369: get_filename was raising an exception if the filename | |
| parameter's RFC2231 encoding was broken in certain ways. This was | |
| a regression relative to python2. | |
| - Issue #20013: Some imap servers disconnect if the current mailbox is | |
| deleted, and imaplib did not handle that case gracefully. Now it | |
| handles the 'bye' correctly. | |
| - Issue #20531: Revert 3.4 version of fix for #19063, and apply the 3.3 | |
| version. That is, do *not* raise an error if unicode is passed to | |
| email.message.Message.set_payload. | |
| - Issue #20476: If a non-compat32 policy is used with any of the email parsers, | |
| EmailMessage is now used as the factory class. The factory class should | |
| really come from the policy; that will get fixed in 3.5. | |
| - Issue #19920: TarFile.list() no longer fails when outputs a listing | |
| containing non-encodable characters. Based on patch by Vajrasky Kok. | |
| - Issue #20515: Fix NULL pointer dereference introduced by issue #20368. | |
| - Issue #19186: Restore namespacing of expat symbols inside the pyexpat module. | |
| - Issue #20053: ensurepip (and hence venv) are no longer affected by the | |
| settings in the default pip configuration file. | |
| - Issue #20426: When passing the re.DEBUG flag, re.compile() displays the | |
| debug output every time it is called, regardless of the compilation cache. | |
| - Issue #20368: The null character now correctly passed from Tcl to Python. | |
| Improved error handling in variables-related commands. | |
| - Issue #20435: Fix _pyio.StringIO.getvalue() to take into account newline | |
| translation settings. | |
| - tracemalloc: Fix slicing traces and fix slicing a traceback. | |
| - Issue #20354: Fix an alignment issue in the tracemalloc module on 64-bit | |
| platforms. Bug seen on 64-bit Linux when using "make profile-opt". | |
| - Issue #17159: inspect.signature now accepts duck types of functions, | |
| which adds support for Cython functions. Initial patch by Stefan Behnel. | |
| - Issue #18801: Fix inspect.classify_class_attrs to correctly classify | |
| object.__new__ and object.__init__. | |
| - Fixed cmath.isinf's name in its argument parsing code. | |
| - Issue #20311, #20452: poll and epoll now round the timeout away from zero, | |
| instead of rounding towards zero, in select and selectors modules: | |
| select.epoll.poll(), selectors.PollSelector.poll() and | |
| selectors.EpollSelector.poll(). For example, a timeout of one microsecond | |
| (1e-6) is now rounded to one millisecondi (1e-3), instead of being rounded to | |
| zero. However, the granularity property and asyncio's resolution feature | |
| were removed again. | |
| - asyncio: Some refactoring; various fixes; add write flow control to | |
| unix pipes; Future.set_exception() instantiates the exception | |
| argument if it is a class; improved proactor pipe transport; support | |
| wait_for(f, None); don't log broken/disconnected pipes; use | |
| ValueError instead of assert for forbidden subprocess_{shell,exec} | |
| arguments; added a convenience API for subprocess management; added | |
| StreamReader.at_eof(); properly handle duplicate coroutines/futures | |
| in gather(), wait(), as_completed(); use a bytearray for buffering | |
| in StreamReader; and more. | |
| - Issue #20288: fix handling of invalid numeric charrefs in HTMLParser. | |
| - Issue #20424: Python implementation of io.StringIO now supports lone surrogates. | |
| - Issue #20308: inspect.signature now works on classes without user-defined | |
| __init__ or __new__ methods. | |
| - Issue #20372: inspect.getfile (and a bunch of other inspect functions that | |
| use it) doesn't crash with unexpected AttributeError on classes defined in C | |
| without __module__. | |
| - Issue #20356: inspect.signature formatting uses '/' to separate | |
| positional-only parameters from others. | |
| - Issue #20223: inspect.signature now supports methods defined with | |
| functools.partialmethods. | |
| - Issue #19456: ntpath.join() now joins relative paths correctly when a drive | |
| is present. | |
| - Issue #19077: tempfile.TemporaryDirectory cleanup no longer fails when | |
| called during shutdown. Emitting resource warning in __del__ no longer fails. | |
| Original patch by Antoine Pitrou. | |
| - Issue #20394: Silence Coverity warning in audioop module. | |
| - Issue #20367: Fix behavior of concurrent.futures.as_completed() for | |
| duplicate arguments. Patch by Glenn Langford. | |
| - Issue #8260: The read(), readline() and readlines() methods of | |
| codecs.StreamReader returned incomplete data when were called after | |
| readline() or read(size). Based on patch by Amaury Forgeot d'Arc. | |
| - Issue #20105: the codec exception chaining now correctly sets the | |
| traceback of the original exception as its __traceback__ attribute. | |
| - Issue #17481: inspect.getfullargspec() now uses inspect.signature() API. | |
| - Issue #15304: concurrent.futures.wait() can block forever even if | |
| Futures have completed. Patch by Glenn Langford. | |
| - Issue #14455: plistlib: fix serializing integers in the range | |
| of an unsigned long long but outside of the range of signed long long for | |
| binary plist files. | |
| IDLE | |
| ---- | |
| - Issue #20406: Use Python application icons for Idle window title bars. | |
| Patch mostly by Serhiy Storchaka. | |
| - Update the python.gif icon for the Idle classbrowser and pathbowser | |
| from the old green snake to the new blue and yellow snakes. | |
| - Issue #17721: Remove non-functional configuration dialog help button until we | |
| make it actually gives some help when clicked. Patch by Guilherme Simões. | |
| Tests | |
| ----- | |
| - Issue #20532: Tests which use _testcapi now are marked as CPython only. | |
| - Issue #19920: Added tests for TarFile.list(). Based on patch by Vajrasky Kok. | |
| - Issue #19990: Added tests for the imghdr module. Based on patch by | |
| Claudiu Popa. | |
| - Issue #20474: Fix test_socket "unexpected success" failures on OS X 10.7+. | |
| Tools/Demos | |
| ----------- | |
| - Issue #20530: Argument Clinic's signature format has been revised again. | |
| The new syntax is highly human readable while still preventing false | |
| positives. The syntax also extends Python syntax to denote "self" and | |
| positional-only parameters, allowing inspect.Signature objects to be | |
| totally accurate for all supported builtins in Python 3.4. | |
| - Issue #20456: Argument Clinic now observes the C preprocessor conditional | |
| compilation statements of the C files it parses. When a Clinic block is | |
| inside a conditional code, it adjusts its output to match, including | |
| automatically generating an empty methoddef macro. | |
| - Issue #20456: Cloned functions in Argument Clinic now use the correct | |
| name, not the name of the function they were cloned from, for text | |
| strings inside generated code. | |
| - Issue #20456: Fixed Argument Clinic's test suite and "--converters" feature. | |
| - Issue #20456: Argument Clinic now allows specifying different names | |
| for a parameter in Python and C, using "as" on the parameter line. | |
| - Issue #20326: Argument Clinic now uses a simple, unique signature to | |
| annotate text signatures in docstrings, resulting in fewer false | |
| positives. "self" parameters are also explicitly marked, allowing | |
| inspect.Signature() to authoritatively detect (and skip) said parameters. | |
| - Issue #20326: Argument Clinic now generates separate checksums for the | |
| input and output sections of the block, allowing external tools to verify | |
| that the input has not changed (and thus the output is not out-of-date). | |
| Build | |
| ----- | |
| - Issue #20465: Update SQLite shipped with OS X installer to 3.8.3. | |
| C-API | |
| ----- | |
| - Issue #20517: Added new functions allowing OSError exceptions to reference | |
| two filenames instead of one: PyErr_SetFromErrnoWithFilenameObjects() and | |
| PyErr_SetExcFromWindowsErrWithFilenameObjects(). | |
| Documentation | |
| ------------- | |
| - Issue #20488: Change wording to say importlib is *the* implementation of | |
| import instead of just *an* implementation. | |
| - Issue #6386: Clarify in the tutorial that specifying a symlink to execute | |
| means the directory containing the executed script and not the symlink is | |
| added to sys.path. | |
| What's New in Python 3.4.0 Beta 3? | |
| ================================== | |
| Release date: 2014-01-26 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #20189: Four additional builtin types (PyTypeObject, | |
| PyMethodDescr_Type, _PyMethodWrapper_Type, and PyWrapperDescr_Type) | |
| have been modified to provide introspection information for builtins. | |
| - Issue #17825: Cursor "^" is correctly positioned for SyntaxError and | |
| IndentationError. | |
| - Issue #2382: SyntaxError cursor "^" is now written at correct position in most | |
| cases when multibyte characters are in line (before "^"). This still not | |
| works correctly with wide East Asian characters. | |
| - Issue #18960: The first line of Python script could be executed twice when | |
| the source encoding was specified on the second line. Now the source encoding | |
| declaration on the second line isn't effective if the first line contains | |
| anything except a comment. 'python -x' works now again with files with the | |
| source encoding declarations, and can be used to make Python batch files | |
| on Windows. | |
| Library | |
| ------- | |
| - asyncio: Various improvements and small changes not all covered by | |
| issues listed below. E.g. wait_for() now cancels the inner task if | |
| the timeout occurs; tweaked the set of exported symbols; renamed | |
| Empty/Full to QueueEmpty/QueueFull; "with (yield from lock)" now | |
| uses a separate context manager; readexactly() raises if not enough | |
| data was read; PTY support tweaks. | |
| - Issue #20311: asyncio: Add a granularity attribute to BaseEventLoop: maximum | |
| between the resolution of the BaseEventLoop.time() method and the resolution | |
| of the selector. The granuarility is used in the scheduler to round time and | |
| deadline. | |
| - Issue #20311: selectors: Add a resolution attribute to BaseSelector. | |
| - Issue #20189: unittest.mock now no longer assumes that any object for | |
| which it could get an inspect.Signature is a callable written in Python. | |
| Fix courtesy of Michael Foord. | |
| - Issue #20317: ExitStack.__exit__ could create a self-referential loop if an | |
| exception raised by a cleanup operation already had its context set | |
| correctly (for example, by the @contextmanager decorator). The infinite | |
| loop this caused is now avoided by checking if the expected context is | |
| already set before trying to fix it. | |
| - Issue #20374: Fix build with GNU readline >= 6.3. | |
| - Issue #20262: Warnings are raised now when duplicate names are added in the | |
| ZIP file or too long ZIP file comment is truncated. | |
| - Issue #20165: The unittest module no longer considers tests marked with | |
| @expectedFailure successful if they pass. | |
| - Issue #18574: Added missing newline in 100-Continue reply from | |
| http.server.BaseHTTPRequestHandler. Patch by Nikolaus Rath. | |
| - Issue #20270: urllib.urlparse now supports empty ports. | |
| - Issue #20243: TarFile no longer raise ReadError when opened in write mode. | |
| - Issue #20238: TarFile opened with external fileobj and "w:gz" mode didn't | |
| write complete output on close. | |
| - Issue #20245: The open functions in the tarfile module now correctly handle | |
| empty mode. | |
| - Issue #20242: Fixed basicConfig() format strings for the alternative | |
| formatting styles. Thanks to kespindler for the bug report and patch. | |
| - Issue #20246: Fix buffer overflow in socket.recvfrom_into. | |
| - Issues #20206 and #5803: Fix edge case in email.quoprimime.encode where it | |
| truncated lines ending in a character needing encoding but no newline by | |
| using a more efficient algorithm that doesn't have the bug. | |
| - Issue #19082: Working xmlrpc.server and xmlrpc.client examples. Both in | |
| modules and in documentation. Initial patch contributed by Vajrasky Kok. | |
| - Issue #20138: The wsgiref.application_uri() and wsgiref.request_uri() | |
| functions now conform to PEP 3333 when handle non-ASCII URLs. | |
| - Issue #19097: Raise the correct Exception when cgi.FieldStorage is given an | |
| invalid fileobj. | |
| - Issue #20152: Ported Python/import.c over to Argument Clinic. | |
| - Issue #13107: argparse and optparse no longer raises an exception when output | |
| a help on environment with too small COLUMNS. Based on patch by | |
| Elazar Gershuni. | |
| - Issue #20207: Always disable SSLv2 except when PROTOCOL_SSLv2 is explicitly | |
| asked for. | |
| - Issue #18960: The tokenize module now ignore the source encoding declaration | |
| on the second line if the first line contains anything except a comment. | |
| - Issue #20078: Reading malformed zipfiles no longer hangs with 100% CPU | |
| consumption. | |
| - Issue #20113: os.readv() and os.writev() now raise an OSError exception on | |
| error instead of returning -1. | |
| - Issue #19719: Make importlib.abc.MetaPathFinder.find_module(), | |
| PathEntryFinder.find_loader(), and Loader.load_module() use PEP 451 APIs to | |
| help with backwards-compatibility. | |
| - Issue #20144: inspect.Signature now supports parsing simple symbolic | |
| constants as parameter default values in __text_signature__. | |
| - Issue #20072: Fixed multiple errors in tkinter with wantobjects is False. | |
| - Issue #20229: Avoid plistlib deprecation warning in platform.mac_ver(). | |
| - Issue #14455: Fix some problems with the new binary plist support in plistlib. | |
| IDLE | |
| ---- | |
| - Issue #17390: Add Python version to Idle editor window title bar. | |
| Original patches by Edmond Burnett and Kent Johnson. | |
| - Issue #18960: IDLE now ignores the source encoding declaration on the second | |
| line if the first line contains anything except a comment. | |
| Tests | |
| ----- | |
| - Issue #20358: Tests for curses.window.overlay and curses.window.overwrite | |
| no longer specify min{row,col} > max{row,col}. | |
| - Issue #19804: The test_find_mac test in test_uuid is now skipped if the | |
| ifconfig executable is not available. | |
| - Issue #19886: Use better estimated memory requirements for bigmem tests. | |
| Tools/Demos | |
| ----------- | |
| - Issue #20390: Argument Clinic's "file" output preset now defaults to | |
| "{dirname}/clinic/{basename}.h". | |
| - Issue #20390: Argument Clinic's "class" directive syntax has been extended | |
| with two new required arguments: "typedef" and "type_object". | |
| - Issue #20390: Argument Clinic: If __new__ or __init__ functions didn't use | |
| kwargs (or args), the PyArg_NoKeywords (or PyArg_NoPositional) calls | |
| generated are only run when the type object is an exact match. | |
| - Issue #20390: Argument Clinic now fails if you have required parameters after | |
| optional parameters. | |
| - Issue #20390: Argument Clinic converters now have a new template they can | |
| inject code into: "modifiers". Code put there is run in the parsing | |
| function after argument parsing but before the call to the impl. | |
| - Issue #20376: Argument Clinic now escapes backslashes in docstrings. | |
| - Issue #20381: Argument Clinic now sanity checks the default argument when | |
| c_default is also specified, providing a nice failure message for | |
| disallowed values. | |
| - Issue #20189: Argument Clinic now ensures that parser functions for | |
| __new__ are always of type newfunc, the type of the tp_new slot. | |
| Similarly, parser functions for __init__ are now always of type initproc, | |
| the type of tp_init. | |
| - Issue #20189: Argument Clinic now suppresses the docstring for __new__ | |
| and __init__ functions if no docstring is provided in the input. | |
| - Issue #20189: Argument Clinic now suppresses the "self" parameter in the | |
| impl for @staticmethod functions. | |
| - Issue #20294: Argument Clinic now supports argument parsing for __new__ and | |
| __init__ functions. | |
| - Issue #20299: Argument Clinic custom converters may now change the default | |
| value of c_default and py_default with a class member. | |
| - Issue #20287: Argument Clinic's output is now configurable, allowing | |
| delaying its output or even redirecting it to a separate file. | |
| - Issue #20226: Argument Clinic now permits simple expressions | |
| (e.g. "sys.maxsize - 1") as default values for parameters. | |
| - Issue #19936: Added executable bits or shebang lines to Python scripts which | |
| requires them. Disable executable bits and shebang lines in test and | |
| benchmark files in order to prevent using a random system python, and in | |
| source files of modules which don't provide command line interface. Fixed | |
| shebang lines in the unittestgui and checkpip scripts. | |
| - Issue #20268: Argument Clinic now supports cloning the parameters and | |
| return converter of existing functions. | |
| - Issue #20228: Argument Clinic now has special support for class special | |
| methods. | |
| - Issue #20214: Fixed a number of small issues and documentation errors in | |
| Argument Clinic (see issue for details). | |
| - Issue #20196: Fixed a bug where Argument Clinic did not generate correct | |
| parsing code for functions with positional-only parameters where all arguments | |
| are optional. | |
| - Issue #18960: 2to3 and the findnocoding.py script now ignore the source | |
| encoding declaration on the second line if the first line contains anything | |
| except a comment. | |
| - Issue #19723: The marker comments Argument Clinic uses have been changed | |
| to improve readability. | |
| - Issue #20157: When Argument Clinic renames a parameter because its name | |
| collides with a C keyword, it no longer exposes that rename to PyArg_Parse. | |
| - Issue #20141: Improved Argument Clinic's support for the PyArg_Parse "O!" | |
| format unit. | |
| - Issue #20144: Argument Clinic now supports simple symbolic constants | |
| as parameter default values. | |
| - Issue #20143: The line numbers reported in Argument Clinic errors are | |
| now more accurate. | |
| - Issue #20142: Py_buffer variables generated by Argument Clinic are now | |
| initialized with a default value. | |
| Build | |
| ----- | |
| - Issue #12837: Silence a tautological comparison warning on OS X under Clang in | |
| socketmodule.c. | |
| What's New in Python 3.4.0 Beta 2? | |
| ================================== | |
| Release date: 2014-01-05 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #17432: Drop UCS2 from names of Unicode functions in python3.def. | |
| - Issue #19526: Exclude all new API from the stable ABI. Exceptions can be | |
| made if a need is demonstrated. | |
| - Issue #19969: PyBytes_FromFormatV() now raises an OverflowError if "%c" | |
| argument is not in range [0; 255]. | |
| - Issue #19995: %c, %o, %x, and %X now issue a DeprecationWarning on non-integer | |
| input; reworded docs to clarify that an integer type should define both __int__ | |
| and __index__. | |
| - Issue #19787: PyThread_set_key_value() now always set the value. In Python | |
| 3.3, the function did nothing if the key already exists (if the current value | |
| is a non-NULL pointer). | |
| - Issue #14432: Remove the thread state field from the frame structure. Fix a | |
| crash when a generator is created in a C thread that is destroyed while the | |
| generator is still used. The issue was that a generator contains a frame, and | |
| the frame kept a reference to the Python state of the destroyed C thread. The | |
| crash occurs when a trace function is setup. | |
| - Issue #19576: PyGILState_Ensure() now initializes threads. At startup, Python | |
| has no concrete GIL. If PyGILState_Ensure() is called from a new thread for | |
| the first time and PyEval_InitThreads() was not called yet, a GIL needs to be | |
| created. | |
| - Issue #17576: Deprecation warning emitted now when __int__() or __index__() | |
| return not int instance. | |
| - Issue #19932: Fix typo in import.h, missing whitespaces in function prototypes. | |
| - Issue #19736: Add module-level statvfs constants defined for GNU/glibc | |
| based systems. | |
| - Issue #20097: Fix bad use of "self" in importlib's WindowsRegistryFinder. | |
| - Issue #19729: In str.format(), fix recursive expansion in format spec. | |
| - Issue #19638: Fix possible crash / undefined behaviour from huge (more than 2 | |
| billion characters) input strings in _Py_dg_strtod. | |
| Library | |
| ------- | |
| - Issue #20154: Deadlock in asyncio.StreamReader.readexactly(). | |
| - Issue #16113: Remove sha3 module again. | |
| - Issue #20111: pathlib.Path.with_suffix() now sanity checks the given suffix. | |
| - Fix breakage in TestSuite.countTestCases() introduced by issue #11798. | |
| - Issue #20108: Avoid parameter name clash in inspect.getcallargs(). | |
| - Issue #19918: Fix PurePath.relative_to() under Windows. | |
| - Issue #19422: Explicitly disallow non-SOCK_STREAM sockets in the ssl | |
| module, rather than silently let them emit clear text data. | |
| - Issue #20046: Locale alias table no longer contains entities which can be | |
| calculated. Generalized support of the euro modifier. | |
| - Issue #20027: Fixed locale aliases for devanagari locales. | |
| - Issue #20067: Tkinter variables now work when wantobjects is false. | |
| - Issue #19020: Tkinter now uses splitlist() instead of split() in configure | |
| methods. | |
| - Issue #19744: ensurepip now provides a better error message when Python is | |
| built without SSL/TLS support (pip currently requires that support to run, | |
| even if only operating with local wheel files) | |
| - Issue #19734: ensurepip now ignores all pip environment variables to avoid | |
| odd behaviour based on user configuration settings | |
| - Fix TypeError on "setup.py upload --show-response". | |
| - Issue #20045: Fix "setup.py register --list-classifiers". | |
| - Issue #18879: When a method is looked up on a temporary file, avoid closing | |
| the file before the method is possibly called. | |
| - Issue #20037: Avoid crashes when opening a text file late at interpreter | |
| shutdown. | |
| - Issue #19967: Thanks to the PEP 442, asyncio.Future now uses a | |
| destructor to log uncaught exceptions, instead of the dedicated | |
| _TracebackLogger class. | |
| - Added a Task.current_task() class method to asyncio. | |
| - Issue #19850: Set SA_RESTART in asyncio when registering a signal | |
| handler to limit EINTR occurrences. | |
| - Implemented write flow control in asyncio for proactor event loop (Windows). | |
| - Change write buffer in asyncio use to avoid O(N**2) behavior. Make | |
| write()/sendto() accept bytearray/memoryview. | |
| - Issue #20034: Updated alias mapping to most recent locale.alias file | |
| from X.org distribution using makelocalealias.py. | |
| - Issue #5815: Fixed support for locales with modifiers. Fixed support for | |
| locale encodings with hyphens. | |
| - Issue #20026: Fix the sqlite module to handle correctly invalid isolation | |
| level (wrong type). | |
| - Issue #18829: csv.Dialect() now checks type for delimiter, escapechar and | |
| quotechar fields. Original patch by Vajrasky Kok. | |
| - Issue #19855: uuid.getnode() on Unix now looks on the PATH for the | |
| executables used to find the mac address, with /sbin and /usr/sbin as | |
| fallbacks. | |
| - Issue #20007: HTTPResponse.read(0) no more prematurely closes connection. | |
| Original patch by Simon Sapin. | |
| - Issue #19946: multiprocessing now uses runpy to initialize __main__ in | |
| child processes when necessary, allowing it to correctly handle scripts | |
| without suffixes and submodules that use explicit relative imports or | |
| otherwise rely on parent modules being correctly imported prior to | |
| execution. | |
| - Issue #19921: When Path.mkdir() is called with parents=True, any missing | |
| parent is created with the default permissions, ignoring the mode argument | |
| (mimicking the POSIX "mkdir -p" command). | |
| - Issue #19887: Improve the Path.resolve() algorithm to support certain | |
| symlink chains. | |
| - Issue #19912: Fixed numerous bugs in ntpath.splitunc(). | |
| - Issue #19911: ntpath.splitdrive() now correctly processes the 'İ' character | |
| (U+0130, LATIN CAPITAL LETTER I WITH DOT ABOVE). | |
| - Issue #19532: python -m compileall with no filename/directory arguments now | |
| respects the -f and -q flags instead of ignoring them. | |
| - Issue #19623: Fixed writing to unseekable files in the aifc module. | |
| - Issue #19946: multiprocessing.spawn now raises ImportError when the module to | |
| be used as the main module cannot be imported. | |
| - Issue #17919: select.poll.register() again works with poll.POLLNVAL on AIX. | |
| Fixed integer overflow in the eventmask parameter. | |
| - Issue #19063: if a Charset's body_encoding was set to None, the email | |
| package would generate a message claiming the Content-Transfer-Encoding | |
| was 7bit, and produce garbage output for the content. This now works. | |
| A couple of other set_payload mishandlings of non-ASCII are also fixed. | |
| In addition, calling set_payload with a string argument without | |
| specifying a charset now raises an error (this is a new error in 3.4). | |
| - Issue #15475: Add __sizeof__ implementations for itertools objects. | |
| - Issue #19944: Fix importlib.find_spec() so it imports parents as needed | |
| and move the function to importlib.util. | |
| - Issue #19880: Fix a reference leak in unittest.TestCase. Explicitly break | |
| reference cycles between frames and the _Outcome instance. | |
| - Issue #17429: platform.linux_distribution() now decodes files from the UTF-8 | |
| encoding with the surrogateescape error handler, instead of decoding from the | |
| locale encoding in strict mode. It fixes the function on Fedora 19 which is | |
| probably the first major distribution release with a non-ASCII name. Patch | |
| written by Toshio Kuratomi. | |
| - Issue #19343: Expose FreeBSD-specific APIs in resource module. Original | |
| patch by Koobs. | |
| - Issue #19929: Call os.read with 32768 within subprocess.Popen.communicate | |
| rather than 4096 for efficiency. A microbenchmark shows Linux and OS X | |
| both using ~50% less cpu time this way. | |
| - Issue #19506: Use a memoryview to avoid a data copy when piping data | |
| to stdin within subprocess.Popen.communicate. 5-10% less cpu usage. | |
| - Issue #19876: selectors unregister() no longer raises ValueError or OSError | |
| if the FD is closed (as long as it was registered). | |
| - Issue #19908: pathlib now joins relative Windows paths correctly when a drive | |
| is present. Original patch by Antoine Pitrou. | |
| - Issue #19296: Silence compiler warning in dbm_open | |
| - Issue #6784: Strings from Python 2 can now be unpickled as bytes | |
| objects by setting the encoding argument of Unpickler to be 'bytes'. | |
| Initial patch by Merlijn van Deen. | |
| - Issue #19839: Fix regression in bz2 module's handling of non-bzip2 data at | |
| EOF, and analogous bug in lzma module. | |
| - Issue #19881: Fix pickling bug where cpickle would emit bad pickle data for | |
| large bytes string (i.e., with size greater than 2**32-1). | |
| - Issue #19138: doctest's IGNORE_EXCEPTION_DETAIL now allows a match when | |
| no exception detail exists (no colon following the exception's name, or | |
| a colon does follow but no text follows the colon). | |
| - Issue #19927: Add __eq__ to path-based loaders in importlib. | |
| - Issue #19827: On UNIX, setblocking() and settimeout() methods of | |
| socket.socket can now avoid a second syscall if the ioctl() function can be | |
| used, or if the non-blocking flag of the socket is unchanged. | |
| - Issue #19785: smtplib now supports SSLContext.check_hostname and server name | |
| indication for TLS/SSL connections. | |
| - Issue #19784: poplib now supports SSLContext.check_hostname and server name | |
| indication for TLS/SSL connections. | |
| - Issue #19783: nntplib now supports SSLContext.check_hostname and server name | |
| indication for TLS/SSL connections. | |
| - Issue #19782: imaplib now supports SSLContext.check_hostname and server name | |
| indication for TLS/SSL connections. | |
| - Issue #20123: Fix pydoc.synopsis() for "binary" modules. | |
| - Issue #19834: Support unpickling of exceptions pickled by Python 2. | |
| - Issue #19781: ftplib now supports SSLContext.check_hostname and server name | |
| indication for TLS/SSL connections. | |
| - Issue #19509: Add SSLContext.check_hostname to match the peer's certificate | |
| with server_hostname on handshake. | |
| - Issue #15798: Fixed subprocess.Popen() to no longer fail if file | |
| descriptor 0, 1 or 2 is closed. | |
| - Issue #17897: Optimized unpickle prefetching. | |
| - Issue #3693: Make the error message more helpful when the array.array() | |
| constructor is given a str. Move the array module typecode documentation to | |
| the docstring of the constructor. | |
| - Issue #19088: Fixed incorrect caching of the copyreg module in | |
| object.__reduce__() and object.__reduce_ex__(). | |
| - Issue #19698: Removed exec_module() methods from | |
| importlib.machinery.BuiltinImporter and ExtensionFileLoader. | |
| - Issue #18864: Added a setter for ModuleSpec.has_location. | |
| - Fixed _pickle.Unpickler to not fail when loading empty strings as | |
| persistent IDs. | |
| - Issue #11480: Fixed copy.copy to work with classes with custom metaclasses. | |
| Patch by Daniel Urban. | |
| - Issue #6477: Added support for pickling the types of built-in singletons | |
| (i.e., Ellipsis, NotImplemented, None). | |
| - Issue #19713: Add remaining PEP 451-related deprecations and move away | |
| from using find_module/find_loaer/load_module. | |
| - Issue #19708: Update pkgutil to use the new importer APIs. | |
| - Issue #19703: Update pydoc to use the new importer APIs. | |
| - Issue #19851: Fixed a regression in reloading sub-modules. | |
| - ssl.create_default_context() sets OP_NO_COMPRESSION to prevent CRIME. | |
| - Issue #19802: Add socket.SO_PRIORITY. | |
| - Issue #11508: Fixed uuid.getnode() and uuid.uuid1() on environment with | |
| virtual interface. Original patch by Kent Frazier. | |
| - Issue #11489: JSON decoder now accepts lone surrogates. | |
| - Issue #19545: Avoid chained exceptions while passing stray % to | |
| time.strptime(). Initial patch by Claudiu Popa. | |
| IDLE | |
| ---- | |
| - Issue #20058: sys.stdin.readline() in IDLE now always returns only one line. | |
| - Issue #19481: print() of string subclass instance in IDLE no longer hangs. | |
| - Issue #18270: Prevent possible IDLE AttributeError on OS X when no initial | |
| shell window is present. | |
| Tests | |
| ----- | |
| - Issue #20055: Fix test_shutil under Windows with symlink privileges held. | |
| Patch by Vajrasky Kok. | |
| - Issue #20070: Don't run test_urllib2net when network resources are not | |
| enabled. | |
| - Issue #19938: Re-enabled test_bug_1333982 in test_dis, which had been | |
| disabled since 3.0 due to the changes in listcomp handling. | |
| - Issue #19320: test_tcl no longer fails when wantobjects is false. | |
| - Issue #19919: Fix flaky SSL test. connect_ex() sometimes returns | |
| EWOULDBLOCK on Windows or VMs hosted on Windows. | |
| - Issue #19912: Added tests for ntpath.splitunc(). | |
| - Issue #19828: Fixed test_site when the whole suite is run with -S. | |
| - Issue #19928: Implemented a test for repr() of cell objects. | |
| - Issue #19535: Fixed test_docxmlrpc, test_functools, test_inspect, and | |
| test_statistics when python is run with -OO. | |
| - Issue #19926: Removed unneeded test_main from test_abstract_numbers. | |
| Patch by Vajrasky Kok. | |
| - Issue #19572: More skipped tests explicitly marked as skipped. | |
| - Issue #19595, #19987: Re-enabled a long-disabled test in test_winsound. | |
| - Issue #19588: Fixed tests in test_random that were silently skipped most | |
| of the time. Patch by Julian Gindi. | |
| Build | |
| ----- | |
| - Issue #19728: Enable pip installation by default on Windows. | |
| - Issue #16136: Remove VMS support | |
| - Issue #18215: Add script Tools/ssl/test_multiple_versions.py to compile and | |
| run Python's unit tests with multiple versions of OpenSSL. | |
| - Issue #19922: define _INCLUDE__STDC_A1_SOURCE in HP-UX to include mbstate_t | |
| for mbrtowc(). | |
| - Issue #19788: kill_python(_d).exe is now run as a PreBuildEvent on the | |
| pythoncore sub-project. This should prevent build errors due a previous | |
| build's python(_d).exe still running. | |
| Documentation | |
| ------------- | |
| - Issue #20265: Updated some parts of the Using Windows document. | |
| - Issue #20266: Updated some parts of the Windows FAQ. | |
| - Issue #20255: Updated the about and bugs pages. | |
| - Issue #20253: Fixed a typo in the ipaddress docs that advertised an | |
| illegal attribute name. Found by INADA Naoki. | |
| - Issue #18840: Introduce the json module in the tutorial, and de-emphasize | |
| the pickle module. | |
| - Issue #19845: Updated the Compiling Python on Windows section. | |
| - Issue #19795: Improved markup of True/False constants. | |
| Tools/Demos | |
| ----------- | |
| - Issue #19659: Added documentation for Argument Clinic. | |
| - Issue #19976: Argument Clinic METH_NOARGS functions now always | |
| take two parameters. | |
| What's New in Python 3.4.0 Beta 1? | |
| ================================== | |
| Release date: 2013-11-24 | |
| Core and Builtins | |
| ----------------- | |
| - Use the repr of a module name in more places in import, especially | |
| exceptions. | |
| - Issue #19619: str.encode, bytes.decode and bytearray.decode now use an | |
| internal API to throw LookupError for known non-text encodings, rather | |
| than attempting the encoding or decoding operation and then throwing a | |
| TypeError for an unexpected output type. (The latter mechanism remains | |
| in place for third party non-text encodings) | |
| - Issue #19183: Implement PEP 456 'secure and interchangeable hash algorithm'. | |
| Python now uses SipHash24 on all major platforms. | |
| - Issue #12892: The utf-16* and utf-32* encoders no longer allow surrogate code | |
| points (U+D800-U+DFFF) to be encoded. The utf-32* decoders no longer decode | |
| byte sequences that correspond to surrogate code points. The surrogatepass | |
| error handler now works with the utf-16* and utf-32* codecs. Based on | |
| patches by Victor Stinner and Kang-Hao (Kenny) Lu. | |
| - Issue #17806: Added keyword-argument support for "tabsize" to | |
| str/bytes.expandtabs(). | |
| - Issue #17828: Output type errors in str.encode(), bytes.decode() and | |
| bytearray.decode() now direct users to codecs.encode() or codecs.decode() | |
| as appropriate. | |
| - Issue #17828: The interpreter now attempts to chain errors that occur in | |
| codec processing with a replacement exception of the same type that | |
| includes the codec name in the error message. It ensures it only does this | |
| when the creation of the replacement exception won't lose any information. | |
| - Issue #19466: Clear the frames of daemon threads earlier during the | |
| Python shutdown to call objects destructors. So "unclosed file" resource | |
| warnings are now correctly emitted for daemon threads. | |
| - Issue #19514: Deduplicate some _Py_IDENTIFIER declarations. | |
| Patch by Andrei Dorian Duma. | |
| - Issue #17936: Fix O(n**2) behaviour when adding or removing many subclasses | |
| of a given type. | |
| - Issue #19428: zipimport now handles errors when reading truncated or invalid | |
| ZIP archive. | |
| - Issue #18408: Add a new PyFrame_FastToLocalsWithError() function to handle | |
| exceptions when merging fast locals into f_locals of a frame. | |
| PyEval_GetLocals() now raises an exception and return NULL on failure. | |
| - Issue #19369: Optimized the usage of __length_hint__(). | |
| - Issue #18603: Ensure that PyOS_mystricmp and PyOS_mystrnicmp are in the | |
| Python executable and not removed by the linker's optimizer. | |
| - Issue #19306: Add extra hints to the faulthandler module's stack | |
| dumps that these are "upside down". | |
| Library | |
| ------- | |
| - Issue #3158: doctest can now find doctests in functions and methods | |
| written in C. | |
| - Issue #13477: Added command line interface to the tarfile module. | |
| Original patch by Berker Peksag. | |
| - Issue #19674: inspect.signature() now produces a correct signature | |
| for some builtins. | |
| - Issue #19722: Added opcode.stack_effect(), which | |
| computes the stack effect of bytecode instructions. | |
| - Issue #19735: Implement private function ssl._create_stdlib_context() to | |
| create SSLContext objects in Python's stdlib module. It provides a single | |
| configuration point and makes use of SSLContext.load_default_certs(). | |
| - Issue #16203: Add re.fullmatch() function and regex.fullmatch() method, | |
| which anchor the pattern at both ends of the string to match. | |
| Original patch by Matthew Barnett. | |
| - Issue #13592: Improved the repr for regular expression pattern objects. | |
| Based on patch by Hugo Lopes Tavares. | |
| - Issue #19641: Added the audioop.byteswap() function to convert big-endian | |
| samples to little-endian and vice versa. | |
| - Issue #15204: Deprecated the 'U' mode in file-like objects. | |
| - Issue #17810: Implement PEP 3154, pickle protocol 4. | |
| - Issue #19668: Added support for the cp1125 encoding. | |
| - Issue #19689: Add ssl.create_default_context() factory function. It creates | |
| a new SSLContext object with secure default settings. | |
| - Issue #19727: os.utime(..., None) is now potentially more precise | |
| under Windows. | |
| - Issue #17201: ZIP64 extensions now are enabled by default. Patch by | |
| William Mallard. | |
| - Issue #19292: Add SSLContext.load_default_certs() to load default root CA | |
| certificates from default stores or system stores. By default the method | |
| loads CA certs for authentication of server certs. | |
| - Issue #19673: Add pathlib to the stdlib as a provisional module (PEP 428). | |
| - Issue #16596: pdb in a generator now properly skips over yield and | |
| yield from rather than stepping out of the generator into its | |
| caller. (This is essential for stepping through asyncio coroutines.) | |
| - Issue #17916: Added dis.Bytecode.from_traceback() and | |
| dis.Bytecode.current_offset to easily display "current instruction" | |
| markers in the new disassembly API (Patch by Claudiu Popa). | |
| - Issue #19552: venv now supports bootstrapping pip into virtual environments | |
| - Issue #17134: Finalize interface to Windows' certificate store. Cert and | |
| CRL enumeration are now two functions. enum_certificates() also returns | |
| purpose flags as set of OIDs. | |
| - Issue #19555: Restore sysconfig.get_config_var('SO'), (and the distutils | |
| equivalent) with a DeprecationWarning pointing people at $EXT_SUFFIX. | |
| - Issue #8813: Add SSLContext.verify_flags to change the verification flags | |
| of the context in order to enable certification revocation list (CRL) | |
| checks or strict X509 rules. | |
| - Issue #18294: Fix the zlib module to make it 64-bit safe. | |
| - Issue #19682: Fix compatibility issue with old version of OpenSSL that | |
| was introduced by Issue #18379. | |
| - Issue #14455: plistlib now supports binary plists and has an updated API. | |
| - Issue #19633: Fixed writing not compressed 16- and 32-bit wave files on | |
| big-endian platforms. | |
| - Issue #18379: SSLSocket.getpeercert() returns CA issuer AIA fields, OCSP | |
| and CRL distribution points. | |
| - Issue #18138: Implement cadata argument of SSLContext.load_verify_location() | |
| to load CA certificates and CRL from memory. It supports PEM and DER | |
| encoded strings. | |
| - Issue #18775: Add name and block_size attribute to HMAC object. They now | |
| provide the same API elements as non-keyed cryptographic hash functions. | |
| - Issue #17276: MD5 as default digestmod for HMAC is deprecated. The HMAC | |
| module supports digestmod names, e.g. hmac.HMAC('sha1'). | |
| - Issue #19449: in csv's writerow, handle non-string keys when generating the | |
| error message that certain keys are not in the 'fieldnames' list. | |
| - Issue #13633: Added a new convert_charrefs keyword arg to HTMLParser that, | |
| when True, automatically converts all character references. | |
| - Issue #2927: Added the unescape() function to the html module. | |
| - Issue #8402: Added the escape() function to the glob module. | |
| - Issue #17618: Add Base85 and Ascii85 encoding/decoding to the base64 module. | |
| - Issue #19634: time.strftime("%y") now raises a ValueError on AIX when given a | |
| year before 1900. | |
| - Fix test.support.bind_port() to not cause an error when Python was compiled | |
| on a system with SO_REUSEPORT defined in the headers but run on a system | |
| with an OS kernel that does not support that reasonably new socket option. | |
| - Fix compilation error under gcc of the ctypes module bundled libffi for arm. | |
| - Issue #19448: Add private API to SSL module to lookup ASN.1 objects by OID, | |
| NID, short name and long name. | |
| - Issue #19282: dbm.open now supports the context management protocol. (Initial | |
| patch by Claudiu Popa) | |
| - Issue #8311: Added support for writing any bytes-like objects in the aifc, | |
| sunau, and wave modules. | |
| - Issue #5202: Added support for unseekable files in the wave module. | |
| - Issue #19544 and Issue #1180: Restore global option to ignore | |
| ~/.pydistutils.cfg in Distutils, accidentally removed in backout of | |
| distutils2 changes. | |
| - Issue #19523: Closed FileHandler leak which occurred when delay was set. | |
| - Issue #19544 and Issue #6516: Restore support for --user and --group | |
| parameters to sdist command accidentally rolled back as part of the | |
| distutils2 rollback. | |
| - Issue #13674: Prevented time.strftime from crashing on Windows when given | |
| a year before 1900 and a format of %y. | |
| - Issue #19406: implementation of the ensurepip module (part of PEP 453). | |
| Patch by Donald Stufft and Nick Coghlan. | |
| - Issue #19544 and Issue #6286: Restore use of urllib over http allowing use | |
| of http_proxy for Distutils upload command, a feature accidentally lost | |
| in the rollback of distutils2. | |
| - Issue #19544 and Issue #7457: Restore the read_pkg_file method to | |
| distutils.dist.DistributionMetadata accidentally removed in the undo of | |
| distutils2. | |
| - Issue #16685: Added support for any bytes-like objects in the audioop module. | |
| Removed support for strings. | |
| - Issue #7171: Add Windows implementation of ``inet_ntop`` and ``inet_pton`` | |
| to socket module. Patch by Atsuo Ishimoto. | |
| - Issue #19261: Added support for writing 24-bit samples in the sunau module. | |
| - Issue #1097797: Added CP273 encoding, used on IBM mainframes in | |
| Germany and Austria. Mapping provided by Michael Bierenfeld. | |
| - Issue #1575020: Fixed support of 24-bit wave files on big-endian platforms. | |
| - Issue #19378: Fixed a number of cases in the dis module where the new | |
| "file" parameter was not being honoured correctly | |
| - Issue #19378: Removed the "dis.Bytecode.show_info" method | |
| - Issue #19378: Renamed the "dis.Bytecode.display_code" method to | |
| "dis.Bytecode.dis" and converted it to returning a string rather than | |
| printing output. | |
| - Issue #19378: the "line_offset" parameter in the new "dis.get_instructions" | |
| API has been renamed to "first_line" (and the default value and usage | |
| changed accordingly). This should reduce confusion with the more common use | |
| of "offset" in the dis docs to refer to bytecode offsets. | |
| - Issue #18678: Corrected spwd struct member names in spwd module: | |
| sp_nam->sp_namp, and sp_pwd->sp_pwdp. The old names are kept as extra | |
| structseq members, for backward compatibility. | |
| - Issue #6157: Fixed tkinter.Text.debug(). tkinter.Text.bbox() now raises | |
| TypeError instead of TclError on wrong number of arguments. Original patch | |
| by Guilherme Polo. | |
| - Issue #10197: Rework subprocess.get[status]output to use subprocess | |
| functionality and thus to work on Windows. Patch by Nick Coghlan | |
| - Issue #6160: The bbox() method of tkinter.Spinbox now returns a tuple of | |
| integers instead of a string. Based on patch by Guilherme Polo. | |
| - Issue #19403: contextlib.redirect_stdout is now reentrant | |
| - Issue #19286: Directories in ``package_data`` are no longer added to | |
| the filelist, preventing failure outlined in the ticket. | |
| - Issue #19480: HTMLParser now accepts all valid start-tag names as defined | |
| by the HTML5 standard. | |
| - Issue #15114: The html.parser module now raises a DeprecationWarning when the | |
| strict argument of HTMLParser or the HTMLParser.error method are used. | |
| - Issue #19410: Undo the special-casing removal of '' for | |
| importlib.machinery.FileFinder. | |
| - Issue #19424: Fix the warnings module to accept filename containing surrogate | |
| characters. | |
| - Issue #19435: Fix directory traversal attack on CGIHttpRequestHandler. | |
| - Issue #19227: Remove pthread_atfork() handler. The handler was added to | |
| solve #18747 but has caused issues. | |
| - Issue #19420: Fix reference leak in module initialization code of | |
| _hashopenssl.c | |
| - Issue #19329: Optimized compiling charsets in regular expressions. | |
| - Issue #19227: Try to fix deadlocks caused by re-seeding then OpenSSL | |
| pseudo-random number generator on fork(). | |
| - Issue #16037: HTTPMessage.readheaders() raises an HTTPException when more than | |
| 100 headers are read. Adapted from patch by Jyrki Pulliainen. | |
| - Issue #16040: CVE-2013-1752: nntplib: Limit maximum line lengths to 2048 to | |
| prevent readline() calls from consuming too much memory. Patch by Jyrki | |
| Pulliainen. | |
| - Issue #16041: CVE-2013-1752: poplib: Limit maximum line lengths to 2048 to | |
| prevent readline() calls from consuming too much memory. Patch by Jyrki | |
| Pulliainen. | |
| - Issue #17997: Change behavior of ``ssl.match_hostname()`` to follow RFC 6125, | |
| for security reasons. It now doesn't match multiple wildcards nor wildcards | |
| inside IDN fragments. | |
| - Issue #16039: CVE-2013-1752: Change use of readline in imaplib module to limit | |
| line length. Patch by Emil Lind. | |
| - Issue #19330: the unnecessary wrapper functions have been removed from the | |
| implementations of the new contextlib.redirect_stdout and | |
| contextlib.suppress context managers, which also ensures they provide | |
| reasonable help() output on instances | |
| - Issue #19393: Fix symtable.symtable function to not be confused when there are | |
| functions or classes named "top". | |
| - Issue #18685: Restore re performance to pre-PEP 393 levels. | |
| - Issue #19339: telnetlib module is now using time.monotonic() when available | |
| to compute timeout. | |
| - Issue #19399: fix sporadic test_subprocess failure. | |
| - Issue #13234: Fix os.listdir to work with extended paths on Windows. | |
| Patch by Santoso Wijaya. | |
| - Issue #19375: The site module adding a "site-python" directory to sys.path, | |
| if it exists, is now deprecated. | |
| - Issue #19379: Lazily import linecache in the warnings module, to make | |
| startup with warnings faster until a warning gets printed. | |
| - Issue #19288: Fixed the "in" operator of dbm.gnu databases for string | |
| argument. Original patch by Arfrever Frehtes Taifersar Arahesis. | |
| - Issue #19287: Fixed the "in" operator of dbm.ndbm databases for string | |
| argument. Original patch by Arfrever Frehtes Taifersar Arahesis. | |
| - Issue #19327: Fixed the working of regular expressions with too big charset. | |
| - Issue #17400: New 'is_global' attribute for ipaddress to tell if an address | |
| is allocated by IANA for global or private networks. | |
| - Issue #19350: Increasing the test coverage of macurl2path. Patch by Colin | |
| Williams. | |
| - Issue #19365: Optimized the parsing of long replacement string in re.sub*() | |
| functions. | |
| - Issue #19352: Fix unittest discovery when a module can be reached | |
| through several paths (e.g. under Debian/Ubuntu with virtualenv). | |
| - Issue #15207: Fix mimetypes to read from correct part of Windows registry | |
| Original patch by Dave Chambers | |
| - Issue #16595: Add prlimit() to resource module. | |
| - Issue #19324: Expose Linux-specific constants in resource module. | |
| - Load SSL's error strings in hashlib. | |
| - Issue #18527: Upgrade internal copy of zlib to 1.2.8. | |
| - Issue #19274: Add a filterfunc parameter to PyZipFile.writepy. | |
| - Issue #8964: fix platform._sys_version to handle IronPython 2.6+. | |
| Patch by Martin Matusiak. | |
| - Issue #19413: Restore pre-3.3 reload() semantics of re-finding modules. | |
| - Issue #18958: Improve error message for json.load(s) while passing a string | |
| that starts with a UTF-8 BOM. | |
| - Issue #19307: Improve error message for json.load(s) while passing objects | |
| of the wrong type. | |
| - Issue #16038: CVE-2013-1752: ftplib: Limit amount of data read by | |
| limiting the call to readline(). Original patch by Michał | |
| Jastrzębski and Giampaolo Rodola. | |
| - Issue #17087: Improved the repr for regular expression match objects. | |
| Tests | |
| ----- | |
| - Issue #19664: test_userdict's repr test no longer depends on the order | |
| of dict elements. | |
| - Issue #19440: Clean up test_capi by removing an unnecessary __future__ | |
| import, converting from test_main to unittest.main, and running the | |
| _testcapi module tests as subTests of a unittest TestCase method. | |
| - Issue #19378: the main dis module tests are now run with both stdout | |
| redirection *and* passing an explicit file parameter | |
| - Issue #19378: removed the not-actually-helpful assertInstructionMatches | |
| and assertBytecodeExactlyMatches helpers from bytecode_helper | |
| - Issue #18702: All skipped tests now reported as skipped. | |
| - Issue #19439: interpreter embedding tests are now executed on Windows | |
| (Patch by Zachary Ware) | |
| - Issue #19085: Added basic tests for all tkinter widget options. | |
| - Issue #19384: Fix test_py_compile for root user, patch by Claudiu Popa. | |
| Documentation | |
| ------------- | |
| - Issue #18326: Clarify that list.sort's arguments are keyword-only. Also, | |
| attempt to reduce confusion in the glossary by not saying there are | |
| different "types" of arguments and parameters. | |
| Build | |
| ----- | |
| - Issue #19358: "make clinic" now runs the Argument Clinic preprocessor | |
| over all CPython source files. | |
| - Update SQLite to 3.8.1, xz to 5.0.5, and Tcl/Tk to 8.6.1 on Windows. | |
| - Issue #16632: Enable DEP and ASLR on Windows. | |
| - Issue #17791: Drop PREFIX and EXEC_PREFIX definitions from PC/pyconfig.h | |
| - Add workaround for VS 2010 nmake clean issue. VS 2010 doesn't set up PATH | |
| for nmake.exe correctly. | |
| - Issue #19550: Implement Windows installer changes of PEP 453 (ensurepip). | |
| - Issue #19520: Fix compiler warning in the _sha3 module on 32bit Windows. | |
| - Issue #19356: Avoid using a C variabled named "_self", it's a reserved | |
| word in some C compilers. | |
| - Issue #15792: Correct build options on Win64. Patch by Jeremy Kloth. | |
| - Issue #19373: Apply upstream change to Tk 8.5.15 fixing OS X 10.9 | |
| screen refresh problem for OS X installer build. | |
| - Issue #19649: On OS X, the same set of file names are now installed | |
| in bin directories for all configurations: non-framework vs framework, | |
| and single arch vs universal builds. pythonx.y-32 is now always | |
| installed for 64-bit/32-bit universal builds. The obsolete and | |
| undocumented pythonw* symlinks are no longer installed anywhere. | |
| - Issue #19553: PEP 453 - "make install" and "make altinstall" now install or | |
| upgrade pip by default, using the bundled pip provided by the new ensurepip | |
| module. A new configure option, --with-ensurepip[=upgrade|install|no], is | |
| available to override the default ensurepip "--upgrade" option. The option | |
| can also be set with "make [alt]install ENSUREPIP=[upgrade|install|no]". | |
| - Issue #19551: PEP 453 - the OS X installer now installs pip by default. | |
| - Update third-party libraries for OS X installers: xz 5.0.3 -> 5.0.5, | |
| SQLite 3.7.13 -> 3.8.1 | |
| - Issue #15663: Revert OS X installer built-in Tcl/Tk support for 3.4.0b1. | |
| Some third-party projects, such as Matplotlib and PIL/Pillow, | |
| depended on being able to build with Tcl and Tk frameworks in | |
| /Library/Frameworks. | |
| Tools/Demos | |
| ----------- | |
| - Issue #19730: Argument Clinic now supports all the existing PyArg | |
| "format units" as legacy converters, as well as two new features: | |
| "self converters" and the "version" directive. | |
| - Issue #19552: pyvenv now bootstraps pip into virtual environments by | |
| default (pass --without-pip to request the old behaviour) | |
| - Issue #19390: Argument Clinic no longer accepts malformed Python | |
| and C ids. | |
| What's New in Python 3.4.0 Alpha 4? | |
| =================================== | |
| Release date: 2013-10-20 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #19301: Give classes and functions that are explicitly marked global a | |
| global qualname. | |
| - Issue #19279: UTF-7 decoder no longer produces illegal strings. | |
| - Issue #16612: Add "Argument Clinic", a compile-time preprocessor for | |
| C files to generate argument parsing code. (See PEP 436.) | |
| - Issue #18810: Shift stat calls in importlib.machinery.FileFinder such that | |
| the code is optimistic that if something exists in a directory named exactly | |
| like the possible package being searched for that it's in actuality a | |
| directory. | |
| - Issue #18416: importlib.machinery.PathFinder now treats '' as the cwd and | |
| importlib.machinery.FileFinder no longer special-cases '' to '.'. This leads | |
| to modules imported from cwd to now possess an absolute file path for | |
| __file__ (this does not affect modules specified by path on the CLI but it | |
| does affect -m/runpy). It also allows FileFinder to be more consistent by not | |
| having an edge case. | |
| - Issue #4555: All exported C symbols are now prefixed with either | |
| "Py" or "_Py". | |
| - Issue #19219: Speed up marshal.loads(), and make pyc files slightly | |
| (5% to 10%) smaller. | |
| - Issue #19221: Upgrade Unicode database to version 6.3.0. | |
| - Issue #16742: The result of the C callback PyOS_ReadlineFunctionPointer must | |
| now be a string allocated by PyMem_RawMalloc() or PyMem_RawRealloc() (or NULL | |
| if an error occurred), instead of a string allocated by PyMem_Malloc() or | |
| PyMem_Realloc(). | |
| - Issue #19199: Remove ``PyThreadState.tick_counter`` field | |
| - Fix macro expansion of _PyErr_OCCURRED(), and make sure to use it in at | |
| least one place so as to avoid regressions. | |
| - Issue #19087: Improve bytearray allocation in order to allow cheap popping | |
| of data at the front (slice deletion). | |
| - Issue #19014: memoryview.cast() is now allowed on zero-length views. | |
| - Issue #18690: memoryview is now automatically registered with | |
| collections.abc.Sequence | |
| - Issue #19078: memoryview now correctly supports the reversed builtin | |
| (Patch by Claudiu Popa) | |
| Library | |
| ------- | |
| - Issue #17457: unittest test discovery now works with namespace packages. | |
| Patch by Claudiu Popa. | |
| - Issue #18235: Fix the sysconfig variables LDSHARED and BLDSHARED under AIX. | |
| Patch by David Edelsohn. | |
| - Issue #18606: Add the new "statistics" module (PEP 450). Contributed | |
| by Steven D'Aprano. | |
| - Issue #12866: The audioop module now supports 24-bit samples. | |
| - Issue #19254: Provide an optimized Python implementation of pbkdf2_hmac. | |
| - Issues #19201, Issue #19222, Issue #19223: Add "x" mode (exclusive creation) | |
| in opening file to bz2, gzip and lzma modules. Patches by Tim Heaney and | |
| Vajrasky Kok. | |
| - Fix a reference count leak in _sre. | |
| - Issue #19262: Initial check in of the 'asyncio' package (a.k.a. Tulip, | |
| a.k.a. PEP 3156). There are no docs yet, and the PEP is slightly | |
| out of date with the code. This module will have *provisional* status | |
| in Python 3.4. | |
| - Issue #19276: Fixed the wave module on 64-bit big-endian platforms. | |
| - Issue #19266: Rename the new-in-3.4 ``contextlib.ignore`` context manager | |
| to ``contextlib.suppress`` in order to be more consistent with existing | |
| descriptions of that operation elsewhere in the language and standard | |
| library documentation (Patch by Zero Piraeus). | |
| - Issue #18891: Completed the new email package (provisional) API additions | |
| by adding new classes EmailMessage, MIMEPart, and ContentManager. | |
| - Issue #18281: Unused stat constants removed from `tarfile`. | |
| - Issue #18999: Multiprocessing now supports 'contexts' with the same API | |
| as the module, but bound to specified start methods. | |
| - Issue #18468: The re.split, re.findall, and re.sub functions and the group() | |
| and groups() methods of match object now always return a string or a bytes | |
| object. | |
| - Issue #18725: The textwrap module now supports truncating multiline text. | |
| - Issue #18776: atexit callbacks now display their full traceback when they | |
| raise an exception. | |
| - Issue #17827: Add the missing documentation for ``codecs.encode`` and | |
| ``codecs.decode``. | |
| - Issue #19218: Rename collections.abc to _collections_abc in order to | |
| speed up interpreter start. | |
| - Issue #18582: Add 'pbkdf2_hmac' to the hashlib module. It implements PKCS#5 | |
| password-based key derivation functions with HMAC as pseudorandom function. | |
| - Issue #19131: The aifc module now correctly reads and writes sampwidth of | |
| compressed streams. | |
| - Issue #19209: Remove import of copyreg from the os module to speed up | |
| interpreter startup. stat_result and statvfs_result are now hard-coded to | |
| reside in the os module. | |
| - Issue #19205: Don't import the 're' module in site and sysconfig module to | |
| speed up interpreter start. | |
| - Issue #9548: Add a minimal "_bootlocale" module that is imported by the | |
| _io module instead of the full locale module. | |
| - Issue #18764: Remove the 'print' alias for the PDB 'p' command so that it no | |
| longer shadows the print function. | |
| - Issue #19158: A rare race in BoundedSemaphore could allow .release() too | |
| often. | |
| - Issue #15805: Add contextlib.redirect_stdout(). | |
| - Issue #18716: Deprecate the formatter module. | |
| - Issue #10712: 2to3 has a new "asserts" fixer that replaces deprecated names | |
| of unittest methods (e.g. failUnlessEqual -> assertEqual). | |
| - Issue #18037: 2to3 now escapes ``'\u'`` and ``'\U'`` in native strings. | |
| - Issue #17839: base64.decodebytes and base64.encodebytes now accept any | |
| object that exports a 1 dimensional array of bytes (this means the same | |
| is now also true for base64_codec) | |
| - Issue #19132: The pprint module now supports compact mode. | |
| - Issue #19137: The pprint module now correctly formats instances of set and | |
| frozenset subclasses. | |
| - Issue #10042: functools.total_ordering now correctly handles | |
| NotImplemented being returned by the underlying comparison function (Patch | |
| by Katie Miller) | |
| - Issue #19092: contextlib.ExitStack now correctly reraises exceptions | |
| from the __exit__ callbacks of inner context managers (Patch by Hrvoje | |
| Nikšić) | |
| - Issue #12641: Avoid passing "-mno-cygwin" to the mingw32 compiler, except | |
| when necessary. Patch by Oscar Benjamin. | |
| - Issue #5845: In site.py, only load readline history from ~/.python_history | |
| if no history has been read already. This avoids double writes to the | |
| history file at shutdown. | |
| - Properly initialize all fields of a SSL object after allocation. | |
| - Issue #19095: SSLSocket.getpeercert() now raises ValueError when the | |
| SSL handshake hasn't been done. | |
| - Issue #4366: Fix building extensions on all platforms when --enable-shared | |
| is used. | |
| - Issue #19030: Fixed `inspect.getmembers` and `inspect.classify_class_attrs` | |
| to attempt activating descriptors before falling back to a __dict__ search | |
| for faulty descriptors. `inspect.classify_class_attrs` no longer returns | |
| Attributes whose home class is None. | |
| C API | |
| ----- | |
| - Issue #1772673: The type of `char*` arguments now changed to `const char*`. | |
| - Issue #16129: Added a `Py_SetStandardStreamEncoding` pre-initialization API | |
| to allow embedding applications like Blender to force a particular | |
| encoding and error handler for the standard IO streams (initial patch by | |
| Bastien Montagne) | |
| Tests | |
| ----- | |
| - Issue #19275: Fix test_site on AMD64 Snow Leopard | |
| - Issue #14407: Fix unittest test discovery in test_concurrent_futures. | |
| - Issue #18919: Unified and extended tests for audio modules: aifc, sunau and | |
| wave. | |
| - Issue #18714: Added tests for ``pdb.find_function()``. | |
| Documentation | |
| ------------- | |
| - Issue #18758: Fixed and improved cross-references. | |
| - Issue #18972: Modernize email examples and use the argparse module in them. | |
| Build | |
| ----- | |
| - Issue #19130: Correct PCbuild/readme.txt, Python 3.3 and 3.4 require VS 2010. | |
| - Issue #15663: Update OS X 10.6+ installer to use Tcl/Tk 8.5.15. | |
| - Issue #14499: Fix several problems with OS X universal build support: | |
| 1. ppc arch detection for extension module builds broke with Xcode 5 | |
| 2. ppc arch detection in configure did not work on OS X 10.4 | |
| 3. -sysroot and -arch flags were unnecessarily duplicated | |
| 4. there was no obvious way to configure an intel-32 only build. | |
| - Issue #19019: Change the OS X installer build script to use CFLAGS instead | |
| of OPT for special build options. By setting OPT, some compiler-specific | |
| options like -fwrapv were overridden and thus not used, which could result | |
| in broken interpreters when building with clang. | |
| What's New in Python 3.4.0 Alpha 3? | |
| =================================== | |
| Release date: 2013-09-29 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #18818: The "encodingname" part of PYTHONIOENCODING is now optional. | |
| - Issue #19098: Prevent overflow in the compiler when the recursion limit is set | |
| absurdly high. | |
| Library | |
| ------- | |
| - Issue #18929: `inspect.classify_class_attrs()` now correctly finds class | |
| attributes returned by `dir()` that are located in the metaclass. | |
| - Issue #18950: Fix miscellaneous bugs in the sunau module. | |
| Au_read.readframes() now updates current file position and reads correct | |
| number of frames from multichannel stream. Au_write.writeframesraw() now | |
| correctly updates current file position. Au_read.getnframes() now returns an | |
| integer (as in Python 2). Au_read and Au_write now correctly works with file | |
| object if start file position is not a zero. | |
| - Issue #18594: The fast path for collections.Counter() was never taken | |
| due to an over-restrictive type check. | |
| - Issue #19053: ZipExtFile.read1() with non-zero argument no more returns empty | |
| bytes until end of data. | |
| - logging: added support for Unix domain sockets to SocketHandler and | |
| DatagramHandler. | |
| - Issue #18996: TestCase.assertEqual() now more cleverly shorten differing | |
| strings in error report. | |
| - Issue #19034: repr() for tkinter.Tcl_Obj now exposes string representation. | |
| - Issue #18978: ``urllib.request.Request`` now allows the method to be | |
| indicated on the class and no longer sets it to None in ``__init__``. | |
| - Issue #18626: the inspect module now offers a basic command line | |
| introspection interface (Initial patch by Claudiu Popa) | |
| - Issue #3015: Fixed tkinter with ``wantobjects=False``. Any Tcl command call | |
| returned empty string. | |
| - Issue #19037: The mailbox module now makes all changes to maildir files | |
| before moving them into place, to avoid race conditions with other programs | |
| that may be accessing the maildir directory. | |
| - Issue #14984: On POSIX systems, when netrc is called without a filename | |
| argument (and therefore is reading the user's $HOME/.netrc file), it now | |
| enforces the same security rules as typical ftp clients: the .netrc file must | |
| be owned by the user that owns the process and must not be readable by any | |
| other user. | |
| - Issue #18873: The tokenize module now detects Python source code encoding | |
| only in comment lines. | |
| - Issue #17764: Enable http.server to bind to a user specified network | |
| interface. Patch contributed by Malte Swart. | |
| - Issue #18937: Add an assertLogs() context manager to unittest.TestCase | |
| to ensure that a block of code emits a message using the logging module. | |
| - Issue #17324: Fix http.server's request handling case on trailing '/'. Patch | |
| contributed by Vajrasky Kok. | |
| - Issue #19018: The heapq.merge() function no longer suppresses IndexError | |
| in the underlying iterables. | |
| - Issue #18784: The uuid module no longer attempts to load libc via ctypes.CDLL | |
| if all the necessary functions have already been found in libuuid. Patch by | |
| Evgeny Sologubov. | |
| - The :envvar:`PYTHONFAULTHANDLER` environment variable now only enables the | |
| faulthandler module if the variable is non-empty. Same behaviour than other | |
| variables like :envvar:`PYTHONDONTWRITEBYTECODE`. | |
| - Issue #1565525: New function ``traceback.clear_frames`` will clear | |
| the local variables of all the stack frames referenced by a traceback | |
| object. | |
| Tests | |
| ----- | |
| - Issue #18952: Fix regression in support data downloads introduced when | |
| test.support was converted to a package. Regression noticed by Zachary | |
| Ware. | |
| IDLE | |
| ---- | |
| - Issue #18873: IDLE now detects Python source code encoding only in comment | |
| lines. | |
| - Issue #18988: The "Tab" key now works when a word is already autocompleted. | |
| Documentation | |
| ------------- | |
| - Issue #17003: Unified the size argument names in the io module with common | |
| practice. | |
| Build | |
| ----- | |
| - Issue #18596: Support the use of address sanity checking in recent versions | |
| of clang and GCC by appropriately marking known false alarms in the small | |
| object allocator. Patch contributed by Dhiru Kholia. | |
| Tools/Demos | |
| ----------- | |
| - Issue #18873: 2to3 and the findnocoding.py script now detect Python source | |
| code encoding only in comment lines. | |
| What's New in Python 3.4.0 Alpha 2? | |
| =================================== | |
| Release date: 2013-09-09 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #18942: sys._debugmallocstats() output was damaged on Windows. | |
| - Issue #18571: Implementation of the PEP 446: file descriptors and file | |
| handles are now created non-inheritable; add functions | |
| os.get/set_inheritable(), os.get/set_handle_inheritable() and | |
| socket.socket.get/set_inheritable(). | |
| - Issue #11619: The parser and the import machinery do not encode Unicode | |
| filenames anymore on Windows. | |
| - Issue #18808: Non-daemon threads are now automatically joined when | |
| a sub-interpreter is shutdown (it would previously dump a fatal error). | |
| - Remove support for compiling on systems without getcwd(). | |
| - Issue #18774: Remove last bits of GNU PTH thread code and thread_pth.h. | |
| - Issue #18771: Add optimization to set object lookups to reduce the cost | |
| of hash collisions. The core idea is to inspect a second key/hash pair | |
| for each cache line retrieved. | |
| - Issue #16105: When a signal handler fails to write to the file descriptor | |
| registered with ``signal.set_wakeup_fd()``, report an exception instead | |
| of ignoring the error. | |
| - Issue #18722: Remove uses of the "register" keyword in C code. | |
| - Issue #18667: Add missing "HAVE_FCHOWNAT" symbol to posix._have_functions. | |
| - Issue #16499: Add command line option for isolated mode. | |
| - Issue #15301: Parsing fd, uid, and gid parameters for builtins | |
| in Modules/posixmodule.c is now far more robust. | |
| - Issue #18368: PyOS_StdioReadline() no longer leaks memory when realloc() | |
| fail. | |
| - Issue #17934: Add a clear() method to frame objects, to help clean up | |
| expensive details (local variables) and break reference cycles. | |
| - Issue #18780: %-formatting codes %d, %i, and %u now treat int-subclasses | |
| as int (displays value of int-subclass instead of str(int-subclass) ). | |
| Library | |
| ------- | |
| - Issue #18808: Thread.join() now waits for the underlying thread state to | |
| be destroyed before returning. This prevents unpredictable aborts in | |
| Py_EndInterpreter() when some non-daemon threads are still running. | |
| - Issue #18458: Prevent crashes with newer versions of libedit. Its readline | |
| emulation has changed from 0-based indexing to 1-based like gnu readline. | |
| - Issue #18852: Handle case of ``readline.__doc__`` being ``None`` in the new | |
| readline activation code in ``site.py``. | |
| - Issue #18672: Fixed format specifiers for Py_ssize_t in debugging output in | |
| the _sre module. | |
| - Issue #18830: inspect.getclasstree() no longer produces duplicate entries even | |
| when input list contains duplicates. | |
| - Issue #18878: sunau.open now supports the context management protocol. Based on | |
| patches by Claudiu Popa and R. David Murray. | |
| - Issue #18909: Fix _tkinter.tkapp.interpaddr() on Windows 64-bit, don't cast | |
| 64-bit pointer to long (32 bits). | |
| - Issue #18876: The FileIO.mode attribute now better reflects the actual mode | |
| under which the file was opened. Patch by Erik Bray. | |
| - Issue #16853: Add new selectors module. | |
| - Issue #18882: Add threading.main_thread() function. | |
| - Issue #18901: The sunau getparams method now returns a namedtuple rather than | |
| a plain tuple. Patch by Claudiu Popa. | |
| - Issue #17487: The result of the wave getparams method now is pickleable again. | |
| Patch by Claudiu Popa. | |
| - Issue #18756: os.urandom() now uses a lazily-opened persistent file | |
| descriptor, so as to avoid using many file descriptors when run in | |
| parallel from multiple threads. | |
| - Issue #18418: After fork(), reinit all threads states, not only active ones. | |
| Patch by A. Jesse Jiryu Davis. | |
| - Issue #17974: Switch unittest from using getopt to using argparse. | |
| - Issue #11798: TestSuite now drops references to own tests after execution. | |
| - Issue #16611: http.cookie now correctly parses the 'secure' and 'httponly' | |
| cookie flags. | |
| - Issue #11973: Fix a problem in kevent. The flags and fflags fields are now | |
| properly handled as unsigned. | |
| - Issue #18807: ``pyvenv`` now takes a --copies argument allowing copies | |
| instead of symlinks even where symlinks are available and the default. | |
| - Issue #18538: ``python -m dis`` now uses argparse for argument processing. | |
| Patch by Michele Orrù. | |
| - Issue #18394: Close cgi.FieldStorage's optional file. | |
| - Issue #17702: On error, os.environb now suppresses the exception context | |
| when raising a new KeyError with the original key. | |
| - Issue #16809: Fixed some tkinter incompabilities with Tcl/Tk 8.6. | |
| - Issue #16809: Tkinter's splitlist() and split() methods now accept Tcl_Obj | |
| argument. | |
| - Issue #18324: set_payload now correctly handles binary input. This also | |
| supersedes the previous fixes for #14360, #1717, and #16564. | |
| - Issue #18794: Add a fileno() method and a closed attribute to select.devpoll | |
| objects. | |
| - Issue #17119: Fixed integer overflows when processing large strings and tuples | |
| in the tkinter module. | |
| - Issue #18747: Re-seed OpenSSL's pseudo-random number generator after fork. | |
| A pthread_atfork() parent handler is used to seed the PRNG with pid, time | |
| and some stack data. | |
| - Issue #8865: Concurrent invocation of select.poll.poll() now raises a | |
| RuntimeError exception. Patch by Christian Schubert. | |
| - Issue #18777: The ssl module now uses the new CRYPTO_THREADID API of | |
| OpenSSL 1.0.0+ instead of the deprecated CRYPTO id callback function. | |
| - Issue #18768: Correct doc string of RAND_edg(). Patch by Vajrasky Kok. | |
| - Issue #18178: Fix ctypes on BSD. dlmalloc.c was compiled twice which broke | |
| malloc weak symbols. | |
| - Issue #18709: Fix CVE-2013-4238. The SSL module now handles NULL bytes | |
| inside subjectAltName correctly. Formerly the module has used OpenSSL's | |
| GENERAL_NAME_print() function to get the string representation of ASN.1 | |
| strings for ``rfc822Name`` (email), ``dNSName`` (DNS) and | |
| ``uniformResourceIdentifier`` (URI). | |
| - Issue #18701: Remove support of old CPython versions (<3.0) from C code. | |
| - Issue #18756: Improve error reporting in os.urandom() when the failure | |
| is due to something else than /dev/urandom not existing (for example, | |
| exhausting the file descriptor limit). | |
| - Issue #18673: Add O_TMPFILE to os module. O_TMPFILE requires Linux kernel | |
| 3.11 or newer. It's only defined on system with 3.11 uapi headers, too. | |
| - Issue #18532: Change the builtin hash algorithms' names to lower case names | |
| as promised by hashlib's documentation. | |
| - Issue #8713: add new spawn and forkserver start methods, and new functions | |
| get_all_start_methods, get_start_method, and set_start_method, to | |
| multiprocessing. | |
| - Issue #18405: Improve the entropy of crypt.mksalt(). | |
| - Issue #12015: The tempfile module now uses a suffix of 8 random characters | |
| instead of 6, to reduce the risk of filename collision. The entropy was | |
| reduced when uppercase letters were removed from the charset used to generate | |
| random characters. | |
| - Issue #18585: Add :func:`textwrap.shorten` to collapse and truncate a | |
| piece of text to a given length. | |
| - Issue #18598: Tweak exception message for importlib.import_module() to | |
| include the module name when a key argument is missing. | |
| - Issue #19151: Fix docstring and use of _get_supported_file_loaders() to | |
| reflect 2-tuples. | |
| - Issue #19152: Add ExtensionFileLoader.get_filename(). | |
| - Issue #18676: Change 'positive' to 'non-negative' in queue.py put and get | |
| docstrings and ValueError messages. Patch by Zhongyue Luo | |
| - Fix refcounting issue with extension types in tkinter. | |
| - Issue #8112: xlmrpc.server's DocXMLRPCServer server no longer raises an error | |
| if methods have annotations; it now correctly displays the annotations. | |
| - Issue #18600: Added policy argument to email.message.Message.as_string, | |
| and as_bytes and __bytes__ methods to Message. | |
| - Issue #18671: Output more information when logging exceptions occur. | |
| - Issue #18621: Prevent the site module's patched builtins from keeping | |
| too many references alive for too long. | |
| - Issue #4885: Add weakref support to mmap objects. Patch by Valerie Lambert. | |
| - Issue #8860: Fixed rounding in timedelta constructor. | |
| - Issue #18849: Fixed a Windows-specific tempfile bug where collision with an | |
| existing directory caused mkstemp and related APIs to fail instead of | |
| retrying. Report and fix by Vlad Shcherbina. | |
| - Issue #18920: argparse's default destination for the version action (-v, | |
| --version) has also been changed to stdout, to match the Python executable. | |
| Tests | |
| ----- | |
| - Issue #18623: Factor out the _SuppressCoreFiles context manager into | |
| test.support. Patch by Valerie Lambert. | |
| - Issue #12037: Fix test_email for desktop Windows. | |
| - Issue #15507: test_subprocess's test_send_signal could fail if the test | |
| runner were run in an environment where the process inherited an ignore | |
| setting for SIGINT. Restore the SIGINT handler to the desired | |
| KeyboardInterrupt raising one during that test. | |
| - Issue #16799: Switched from getopt to argparse style in regrtest's argument | |
| parsing. Added more tests for regrtest's argument parsing. | |
| - Issue #18792: Use "127.0.0.1" or "::1" instead of "localhost" as much as | |
| possible, since "localhost" goes through a DNS lookup under recent Windows | |
| versions. | |
| IDLE | |
| ---- | |
| - Issue #18489: Add tests for SearchEngine. Original patch by Phil Webster. | |
| Documentation | |
| ------------- | |
| - Issue #18743: Fix references to non-existent "StringIO" module. | |
| - Issue #18783: Removed existing mentions of Python long type in docstrings, | |
| error messages and comments. | |
| Build | |
| ----- | |
| - Issue #1584: Provide configure options to override default search paths for | |
| Tcl and Tk when building _tkinter. | |
| - Issue #15663: Tcl/Tk 8.5.14 is now included with the OS X 10.6+ 64-/32-bit | |
| installer. It is no longer necessary to install a third-party version of | |
| Tcl/Tk 8.5 to work around the problems in the Apple-supplied Tcl/Tk 8.5 | |
| shipped in OS X 10.6 and later releases. | |
| Tools/Demos | |
| ----------- | |
| - Issue #18922: Now The Lib/smtpd.py and Tools/i18n/msgfmt.py scripts write | |
| their version strings to stdout, and not to sderr. | |
| What's New in Python 3.4.0 Alpha 1? | |
| =================================== | |
| Release date: 2013-08-03 | |
| Core and Builtins | |
| ----------------- | |
| - Issue #16741: Fix an error reporting in int(). | |
| - Issue #17899: Fix rare file descriptor leak in os.listdir(). | |
| - Issue #10241: Clear extension module dict copies at interpreter shutdown. | |
| Patch by Neil Schemenauer, minimally modified. | |
| - Issue #9035: ismount now recognises volumes mounted below a drive root | |
| on Windows. Original patch by Atsuo Ishimoto. | |
| - Issue #18214: Improve finalization of Python modules to avoid setting | |
| their globals to None, in most cases. | |
| - Issue #18112: PEP 442 implementation (safe object finalization). | |
| - Issue #18552: Check return value of PyArena_AddPyObject() in | |
| obj2ast_object(). | |
| - Issue #18560: Fix potential NULL pointer dereference in sum(). | |
| - Issue #18520: Add a new PyStructSequence_InitType2() function, same than | |
| PyStructSequence_InitType() except that it has a return value (0 on success, | |
| -1 on error). | |
| - Issue #15905: Fix theoretical buffer overflow in handling of sys.argv[0], | |
| prefix and exec_prefix if the operation system does not obey MAXPATHLEN. | |
| - Issue #18408: Fix many various bugs in code handling errors, especially | |
| on memory allocation failure (MemoryError). | |
| - Issue #18344: Fix potential ref-leaks in _bufferedreader_read_all(). | |
| - Issue #18342: Use the repr of a module name when an import fails when using | |
| ``from ... import ...``. | |
| - Issue #17872: Fix a segfault in marshal.load() when input stream returns | |
| more bytes than requested. | |
| - Issue #18338: `python --version` now prints version string to stdout, and | |
| not to stderr. Patch by Berker Peksag and Michael Dickens. | |
| - Issue #18426: Fix NULL pointer dereference in C extension import when | |
| PyModule_GetDef() returns an error. | |
| - Issue #17206: On Windows, increase the stack size from 2 MB to 4.2 MB to fix | |
| a stack overflow in the marshal module (fix a crash in test_marshal). | |
| Patch written by Jeremy Kloth. | |
| - Issue #3329: Implement the PEP 445: Add new APIs to customize Python memory | |
| allocators. | |
| - Issue #18328: Reorder ops in PyThreadState_Delete*() functions. Now the | |
| tstate is first removed from TLS and then deallocated. | |
| - Issue #13483: Use VirtualAlloc in obmalloc on Windows. | |
| - Issue #18184: PyUnicode_FromFormat() and PyUnicode_FromFormatV() now raise | |
| OverflowError when an argument of %c format is out of range. | |
| - Issue #18111: The min() and max() functions now support a default argument | |
| to be returned instead of raising a ValueError on an empty sequence. | |
| (Contributed by Julian Berman.) | |
| - Issue #18137: Detect integer overflow on precision in float.__format__() | |
| and complex.__format__(). | |
| - Issue #18183: Fix various unicode operations on strings with large unicode | |
| codepoints. | |
| - Issue #18180: Fix ref leak in _PyImport_GetDynLoadWindows(). | |
| - Issue #18038: SyntaxError raised during compilation sources with illegal | |
| encoding now always contains an encoding name. | |
| - Issue #17931: Resolve confusion on Windows between pids and process | |
| handles. | |
| - Tweak the exception message when the magic number or size value in a bytecode | |
| file is truncated. | |
| - Issue #17932: Fix an integer overflow issue on Windows 64-bit in iterators: | |
| change the C type of seqiterobject.it_index from long to Py_ssize_t. | |
| - Issue #18065: Don't set __path__ to the package name for frozen packages. | |
| - Issue #18088: When reloading a module, unconditionally reset all relevant | |
| attributes on the module (e.g. __name__, __loader__, __package__, __file__, | |
| __cached__). | |
| - Issue #17937: Try harder to collect cyclic garbage at shutdown. | |
| - Issue #12370: Prevent class bodies from interfering with the __class__ | |
| closure. | |
| - Issue #17644: Fix a crash in str.format when curly braces are used in square | |
| brackets. | |
| - Issue #17237: Fix crash in the ASCII decoder on m68k. | |
| - Issue #17927: Frame objects kept arguments alive if they had been | |
| copied into a cell, even if the cell was cleared. | |
| - Issue #1545463: At shutdown, defer finalization of codec modules so | |
| that stderr remains usable. | |
| - Issue #7330: Implement width and precision (ex: "%5.3s") for the format | |
| string of PyUnicode_FromFormat() function, original patch written by Ysj Ray. | |
| - Issue #1545463: Global variables caught in reference cycles are now | |
| garbage-collected at shutdown. | |
| - Issue #17094: Clear stale thread states after fork(). Note that this | |
| is a potentially disruptive change since it may release some system | |
| resources which would otherwise remain perpetually alive (e.g. database | |
| connections kept in thread-local storage). | |
| - Issue #17408: Avoid using an obsolete instance of the copyreg module when | |
| the interpreter is shutdown and then started again. | |
| - Issue #5845: Enable tab-completion in the interactive interpreter by | |
| default, thanks to a new sys.__interactivehook__. | |
| - Issue #17115,17116: Module initialization now includes setting __package__ and | |
| __loader__ attributes to None. | |
| - Issue #17853: Ensure locals of a class that shadow free variables always win | |
| over the closures. | |
| - Issue #17863: In the interactive console, don't loop forever if the encoding | |
| can't be fetched from stdin. | |
| - Issue #17867: Raise an ImportError if __import__ is not found in __builtins__. | |
| - Issue #18698: Ensure importlib.reload() returns the module out of sys.modules. | |
| - Issue #17857: Prevent build failures with pre-3.5.0 versions of sqlite3, | |
| such as was shipped with Centos 5 and Mac OS X 10.4. | |
| - Issue #17413: sys.settrace callbacks were being passed a string instead of an | |
| exception instance for the 'value' element of the arg tuple if the exception | |
| originated from C code; now an exception instance is always provided. | |
| - Issue #17782: Fix undefined behaviour on platforms where | |
| ``struct timespec``'s "tv_nsec" member is not a C long. | |
| - Issue #17722: When looking up __round__, resolve descriptors. | |
| - Issue #16061: Speed up str.replace() for replacing 1-character strings. | |
| - Issue #17715: Fix segmentation fault from raising an exception in a __trunc__ | |
| method. | |
| - Issue #17643: Add __callback__ attribute to weakref.ref. | |
| - Issue #16447: Fixed potential segmentation fault when setting __name__ on a | |
| class. | |
| - Issue #17669: Fix crash involving finalization of generators using yield from. | |
| - Issue #14439: Python now prints the traceback on runpy failure at startup. | |
| - Issue #17469: Fix _Py_GetAllocatedBlocks() and sys.getallocatedblocks() | |
| when running on valgrind. | |
| - Issue #17619: Make input() check for Ctrl-C correctly on Windows. | |
| - Issue #17357: Add missing verbosity messages for -v/-vv that were lost during | |
| the importlib transition. | |
| - Issue #17610: Don't rely on non-standard behavior of the C qsort() function. | |
| - Issue #17323: The "[X refs, Y blocks]" printed by debug builds has been | |
| disabled by default. It can be re-enabled with the `-X showrefcount` option. | |
| - Issue #17328: Fix possible refleak in dict.setdefault. | |
| - Issue #17275: Corrected class name in init error messages of the C version of | |
| BufferedWriter and BufferedRandom. | |
| - Issue #7963: Fixed misleading error message that issued when object is | |
| called without arguments. | |
| - Issue #8745: Small speed up zipimport on Windows. Patch by Catalin Iacob. | |
| - Issue #5308: Raise ValueError when marshalling too large object (a sequence | |
| with size >= 2**31), instead of producing illegal marshal data. | |
| - Issue #12983: Bytes literals with invalid ``\x`` escape now raise a SyntaxError | |
| and a full traceback including line number. | |
| - Issue #16967: In function definition, evaluate positional defaults before | |
| keyword-only defaults. | |
| - Issue #17173: Remove uses of locale-dependent C functions (isalpha() etc.) | |
| in the interpreter. | |
| - Issue #17137: When an Unicode string is resized, the internal wide character | |
| string (wstr) format is now cleared. | |
| - Issue #17043: The unicode-internal decoder no longer read past the end of | |
| input buffer. | |
| - Issue #17098: All modules now have __loader__ set even if they pre-exist the | |
| bootstrapping of importlib. | |
| - Issue #16979: Fix error handling bugs in the unicode-escape-decode decoder. | |
| - Issue #16772: The base argument to the int constructor no longer accepts | |
| floats, or other non-integer objects with an __int__ method. Objects | |
| with an __index__ method are now accepted. | |
| - Issue #10156: In the interpreter's initialization phase, unicode globals | |
| are now initialized dynamically as needed. | |
| - Issue #16980: Fix processing of escaped non-ascii bytes in the | |
| unicode-escape-decode decoder. | |
| - Issue #16975: Fix error handling bug in the escape-decode bytes decoder. | |
| - Issue #14850: Now a charmap decoder treats U+FFFE as "undefined mapping" | |
| in any mapping, not only in a string. | |
| - Issue #16613: Add *m* argument to ``collections.Chainmap.new_child`` to | |
| allow the new child map to be specified explicitly. | |
| - Issue #16730: importlib.machinery.FileFinder now no longer raises an | |
| exception when trying to populate its cache and it finds out the directory is | |
| unreadable or has turned into a file. Reported and diagnosed by | |
| David Pritchard. | |
| - Issue #16906: Fix a logic error that prevented most static strings from being | |
| cleared. | |
| - Issue #11461: Fix the incremental UTF-16 decoder. Original patch by | |
| Amaury Forgeot d'Arc. | |
| - Issue #16856: Fix a segmentation fault from calling repr() on a dict with | |
| a key whose repr raise an exception. | |
| - Issue #16367: Fix FileIO.readall() on Windows for files larger than 2 GB. | |
| - Issue #16761: Calling int() with base argument only now raises TypeError. | |
| - Issue #16759: Support the full DWORD (unsigned long) range in Reg2Py | |
| when retrieving a REG_DWORD value. This corrects functions like | |
| winreg.QueryValueEx that may have been returning truncated values. | |
| - Issue #14420: Support the full DWORD (unsigned long) range in Py2Reg | |
| when passed a REG_DWORD value. Fixes OverflowError in winreg.SetValueEx. | |
| - Issue #11939: Set the st_dev attribute of stat_result to allow Windows to | |
| take advantage of the os.path.samefile/sameopenfile/samestat implementations | |
| used by other platforms. | |
| - Issue #16772: The int() constructor's second argument (base) no longer | |
| accepts non integer values. Consistent with the behavior in Python 2. | |
| - Issue #14470: Remove w9xpopen support per PEP 11. | |
| - Issue #9856: Replace deprecation warning with raising TypeError | |
| in object.__format__. Patch by Florent Xicluna. | |
| - Issue #16597: In buffered and text IO, call close() on the underlying stream | |
| if invoking flush() fails. | |
| - Issue #16722: In the bytes() constructor, try to call __bytes__ on the | |
| argument before __index__. | |
| - Issue #16421: loading multiple modules from one shared object is now | |
| handled correctly (previously, the first module loaded from that file | |
| was silently returned). Patch by Václav Šmilauer. | |
| - Issue #16602: When a weakref's target was part of a long deallocation | |
| chain, the object could remain reachable through its weakref even though | |
| its refcount had dropped to zero. | |
| - Issue #16495: Remove extraneous NULL encoding check from bytes_decode(). | |
| - Issue #16619: Create NameConstant AST class to represent None, True, and False | |
| literals. As a result, these constants are never loaded at runtime from | |
| builtins. | |
| - Issue #16455: On FreeBSD and Solaris, if the locale is C, the | |
| ASCII/surrogateescape codec is now used (instead of the locale encoding) to | |
| decode the command line arguments. This change fixes inconsistencies with | |
| os.fsencode() and os.fsdecode(), because these operating systems announce an | |
| ASCII locale encoding, but actually use the ISO-8859-1 encoding in practice. | |
| - Issue #16562: Optimize dict equality testing. Patch by Serhiy Storchaka. | |
| - Issue #16588: Silence unused-but-set warnings in Python/thread_pthread | |
| - Issue #16592: stringlib_bytes_join doesn't raise MemoryError on allocation | |
| failure. | |
| - Issue #16546: Fix: ast.YieldFrom argument is now mandatory. | |
| - Issue #16514: Fix regression causing a traceback when sys.path[0] is None | |
| (actually, any non-string or non-bytes type). | |
| - Issue #16306: Fix multiple error messages when unknown command line | |
| parameters where passed to the interpreter. Patch by Hieu Nguyen. | |
| - Issue #16215: Fix potential double memory free in str.replace(). Patch | |
| by Serhiy Storchaka. | |
| - Issue #16290: A float return value from the __complex__ special method is no | |
| longer accepted in the complex() constructor. | |
| - Issue #16416: On Mac OS X, operating system data are now always | |
| encoded/decoded to/from UTF-8/surrogateescape, instead of the locale encoding | |
| (which may be ASCII if no locale environment variable is set), to avoid | |
| inconsistencies with os.fsencode() and os.fsdecode() functions which are | |
| already using UTF-8/surrogateescape. | |
| - Issue #16453: Fix equality testing of dead weakref objects. | |
| - Issue #9535: Fix pending signals that have been received but not yet | |
| handled by Python to not persist after os.fork() in the child process. | |
| - Issue #14794: Fix slice.indices to return correct results for huge values, | |
| rather than raising OverflowError. | |
| - Issue #15001: fix segfault on "del sys.modules['__main__']". Patch by Victor | |
| Stinner. | |
| - Issue #8271: the utf-8 decoder now outputs the correct number of U+FFFD | |
| characters when used with the 'replace' error handler on invalid utf-8 | |
| sequences. Patch by Serhiy Storchaka, tests by Ezio Melotti. | |
| - Issue #5765: Apply a hard recursion limit in the compiler instead of | |
| blowing the stack and segfaulting. Initial patch by Andrea Griffini. | |
| - Issue #16402: When slicing a range, fix shadowing of exceptions from | |
| __index__. | |
| - Issue #16336: fix input checking in the surrogatepass error handler. | |
| Patch by Serhiy Storchaka. | |
| - Issue #8401: assigning an int to a bytearray slice (e.g. b[3:4] = 5) now | |
| raises an error. | |
| - Issue #7317: Display full tracebacks when an error occurs asynchronously. | |
| Patch by Alon Horev with update by Alexey Kachayev. | |
| - Issue #16309: Make PYTHONPATH="" behavior the same as if PYTHONPATH | |
| not set at all. | |
| - Issue #10189: Improve the error reporting of SyntaxErrors related to global | |
| and nonlocal statements. | |
| - Fix segfaults on setting __qualname__ on builtin types and attempting to | |
| delete it on any type. | |
| - Issue #14625: Rewrite the UTF-32 decoder. It is now 3x to 4x faster. Patch | |
| written by Serhiy Storchaka. | |
| - Issue #16345: Fix an infinite loop when ``fromkeys`` on a dict subclass | |
| received a nonempty dict from the constructor. | |
| - Issue #16271: Fix strange bugs that resulted from __qualname__ appearing in a | |
| class's __dict__ and on type. | |
| - Issue #12805: Make bytes.join and bytearray.join faster when the separator | |
| is empty. Patch by Serhiy Storchaka. | |
| - Issue #6074: Ensure cached bytecode files can always be updated by the | |
| user that created them, even when the source file is read-only. | |
| - Issue #15958: bytes.join and bytearray.join now accept arbitrary buffer | |
| objects. | |
| - Issue #14783: Improve int() docstring and switch docstrings for str(), | |
| range(), and slice() to use multi-line signatures. | |
| - Issue #16160: Subclass support now works for types.SimpleNamespace. | |
| - Issue #16148: Implement PEP 424, adding operator.length_hint and | |
| PyObject_LengthHint. | |
| - Upgrade Unicode data (UCD) to version 6.2. | |
| - Issue #15379: Fix passing of non-BMP characters as integers for the charmap | |
| decoder (already working as unicode strings). Patch by Serhiy Storchaka. | |
| - Issue #15144: Fix possible integer overflow when handling pointers as integer | |
| values, by using `Py_uintptr_t` instead of `size_t`. Patch by Serhiy | |
| Storchaka. | |
| - Issue #15965: Explicitly cast `AT_FDCWD` as (int). Required on Solaris 10 | |
| (which defines `AT_FDCWD` as ``0xffd19553``), harmless on other platforms. | |
| - Issue #15839: Convert SystemErrors in `super()` to RuntimeErrors. | |
| - Issue #15448: Buffered IO now frees the buffer when closed, instead | |
| of when deallocating. | |
| - Issue #15846: Fix SystemError which happened when using `ast.parse()` in an | |
| exception handler on code with syntax errors. | |
| - Issue #15897: zipimport.c doesn't check return value of fseek(). | |
| Patch by Felipe Cruz. | |
| - Issue #15801: Make sure mappings passed to '%' formatting are actually | |
| subscriptable. | |
| - Issue #15111: __import__ should propagate ImportError when raised as a | |
| side-effect of a module triggered from using fromlist. | |
| - Issue #15022: Add pickle and comparison support to types.SimpleNamespace. | |
| Library | |
| ------- | |
| - Issue #4331: Added functools.partialmethod (Initial patch by Alon Horev) | |
| - Issue #13461: Fix a crash in the TextIOWrapper.tell method on 64-bit | |
| platforms. Patch by Yogesh Chaudhari. | |
| - Issue #18681: Fix a NameError in importlib.reload() (noticed by Weizhao Li). | |
| - Issue #14323: Expanded the number of digits in the coefficients for the | |
| RGB -- YIQ conversions so that they match the FCC NTSC versions. | |
| - Issue #17998: Fix an internal error in regular expression engine. | |
| - Issue #17557: Fix os.getgroups() to work with the modified behavior of | |
| getgroups(2) on OS X 10.8. Original patch by Mateusz Lenik. | |
| - Issue #18608: Avoid keeping a strong reference to the locale module | |
| inside the _io module. | |
| - Issue #18619: Fix atexit leaking callbacks registered from sub-interpreters, | |
| and make it GC-aware. | |
| - Issue #15699: The readline module now uses PEP 3121-style module | |
| initialization, so as to reclaim allocated resources (Python callbacks) | |
| at shutdown. Original patch by Robin Schreiber. | |
| - Issue #17616: wave.open now supports the context management protocol. | |
| - Issue #18599: Fix name attribute of _sha1.sha1() object. It now returns | |
| 'SHA1' instead of 'SHA'. | |
| - Issue #13266: Added inspect.unwrap to easily unravel __wrapped__ chains | |
| (initial patch by Daniel Urban and Aaron Iles) | |
| - Issue #18561: Skip name in ctypes' _build_callargs() if name is NULL. | |
| - Issue #18559: Fix NULL pointer dereference error in _pickle module | |
| - Issue #18556: Check the return type of PyUnicode_AsWideChar() in ctype's | |
| U_set(). | |
| - Issue #17818: aifc.getparams now returns a namedtuple. | |
| - Issue #18549: Eliminate dead code in socket_ntohl() | |
| - Issue #18530: Remove additional stat call from posixpath.ismount. | |
| Patch by Alex Gaynor. | |
| - Issue #18514: Fix unreachable Py_DECREF() call in PyCData_FromBaseObj() | |
| - Issue #9177: Calling read() or write() now raises ValueError, not | |
| AttributeError, on a closed SSL socket. Patch by Senko Rasic. | |
| - Issue #18513: Fix behaviour of cmath.rect w.r.t. signed zeros on OS X 10.8 + | |
| gcc. | |
| - Issue #18479: Changed venv Activate.ps1 to make deactivate a function, and | |
| removed Deactivate.ps1. | |
| - Issue #18480: Add missing call to PyType_Ready to the _elementtree extension. | |
| - Issue #17778: Fix test discovery for test_multiprocessing. (Patch by | |
| Zachary Ware.) | |
| - Issue #18393: The private module _gestalt and private functions | |
| platform._mac_ver_gestalt, platform._mac_ver_lookup and | |
| platform._bcd2str have been removed. This does not affect the public | |
| interface of the platform module. | |
| - Issue #17482: functools.update_wrapper (and functools.wraps) now set the | |
| __wrapped__ attribute correctly even if the underlying function has a | |
| __wrapped__ attribute set. | |
| - Issue #18431: The new email header parser now decodes RFC2047 encoded words | |
| in structured headers. | |
| - Issue #18432: The sched module's queue method was incorrectly returning | |
| an iterator instead of a list. | |
| - Issue #18044: The new email header parser was mis-parsing encoded words where | |
| an encoded character immediately followed the '?' that follows the CTE | |
| character, resulting in a decoding failure. They are now decoded correctly. | |
| - Issue #18101: Tcl.split() now process strings nested in a tuple as it | |
| do with byte strings. | |
| - Issue #18116: getpass was always getting an error when testing /dev/tty, | |
| and thus was always falling back to stdin, and would then raise an exception | |
| if stdin could not be used (such as /dev/null). It also leaked an open file. | |
| All of these issues are now fixed. | |
| - Issue #17198: Fix a NameError in the dbm module. Patch by Valentina | |
| Mukhamedzhanova. | |
| - Issue #18013: Fix cgi.FieldStorage to parse the W3C sample form. | |
| - Issue #18020: improve html.escape speed by an order of magnitude. | |
| Patch by Matt Bryant. | |
| - Issue #18347: ElementTree's html serializer now preserves the case of | |
| closing tags. | |
| - Issue #17261: Ensure multiprocessing's proxies use proper address. | |
| - Issue #18343: faulthandler.register() now keeps the previous signal handler | |
| when the function is called twice, so faulthandler.unregister() restores | |
| correctly the original signal handler. | |
| - Issue #17097: Make multiprocessing ignore EINTR. | |
| - Issue #18339: Negative ints keys in unpickler.memo dict no longer cause a | |
| segfault inside the _pickle C extension. | |
| - Issue #18240: The HMAC module is no longer restricted to bytes and accepts | |
| any bytes-like object, e.g. memoryview. Original patch by Jonas Borgström. | |
| - Issue #18224: Removed pydoc script from created venv, as it causes problems | |
| on Windows and adds no value over and above python -m pydoc ... | |
| - Issue #18155: The csv module now correctly handles csv files that use | |
| a delimiter character that has a special meaning in regexes, instead of | |
| throwing an exception. | |
| - Issue #14360: encode_quopri can now be successfully used as an encoder | |
| when constructing a MIMEApplication object. | |
| - Issue #11390: Add -o and -f command line options to the doctest CLI to | |
| specify doctest options (and convert it to using argparse). | |
| - Issue #18135: ssl.SSLSocket.write() now raises an OverflowError if the input | |
| string in longer than 2 gigabytes, and ssl.SSLContext.load_cert_chain() | |
| raises a ValueError if the password is longer than 2 gigabytes. The ssl | |
| module does not support partial write. | |
| - Issue #11016: Add C implementation of the stat module as _stat. | |
| - Issue #18248: Fix libffi build on AIX. | |
| - Issue #18259: Declare sethostname in socketmodule.c for AIX | |
| - Issue #18147: Add diagnostic functions to ssl.SSLContext(). get_ca_list() | |
| lists all loaded CA certificates and cert_store_stats() returns amount of | |
| loaded X.509 certs, X.509 CA certs and CRLs. | |
| - Issue #18167: cgi.FieldStorage no longer fails to handle multipart/form-data | |
| when ``\r\n`` appears at end of 65535 bytes without other newlines. | |
| - Issue #18076: Introduce importlib.util.decode_source(). | |
| - Issue #18357: add tests for dictview set difference. | |
| Patch by Fraser Tweedale. | |
| - importlib.abc.SourceLoader.get_source() no longer changes SyntaxError or | |
| UnicodeDecodeError into ImportError. | |
| - Issue #18058, 18057: Make the namespace package loader meet the | |
| importlib.abc.InspectLoader ABC, allowing for namespace packages to work with | |
| runpy. | |
| - Issue #17177: The imp module is pending deprecation. | |
| - subprocess: Prevent a possible double close of parent pipe fds when the | |
| subprocess exec runs into an error. Prevent a regular multi-close of the | |
| /dev/null fd when any of stdin, stdout and stderr was set to DEVNULL. | |
| - Issue #18194: Introduce importlib.util.cache_from_source() and | |
| source_from_cache() while documenting the equivalent functions in imp as | |
| deprecated. | |
| - Issue #17907: Document imp.new_module() as deprecated in favour of | |
| types.ModuleType. | |
| - Issue #18192: Introduce importlib.util.MAGIC_NUMBER and document as deprecated | |
| imp.get_magic(). | |
| - Issue #18149: Add filecmp.clear_cache() to manually clear the filecmp cache. | |
| Patch by Mark Levitt | |
| - Issue #18193: Add importlib.reload(). | |
| - Issue #18157: Stop using imp.load_module() in pydoc. | |
| - Issue #16102: Make uuid._netbios_getnode() work again on Python 3. | |
| - Issue #17134: Add ssl.enum_cert_store() as interface to Windows' cert store. | |
| - Issue #18143: Implement ssl.get_default_verify_paths() in order to debug | |
| the default locations for cafile and capath. | |
| - Issue #17314: Move multiprocessing.forking over to importlib. | |
| - Issue #11959: SMTPServer and SMTPChannel now take an optional map, use of | |
| which avoids affecting global state. | |
| - Issue #18109: os.uname() now decodes fields from the locale encoding, and | |
| socket.gethostname() now decodes the hostname from the locale encoding, | |
| instead of using the UTF-8 encoding in strict mode. | |
| - Issue #18089: Implement importlib.abc.InspectLoader.load_module. | |
| - Issue #18088: Introduce importlib.abc.Loader.init_module_attrs for setting | |
| module attributes. Leads to the pending deprecation of | |
| importlib.util.module_for_loader. | |
| - Issue #17403: urllib.parse.robotparser normalizes the urls before adding to | |
| ruleline. This helps in handling certain types invalid urls in a conservative | |
| manner. Patch contributed by Mher Movsisyan. | |
| - Issue #18070: Have importlib.util.module_for_loader() set attributes | |
| unconditionally in order to properly support reloading. | |
| - Added importlib.util.module_to_load to return a context manager to provide the | |
| proper module object to load. | |
| - Issue #18025: Fixed a segfault in io.BufferedIOBase.readinto() when raw | |
| stream's read() returns more bytes than requested. | |
| - Issue #18011: As was originally intended, base64.b32decode() now raises a | |
| binascii.Error if there are non-b32-alphabet characters present in the input | |
| string, instead of a TypeError. | |
| - Issue #18072: Implement importlib.abc.InspectLoader.get_code() and | |
| importlib.abc.ExecutionLoader.get_code(). | |
| - Issue #8240: Set the SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER flag on SSL | |
| sockets. | |
| - Issue #17269: Workaround for socket.getaddrinfo crash on MacOS X | |
| with port None or "0" and flags AI_NUMERICSERV. | |
| - Issue #16986: ElementTree now correctly works with string input when the | |
| internal XML encoding is not UTF-8 or US-ASCII. | |
| - Issue #17996: socket module now exposes AF_LINK constant on BSD and OSX. | |
| - Issue #17900: Allowed pickling of recursive OrderedDicts. Decreased pickled | |
| size and pickling time. | |
| - Issue #17914: Add os.cpu_count(). Patch by Yogesh Chaudhari, based on an | |
| initial patch by Trent Nelson. | |
| - Issue #17812: Fixed quadratic complexity of base64.b32encode(). | |
| Optimize base64.b32encode() and base64.b32decode() (speed up to 3x). | |
| - Issue #17980: Fix possible abuse of ssl.match_hostname() for denial of | |
| service using certificates with many wildcards (CVE-2013-2099). | |
| - Issue #15758: Fix FileIO.readall() so it no longer has O(n**2) complexity. | |
| - Issue #14596: The struct.Struct() objects now use a more compact | |
| implementation. | |
| - Issue #17981: logging's SysLogHandler now closes the socket when it catches | |
| socket OSErrors. | |
| - Issue #17964: Fix os.sysconf(): the return type of the C sysconf() function | |
| is long, not int. | |
| - Fix typos in the multiprocessing module. | |
| - Issue #17754: Make ctypes.util.find_library() independent of the locale. | |
| - Issue #17968: Fix memory leak in os.listxattr(). | |
| - Issue #17606: Fixed support of encoded byte strings in the XMLGenerator | |
| characters() and ignorableWhitespace() methods. Original patch by Sebastian | |
| Ortiz Vasquez. | |
| - Issue #17732: Ignore distutils.cfg options pertaining to install paths if a | |
| virtual environment is active. | |
| - Issue #17915: Fix interoperability of xml.sax with file objects returned by | |
| codecs.open(). | |
| - Issue #16601: Restarting iteration over tarfile really restarts rather | |
| than continuing from where it left off. Patch by Michael Birtwell. | |
| - Issue #17289: The readline module now plays nicer with external modules | |
| or applications changing the rl_completer_word_break_characters global | |
| variable. Initial patch by Bradley Froehle. | |
| - Issue #12181: select module: Fix struct kevent definition on OpenBSD 64-bit | |
| platforms. Patch by Federico Schwindt. | |
| - Issue #11816: multiple improvements to the dis module: get_instructions | |
| generator, ability to redirect output to a file, Bytecode and Instruction | |
| abstractions. Patch by Nick Coghlan, Ryan Kelly and Thomas Kluyver. | |
| - Issue #13831: Embed stringification of remote traceback in local | |
| traceback raised when pool task raises an exception. | |
| - Issue #15528: Add weakref.finalize to support finalization using | |
| weakref callbacks. | |
| - Issue #14173: Avoid crashing when reading a signal handler during | |
| interpreter shutdown. | |
| - Issue #15902: Fix imp.load_module() accepting None as a file when loading an | |
| extension module. | |
| - Issue #13721: SSLSocket.getpeercert() and SSLSocket.do_handshake() now | |
| raise an OSError with ENOTCONN, instead of an AttributeError, when the | |
| SSLSocket is not connected. | |
| - Issue #14679: add an __all__ (that contains only HTMLParser) to html.parser. | |
| - Issue #17802: Fix an UnboundLocalError in html.parser. Initial tests by | |
| Thomas Barlow. | |
| - Issue #17358: Modules loaded by imp.load_source() and load_compiled() (and by | |
| extension load_module()) now have a better chance of working when reloaded. | |
| - Issue #17804: New function ``struct.iter_unpack`` allows for streaming | |
| struct unpacking. | |
| - Issue #17830: When keyword.py is used to update a keyword file, it now | |
| preserves the line endings of the original file. | |
| - Issue #17272: Making the urllib.request's Request.full_url a descriptor. | |
| Fixes bugs with assignment to full_url. Patch by Demian Brecht. | |
| - Issue #17353: Plistlib emitted empty data tags with deeply nested datastructures | |
| - Issue #11714: Use 'with' statements to assure a Semaphore releases a | |
| condition variable. Original patch by Thomas Rachel. | |
| - Issue #16624: `subprocess.check_output` now accepts an `input` argument, | |
| allowing the subprocess's stdin to be provided as a (byte) string. | |
| Patch by Zack Weinberg. | |
| - Issue #17795: Reverted backwards-incompatible change in SysLogHandler with | |
| Unix domain sockets. | |
| - Issue #16694: Add a pure Python implementation of the operator module. | |
| Patch by Zachary Ware. | |
| - Issue #11182: remove the unused and undocumented pydoc.Scanner class. | |
| Patch by Martin Morrison. | |
| - Issue #17741: Add ElementTree.XMLPullParser, an event-driven parser for | |
| non-blocking applications. | |
| - Issue #17555: Fix ForkAwareThreadLock so that size of after fork | |
| registry does not grow exponentially with generation of process. | |
| - Issue #17707: fix regression in multiprocessing.Queue's get() method where | |
| it did not block for short timeouts. | |
| - Issue #17720: Fix the Python implementation of pickle.Unpickler to correctly | |
| process the APPENDS opcode when it is used on non-list objects. | |
| - Issue #17012: shutil.which() no longer falls back to the PATH environment | |
| variable if an empty path argument is specified. Patch by Serhiy Storchaka. | |
| - Issue #17710: Fix pickle raising a SystemError on bogus input. | |
| - Issue #17341: Include the invalid name in the error messages from re about | |
| invalid group names. | |
| - Issue #17702: os.environ now raises KeyError with the original environment | |
| variable name (str on UNIX), instead of using the encoded name (bytes on | |
| UNIX). | |
| - Issue #16163: Make the importlib based version of pkgutil.iter_importers | |
| work for submodules. Initial patch by Berker Peksag. | |
| - Issue #16804: Fix a bug in the 'site' module that caused running | |
| 'python -S -m site' to incorrectly throw an exception. | |
| - Issue #15480: Remove the deprecated and unused TYPE_INT64 code from marshal. | |
| Initial patch by Daniel Riti. | |
| - Issue #2118: SMTPException is now a subclass of OSError. | |
| - Issue #17016: Get rid of possible pointer wraparounds and integer overflows | |
| in the re module. Patch by Nickolai Zeldovich. | |
| - Issue #16658: add missing return to HTTPConnection.send(). | |
| Patch by Jeff Knupp. | |
| - Issue #9556: the logging package now allows specifying a time-of-day for a | |
| TimedRotatingFileHandler to rotate. | |
| - Issue #14971: unittest test discovery no longer gets confused when a function | |
| has a different __name__ than its name in the TestCase class dictionary. | |
| - Issue #17487: The wave getparams method now returns a namedtuple rather than | |
| a plain tuple. | |
| - Issue #17675: socket repr() provides local and remote addresses (if any). | |
| Patch by Giampaolo Rodola' | |
| - Issue #17093: Make the ABCs in importlib.abc provide default values or raise | |
| reasonable exceptions for their methods to make them more amenable to super() | |
| calls. | |
| - Issue #17566: Make importlib.abc.Loader.module_repr() optional instead of an | |
| abstractmethod; now it raises NotImplementedError so as to be ignored by default. | |
| - Issue #17678: Remove the use of deprecated method in http/cookiejar.py by | |
| changing the call to get_origin_req_host() to origin_req_host. | |
| - Issue #17666: Fix reading gzip files with an extra field. | |
| - Issue #16475: Support object instancing, recursion and interned strings | |
| in marshal | |
| - Issue #17502: Process DEFAULT values in mock side_effect that returns iterator. | |
| - Issue #16795: On the ast.arguments object, unify vararg with varargannotation | |
| and kwarg and kwargannotation. Change the column offset of ast.Attribute to be | |
| at the attribute name. | |
| - Issue #17434: Properly raise a SyntaxError when a string occurs between future | |
| imports. | |
| - Issue #17117: Import and @importlib.util.set_loader now set __loader__ when | |
| it has a value of None or the attribute doesn't exist. | |
| - Issue #17032: The "global" in the "NameError: global name 'x' is not defined" | |
| error message has been removed. Patch by Ram Rachum. | |
| - Issue #18080: When building a C extension module on OS X, if the compiler | |
| is overridden with the CC environment variable, use the new compiler as | |
| the default for linking if LDSHARED is not also overridden. This restores | |
| Distutils behavior introduced in 3.2.3 and inadvertently dropped in 3.3.0. | |
| - Issue #18113: Fixed a refcount leak in the curses.panel module's | |
| set_userptr() method. Reported by Atsuo Ishimoto. | |
| - Implement PEP 443 "Single-dispatch generic functions". | |
| - Implement PEP 435 "Adding an Enum type to the Python standard library". | |
| - Issue #15596: Faster pickling of unicode strings. | |
| - Issue #17572: Avoid chained exceptions when passing bad directives to | |
| time.strptime(). Initial patch by Claudiu Popa. | |
| - Issue #17435: threading.Timer's __init__ method no longer uses mutable | |
| default values for the args and kwargs parameters. | |
| - Issue #17526: fix an IndexError raised while passing code without filename to | |
| inspect.findsource(). Initial patch by Tyler Doyle. | |
| - Issue #17540: Added style parameter to logging formatter configuration by dict. | |
| - Issue #16692: The ssl module now supports TLS 1.1 and TLS 1.2. Initial | |
| patch by Michele Orrù. | |
| - Issue #17025: multiprocessing: Reduce Queue and SimpleQueue contention. | |
| - Issue #17536: Add to webbrowser's browser list: www-browser, x-www-browser, | |
| iceweasel, iceape. | |
| - Issue #17150: pprint now uses line continuations to wrap long string | |
| literals. | |
| - Issue #17488: Change the subprocess.Popen bufsize parameter default value | |
| from unbuffered (0) to buffering (-1) to match the behavior existing code | |
| expects and match the behavior of the subprocess module in Python 2 to avoid | |
| introducing hard to track down bugs. | |
| - Issue #17521: Corrected non-enabling of logger following two calls to | |
| fileConfig(). | |
| - Issue #17508: Corrected logging MemoryHandler configuration in dictConfig() | |
| where the target handler wasn't configured first. | |
| - Issue #17209: curses.window.get_wch() now correctly handles KeyboardInterrupt | |
| (CTRL+c). | |
| - Issue #5713: smtplib now handles 421 (closing connection) error codes when | |
| sending mail by closing the socket and reporting the 421 error code via the | |
| exception appropriate to the command that received the error response. | |
| - Issue #16997: unittest.TestCase now provides a subTest() context manager | |
| to procedurally generate, in an easy way, small test instances. | |
| - Issue #17485: Also delete the Request Content-Length header if the data | |
| attribute is deleted. (Follow on to issue Issue #16464). | |
| - Issue #15927: CVS now correctly parses escaped newlines and carriage | |
| when parsing with quoting turned off. | |
| - Issue #17467: add readline and readlines support to mock_open in | |
| unittest.mock. | |
| - Issue #13248: removed deprecated and undocumented difflib.isbjunk, | |
| isbpopular. | |
| - Issue #17192: Update the ctypes module's libffi to v3.0.13. This | |
| specifically addresses a stack misalignment issue on x86 and issues on | |
| some more recent platforms. | |
| - Issue #8862: Fixed curses cleanup when getkey is interrupted by a signal. | |
| - Issue #17443: imaplib.IMAP4_stream was using the default unbuffered IO | |
| in subprocess, but the imap code assumes buffered IO. In Python2 this | |
| worked by accident. IMAP4_stream now explicitly uses buffered IO. | |
| - Issue #17476: Fixed regression relative to Python2 in undocumented pydoc | |
| 'allmethods'; it was missing unbound methods on the class. | |
| - Issue #17474: Remove the deprecated methods of Request class. | |
| - Issue #16709: unittest discover order is no-longer filesystem specific. Patch | |
| by Jeff Ramnani. | |
| - Use the HTTPS PyPI url for upload, overriding any plain HTTP URL in pypirc. | |
| - Issue #5024: sndhdr.whichhdr now returns the frame count for WAV files | |
| rather than -1. | |
| - Issue #17460: Remove the strict argument of HTTPConnection and removing the | |
| DeprecationWarning being issued from 3.2 onwards. | |
| - Issue #16880: Do not assume _imp.load_dynamic() is defined in the imp module. | |
| - Issue #16389: Fixed a performance regression relative to Python 3.1 in the | |
| caching of compiled regular expressions. | |
| - Added missing FeedParser and BytesFeedParser to email.parser.__all__. | |
| - Issue #17431: Fix missing import of BytesFeedParser in email.parser. | |
| - Issue #12921: http.server's send_error takes an explain argument to send more | |
| information in response. Patch contributed by Karl. | |
| - Issue #17414: Add timeit, repeat, and default_timer to timeit.__all__. | |
| - Issue #1285086: Get rid of the refcounting hack and speed up | |
| urllib.parse.unquote() and urllib.parse.unquote_to_bytes(). | |
| - Issue #17099: Have importlib.find_loader() raise ValueError when __loader__ | |
| is not set, harmonizing with what happens when the attribute is set to None. | |
| - Expose the O_PATH constant in the os module if it is available. | |
| - Issue #17368: Fix an off-by-one error in the Python JSON decoder that caused | |
| a failure while decoding empty object literals when object_pairs_hook was | |
| specified. | |
| - Issue #17385: Fix quadratic behavior in threading.Condition. The FIFO | |
| queue now uses a deque instead of a list. | |
| - Issue #15806: Add contextlib.ignore(). This creates a context manager to | |
| ignore specified exceptions, replacing the "except SomeException: pass" idiom. | |
| - Issue #14645: The email generator classes now produce output using the | |
| specified linesep throughout. Previously if the prolog, epilog, or | |
| body were stored with a different linesep, that linesep was used. This | |
| fix corrects an RFC non-compliance issue with smtplib.send_message. | |
| - Issue #17278: Fix a crash in heapq.heappush() and heapq.heappop() when | |
| the list is being resized concurrently. | |
| - Issue #16962: Use getdents64 instead of the obsolete getdents syscall | |
| in the subprocess module on Linux. | |
| - Issue #16935: unittest now counts the module as skipped if it raises SkipTest, | |
| instead of counting it as an error. Patch by Zachary Ware. | |
| - Issue #17018: Make Process.join() retry if os.waitpid() fails with EINTR. | |
| - Issue #17223: array module: Fix a crasher when converting an array containing | |
| invalid characters (outside range [U+0000; U+10ffff]) to Unicode: | |
| repr(array), str(array) and array.tounicode(). Patch written by Manuel Jacob. | |
| - Issue #17197: profile/cProfile modules refactored so that code of run() and | |
| runctx() utility functions is not duplicated in both modules. | |
| - Issue #14720: sqlite3: Convert datetime microseconds correctly. | |
| Patch by Lowe Thiderman. | |
| - Issue #15132: Allow a list for the defaultTest argument of | |
| unittest.TestProgram. Patch by Jyrki Pulliainen. | |
| - Issue #17225: JSON decoder now counts columns in the first line starting | |
| with 1, as in other lines. | |
| - Issue #6623: Added explicit DeprecationWarning for ftplib.netrc, which has | |
| been deprecated and undocumented for a long time. | |
| - Issue #13700: Fix byte/string handling in imaplib authentication when an | |
| authobject is specified. | |
| - Issue #13153: Tkinter functions now raise TclError instead of ValueError when | |
| a string argument contains non-BMP character. | |
| - Issue #9669: Protect re against infinite loops on zero-width matching in | |
| non-greedy repeat. Patch by Matthew Barnett. | |
| - Issue #13169: The maximal repetition number in a regular expression has been | |
| increased from 65534 to 2147483647 (on 32-bit platform) or 4294967294 (on | |
| 64-bit). | |
| - Issue #17143: Fix a missing import in the trace module. Initial patch by | |
| Berker Peksag. | |
| - Issue #15220: email.feedparser's line splitting algorithm is now simpler and | |
| faster. | |
| - Issue #16743: Fix mmap overflow check on 32 bit Windows. | |
| - Issue #16996: webbrowser module now uses shutil.which() to find a | |
| web-browser on the executable search path. | |
| - Issue #16800: tempfile.gettempdir() no longer left temporary files when | |
| the disk is full. Original patch by Amir Szekely. | |
| - Issue #17192: Import libffi-3.0.12. | |
| - Issue #16564: Fixed regression relative to Python2 in the operation of | |
| email.encoders.encode_7or8bit when used with binary data. | |
| - Issue #17052: unittest discovery should use self.testLoader. | |
| - Issue #4591: Uid and gid values larger than 2**31 are supported now. | |
| - Issue #17141: random.vonmisesvariate() no longer hangs for large kappas. | |
| - Issue #17149: Fix random.vonmisesvariate to always return results in | |
| [0, 2*math.pi]. | |
| - Issue #1470548: XMLGenerator now works with binary output streams. | |
| - Issue #6975: os.path.realpath() now correctly resolves multiple nested | |
| symlinks on POSIX platforms. | |
| - Issue #13773: sqlite3.connect() gets a new `uri` parameter to pass the | |
| filename as a URI, allowing to pass custom options. | |
| - Issue #16564: Fixed regression relative to Python2 in the operation of | |
| email.encoders.encode_noop when used with binary data. | |
| - Issue #10355: The mode, name, encoding and newlines properties now work on | |
| SpooledTemporaryFile objects even when they have not yet rolled over. | |
| Obsolete method xreadline (which has never worked in Python 3) has been | |
| removed. | |
| - Issue #16686: Fixed a lot of bugs in audioop module. Fixed crashes in | |
| avgpp(), maxpp() and ratecv(). Fixed an integer overflow in add(), bias(), | |
| and ratecv(). reverse(), lin2lin() and ratecv() no more lose precision for | |
| 32-bit samples. max() and rms() no more returns a negative result and | |
| various other functions now work correctly with 32-bit sample -0x80000000. | |
| - Issue #17073: Fix some integer overflows in sqlite3 module. | |
| - Issue #16723: httplib.HTTPResponse no longer marked closed when the connection | |
| is automatically closed. | |
| - Issue #15359: Add CAN_BCM protocol support to the socket module. Patch by | |
| Brian Thorne. | |
| - Issue #16948: Fix quoted printable body encoding for non-latin1 character | |
| sets in the email package. | |
| - Issue #16811: Fix folding of headers with no value in the provisional email | |
| policies. | |
| - Issue #17132: Update symbol for "yield from" grammar changes. | |
| - Issue #17076: Make copying of xattrs more tolerant of missing FS support. | |
| Patch by Thomas Wouters. | |
| - Issue #17089: Expat parser now correctly works with string input when the | |
| internal XML encoding is not UTF-8 or US-ASCII. It also now accepts bytes | |
| and strings larger than 2 GiB. | |
| - Issue #6083: Fix multiple segmentation faults occurred when PyArg_ParseTuple | |
| parses nested mutating sequence. | |
| - Issue #5289: Fix ctypes.util.find_library on Solaris. | |
| - Issue #17106: Fix a segmentation fault in io.TextIOWrapper when an underlying | |
| stream or a decoder produces data of an unexpected type (i.e. when | |
| io.TextIOWrapper initialized with text stream or use bytes-to-bytes codec). | |
| - Issue #17015: When it has a spec, a Mock object now inspects its signature | |
| when matching calls, so that arguments can be matched positionally or | |
| by name. | |
| - Issue #15633: httplib.HTTPResponse is now mark closed when the server | |
| sends less than the advertised Content-Length. | |
| - Issue #12268: The io module file object write methods no longer abort early | |
| when one of its write system calls is interrupted (EINTR). | |
| - Issue #6972: The zipfile module no longer overwrites files outside of | |
| its destination path when extracting malicious zip files. | |
| - Issue #4844: ZipFile now raises BadZipFile when opens a ZIP file with an | |
| incomplete "End of Central Directory" record. Original patch by Guilherme | |
| Polo and Alan McIntyre. | |
| - Issue #17071: Signature.bind() now works when one of the keyword arguments | |
| is named ``self``. | |
| - Issue #12004: Fix an internal error in PyZipFile when writing an invalid | |
| Python file. Patch by Ben Morgan. | |
| - Have py_compile use importlib as much as possible to avoid code duplication. | |
| Code now raises FileExistsError if the file path to be used for the | |
| byte-compiled file is a symlink or non-regular file as a warning that import | |
| will not keep the file path type if it writes to that path. | |
| - Issue #16972: Have site.addpackage() consider already known paths even when | |
| none are explicitly passed in. Bug report and fix by Kirill. | |
| - Issue #1602133: on Mac OS X a shared library build (``--enable-shared``) | |
| now fills the ``os.environ`` variable correctly. | |
| - Issue #15505: `unittest.installHandler` no longer assumes SIGINT handler is | |
| set to a callable object. | |
| - Issue #13454: Fix a crash when deleting an iterator created by itertools.tee() | |
| if all other iterators were very advanced before. | |
| - Issue #12411: Fix to cgi.parse_multipart to correctly use bytes boundaries | |
| and bytes data. Patch by Jonas Wagner. | |
| - Issue #16957: shutil.which() no longer searches a bare file name in the | |
| current directory on Unix and no longer searches a relative file path with | |
| a directory part in PATH directories. Patch by Thomas Kluyver. | |
| - Issue #1159051: GzipFile now raises EOFError when reading a corrupted file | |
| with truncated header or footer. | |
| - Issue #16993: shutil.which() now preserves the case of the path and extension | |
| on Windows. | |
| - Issue #16992: On Windows in signal.set_wakeup_fd, validate the file | |
| descriptor argument. | |
| - Issue #16422: For compatibility with the Python version, the C version of | |
| decimal now uses strings instead of integers for rounding mode constants. | |
| - Issue #15861: tkinter now correctly works with lists and tuples containing | |
| strings with whitespaces, backslashes or unbalanced braces. | |
| - Issue #9720: zipfile now writes correct local headers for files larger than | |
| 4 GiB. | |
| - Issue #16955: Fix the poll() method for multiprocessing's socket | |
| connections on Windows. | |
| - SSLContext.load_dh_params() now properly closes the input file. | |
| - Issue #15031: Refactor some .pyc management code to cut down on code | |
| duplication. Thanks to Ronan Lamy for the report and taking an initial stab | |
| at the problem. | |
| - Issue #16398: Optimize deque.rotate() so that it only moves pointers | |
| and doesn't touch the underlying data with increfs and decrefs. | |
| - Issue #16900: Issue a ResourceWarning when an ssl socket is left unclosed. | |
| - Issue #13899: ``\A``, ``\Z``, and ``\B`` now correctly match the A, Z, | |
| and B literals when used inside character classes (e.g. ``'[\A]'``). | |
| Patch by Matthew Barnett. | |
| - Issue #15545: Fix regression in sqlite3's iterdump method where it was | |
| failing if the connection used a row factory (such as sqlite3.Row) that | |
| produced unsortable objects. (Regression was introduced by fix for 9750). | |
| - fcntl: add F_DUPFD_CLOEXEC constant, available on Linux 2.6.24+. | |
| - Issue #15972: Fix error messages when os functions expecting a file name or | |
| file descriptor receive the incorrect type. | |
| - Issue #8109: The ssl module now has support for server-side SNI, thanks | |
| to a :meth:`SSLContext.set_servername_callback` method. Patch by Daniel | |
| Black. | |
| - Issue #16860: In tempfile, use O_CLOEXEC when available to set the | |
| close-on-exec flag atomically. | |
| - Issue #16674: random.getrandbits() is now 20-40% faster for small integers. | |
| - Issue #16009: JSON error messages now provide more information. | |
| - Issue #16828: Fix error incorrectly raised by bz2.compress(b'') and | |
| bz2.BZ2Compressor.compress(b''). Initial patch by Martin Packman. | |
| - Issue #16833: In http.client.HTTPConnection, do not concatenate the request | |
| headers and body when the payload exceeds 16 KB, since it can consume more | |
| memory for no benefit. Patch by Benno Leslie. | |
| - Issue #16541: tk_setPalette() now works with keyword arguments. | |
| - Issue #16820: In configparser, `parser.popitem()` no longer raises ValueError. | |
| This makes `parser.clean()` work correctly. | |
| - Issue #16820: In configparser, ``parser['section'] = {}`` now preserves | |
| section order within the parser. This makes `parser.update()` preserve section | |
| order as well. | |
| - Issue #16820: In configparser, ``parser['DEFAULT'] = {}`` now correctly | |
| clears previous values stored in the default section. Same goes for | |
| ``parser.update({'DEFAULT': {}})``. | |
| - Issue #9586: Redefine SEM_FAILED on MacOSX to keep compiler happy. | |
| - Issue #16787: Increase asyncore and asynchat default output buffers size, to | |
| decrease CPU usage and increase throughput. | |
| - Issue #10527: make multiprocessing use poll() instead of select() if available. | |
| - Issue #16688: Now regexes contained backreferences correctly work with | |
| non-ASCII strings. Patch by Matthew Barnett. | |
| - Issue #16486: Make aifc files act as context managers. | |
| - Issue #16485: Now file descriptors are closed if file header patching failed | |
| on closing an aifc file. | |
| - Issue #16640: Run less code under a lock in sched module. | |
| - Issue #16165: sched.scheduler.run() no longer blocks a scheduler for other | |
| threads. | |
| - Issue #16641: Default values of sched.scheduler.enter() are no longer | |
| modifiable. | |
| - Issue #16618: Make glob.glob match consistently across strings and bytes | |
| regarding leading dots. Patch by Serhiy Storchaka. | |
| - Issue #16788: Add samestat to Lib/ntpath.py | |
| - Issue #16713: Parsing of 'tel' urls using urlparse separates params from | |
| path. | |
| - Issue #16443: Add docstrings to regular expression match objects. | |
| Patch by Anton Kasyanov. | |
| - Issue #15701: Fix HTTPError info method call to return the headers information. | |
| - Issue #16752: Add a missing import to modulefinder. Patch by Berker Peksag. | |
| - Issue #16646: ftplib.FTP.makeport() might lose socket error details. | |
| (patch by Serhiy Storchaka) | |
| - Issue #16626: Fix infinite recursion in glob.glob() on Windows when the | |
| pattern contains a wildcard in the drive or UNC path. Patch by Serhiy | |
| Storchaka. | |
| - Issue #15783: Except for the number methods, the C version of decimal now | |
| supports all None default values present in decimal.py. These values were | |
| largely undocumented. | |
| - Issue #11175: argparse.FileType now accepts encoding and errors | |
| arguments. Patch by Lucas Maystre. | |
| - Issue #16488: epoll() objects now support the `with` statement. Patch | |
| by Serhiy Storchaka. | |
| - Issue #16298: In HTTPResponse.read(), close the socket when there is no | |
| Content-Length and the incoming stream is finished. Patch by Eran | |
| Rundstein. | |
| - Issue #16049: Add abc.ABC class to enable the use of inheritance to create | |
| ABCs, rather than the more cumbersome metaclass=ABCMeta. Patch by Bruno | |
| Dupuis. | |
| - Expose the TCP_FASTOPEN and MSG_FASTOPEN flags in socket when they're | |
| available. | |
| - Issue #15701: Add a .headers attribute to urllib.error.HTTPError. Patch | |
| contributed by Berker Peksag. | |
| - Issue #15872: Fix 3.3 regression introduced by the new fd-based shutil.rmtree | |
| that caused it to not ignore certain errors when ignore_errors was set. | |
| Patch by Alessandro Moura and Serhiy Storchaka. | |
| - Issue #16248: Disable code execution from the user's home directory by | |
| tkinter when the -E flag is passed to Python. Patch by Zachary Ware. | |
| - Issue #13390: New function :func:`sys.getallocatedblocks` returns the | |
| number of memory blocks currently allocated. | |
| - Issue #16628: Fix a memory leak in ctypes.resize(). | |
| - Issue #13614: Fix setup.py register failure with invalid rst in description. | |
| Patch by Julien Courteau and Pierre Paul Lefebvre. | |
| - Issue #13512: Create ~/.pypirc securely (CVE-2011-4944). Initial patch by | |
| Philip Jenvey, tested by Mageia and Debian. | |
| - Issue #7719: Make distutils ignore ``.nfs*`` files instead of choking later | |
| on. Initial patch by SilentGhost and Jeff Ramnani. | |
| - Issue #13120: Allow to call pdb.set_trace() from thread. | |
| Patch by Ilya Sandler. | |
| - Issue #16585: Make CJK encoders support error handlers that return bytes per | |
| PEP 383. | |
| - Issue #10182: The re module doesn't truncate indices to 32 bits anymore. | |
| Patch by Serhiy Storchaka. | |
| - Issue #16333: use (",", ": ") as default separator in json when indent is | |
| specified, to avoid trailing whitespace. Patch by Serhiy Storchaka. | |
| - Issue #16573: In 2to3, treat enumerate() like a consuming call, so superfluous | |
| list() calls aren't added to filter(), map(), and zip() which are directly | |
| passed enumerate(). | |
| - Issue #16464: Reset the Content-Length header when a urllib Request is reused | |
| with new data. | |
| - Issue #12848: The pure Python pickle implementation now treats object | |
| lengths as unsigned 32-bit integers, like the C implementation does. | |
| Patch by Serhiy Storchaka. | |
| - Issue #16423: urllib.request now has support for ``data:`` URLs. Patch by | |
| Mathias Panzenböck. | |
| - Issue #4473: Add a POP3.stls() to switch a clear-text POP3 session into | |
| an encrypted POP3 session, on supported servers. Patch by Lorenzo Catucci. | |
| - Issue #4473: Add a POP3.capa() method to query the capabilities advertised | |
| by the POP3 server. Patch by Lorenzo Catucci. | |
| - Issue #4473: Ensure the socket is shutdown cleanly in POP3.close(). | |
| Patch by Lorenzo Catucci. | |
| - Issue #16522: added FAIL_FAST flag to doctest. | |
| - Issue #15627: Add the importlib.abc.InspectLoader.source_to_code() method. | |
| - Issue #16408: Fix file descriptors not being closed in error conditions | |
| in the zipfile module. Patch by Serhiy Storchaka. | |
| - Issue #14631: Add a new :class:`weakref.WeakMethod` to simulate weak | |
| references to bound methods. | |
| - Issue #16469: Fix exceptions from float -> Fraction and Decimal -> Fraction | |
| conversions for special values to be consistent with those for float -> int | |
| and Decimal -> int. Patch by Alexey Kachayev. | |
| - Issue #16481: multiprocessing no longer leaks process handles on Windows. | |
| - Issue #12428: Add a pure Python implementation of functools.partial(). | |
| Patch by Brian Thorne. | |
| - Issue #16140: The subprocess module no longer double closes its child | |
| subprocess.PIPE parent file descriptors on child error prior to exec(). | |
| - Remove a bare print to stdout from the subprocess module that could have | |
| happened if the child process wrote garbage to its pre-exec error pipe. | |
| - The subprocess module now raises its own SubprocessError instead of a | |
| RuntimeError in various error situations which should not normally happen. | |
| - Issue #16327: The subprocess module no longer leaks file descriptors | |
| used for stdin/stdout/stderr pipes to the child when fork() fails. | |
| - Issue #14396: Handle the odd rare case of waitpid returning 0 when not | |
| expected in subprocess.Popen.wait(). | |
| - Issue #16411: Fix a bug where zlib.decompressobj().flush() might try to access | |
| previously-freed memory. Patch by Serhiy Storchaka. | |
| - Issue #16357: fix calling accept() on a SSLSocket created through | |
| SSLContext.wrap_socket(). Original patch by Jeff McNeil. | |
| - Issue #16409: The reporthook callback made by the legacy | |
| urllib.request.urlretrieve API now properly supplies a constant non-zero | |
| block_size as it did in Python 3.2 and 2.7. This matches the behavior of | |
| urllib.request.URLopener.retrieve. | |
| - Issue #16431: Use the type information when constructing a Decimal subtype | |
| from a Decimal argument. | |
| - Issue #15641: Clean up deprecated classes from importlib. | |
| Patch by Taras Lyapun. | |
| - Issue #16350: zlib.decompressobj().decompress() now accumulates data from | |
| successive calls after EOF in unused_data, instead of only saving the argument | |
| to the last call. decompressobj().flush() now correctly sets unused_data and | |
| unconsumed_tail. A bug in the handling of MemoryError when setting the | |
| unconsumed_tail attribute has also been fixed. Patch by Serhiy Storchaka. | |
| - Issue #12759: sre_parse now raises a proper error when the name of the group | |
| is missing. Initial patch by Serhiy Storchaka. | |
| - Issue #16152: fix tokenize to ignore whitespace at the end of the code when | |
| no newline is found. Patch by Ned Batchelder. | |
| - Issue #16284: Prevent keeping unnecessary references to worker functions | |
| in concurrent.futures ThreadPoolExecutor. | |
| - Issue #16230: Fix a crash in select.select() when one the lists changes | |
| size while iterated on. Patch by Serhiy Storchaka. | |
| - Issue #16228: Fix a crash in the json module where a list changes size | |
| while it is being encoded. Patch by Serhiy Storchaka. | |
| - Issue #16351: New function gc.get_stats() returns per-generation collection | |
| statistics. | |
| - Issue #14897: Enhance error messages of struct.pack and | |
| struct.pack_into. Patch by Matti Mäki. | |
| - Issue #16316: mimetypes now recognizes the .xz and .txz (.tar.xz) extensions. | |
| Patch by Serhiy Storchaka. | |
| - Issue #12890: cgitb no longer prints spurious <p> tags in text | |
| mode when the logdir option is specified. | |
| - Issue #16307: Fix multiprocessing.Pool.map_async not calling its callbacks. | |
| Patch by Janne Karila. | |
| - Issue #16305: Fix a segmentation fault occurring when interrupting | |
| math.factorial. | |
| - Issue #16116: Fix include and library paths to be correct when building C | |
| extensions in venvs. | |
| - Issue #16245: Fix the value of a few entities in html.entities.html5. | |
| - Issue #16301: Fix the localhost verification in urllib/request.py for file:// | |
| urls. | |
| - Issue #16250: Fix the invocations of URLError which had misplaced filename | |
| attribute for exception. | |
| - Issue #10836: Fix exception raised when file not found in urlretrieve | |
| Initial patch by Ezio Melotti. | |
| - Issue #14398: Fix size truncation and overflow bugs in the bz2 module. | |
| - Issue #12692: Fix resource leak in urllib.request when talking to an HTTP | |
| server that does not include a ``Connection: close`` header in its responses. | |
| - Issue #12034: Fix bogus caching of result in check_GetFinalPathNameByHandle. | |
| Patch by Atsuo Ishimoto. | |
| - Improve performance of `lzma.LZMAFile` (see also issue #16034). | |
| - Issue #16220: wsgiref now always calls close() on an iterable response. | |
| Patch by Brent Tubbs. | |
| - Issue #16270: urllib may hang when used for retrieving files via FTP by using | |
| a context manager. Patch by Giampaolo Rodola'. | |
| - Issue #16461: Wave library should be able to deal with 4GB wav files, | |
| and sample rate of 44100 Hz. | |
| - Issue #16176: Properly identify Windows 8 via platform.platform() | |
| - Issue #16088: BaseHTTPRequestHandler's send_error method includes a | |
| Content-Length header in it's response now. Patch by Antoine Pitrou. | |
| - Issue #16114: The subprocess module no longer provides a misleading error | |
| message stating that args[0] did not exist when either the cwd or executable | |
| keyword arguments specified a path that did not exist. | |
| - Issue #16169: Fix ctypes.WinError()'s confusion between errno and winerror. | |
| - Issue #16110: logging.fileConfig now accepts a pre-initialised ConfigParser | |
| instance. | |
| - Issue #1492704: shutil.copyfile() raises a distinct SameFileError now if | |
| source and destination are the same file. Patch by Atsuo Ishimoto. | |
| - Issue #13896: Make shelf instances work with 'with' as context managers. | |
| Original patch by Filip Gruszczyński. | |
| - Issue #15417: Add support for csh and fish in venv activation scripts. | |
| - Issue #14377: ElementTree.write and some of the module-level functions have | |
| a new parameter - *short_empty_elements*. It controls how elements with no | |
| contents are emitted. | |
| - Issue #16089: Allow ElementTree.TreeBuilder to work again with a non-Element | |
| element_factory (fixes a regression in SimpleTAL). | |
| - Issue #9650: List commonly used format codes in time.strftime and | |
| time.strptime docsttings. Original patch by Mike Hoy. | |
| - Issue #15452: logging configuration socket listener now has a verify option | |
| that allows an application to apply a verification function to the | |
| received configuration data before it is acted upon. | |
| - Issue #16034: Fix performance regressions in the new `bz2.BZ2File` | |
| implementation. Initial patch by Serhiy Storchaka. | |
| - `pty.spawn()` now returns the child process status returned by `os.waitpid()`. | |
| - Issue #15756: `subprocess.poll()` now properly handles `errno.ECHILD` to | |
| return a returncode of 0 when the child has already exited or cannot be waited | |
| on. | |
| - Issue #15323: Improve failure message of `Mock.assert_called_once_with()`. | |
| - Issue #16064: ``unittest -m`` claims executable is "python", not "python3". | |
| - Issue #12376: Pass on parameters in `TextTestResult.__init__()` super call. | |
| - Issue #15222: Insert blank line after each message in mbox mailboxes. | |
| - Issue #16013: Fix `csv.Reader` parsing issue with ending quote characters. | |
| Patch by Serhiy Storchaka. | |
| - Issue #15421: Fix an OverflowError in `Calendar.itermonthdates()` after | |
| `datetime.MAXYEAR`. Patch by Cédric Krier. | |
| - Issue #16112: platform.architecture does not correctly escape argument to | |
| /usr/bin/file. Patch by David Benjamin. | |
| - Issue #15970: `xml.etree.ElementTree` now serializes correctly the empty HTML | |
| elements 'meta' and 'param'. | |
| - Issue #15842: The `SocketIO.{readable,writable,seekable}` methods now raise | |
| ValueError when the file-like object is closed. Patch by Alessandro Moura. | |
| - Issue #15876: Fix a refleak in the `curses` module: window.encoding. | |
| - Issue #15881: Fix `atexit` hook in `multiprocessing`. Original patch by Chris | |
| McDonough. | |
| - Issue #15841: The readable(), writable() and seekable() methods of | |
| `io.BytesIO` and `io.StringIO` objects now raise ValueError when the object | |
| has been closed. Patch by Alessandro Moura. | |
| - Issue #15447: Use `subprocess.DEVNULL` in webbrowser, instead of opening | |
| `os.devnull` explicitly and leaving it open. | |
| - Issue #15509: `webbrowser.UnixBrowser` no longer passes empty arguments to | |
| Popen when ``%action`` substitutions produce empty strings. | |
| - Issue #12776, issue #11839: Call `argparse` type function (specified by | |
| add_argument) only once. Before, the type function was called twice in the | |
| case where the default was specified and the argument was given as well. This | |
| was especially problematic for the FileType type, as a default file would | |
| always be opened, even if a file argument was specified on the command line. | |
| - Issue #15906: Fix a regression in argparse caused by the preceding change, | |
| when ``action='append'``, ``type='str'`` and ``default=[]``. | |
| - Issue #16113: Added sha3 module based on the Keccak reference implementation | |
| 3.2. The `hashlib` module has four additional hash algorithms: `sha3_224`, | |
| `sha3_256`, `sha3_384` and `sha3_512`. As part of the patch some common | |
| code was moved from _hashopenssl.c to hashlib.h. | |
| - ctypes.call_commethod was removed, since its only usage was in the defunct | |
| samples directory. | |
| - Issue #16692: Added TLSv1.1 and TLSv1.2 support for the ssl modules. | |
| - Issue #16832: add abc.get_cache_token() to expose cache validity checking | |
| support in ABCMeta. | |
| IDLE | |
| ---- | |
| - Issue #18429: Format / Format Paragraph, now works when comment blocks | |
| are selected. As with text blocks, this works best when the selection | |
| only includes complete lines. | |
| - Issue #18226: Add docstrings and unittests for FormatParagraph.py. | |
| Original patches by Todd Rovito and Phil Webster. | |
| - Issue #18279: Format - Strip trailing whitespace no longer marks a file as | |
| changed when it has not been changed. This fix followed the addition of a | |
| test file originally written by Phil Webster (the issue's main goal). | |
| - Issue #7136: In the Idle File menu, "New Window" is renamed "New File". | |
| Patch by Tal Einat, Roget Serwy, and Todd Rovito. | |
| - Remove dead imports of imp. | |
| - Issue #18196: Avoid displaying spurious SystemExit tracebacks. | |
| - Issue #5492: Avoid traceback when exiting IDLE caused by a race condition. | |
| - Issue #17511: Keep IDLE find dialog open after clicking "Find Next". | |
| Original patch by Sarah K. | |
| - Issue #18055: Move IDLE off of imp and on to importlib. | |
| - Issue #15392: Create a unittest framework for IDLE. | |
| Initial patch by Rajagopalasarma Jayakrishnan. | |
| See Lib/idlelib/idle_test/README.txt for how to run Idle tests. | |
| - Issue #14146: Highlight source line while debugging on Windows. | |
| - Issue #17838: Allow sys.stdin to be reassigned. | |
| - Issue #13495: Avoid loading the color delegator twice in IDLE. | |
| - Issue #17798: Allow IDLE to edit new files when specified on command line. | |
| - Issue #14735: Update IDLE docs to omit "Control-z on Windows". | |
| - Issue #17532: Always include Options menu for IDLE on OS X. | |
| Patch by Guilherme Simões. | |
| - Issue #17585: Fixed IDLE regression. Now closes when using exit() or quit(). | |
| - Issue #17657: Show full Tk version in IDLE's about dialog. | |
| Patch by Todd Rovito. | |
| - Issue #17613: Prevent traceback when removing syntax colorizer in IDLE. | |
| - Issue #1207589: Backwards-compatibility patch for right-click menu in IDLE. | |
| - Issue #16887: IDLE now accepts Cancel in tabify/untabify dialog box. | |
| - Issue #17625: In IDLE, close the replace dialog after it is used. | |
| - Issue #14254: IDLE now handles readline correctly across shell restarts. | |
| - Issue #17614: IDLE no longer raises exception when quickly closing a file. | |
| - Issue #6698: IDLE now opens just an editor window when configured to do so. | |
| - Issue #8900: Using keyboard shortcuts in IDLE to open a file no longer | |
| raises an exception. | |
| - Issue #6649: Fixed missing exit status in IDLE. Patch by Guilherme Polo. | |
| - Issue #17114: IDLE now uses non-strict config parser. | |
| - Issue #9290: In IDLE the sys.std* streams now implement io.TextIOBase | |
| interface and support all mandatory methods and properties. | |
| - Issue #5066: Update IDLE docs. Patch by Todd Rovito. | |
| - Issue #16829: IDLE printing no longer fails if there are spaces or other | |
| special characters in the file path. | |
| - Issue #16491: IDLE now prints chained exception tracebacks. | |
| - Issue #16819: IDLE method completion now correctly works for bytes literals. | |
| - Issue #16504: IDLE now catches SyntaxErrors raised by tokenizer. Patch by | |
| Roger Serwy. | |
| - Issue #16511: Use default IDLE width and height if config param is not valid. | |
| Patch Serhiy Storchaka. | |
| - Issue #1207589: Add Cut/Copy/Paste items to IDLE right click Context Menu. | |
| Patch by Todd Rovito. | |
| - Issue #16123: IDLE - deprecate running without a subprocess. | |
| Patch by Roger Serwy. | |
| Tests | |
| ----- | |
| - Issue #1666318: Add a test that shutil.copytree() retains directory | |
| permissions. Patch by Catherine Devlin. | |
| - Issue #18273: move the tests in Lib/test/json_tests to Lib/test/test_json | |
| and make them discoverable by unittest. Patch by Zachary Ware. | |
| - Fix a fcntl test case on KFreeBSD, Debian #708653 (Petr Salinger). | |
| - Issue #18396: Fix spurious test failure in test_signal on Windows when | |
| faulthandler is enabled (Patch by Jeremy Kloth) | |
| - Issue #17046: Fix broken test_executable_without_cwd in test_subprocess. | |
| - Issue #15415: Add new temp_dir() and change_cwd() context managers to | |
| test.support, and refactor temp_cwd() to use them. Patch by Chris Jerdonek. | |
| - Issue #15494: test.support is now a package rather than a module (Initial | |
| patch by Indra Talip) | |
| - Issue #17944: test_zipfile now discoverable and uses subclassing to | |
| generate tests for different compression types. Fixed a bug with skipping | |
| some tests due to use of exhausted iterators. | |
| - Issue #18266: test_largefile now works with unittest test discovery and | |
| supports running only selected tests. Patch by Zachary Ware. | |
| - Issue #17767: test_locale now works with unittest test discovery. | |
| Original patch by Zachary Ware. | |
| - Issue #18375: Assume --randomize when --randseed is used for running the | |
| testsuite. | |
| - Issue #11185: Fix test_wait4 under AIX. Patch by Sébastien Sablé. | |
| - Issue #18207: Fix test_ssl for some versions of OpenSSL that ignore seconds | |
| in ASN1_TIME fields. | |
| - Issue #18094: test_uuid no longer reports skipped tests as passed. | |
| - Issue #17992: Add timeouts to asyncore and asynchat tests so that they won't | |
| accidentally hang. | |
| - Issue #17833: Fix test_gdb failures seen on machines where debug symbols | |
| for glibc are available (seen on PPC64 Linux). | |
| - Issue #7855: Add tests for ctypes/winreg for issues found in IronPython. | |
| Initial patch by Dino Viehland. | |
| - Issue #11078: test___all__ now checks for duplicates in __all__. | |
| Initial patch by R. David Murray. | |
| - Issue #17712: Fix test_gdb failures on Ubuntu 13.04. | |
| - Issue #17835: Fix test_io when the default OS pipe buffer size is larger | |
| than one million bytes. | |
| - Issue #17065: Use process-unique key for winreg tests to avoid failures if | |
| test is run multiple times in parallel (eg: on a buildbot host). | |
| - Issue #12820: add tests for the xml.dom.minicompat module. | |
| Patch by John Chandler and Phil Connell. | |
| - Issue #17691: test_univnewlines now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #17790: test_set now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #17789: test_random now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #17779: test_osx_env now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #17766: test_iterlen now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #17690: test_time now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #17692: test_sqlite now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #11995: test_pydoc doesn't import all sys.path modules anymore. | |
| - Issue #17448: test_sax now skips if there are no xml parsers available | |
| instead of raising an ImportError. | |
| - Issue #11420: make test suite pass with -B/DONTWRITEBYTECODE set. | |
| Initial patch by Thomas Wouters. | |
| - Issue #10652: make tcl/tk tests run after __all__ test, patch by | |
| Zachary Ware. | |
| - Issue #11963: remove human verification from test_parser and test_subprocess. | |
| - Issue #11732: add a new suppress_crash_popup() context manager to test.support | |
| that disables crash popups on Windows and use it in test_faulthandler and | |
| test_capi. | |
| - Issue #13898: test_ssl no longer prints a spurious stack trace on Ubuntu. | |
| - Issue #17283: Share code between `__main__.py` and `regrtest.py` in | |
| `Lib/test`. | |
| - Issue #17249: convert a test in test_capi to use unittest and reap threads. | |
| - Issue #17107: Test client-side SNI support in urllib.request thanks to | |
| the new server-side SNI support in the ssl module. Initial patch by | |
| Daniel Black. | |
| - Issue #17041: Fix testing when Python is configured with the | |
| --without-doc-strings. | |
| - Issue #16923: Fix ResourceWarnings in test_ssl. | |
| - Issue #15539: Added regression tests for Tools/scripts/pindent.py. | |
| - Issue #17479: test_io now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #17066: test_robotparser now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #17334: test_index now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #17333: test_imaplib now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #17082: test_dbm* now work with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #17079: test_ctypes now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #17304: test_hash now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #17303: test_future* now work with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #17163: test_file now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #16925: test_configparser now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #16918: test_codecs now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #16919: test_crypt now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #16910: test_bytes, test_unicode, and test_userstring now work with | |
| unittest test discovery. Patch by Zachary Ware. | |
| - Issue #16905: test_warnings now works with unittest test discovery. | |
| Initial patch by Berker Peksag. | |
| - Issue #16898: test_bufio now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #16888: test_array now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #16896: test_asyncore now works with unittest test discovery. | |
| Patch by Zachary Ware. | |
| - Issue #16897: test_bisect now works with unittest test discovery. | |
| Initial patch by Zachary Ware. | |
| - Issue #16852: test_genericpath, test_posixpath, test_ntpath, and test_macpath | |
| now work with unittest test discovery. Patch by Zachary Ware. | |
| - Issue #16748: test_heapq now works with unittest test discovery. | |
| - Issue #10646: Tests rearranged for os.samefile/samestat to check for not | |
| just symlinks but also hard links. | |
| - Issue #15302: Switch regrtest from using getopt to using argparse. | |
| - Issue #15324: Fix regrtest parsing of --fromfile, --match, and --randomize | |
| options. | |
| - Issue #16702: test_urllib2_localnet tests now correctly ignores proxies for | |
| localhost tests. | |
| - Issue #16664: Add regression tests for glob's behaviour concerning entries | |
| starting with a ".". Patch by Sebastian Kreft. | |
| - Issue #13390: The ``-R`` option to regrtest now also checks for memory | |
| allocation leaks, using :func:`sys.getallocatedblocks`. | |
| - Issue #16559: Add more tests for the json module, including some from the | |
| official test suite at json.org. Patch by Serhiy Storchaka. | |
| - Issue #16661: Fix the `os.getgrouplist()` test by not assuming that it gives | |
| the same output as :command:`id -G`. | |
| - Issue #16115: Add some tests for the executable argument to | |
| subprocess.Popen(). Initial patch by Kushal Das. | |
| - Issue #16126: PyErr_Format format mismatch in _testcapimodule.c. | |
| Patch by Serhiy Storchaka. | |
| - Issue #15304: Fix warning message when `os.chdir()` fails inside | |
| `test.support.temp_cwd()`. Patch by Chris Jerdonek. | |
| - Issue #15802: Fix test logic in `TestMaildir.test_create_tmp()`. Patch by | |
| Serhiy Storchaka. | |
| - Issue #15557: Added a test suite for the webbrowser module, thanks to Anton | |
| Barkovsky. | |
| - Issue #16698: Skip posix test_getgroups when built with OS X | |
| deployment target prior to 10.6. | |
| Build | |
| ----- | |
| - Issue #16067: Add description into MSI file to replace installer's | |
| temporary name. | |
| - Issue #18257: Fix readlink usage in python-config. Install the python | |
| version again on Darwin. | |
| - Issue #18481: Add C coverage reporting with gcov and lcov. A new make target | |
| "coverage-report" creates an instrumented Python build, runs unit tests | |
| and creates a HTML. The report can be updated with "make coverage-lcov". | |
| - Issue #17845: Clarified the message printed when some module are not built. | |
| - Issue #18256: Compilation fix for recent AIX releases. Patch by | |
| David Edelsohn. | |
| - Issue #17547: In configure, explicitly pass -Wformat for the benefit for GCC | |
| 4.8. | |
| - Issue #15172: Document NASM 2.10+ as requirement for building OpenSSL 1.0.1 | |
| on Windows. | |
| - Issue #17591: Use lowercase filenames when including Windows header files. | |
| Patch by Roumen Petrov. | |
| - Issue #17550: Fix the --enable-profiling configure switch. | |
| - Issue #17425: Build with openssl 1.0.1d on Windows. | |
| - Issue #16754: Fix the incorrect shared library extension on linux. Introduce | |
| two makefile macros SHLIB_SUFFIX and EXT_SUFFIX. SO now has the value of | |
| SHLIB_SUFFIX again (as in 2.x and 3.1). The SO macro is removed in 3.4. | |
| - Issue #5033: Fix building of the sqlite3 extension module when the | |
| SQLite library version has "beta" in it. Patch by Andreas Pelme. | |
| - Issue #17228: Fix building without pymalloc. | |
| - Issue #3718: Use AC_ARG_VAR to set MACHDEP in configure.ac. | |
| - Issue #16235: Implement python-config as a shell script. | |
| - Issue #16769: Remove outdated Visual Studio projects. | |
| - Issue #17031: Fix running regen in cross builds. | |
| - Issue #3754: fix typo in pthread AC_CACHE_VAL. | |
| - Issue #15484: Fix _PYTHON_PROJECT_BASE for srcdir != builddir builds; | |
| use _PYTHON_PROJECT_BASE in distutils/sysconfig.py. | |
| - Drop support for Windows 2000 (changeset e52df05b496a). | |
| - Issue #17029: Let h2py search the multiarch system include directory. | |
| - Issue #16953: Fix socket module compilation on platforms with | |
| HAVE_BROKEN_POLL. Patch by Jeffrey Armstrong. | |
| - Issue #16320: Remove redundant Makefile dependencies for strings and bytes. | |
| - Cross compiling needs host and build settings. configure no longer | |
| creates a broken PYTHON_FOR_BUILD variable when --build is missing. | |
| - Fix cross compiling issue in setup.py, ensure that lib_dirs and inc_dirs are | |
| defined in cross compiling mode, too. | |
| - Issue #16836: Enable IPv6 support even if IPv6 is disabled on the build host. | |
| - Issue #16593: Have BSD 'make -s' do the right thing, thanks to Daniel Shahaf | |
| - Issue #16262: fix out-of-src-tree builds, if mercurial is not installed. | |
| - Issue #15298: ensure _sysconfigdata is generated in build directory, not | |
| source directory. | |
| - Issue #15833: Fix a regression in 3.3 that resulted in exceptions being | |
| raised if importlib failed to write byte-compiled files. This affected | |
| attempts to build Python out-of-tree from a read-only source directory. | |
| - Issue #15923: Fix a mistake in ``asdl_c.py`` that resulted in a TypeError | |
| after 2801bf875a24 (see #15801). | |
| - Issue #16135: Remove OS/2 support. | |
| - Issue #15819: Make sure we can build Python out-of-tree from a read-only | |
| source directory. (Somewhat related to issue #9860.) | |
| - Issue #15587: Enable Tk high-resolution text rendering on Macs with | |
| Retina displays. Applies to Tkinter apps, such as IDLE, on OS X | |
| framework builds linked with Cocoa Tk 8.5. | |
| - Issue #17161: make install now also installs a python3 man page. | |
| C-API | |
| ----- | |
| - Issue #18351: Fix various issues in a function in importlib provided to help | |
| PyImport_ExecCodeModuleWithPathnames() (and thus by extension | |
| PyImport_ExecCodeModule() and PyImport_ExecCodeModuleEx()). | |
| - Issue #9369: The types of `char*` arguments of PyObject_CallFunction() and | |
| PyObject_CallMethod() now changed to `const char*`. Based on patches by | |
| Jörg Müller and Lars Buitinck. | |
| - Issue #17206: Py_CLEAR(), Py_DECREF(), Py_XINCREF() and Py_XDECREF() now | |
| expand their arguments once instead of multiple times. Patch written by Illia | |
| Polosukhin. | |
| - Issue #17522: Add the PyGILState_Check() API. | |
| - Issue #17327: Add PyDict_SetDefault. | |
| - Issue #16881: Fix Py_ARRAY_LENGTH macro for GCC < 3.1. | |
| - Issue #16505: Remove unused Py_TPFLAGS_INT_SUBCLASS. | |
| - Issue #16086: PyTypeObject.tp_flags and PyType_Spec.flags are now unsigned | |
| (unsigned long and unsigned int) to avoid an undefined behaviour with | |
| Py_TPFLAGS_TYPE_SUBCLASS ((1 << 31). PyType_GetFlags() result type is | |
| now unsigned too (unsigned long, instead of long). | |
| - Issue #16166: Add PY_LITTLE_ENDIAN and PY_BIG_ENDIAN macros and unified | |
| endianness detection and handling. | |
| Documentation | |
| ------------- | |
| - Issue #17701: Improving strftime documentation. | |
| - Issue #18440: Clarify that `hash()` can truncate the value returned from an | |
| object's custom `__hash__()` method. | |
| - Issue #17844: Add links to encoders and decoders for bytes-to-bytes codecs. | |
| - Issue #14097: improve the "introduction" page of the tutorial. | |
| - Issue #17977: The documentation for the cadefault argument's default value | |
| in urllib.request.urlopen() is fixed to match the code. | |
| - Issue #6696: add documentation for the Profile objects, and improve | |
| profile/cProfile docs. Patch by Tom Pinckney. | |
| - Issue #15940: Specify effect of locale on time functions. | |
| - Issue #17538: Document XML vulnerabilities | |
| - Issue #16642: sched.scheduler timefunc initial default is time.monotonic. | |
| Patch by Ramchandra Apte | |
| - Issue #17047: remove doubled words in docs and docstrings | |
| reported by Serhiy Storchaka and Matthew Barnett. | |
| - Issue #15465: Document the versioning macros in the C API docs rather than | |
| the standard library docs. Patch by Kushal Das. | |
| - Issue #16406: Combine the pages for uploading and registering to PyPI. | |
| - Issue #16403: Document how distutils uses the maintainer field in | |
| PKG-INFO. Patch by Jyrki Pulliainen. | |
| - Issue #16695: Document how glob handles filenames starting with a | |
| dot. Initial patch by Jyrki Pulliainen. | |
| - Issue #8890: Stop advertising an insecure practice by replacing uses | |
| of the /tmp directory with better alternatives in the documentation. | |
| Patch by Geoff Wilson. | |
| - Issue #17203: add long option names to unittest discovery docs. | |
| - Issue #13094: add "Why do lambdas defined in a loop with different values | |
| all return the same result?" programming FAQ. | |
| - Issue #14901: Update portions of the Windows FAQ. | |
| Patch by Ashish Nitin Patil. | |
| - Issue #16267: Better document the 3.3+ approach to combining | |
| @abstractmethod with @staticmethod, @classmethod and @property | |
| - Issue #15209: Clarify exception chaining description in exceptions module | |
| documentation | |
| - Issue #15990: Improve argument/parameter documentation. | |
| - Issue #16209: Move the documentation for the str built-in function to a new | |
| str class entry in the "Text Sequence Type" section. | |
| - Issue #13538: Improve str() and object.__str__() documentation. | |
| - Issue #16489: Make it clearer that importlib.find_loader() needs parent | |
| packages to be explicitly imported. | |
| - Issue #16400: Update the description of which versions of a given package | |
| PyPI displays. | |
| - Issue #15677: Document that zlib and gzip accept a compression level of 0 to | |
| mean 'no compression'. Patch by Brian Brazil. | |
| - Issue #16197: Update winreg docstrings and documentation to match code. | |
| Patch by Zachary Ware. | |
| - Issue #8040: added a version switcher to the documentation. Patch by | |
| Yury Selivanov. | |
| - Issue #16241: Document -X faulthandler command line option. | |
| Patch by Marek Šuppa. | |
| - Additional comments and some style changes in the concurrent.futures URL | |
| retrieval example | |
| - Issue #16115: Improve subprocess.Popen() documentation around args, shell, | |
| and executable arguments. | |
| - Issue #13498: Clarify docs of os.makedirs()'s exist_ok argument. Done with | |
| great native-speaker help from R. David Murray. | |
| - Issue #15533: Clarify docs and add tests for `subprocess.Popen()`'s cwd | |
| argument. | |
| - Issue #15979: Improve timeit documentation. | |
| - Issue #16036: Improve documentation of built-in `int()`'s signature and | |
| arguments. | |
| - Issue #15935: Clarification of `argparse` docs, re: add_argument() type and | |
| default arguments. Patch contributed by Chris Jerdonek. | |
| - Issue #11964: Document a change in v3.2 to the behavior of the indent | |
| parameter of json encoding operations. | |
| - Issue #15116: Remove references to appscript as it is no longer being | |
| supported. | |
| Tools/Demos | |
| ----------- | |
| - Issue #18817: Fix a resource warning in Lib/aifc.py demo. Patch by | |
| Vajrasky Kok. | |
| - Issue #18439: Make patchcheck work on Windows for ACKS, NEWS. | |
| - Issue #18448: Fix a typo in Tools/demo/eiffel.py. | |
| - Issue #18457: Fixed saving of formulas and complex numbers in | |
| Tools/demo/ss1.py. | |
| - Issue #18449: Make Tools/demo/ss1.py work again on Python 3. Patch by | |
| Févry Thibault. | |
| - Issue #12990: The "Python Launcher" on OSX could not launch python scripts | |
| that have paths that include wide characters. | |
| - Issue #15239: Make mkstringprep.py work again on Python 3. | |
| - Issue #17028: Allowed Python arguments to be supplied to the Windows | |
| launcher. | |
| - Issue #17156: pygettext.py now detects the encoding of source files and | |
| correctly writes and escapes non-ascii characters. | |
| - Issue #15539: Fix a number of bugs in Tools/scripts/pindent.py. Now | |
| pindent.py works with a "with" statement. pindent.py no longer produces | |
| improper indentation. pindent.py now works with continued lines broken after | |
| "class" or "def" keywords and with continuations at the start of line. | |
| - Issue #11797: Add a 2to3 fixer that maps reload() to imp.reload(). | |
| - Issue #10966: Remove the concept of unexpected skipped tests. | |
| - Issue #9893: Removed the Misc/Vim directory. | |
| - Removed the Misc/TextMate directory. | |
| - Issue #16245: Add the Tools/scripts/parse_html5_entities.py script to parse | |
| the list of HTML5 entities and update the html.entities.html5 dictionary. | |
| - Issue #15378: Fix Tools/unicode/comparecodecs.py. Patch by Serhiy Storchaka. | |
| - Issue #16549: Make json.tool work again on Python 3 and add tests. | |
| Initial patch by Berker Peksag and Serhiy Storchaka. | |
| - Issue #13301: use ast.literal_eval() instead of eval() in Tools/i18n/msgfmt.py. | |
| Patch by Serhiy Storchaka. | |
| Windows | |
| ------- | |
| - Issue #18569: The installer now adds .py to the PATHEXT variable when extensions | |
| are registered. Patch by Paul Moore. | |
| What's New in Python 3.3.0? | |
| =========================== | |
| *Release date: 29-Sep-2012* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #16046: Fix loading sourceless legacy .pyo files. | |
| - Issue #16060: Fix refcounting bug when `__trunc__()` returns an object whose | |
| `__int__()` gives a non-integer. Patch by Serhiy Storchaka. | |
| Extension Modules | |
| ----------------- | |
| - Issue #16012: Fix a regression in pyexpat. The parser's `UseForeignDTD()` | |
| method doesn't require an argument again. | |
| What's New in Python 3.3.0 Release Candidate 3? | |
| =============================================== | |
| *Release date: 23-Sep-2012* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #15900: Fix reference leak in `PyUnicode_TranslateCharmap()`. | |
| - Issue #15926: Fix crash after multiple reinitializations of the interpreter. | |
| - Issue #15895: Fix FILE pointer leak in one error branch of | |
| `PyRun_SimpleFileExFlags()` when filename points to a pyc/pyo file, closeit is | |
| false an and set_main_loader() fails. | |
| - Fixes for a few crash and memory leak regressions found by Coverity. | |
| Library | |
| ------- | |
| - Issue #15882: Change `_decimal` to accept any coefficient tuple when | |
| constructing infinities. This is done for backwards compatibility with | |
| decimal.py: Infinity coefficients are undefined in _decimal (in accordance | |
| with the specification). | |
| - Issue #15925: Fix a regression in `email.util` where the `parsedate()` and | |
| `parsedate_tz()` functions did not return None anymore when the argument could | |
| not be parsed. | |
| Extension Modules | |
| ----------------- | |
| - Issue #15973: Fix a segmentation fault when comparing datetime timezone | |
| objects. | |
| - Issue #15977: Fix memory leak in Modules/_ssl.c when the function | |
| _set_npn_protocols() is called multiple times, thanks to Daniel Sommermann. | |
| - Issue #15969: `faulthandler` module: rename dump_tracebacks_later() to | |
| dump_traceback_later() and cancel_dump_tracebacks_later() to | |
| cancel_dump_traceback_later(). | |
| - _decimal module: use only C 89 style comments. | |
| What's New in Python 3.3.0 Release Candidate 2? | |
| =============================================== | |
| *Release date: 09-Sep-2012* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #13992: The trashcan mechanism is now thread-safe. This eliminates | |
| sporadic crashes in multi-thread programs when several long deallocator chains | |
| ran concurrently and involved subclasses of built-in container types. | |
| - Issue #15784: Modify `OSError`.__str__() to better distinguish between errno | |
| error numbers and Windows error numbers. | |
| - Issue #15781: Fix two small race conditions in import's module locking. | |
| Library | |
| ------- | |
| - Issue #17158: Add 'symbols' to help() welcome message; clarify | |
| 'modules spam' messages. | |
| - Issue #15847: Fix a regression in argparse, which did not accept tuples as | |
| argument lists anymore. | |
| - Issue #15828: Restore support for C extensions in `imp.load_module()`. | |
| - Issue #15340: Fix importing the random module when ``/dev/urandom`` cannot be | |
| opened. This was a regression caused by the hash randomization patch. | |
| - Issue #10650: Deprecate the watchexp parameter of the `Decimal.quantize()` | |
| method. | |
| - Issue #15785: Modify `window.get_wch()` API of the curses module: return a | |
| character for most keys, and an integer for special keys, instead of always | |
| returning an integer. So it is now possible to distinguish special keys like | |
| keypad keys. | |
| - Issue #14223: Fix `window.addch()` of the curses module for special characters | |
| like curses.ACS_HLINE: the Python function addch(int) and addch(bytes) is now | |
| calling the C function waddch()/mvwaddch() (as it was done in Python 3.2), | |
| instead of wadd_wch()/mvwadd_wch(). The Python function addch(str) is still | |
| calling the C function wadd_wch()/mvwadd_wch() if the Python curses is linked | |
| to libncursesw. | |
| Build | |
| ----- | |
| - Issue #15822: Really ensure 2to3 grammar pickles are properly installed | |
| (replaces fixes for Issue #15645). | |
| Documentation | |
| ------------- | |
| - Issue #15814: The memoryview enhancements in 3.3.0 accidentally permitted the | |
| hashing of multi-dimensional memorviews and memoryviews with multi-byte item | |
| formats. The intended restrictions have now been documented - they will be | |
| correctly enforced in 3.3.1. | |
| What's New in Python 3.3.0 Release Candidate 1? | |
| =============================================== | |
| *Release date: 25-Aug-2012* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #15573: memoryview comparisons are now performed by value with full | |
| support for any valid struct module format definition. | |
| - Issue #15316: When an item in the fromlist for `__import__()` doesn't exist, | |
| don't raise an error, but if an exception is raised as part of an import do | |
| let that propagate. | |
| - Issue #15778: Ensure that ``str(ImportError(msg))`` returns a str even when | |
| msg isn't a str. | |
| - Issue #2051: Source file permission bits are once again correctly copied to | |
| the cached bytecode file. (The migration to importlib reintroduced this | |
| problem because these was no regression test. A test has been added as part of | |
| this patch) | |
| - Issue #15761: Fix crash when ``PYTHONEXECUTABLE`` is set on Mac OS X. | |
| - Issue #15726: Fix incorrect bounds checking in PyState_FindModule. Patch by | |
| Robin Schreiber. | |
| - Issue #15604: Update uses of `PyObject_IsTrue()` to check for and handle | |
| errors correctly. Patch by Serhiy Storchaka. | |
| - Issue #14846: `importlib.FileFinder` now handles the case where the directory | |
| being searched is removed after a previous import attempt. | |
| Library | |
| ------- | |
| - Issue #13370: Ensure that ctypes works on Mac OS X when Python is compiled | |
| using the clang compiler. | |
| - Issue #13072: The array module's 'u' format code is now deprecated and will be | |
| removed in Python 4.0. | |
| - Issue #15544: Fix Decimal.__float__ to work with payload-carrying NaNs. | |
| - Issue #15776: Allow pyvenv to work in existing directory with --clean. | |
| - Issue #15249: email's BytesGenerator now correctly mangles From lines (when | |
| requested) even if the body contains undecodable bytes. | |
| - Issue #15777: Fix a refleak in _posixsubprocess. | |
| - Issue #665194: Update `email.utils.localtime` to use datetime.astimezone and | |
| correctly handle historic changes in UTC offsets. | |
| - Issue #15199: Fix JavaScript's default MIME type to application/javascript. | |
| Patch by Bohuslav Kabrda. | |
| - Issue #12643: `code.InteractiveConsole` now respects `sys.excepthook` when | |
| displaying exceptions. Patch by Aaron Iles. | |
| - Issue #13579: `string.Formatter` now understands the 'a' conversion specifier. | |
| - Issue #15595: Fix ``subprocess.Popen(universal_newlines=True)`` for certain | |
| locales (utf-16 and utf-32 family). Patch by Chris Jerdonek. | |
| - Issue #15477: In cmath and math modules, add workaround for platforms whose | |
| system-supplied log1p function doesn't respect signs of zeros. | |
| - Issue #15715: `importlib.__import__()` will silence an ImportError when the | |
| use of fromlist leads to a failed import. | |
| - Issue #14669: Fix pickling of connections and sockets on Mac OS X by | |
| sending/receiving an acknowledgment after file descriptor transfer. | |
| TestPicklingConnection has been re-enabled for Mac OS X. | |
| - Issue #11062: Fix adding a message from file to Babyl mailbox. | |
| - Issue #15646: Prevent equivalent of a fork bomb when using `multiprocessing` | |
| on Windows without the ``if __name__ == '__main__'`` idiom. | |
| IDLE | |
| ---- | |
| - Issue #15678: Fix IDLE menus when started from OS X command line (3.3.0b2 | |
| regression). | |
| Documentation | |
| ------------- | |
| - Touched up the Python 2 to 3 porting guide. | |
| - Issue #14674: Add a discussion of the `json` module's standard compliance. | |
| Patch by Chris Rebert. | |
| - Create a 'Concurrent Execution' section in the docs, and split up the | |
| 'Optional Operating System Services' section to use a more user-centric | |
| classification scheme (splitting them across the new CE section, IPC and text | |
| processing). Operating system limitations can be reflected with the Sphinx | |
| ``:platform:`` tag, it doesn't make sense as part of the Table of Contents. | |
| - Issue #4966: Bring the sequence docs up to date for the Py3k transition and | |
| the many language enhancements since they were original written. | |
| - The "path importer" misnomer has been replaced with Eric Snow's | |
| more-awkward-but-at-least-not-wrong suggestion of "path based finder" in the | |
| import system reference docs. | |
| - Issue #15640: Document `importlib.abc.Finder` as deprecated. | |
| - Issue #15630: Add an example for "continue" stmt in the tutorial. Patch by | |
| Daniel Ellis. | |
| Tests | |
| ----- | |
| - Issue #15747: ZFS always returns EOPNOTSUPP when attempting to set the | |
| UF_IMMUTABLE flag (via either chflags or lchflags); refactor affected tests in | |
| test_posix.py to account for this. | |
| - Issue #15285: Refactor the approach for testing connect timeouts using two | |
| external hosts that have been configured specifically for this type of test. | |
| - Issue #15743: Remove the deprecated method usage in `urllib` tests. Patch by | |
| Jeff Knupp. | |
| - Issue #15615: Add some tests for the `json` module's handling of invalid input | |
| data. Patch by Kushal Das. | |
| Build | |
| ----- | |
| - Output lib files for PGO build into PGO directory. | |
| - Pick up 32-bit launcher from PGO directory on 64-bit PGO build. | |
| - Drop ``PC\python_nt.h`` as it's not used. Add input dependency on custom | |
| build step. | |
| - Issue #15511: Drop explicit dependency on pythonxy.lib from _decimal amd64 | |
| configuration. | |
| - Add missing PGI/PGO configurations for pywlauncher. | |
| - Issue #15645: Ensure 2to3 grammar pickles are properly installed. | |
| What's New in Python 3.3.0 Beta 2? | |
| ================================== | |
| *Release date: 12-Aug-2012* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #15568: Fix the return value of ``yield from`` when StopIteration is | |
| raised by a custom iterator. | |
| - Issue #13119: `sys.stdout` and `sys.stderr` are now using "\r\n" newline on | |
| Windows, as Python 2. | |
| - Issue #15534: Fix the fast-search function for non-ASCII Unicode strings. | |
| - Issue #15508: Fix the docstring for `__import__()` to have the proper default | |
| value of 0 for 'level' and to not mention negative levels since they are not | |
| supported. | |
| - Issue #15425: Eliminated traceback noise from more situations involving | |
| importlib. | |
| - Issue #14578: Support modules registered in the Windows registry again. | |
| - Issue #15466: Stop using TYPE_INT64 in marshal, to make importlib.h (and other | |
| byte code files) equal between 32-bit and 64-bit systems. | |
| - Issue #1692335: Move initial exception args assignment to | |
| `BaseException.__new__()` to help pickling of naive subclasses. | |
| - Issue #12834: Fix `PyBuffer_ToContiguous()` for non-contiguous arrays. | |
| - Issue #15456: Fix code `__sizeof__()` after #12399 change. Patch by Serhiy | |
| Storchaka. | |
| - Issue #15404: Refleak in PyMethodObject repr. | |
| - Issue #15394: An issue in `PyModule_Create()` that caused references to be | |
| leaked on some error paths has been fixed. Patch by Julia Lawall. | |
| - Issue #15368: An issue that caused bytecode generation to be non-deterministic | |
| has been fixed. | |
| - Issue #15202: Consistently use the name "follow_symlinks" for new parameters | |
| in os and shutil functions. | |
| - Issue #15314: ``__main__.__loader__`` is now set correctly during interpreter | |
| startup. | |
| - Issue #15111: When a module imported using 'from import' has an ImportError | |
| inside itself, don't mask that fact behind a generic ImportError for the | |
| module itself. | |
| - Issue #15293: Add GC support to the AST base node type. | |
| - Issue #15291: Fix a memory leak where AST nodes where not properly | |
| deallocated. | |
| - Issue #15110: Fix the tracebacks generated by "import xxx" to not show the | |
| importlib stack frames. | |
| - Issue #16369: Global PyTypeObjects not initialized with PyType_Ready(...). | |
| - Issue #15020: The program name used to search for Python's path is now | |
| "python3" under Unix, not "python". | |
| - Issue #15897: zipimport.c doesn't check return value of fseek(). | |
| Patch by Felipe Cruz. | |
| - Issue #15033: Fix the exit status bug when modules invoked using -m switch, | |
| return the proper failure return value (1). Patch contributed by Jeff Knupp. | |
| - Issue #15229: An `OSError` subclass whose __init__ doesn't call back | |
| OSError.__init__ could produce incomplete instances, leading to crashes when | |
| calling str() on them. | |
| - Issue #15307: Virtual environments now use symlinks with framework builds on | |
| Mac OS X, like other POSIX builds. | |
| Library | |
| ------- | |
| - Issue #14590: configparser now correctly strips inline comments when delimiter | |
| occurs earlier without preceding space. | |
| - Issue #15424: Add a `__sizeof__()` implementation for array objects. Patch by | |
| Ludwig Hähne. | |
| - Issue #15576: Allow extension modules to act as a package's __init__ module. | |
| - Issue #15502: Have `importlib.invalidate_caches()` work on `sys.meta_path` | |
| instead of `sys.path_importer_cache`. | |
| - Issue #15163: Pydoc shouldn't list __loader__ as module data. | |
| - Issue #15471: Do not use mutable objects as defaults for | |
| `importlib.__import__()`. | |
| - Issue #15559: To avoid a problematic failure mode when passed to the bytes | |
| constructor, objects in the ipaddress module no longer implement `__index__()` | |
| (they still implement `__int__()` as appropriate). | |
| - Issue #15546: Fix handling of pathological input data in the peek() and | |
| read1() methods of the BZ2File, GzipFile and LZMAFile classes. | |
| - Issue #12655: Instead of requiring a custom type, `os.sched_getaffinity()` and | |
| `os.sched_setaffinity()` now use regular sets of integers to represent the | |
| CPUs a process is restricted to. | |
| - Issue #15538: Fix compilation of the `socket.getnameinfo()` / | |
| `socket.getaddrinfo()` emulation code. Patch by Philipp Hagemeister. | |
| - Issue #15519: Properly expose WindowsRegistryFinder in importlib (and use the | |
| correct term for it). Original patch by Eric Snow. | |
| - Issue #15502: Bring the importlib ABCs into line with the current state of the | |
| import protocols given PEP 420. Original patch by Eric Snow. | |
| - Issue #15499: Launching a webbrowser in Unix used to sleep for a few seconds. | |
| Original patch by Anton Barkovsky. | |
| - Issue #15463: The faulthandler module truncates strings to 500 characters, | |
| instead of 100, to be able to display long file paths. | |
| - Issue #6056: Make `multiprocessing` use setblocking(True) on the sockets it | |
| uses. Original patch by J Derek Wilson. | |
| - Issue #15364: Fix sysconfig.get_config_var('srcdir') to be an absolute path. | |
| - Issue #15413: `os.times()` had disappeared under Windows. | |
| - Issue #15402: An issue in the struct module that caused `sys.getsizeof()` to | |
| return incorrect results for struct.Struct instances has been fixed. Initial | |
| patch by Serhiy Storchaka. | |
| - Issue #15232: When mangle_from is True, `email.Generator` now correctly | |
| mangles lines that start with 'From ' that occur in a MIME preamble or | |
| epilogue. | |
| - Issue #15094: Incorrectly placed #endif in _tkinter.c. Patch by Serhiy | |
| Storchaka. | |
| - Issue #13922: `argparse` no longer incorrectly strips '--'s that appear after | |
| the first one. | |
| - Issue #12353: `argparse` now correctly handles null argument values. | |
| - Issue #10017, issue #14998: Fix TypeError using pprint on dictionaries with | |
| user-defined types as keys or other unorderable keys. | |
| - Issue #15397: `inspect.getmodulename()` is now based directly on importlib via | |
| a new `importlib.machinery.all_suffixes()` API. | |
| - Issue #14635: `telnetlib` will use poll() rather than select() when possible to | |
| avoid failing due to the select() file descriptor limit. | |
| - Issue #15180: Clarify posixpath.join() error message when mixing str & bytes. | |
| - Issue #15343: pkgutil now includes an iter_importer_modules implementation for | |
| importlib.machinery.FileFinder (similar to the way it already handled | |
| zipimport.zipimporter). | |
| - Issue #15314: runpy now sets __main__.__loader__ correctly. | |
| - Issue #15357: The import emulation in pkgutil is now deprecated. pkgutil uses | |
| importlib internally rather than the emulation. | |
| - Issue #15233: Python now guarantees that callables registered with the atexit | |
| module will be called in a deterministic order. | |
| - Issue #15238: `shutil.copystat()` now copies Linux "extended attributes". | |
| - Issue #15230: runpy.run_path now correctly sets __package__ as described in | |
| the documentation. | |
| - Issue #15315: Support VS 2010 in distutils cygwincompiler. | |
| - Issue #15294: Fix a regression in pkgutil.extend_path()'s handling of nested | |
| namespace packages. | |
| - Issue #15056: `imp.cache_from_source()` and `imp.source_from_cache()` raise | |
| NotImplementedError when `sys.implementation.cache_tag` is set to None. | |
| - Issue #15256: Grammatical mistake in exception raised by `imp.find_module()`. | |
| - Issue #5931: `wsgiref` environ variable SERVER_SOFTWARE will specify an | |
| implementation specific term like CPython, Jython instead of generic "Python". | |
| - Issue #13248: Remove obsolete argument "max_buffer_size" of BufferedWriter and | |
| BufferedRWPair, from the io module. | |
| - Issue #13248: Remove obsolete argument "version" of `argparse.ArgumentParser`. | |
| - Issue #14814: Implement more consistent ordering and sorting behaviour for | |
| ipaddress objects. | |
| - Issue #14814: `ipaddress` network objects correctly return NotImplemented when | |
| compared to arbitrary objects instead of raising TypeError. | |
| - Issue #14990: Correctly fail with SyntaxError on invalid encoding declaration. | |
| - Issue #14814: `ipaddress` now provides more informative error messages when | |
| constructing instances directly (changes permitted during beta due to | |
| provisional API status). | |
| - Issue #15247: `io.FileIO` now raises an error when given a file descriptor | |
| pointing to a directory. | |
| - Issue #15261: Stop os.stat(fd) crashing on Windows when fd not open. | |
| - Issue #15166: Implement `imp.get_tag()` using `sys.implementation.cache_tag`. | |
| - Issue #15210: Catch KeyError when `importlib.__init__()` can't find | |
| _frozen_importlib in sys.modules, not ImportError. | |
| - Issue #15030: `importlib.abc.PyPycLoader` now supports the new source size | |
| header field in .pyc files. | |
| - Issue #5346: Preserve permissions of mbox, MMDF and Babyl mailbox files on | |
| flush(). | |
| - Issue #10571: Fix the "--sign" option of distutils' upload command. Patch by | |
| Jakub Wilk. | |
| - Issue #9559: If messages were only added, a new file is no longer created and | |
| renamed over the old file when flush() is called on an mbox, MMDF or Babyl | |
| mailbox. | |
| - Issue #10924: Fixed `crypt.mksalt()` to use a RNG that is suitable for | |
| cryptographic purpose. | |
| - Issue #15184: Ensure consistent results of OS X configuration tailoring for | |
| universal builds by factoring out common OS X-specific customizations from | |
| sysconfig, distutils.sysconfig, distutils.util, and distutils.unixccompiler | |
| into a new module _osx_support. | |
| C API | |
| ----- | |
| - Issue #15610: `PyImport_ImportModuleEx()` now uses a 'level' of 0 instead of -1. | |
| - Issue #15169, issue #14599: Strip out the C implementation of | |
| `imp.source_from_cache()` used by PyImport_ExecCodeModuleWithPathnames() and | |
| used the Python code instead. Leads to PyImport_ExecCodeModuleObject() to not | |
| try to infer the source path from the bytecode path as | |
| PyImport_ExecCodeModuleWithPathnames() does. | |
| Extension Modules | |
| ----------------- | |
| - Issue #6493: An issue in ctypes on Windows that caused structure bitfields of | |
| type `ctypes.c_uint32` and width 32 to incorrectly be set has been fixed. | |
| - Issue #15194: Update libffi to the 3.0.11 release. | |
| IDLE | |
| ---- | |
| - Issue #13052: Fix IDLE crashing when replace string in Search/Replace dialog | |
| ended with ``\``. Patch by Roger Serwy. | |
| Tools/Demos | |
| ----------- | |
| - Issue #15458: python-config gets a new option --configdir to print the $LIBPL | |
| value. | |
| - Move importlib.test.benchmark to Tools/importbench. | |
| - Issue #12605: The gdb hooks for debugging CPython (within Tools/gdb) have been | |
| enhanced to show information on more C frames relevant to CPython within the | |
| "py-bt" and "py-bt-full" commands: | |
| * C frames that are waiting on the GIL | |
| * C frames that are garbage-collecting | |
| * C frames that are due to the invocation of a PyCFunction | |
| Documentation | |
| ------------- | |
| - Issue #15041: Update "see also" list in tkinter documentation. | |
| - Issue #15444: Use proper spelling for non-ASCII contributor names. Patch by | |
| Serhiy Storchaka. | |
| - Issue #15295: Reorganize and rewrite the documentation on the import system. | |
| - Issue #15230: Clearly document some of the limitations of the runpy module and | |
| nudge readers towards importlib when appropriate. | |
| - Issue #15053: Copy Python 3.3 import lock change notice to all relevant | |
| functions in imp instead of just at the top of the relevant section. | |
| - Issue #15288: Link to the term "loader" in notes in pkgutil about how things | |
| won't work as expected in Python 3.3 and mark the requisite functions as | |
| "changed" since they will no longer work with modules directly imported by | |
| import itself. | |
| - Issue #13557: Clarify effect of giving two different namespaces to `exec()` or | |
| `execfile()`. | |
| - Issue #15250: Document that `filecmp.dircmp()` compares files shallowly. Patch | |
| contributed by Chris Jerdonek. | |
| - Issue #15442: Expose the default list of directories ignored by | |
| `filecmp.dircmp()` as a module attribute, and expand the list to more modern | |
| values. | |
| Tests | |
| ----- | |
| - Issue #15467: Move helpers for `__sizeof__()` tests into test_support. Patch | |
| by Serhiy Storchaka. | |
| - Issue #15320: Make iterating the list of tests thread-safe when running tests | |
| in multiprocess mode. Patch by Chris Jerdonek. | |
| - Issue #15168: Move `importlib.test` to `test.test_importlib`. | |
| - Issue #15091: Reactivate a test on UNIX which was failing thanks to a | |
| forgotten `importlib.invalidate_caches()` call. | |
| - Issue #15230: Adopted a more systematic approach in the runpy tests. | |
| - Issue #15300: Ensure the temporary test working directories are in the same | |
| parent folder when running tests in multiprocess mode from a Python build. | |
| Patch by Chris Jerdonek. | |
| - Issue #15284: Skip {send,recv}msg tests in test_socket when IPv6 is not | |
| enabled. Patch by Brian Brazil. | |
| - Issue #15277: Fix a resource leak in support.py when IPv6 is disabled. Patch | |
| by Brian Brazil. | |
| Build | |
| ----- | |
| - Issue #11715: Fix multiarch detection without having Debian development tools | |
| (dpkg-dev) installed. | |
| - Issue #15037: Build OS X installers with local copy of ncurses 5.9 libraries | |
| to avoid curses.unget_wch bug present in older versions of ncurses such as | |
| those shipped with OS X. | |
| - Issue #15560: Fix building _sqlite3 extension on OS X with an SDK. Also, for | |
| OS X installers, ensure consistent sqlite3 behavior and feature availability | |
| by building a local copy of libsqlite3 rather than depending on the wide range | |
| of versions supplied with various OS X releases. | |
| - Issue #8847: Disable COMDAT folding in Windows PGO builds. | |
| - Issue #14018: Fix OS X Tcl/Tk framework checking when using OS X SDKs. | |
| - Issue #16256: OS X installer now sets correct permissions for doc directory. | |
| - Issue #15431: Add _freeze_importlib project to regenerate importlib.h on | |
| Windows. Patch by Kristján Valur Jónsson. | |
| - Issue #14197: For OS X framework builds, ensure links to the shared library | |
| are created with the proper ABI suffix. | |
| - Issue #14330: For cross builds, don't use host python, use host search paths | |
| for host compiler. | |
| - Issue #15235: Allow Berkeley DB versions up to 5.3 to build the dbm module. | |
| - Issue #15268: Search curses.h in /usr/include/ncursesw. | |
| What's New in Python 3.3.0 Beta 1? | |
| ================================== | |
| *Release date: 27-Jun-2012* | |
| Core and Builtins | |
| ----------------- | |
| - Fix a (most likely) very rare memory leak when calling main() and not being | |
| able to decode a command-line argument. | |
| - Issue #14815: Use Py_ssize_t instead of long for the object hash, to | |
| preserve all 64 bits of hash on Win64. | |
| - Issue #12268: File readline, readlines and read() or readall() methods | |
| no longer lose data when an underlying read system call is interrupted. | |
| IOError is no longer raised due to a read system call returning EINTR | |
| from within these methods. | |
| - Issue #11626: Add _SizeT functions to stable ABI. | |
| - Issue #15142: Fix reference leak when deallocating instances of types | |
| created using PyType_FromSpec(). | |
| - Issue #10053: Don't close FDs when FileIO.__init__ fails. Loosely based on | |
| the work by Hirokazu Yamamoto. | |
| - Issue #15096: Removed support for ur'' as the raw notation isn't | |
| compatible with Python 2.x's raw unicode strings. | |
| - Issue #13783: Generator objects now use the identifier APIs internally | |
| - Issue #14874: Restore charmap decoding speed to pre-PEP 393 levels. | |
| Patch by Serhiy Storchaka. | |
| - Issue #15026: utf-16 encoding is now significantly faster (up to 10x). | |
| Patch by Serhiy Storchaka. | |
| - Issue #11022: open() and io.TextIOWrapper are now calling | |
| locale.getpreferredencoding(False) instead of locale.getpreferredencoding() | |
| in text mode if the encoding is not specified. Don't change temporary the | |
| locale encoding using locale.setlocale(), use the current locale encoding | |
| instead of the user preferred encoding. | |
| - Issue #14673: Add Eric Snow's sys.implementation implementation. | |
| - Issue #15038: Optimize python Locks on Windows. | |
| Library | |
| ------- | |
| - Issue #12288: Consider '0' and '0.0' as valid initialvalue | |
| for tkinter SimpleDialog. | |
| - Issue #15512: Add a __sizeof__ implementation for parser. | |
| Patch by Serhiy Storchaka. | |
| - Issue #15469: Add a __sizeof__ implementation for deque objects. | |
| Patch by Serhiy Storchaka. | |
| - Issue #15489: Add a __sizeof__ implementation for BytesIO objects. | |
| Patch by Serhiy Storchaka. | |
| - Issue #15487: Add a __sizeof__ implementation for buffered I/O objects. | |
| Patch by Serhiy Storchaka. | |
| - Issue #15514: Correct __sizeof__ support for cpu_set. | |
| Patch by Serhiy Storchaka. | |
| - Issue #15177: Added dir_fd parameter to os.fwalk(). | |
| - Issue #15061: Re-implemented hmac.compare_digest() in C to prevent further | |
| timing analysis and to support all buffer protocol aware objects as well as | |
| ASCII only str instances safely. | |
| - Issue #15164: Change return value of platform.uname() from a | |
| plain tuple to a collections.namedtuple. | |
| - Support Mageia Linux in the platform module. | |
| - Issue #11678: Support Arch linux in the platform module. | |
| - Issue #15118: Change return value of os.uname() and os.times() from | |
| plain tuples to immutable iterable objects with named attributes | |
| (structseq objects). | |
| - Speed up _decimal by another 10-15% by caching the thread local context | |
| that was last accessed. In the pi benchmark (64-bit platform, prec=9), | |
| _decimal is now only 1.5x slower than float. | |
| - Remove the packaging module, which is not ready for prime time. | |
| - Issue #15154: Add "dir_fd" parameter to os.rmdir, remove "rmdir" | |
| parameter from os.remove / os.unlink. | |
| - Issue #4489: Add a shutil.rmtree that isn't susceptible to symlink attacks. | |
| It is used automatically on platforms supporting the necessary os.openat() | |
| and os.unlinkat() functions. Main code by Martin von Löwis. | |
| - Issue #15156: HTMLParser now uses the new "html.entities.html5" dictionary. | |
| - Issue #11113: add a new "html5" dictionary containing the named character | |
| references defined by the HTML5 standard and the equivalent Unicode | |
| character(s) to the html.entities module. | |
| - Issue #15114: the strict mode of HTMLParser and the HTMLParseError exception | |
| are deprecated now that the parser is able to parse invalid markup. | |
| - Issue #3665: \u and \U escapes are now supported in unicode regular | |
| expressions. Patch by Serhiy Storchaka. | |
| - Issue #15153: Added inspect.getgeneratorlocals to simplify white box | |
| testing of generator state updates | |
| - Issue #13062: Added inspect.getclosurevars to simplify testing stateful | |
| closures | |
| - Issue #11024: Fixes and additional tests for Time2Internaldate. | |
| - Issue #14626: Large refactoring of functions / parameters in the os module. | |
| Many functions now support "dir_fd" and "follow_symlinks" parameters; | |
| some also support accepting an open file descriptor in place of a path | |
| string. Added os.support_* collections as LBYL helpers. Removed many | |
| functions only previously seen in 3.3 alpha releases (often starting with | |
| "f" or "l", or ending with "at"). Originally suggested by Serhiy Storchaka; | |
| implemented by Larry Hastings. | |
| - Issue #15008: Implement PEP 362 "Signature Objects". | |
| Patch by Yury Selivanov. | |
| - Issue #15138: base64.urlsafe_{en,de}code() are now 3-4x faster. | |
| - Issue #444582: Add shutil.which, for finding programs on the system path. | |
| Original patch by Erik Demaine, with later iterations by Jan Killian | |
| and Brian Curtin. | |
| - Issue #14837: SSL errors now have ``library`` and ``reason`` attributes | |
| describing precisely what happened and in which OpenSSL submodule. The | |
| str() of a SSLError is also enhanced accordingly. | |
| - Issue #9527: datetime.astimezone() method will now supply a class | |
| timezone instance corresponding to the system local timezone when | |
| called with no arguments. | |
| - Issue #14653: email.utils.mktime_tz() no longer relies on system | |
| mktime() when timezone offset is supplied. | |
| - Issue #14684: zlib.compressobj() and zlib.decompressobj() now support the use | |
| of predefined compression dictionaries. Original patch by Sam Rushing. | |
| - Fix GzipFile's handling of filenames given as bytes objects. | |
| - Issue #14772: Return destination values from some shutil functions. | |
| - Issue #15064: Implement context management protocol for multiprocessing types | |
| - Issue #15101: Make pool finalizer avoid joining current thread. | |
| - Issue #14657: The frozen instance of importlib used for bootstrap is now | |
| also the module imported as importlib._bootstrap. | |
| - Issue #14055: Add __sizeof__ support to _elementtree. | |
| - Issue #15054: A bug in tokenize.tokenize that caused string literals | |
| with 'b' prefixes to be incorrectly tokenized has been fixed. | |
| Patch by Serhiy Storchaka. | |
| - Issue #15006: Allow equality comparison between naive and aware | |
| time or datetime objects. | |
| - Issue #15036: Mailbox no longer throws an error if a flush is done | |
| between operations when removing or changing multiple items in mbox, | |
| MMDF, or Babyl mailboxes. | |
| - Issue #14059: Implement multiprocessing.Barrier. | |
| - Issue #15061: The inappropriately named hmac.secure_compare has been | |
| renamed to hmac.compare_digest, restricted to operating on bytes inputs | |
| only and had its documentation updated to more accurately reflect both its | |
| intent and its limitations | |
| - Issue #13841: Make child processes exit using sys.exit() on Windows. | |
| - Issue #14936: curses_panel was converted to PEP 3121 and PEP 384 API. | |
| Patch by Robin Schreiber. | |
| - Issue #1667546: On platforms supporting tm_zone and tm_gmtoff fields | |
| in struct tm, time.struct_time objects returned by time.gmtime(), | |
| time.localtime() and time.strptime() functions now have tm_zone and | |
| tm_gmtoff attributes. Original patch by Paul Boddie. | |
| - Rename adjusted attribute to adjustable in time.get_clock_info() result. | |
| - Issue #3518: Remove references to non-existent BaseManager.from_address() | |
| method. | |
| - Issue #13857: Added textwrap.indent() function (initial patch by Ezra | |
| Berch) | |
| - Issue #2736: Added datetime.timestamp() method. | |
| - Issue #13854: Make multiprocessing properly handle non-integer | |
| non-string argument to SystemExit. | |
| - Issue #12157: Make pool.map() empty iterables correctly. Initial | |
| patch by mouad. | |
| - Issue #11823: disassembly now shows argument counts on calls with keyword args. | |
| - Issue #14711: os.stat_float_times() has been deprecated. | |
| - LZMAFile now accepts the modes "rb"/"wb"/"ab" as synonyms of "r"/"w"/"a". | |
| - The bz2 and lzma modules now each contain an open() function, allowing | |
| compressed files to readily be opened in text mode as well as binary mode. | |
| - BZ2File.__init__() and LZMAFile.__init__() now accept a file object as their | |
| first argument, rather than requiring a separate "fileobj" argument. | |
| - gzip.open() now accepts file objects as well as filenames. | |
| - Issue #14992: os.makedirs(path, exist_ok=True) would raise an OSError | |
| when the path existed and had the S_ISGID mode bit set when it was | |
| not explicitly asked for. This is no longer an exception as mkdir | |
| cannot control if the OS sets that bit for it or not. | |
| - Issue #14989: Make the CGI enable option to http.server available via command | |
| line. | |
| - Issue #14987: Add a missing import statement to inspect. | |
| - Issue #1079: email.header.decode_header now correctly parses all the examples | |
| in RFC2047. There is a necessary visible behavior change: the leading and/or | |
| trailing whitespace on ASCII parts is now preserved. | |
| - Issue #14969: Better handling of exception chaining in contextlib.ExitStack | |
| - Issue #14963: Convert contextlib.ExitStack.__exit__ to use an iterative | |
| algorithm (Patch by Alon Horev) | |
| - Issue #14785: Add sys._debugmallocstats() to help debug low-level memory | |
| allocation issues | |
| - Issue #14443: Ensure that .py files are byte-compiled with the correct Python | |
| executable within bdist_rpm even on older versions of RPM | |
| C-API | |
| ----- | |
| - Issue #15146: Add PyType_FromSpecWithBases. Patch by Robin Schreiber. | |
| - Issue #15042: Add PyState_AddModule and PyState_RemoveModule. Add version | |
| guard for Py_LIMITED_API additions. Patch by Robin Schreiber. | |
| - Issue #13783: Inadvertent additions to the public C API in the PEP 380 | |
| implementation have either been removed or marked as private interfaces. | |
| Extension Modules | |
| ----------------- | |
| - Issue #15000: Support the "unique" x32 architecture in _posixsubprocess.c. | |
| IDLE | |
| ---- | |
| - Issue #9803: Don't close IDLE on saving if breakpoint is open. | |
| Patch by Roger Serwy. | |
| - Issue #14962: Update text coloring in IDLE shell window after changing | |
| options. Patch by Roger Serwy. | |
| Documentation | |
| ------------- | |
| - Issue #15176: Clarified behavior, documentation, and implementation | |
| of os.listdir(). | |
| - Issue #14982: Document that pkgutil's iteration functions require the | |
| non-standard iter_modules() method to be defined by an importer (something | |
| the importlib importers do not define). | |
| - Issue #15081: Document PyState_FindModule. | |
| Patch by Robin Schreiber. | |
| - Issue #14814: Added first draft of ipaddress module API reference | |
| Tests | |
| ----- | |
| - Issue #15187: Bugfix: remove temporary directories test_shutil was leaving | |
| behind. | |
| - Issue #14769: test_capi now has SkipitemTest, which cleverly checks | |
| for "parity" between PyArg_ParseTuple() and the Python/getargs.c static | |
| function skipitem() for all possible "format units". | |
| - test_nntplib now tolerates being run from behind NNTP gateways that add | |
| "X-Antivirus" headers to articles | |
| - Issue #15043: test_gdb is now skipped entirely if gdb security settings | |
| block loading of the gdb hooks | |
| - Issue #14963: Add test cases for exception handling behaviour | |
| in contextlib.ExitStack (Initial patch by Alon Horev) | |
| Build | |
| ----- | |
| - Issue #13590: Improve support for OS X Xcode 4: | |
| * Try to avoid building Python or extension modules with problematic | |
| llvm-gcc compiler. | |
| * Since Xcode 4 removes ppc support, extension module builds now | |
| check for ppc compiler support and automatically remove ppc and | |
| ppc64 archs when not available. | |
| * Since Xcode 4 no longer install SDKs in default locations, | |
| extension module builds now revert to using installed headers | |
| and libs if the SDK used to build the interpreter is not | |
| available. | |
| * Update ./configure to use better defaults for universal builds; | |
| in particular, --enable-universalsdk=yes uses the Xcode default | |
| SDK and --with-universal-archs now defaults to "intel" if ppc | |
| not available. | |
| - Issue #14225: Fix Unicode support for curses (#12567) on OS X | |
| - Issue #14928: Fix importlib bootstrap issues by using a custom executable | |
| (Modules/_freeze_importlib) to build Python/importlib.h. | |
| What's New in Python 3.3.0 Alpha 4? | |
| =================================== | |
| *Release date: 31-May-2012* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #14835: Make plistlib output empty arrays & dicts like OS X. | |
| Patch by Sidney San Martín. | |
| - Issue #14744: Use the new _PyUnicodeWriter internal API to speed up | |
| str%args and str.format(args). | |
| - Issue #14930: Make memoryview objects weakrefable. | |
| - Issue #14775: Fix a potential quadratic dict build-up due to the garbage | |
| collector repeatedly trying to untrack dicts. | |
| - Issue #14857: fix regression in references to PEP 3135 implicit __class__ | |
| closure variable (Reopens issue #12370) | |
| - Issue #14712 (PEP 405): Virtual environments. Implemented by Vinay Sajip. | |
| - Issue #14660 (PEP 420): Namespace packages. Implemented by Eric Smith. | |
| - Issue #14494: Fix __future__.py and its documentation to note that | |
| absolute imports are the default behavior in 3.0 instead of 2.7. | |
| Patch by Sven Marnach. | |
| - Issue #9260: A finer-grained import lock. Most of the import sequence | |
| now uses per-module locks rather than the global import lock, eliminating | |
| well-known issues with threads and imports. | |
| - Issue #14624: UTF-16 decoding is now 3x to 4x faster on various inputs. | |
| Patch by Serhiy Storchaka. | |
| - asdl_seq and asdl_int_seq are now Py_ssize_t sized. | |
| - Issue #14133 (PEP 415): Implement suppression of __context__ display with an | |
| attribute on BaseException. This replaces the original mechanism of PEP 409. | |
| - Issue #14417: Mutating a dict during lookup now restarts the lookup instead | |
| of raising a RuntimeError (undoes issue #14205). | |
| - Issue #14738: Speed-up UTF-8 decoding on non-ASCII data. Patch by Serhiy | |
| Storchaka. | |
| - Issue #14700: Fix two broken and undefined-behaviour-inducing overflow checks | |
| in old-style string formatting. | |
| Library | |
| ------- | |
| - Issue #14690: Use monotonic clock instead of system clock in the sched, | |
| subprocess and trace modules. | |
| - Issue #14443: Tell rpmbuild to use the correct version of Python in | |
| bdist_rpm. Initial patch by Ross Lagerwall. | |
| - Issue #12515: email now registers a defect if it gets to EOF while parsing | |
| a MIME part without seeing the closing MIME boundary. | |
| - Issue #1672568: email now always decodes base64 payloads, adding padding and | |
| ignoring non-base64-alphabet characters if needed, and registering defects | |
| for any such problems. | |
| - Issue #14925: email now registers a defect when the parser decides that there | |
| is a missing header/body separator line. MalformedHeaderDefect, which the | |
| existing code would never actually generate, is deprecated. | |
| - Issue #10365: File open dialog now works instead of crashing even when | |
| the parent window is closed before the dialog. Patch by Roger Serwy. | |
| - Issue #8739: Updated smtpd to support RFC 5321, and added support for the | |
| RFC 1870 SIZE extension. | |
| - Issue #665194: Added a localtime function to email.utils to provide an | |
| aware local datetime for use in setting Date headers. | |
| - Issue #12586: Added new provisional policies that implement convenient | |
| unicode support for email headers. See What's New for details. | |
| - Issue #14731: Refactored email Policy framework to support full backward | |
| compatibility with Python 3.2 by default yet allow for the introduction of | |
| new features through new policies. Note that Policy.must_be_7bit is renamed | |
| to cte_type. | |
| - Issue #14876: Use user-selected font for highlight configuration. | |
| - Issue #14920: Fix the help(urllib.parse) failure on locale C on terminals. | |
| Have ascii characters in help. | |
| - Issue #14548: Make multiprocessing finalizers check pid before | |
| running to cope with possibility of gc running just after fork. | |
| - Issue #14036: Add an additional check to validate that port in urlparse does | |
| not go in illegal range and returns None. | |
| - Issue #14862: Add missing names to os.__all__ | |
| - Issue #14875: Use float('inf') instead of float('1e66666') in the json module. | |
| - Issue #13585: Added contextlib.ExitStack | |
| - PEP 3144, Issue #14814: Added the ipaddress module | |
| - Issue #14426: Correct the Date format in Expires attribute of Set-Cookie | |
| Header in Cookie.py. | |
| - Issue #14588: The types module now provide new_class() and prepare_class() | |
| functions to support PEP 3115 compliant dynamic class creation. Patch by | |
| Daniel Urban and Nick Coghlan. | |
| - Issue #13152: Allow specifying a custom tabsize for expanding tabs in | |
| textwrap. Patch by John Feuerstein. | |
| - Issue #14721: Send the correct 'Content-length: 0' header when the body is an | |
| empty string ''. Initial Patch contributed by Arve Knudsen. | |
| - Issue #14072: Fix parsing of 'tel' URIs in urlparse by making the check for | |
| ports stricter. | |
| - Issue #9374: Generic parsing of query and fragment portions of url for any | |
| scheme. Supported both by RFC3986 and RFC2396. | |
| - Issue #14798: Fix the functions in pyclbr to raise an ImportError | |
| when the first part of a dotted name is not a package. Patch by | |
| Xavier de Gaye. | |
| - Issue #12098: multiprocessing on Windows now starts child processes | |
| using the same sys.flags as the current process. Initial patch by | |
| Sergey Mezentsev. | |
| - Issue #13031: Small speed-up for tarfile when unzipping tarfiles. | |
| Patch by Justin Peel. | |
| - Issue #14780: urllib.request.urlopen() now has a ``cadefault`` argument | |
| to use the default certificate store. Initial patch by James Oakley. | |
| - Issue #14829: Fix bisect and range() indexing with large indices | |
| (>= 2 ** 32) under 64-bit Windows. | |
| - Issue #14732: The _csv module now uses PEP 3121 module initialization. | |
| Patch by Robin Schreiber. | |
| - Issue #14809: Add HTTP status codes introduced by RFC 6585 to http.server | |
| and http.client. Patch by EungJun Yi. | |
| - Issue #14777: tkinter may return undecoded UTF-8 bytes as a string when | |
| accessing the Tk clipboard. Modify clipboard_get() to first request type | |
| UTF8_STRING when no specific type is requested in an X11 windowing | |
| environment, falling back to the current default type STRING if that fails. | |
| Original patch by Thomas Kluyver. | |
| - Issue #14773: Fix os.fwalk() failing on dangling symlinks. | |
| - Issue #12541: Be lenient with quotes around Realm field of HTTP Basic | |
| Authentication in urllib2. | |
| - Issue #14807: move undocumented tarfile.filemode() to stat.filemode() and add | |
| doc entry. Add tarfile.filemode alias with deprecation warning. | |
| - Issue #13815: TarFile.extractfile() now returns io.BufferedReader objects. | |
| - Issue #14532: Add a secure_compare() helper to the hmac module, to mitigate | |
| timing attacks. Patch by Jon Oberheide. | |
| - Add importlib.util.resolve_name(). | |
| - Issue #14366: Support lzma compression in zip files. | |
| Patch by Serhiy Storchaka. | |
| - Issue #13959: Introduce importlib.find_loader() and document | |
| imp.find_module/load_module as deprecated. | |
| - Issue #14082: shutil.copy2() now copies extended attributes, if possible. | |
| Patch by Hynek Schlawack. | |
| - Issue #13959: Make importlib.abc.FileLoader.load_module()/get_filename() and | |
| importlib.machinery.ExtensionFileLoader.load_module() have their single | |
| argument be optional. Allows for the replacement (and thus deprecation) of | |
| imp.load_source()/load_package()/load_compiled(). | |
| - Issue #13959: imp.get_suffixes() has been deprecated in favour of the new | |
| attributes on importlib.machinery: SOURCE_SUFFIXES, DEBUG_BYTECODE_SUFFIXES, | |
| OPTIMIZED_BYTECODE_SUFFIXES, BYTECODE_SUFFIXES, and EXTENSION_SUFFIXES. This | |
| led to an indirect deprecation of inspect.getmoduleinfo(). | |
| - Issue #14662: Prevent shutil failures on OS X when destination does not | |
| support chflag operations. Patch by Hynek Schlawack. | |
| - Issue #14157: Fix time.strptime failing without a year on February 29th. | |
| Patch by Hynek Schlawack. | |
| - Issue #14753: Make multiprocessing's handling of negative timeouts | |
| the same as it was in Python 3.2. | |
| - Issue #14583: Fix importlib bug when a package's __init__.py would first | |
| import one of its modules then raise an error. | |
| - Issue #14741: Fix missing support for Ellipsis ('...') in parser module. | |
| - Issue #14697: Fix missing support for set displays and set comprehensions in | |
| parser module. | |
| - Issue #14701: Fix missing support for 'raise ... from' in parser module. | |
| - Add support for timeouts to the acquire() methods of | |
| multiprocessing's lock/semaphore/condition proxies. | |
| - Issue #13989: Add support for text mode to gzip.open(). | |
| - Issue #14127: The os.stat() result object now provides three additional | |
| fields: st_ctime_ns, st_mtime_ns, and st_atime_ns, providing those times as an | |
| integer with nanosecond resolution. The functions os.utime(), os.lutimes(), | |
| and os.futimes() now accept a new parameter, ns, which accepts mtime and atime | |
| as integers with nanosecond resolution. | |
| - Issue #14127 and #10148: shutil.copystat now preserves exact mtime and atime | |
| on filesystems providing nanosecond resolution. | |
| IDLE | |
| ---- | |
| - Issue #14958: Change IDLE syntax highlighting to recognize all string and | |
| byte literals supported in Python 3.3. | |
| - Issue #10997: Prevent a duplicate entry in IDLE's "Recent Files" menu. | |
| - Issue #14929: Stop IDLE 3.x from closing on Unicode decode errors when | |
| grepping. Patch by Roger Serwy. | |
| - Issue #12510: Attempting to get invalid tooltip no longer closes IDLE. | |
| Other tooltipss have been corrected or improved and the number of tests | |
| has been tripled. Original patch by Roger Serwy. | |
| Tools/Demos | |
| ----------- | |
| - Issue #14695: Bring Tools/parser/unparse.py support up to date with | |
| the Python 3.3 Grammar. | |
| Build | |
| ----- | |
| - Issue #14472: Update .gitignore. Patch by Matej Cepl. | |
| - Upgrade Windows library versions: bzip 1.0.6, OpenSSL 1.0.1c. | |
| - Issue #14693: Under non-Windows platforms, hashlib's fallback modules are | |
| always compiled, even if OpenSSL is present at build time. | |
| - Issue #13210: Windows build now uses VS2010, ported from VS2008. | |
| C-API | |
| ----- | |
| - Issue #14705: The PyArg_Parse() family of functions now support the 'p' format | |
| unit, which accepts a "boolean predicate" argument. It converts any Python | |
| value into an integer--0 if it is "false", and 1 otherwise. | |
| Documentation | |
| ------------- | |
| - Issue #14863: Update the documentation of os.fdopen() to reflect the | |
| fact that it's only a thin wrapper around open() anymore. | |
| - Issue #14588: The language reference now accurately documents the Python 3 | |
| class definition process. Patch by Nick Coghlan. | |
| - Issue #14943: Correct a default argument value for winreg.OpenKey | |
| and correctly list the argument names in the function's explanation. | |
| What's New in Python 3.3.0 Alpha 3? | |
| =================================== | |
| *Release date: 01-May-2012* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #14699: Fix calling the classmethod descriptor directly. | |
| - Issue #14433: Prevent msvcrt crash in interactive prompt when stdin is closed. | |
| - Issue #14521: Make result of float('nan') and float('-nan') more consistent | |
| across platforms. | |
| - Issue #14646: __import__() sets __loader__ if the loader did not. | |
| - Issue #14605: No longer have implicit entries in sys.meta_path. If | |
| sys.meta_path is found to be empty, raise ImportWarning. | |
| - Issue #14605: No longer have implicit entries in sys.path_hooks. If | |
| sys.path_hooks is found to be empty, a warning will be raised. None is now | |
| inserted into sys.path_importer_cache if no finder was discovered. This also | |
| means imp.NullImporter is no longer implicitly used. | |
| - Issue #13903: Implement PEP 412. Individual dictionary instances can now share | |
| their keys with other dictionaries. Classes take advantage of this to share | |
| their instance dictionary keys for improved memory and performance. | |
| - Issue #11603 (again): Setting __repr__ to __str__ now raises a RuntimeError | |
| when repr() or str() is called on such an object. | |
| - Issue #14658: Fix binding a special method to a builtin implementation of a | |
| special method with a different name. | |
| - Issue #14630: Fix a memory access bug for instances of a subclass of int | |
| with value 0. | |
| - Issue #14339: Speed improvements to bin, oct and hex functions. Patch by | |
| Serhiy Storchaka. | |
| - Issue #14385: It is now possible to use a custom type for the __builtins__ | |
| namespace, instead of a dict. It can be used for sandboxing for example. | |
| Raise also a NameError instead of ImportError if __build_class__ name if not | |
| found in __builtins__. | |
| - Issue #12599: Be more strict in accepting None compared to a false-like | |
| object for importlib.util.module_for_loader and | |
| importlib.machinery.PathFinder. | |
| - Issue #14612: Fix jumping around with blocks by setting f_lineno. | |
| - Issue #14592: Attempting a relative import w/o __package__ or __name__ set in | |
| globals raises a KeyError. | |
| - Issue #14607: Fix keyword-only arguments which started with ``__``. | |
| - Issue #10854: The ImportError raised when an extension module on Windows | |
| fails to import now uses the new path and name attributes from | |
| Issue #1559549. | |
| - Issue #13889: Check and (if necessary) set FPU control word before calling | |
| any of the dtoa.c string <-> float conversion functions, on MSVC builds of | |
| Python. This fixes issues when embedding Python in a Delphi app. | |
| - __import__() now matches PEP 328 and documentation by defaulting 'index' to 0 | |
| instead of -1 and removing support for negative values. | |
| - Issue #2377: Make importlib the implementation of __import__(). | |
| - Issue #1559549: ImportError now has 'name' and 'path' attributes that are set | |
| using keyword arguments to its constructor. They are currently not set by | |
| import as they are meant for use by importlib. | |
| - Issue #14474: Save and restore exception state in thread.start_new_thread() | |
| while writing error message if the thread leaves an unhandled exception. | |
| - Issue #13019: Fix potential reference leaks in bytearray.extend(). Patch | |
| by Suman Saha. | |
| Library | |
| ------- | |
| - Issue #14768: os.path.expanduser('~/a') doesn't work correctly when HOME is '/'. | |
| - Issue #14371: Support bzip2 in zipfile module. Patch by Serhiy Storchaka. | |
| - Issue #13183: Fix pdb skipping frames after hitting a breakpoint and running | |
| step. Patch by Xavier de Gaye. | |
| - Issue #14696: Fix parser module to understand 'nonlocal' declarations. | |
| - Issue #10941: Fix imaplib.Internaldate2tuple to produce correct result near | |
| the DST transition. Patch by Joe Peterson. | |
| - Issue #9154: Fix parser module to understand function annotations. | |
| - Issue #6085: In http.server.py SimpleHTTPServer.address_string returns the | |
| client ip address instead client hostname. Patch by Charles-François Natali. | |
| - Issue #14309: Deprecate time.clock(), use time.perf_counter() or | |
| time.process_time() instead. | |
| - Issue #14428: Implement the PEP 418. Add time.get_clock_info(), | |
| time.perf_counter() and time.process_time() functions, and rename | |
| time.steady() to time.monotonic(). | |
| - Issue #14646: importlib.util.module_for_loader() now sets __loader__ and | |
| __package__ (when possible). | |
| - Issue #14664: It is now possible to use @unittest.skip{If,Unless} on a | |
| test class that doesn't inherit from TestCase (i.e. a mixin). | |
| - Issue #4892: multiprocessing Connections can now be transferred over | |
| multiprocessing Connections. Patch by Richard Oudkerk (sbt). | |
| - Issue #14160: TarFile.extractfile() failed to resolve symbolic links when | |
| the links were not located in an archive subdirectory. | |
| - Issue #14638: pydoc now treats non-string __name__ values as if they | |
| were missing, instead of raising an error. | |
| - Issue #13684: Fix httplib tunnel issue of infinite loops for certain sites | |
| which send EOF without trailing \r\n. | |
| - Issue #14605: Add importlib.abc.FileLoader, importlib.machinery.(FileFinder, | |
| SourceFileLoader, SourcelessFileLoader, ExtensionFileLoader). | |
| - Issue #13959: imp.cache_from_source()/source_from_cache() now follow | |
| os.path.join()/split() semantics for path manipulation instead of its prior, | |
| custom semantics of caring the right-most path separator forward in path | |
| joining. | |
| - Issue #2193: Allow ":" character in Cookie NAME values. | |
| - Issue #14629: tokenizer.detect_encoding will specify the filename in the | |
| SyntaxError exception if found at readline.__self__.name. | |
| - Issue #14629: Raise SyntaxError in tokenizer.detect_encoding if the | |
| first two lines have non-UTF-8 characters without an encoding declaration. | |
| - Issue #14308: Fix an exception when a "dummy" thread is in the threading | |
| module's active list after a fork(). | |
| - Issue #11750: The Windows API functions scattered in the _subprocess and | |
| _multiprocessing.win32 modules now live in a single module "_winapi". | |
| Patch by sbt. | |
| - Issue #14087: multiprocessing: add Condition.wait_for(). Patch by sbt. | |
| - Issue #14538: HTMLParser can now parse correctly start tags that contain | |
| a bare '/'. | |
| - Issue #14452: SysLogHandler no longer inserts a UTF-8 BOM into the message. | |
| - Issue #14386: Expose the dict_proxy internal type as types.MappingProxyType. | |
| - Issue #13959: Make imp.reload() always use a module's __loader__ to perform | |
| the reload. | |
| - Issue #13959: Add imp.py and rename the built-in module to _imp, allowing for | |
| re-implementing parts of the module in pure Python. | |
| - Issue #13496: Fix potential overflow in bisect.bisect algorithm when applied | |
| to a collection of size > sys.maxsize / 2. | |
| - Have importlib take advantage of ImportError's new 'name' and 'path' | |
| attributes. | |
| - Issue #14399: zipfile now recognizes that the archive has been modified even | |
| if only the comment is changed. In addition, the TypeError that results from | |
| trying to set a non-binary value as a comment is now raised at the time | |
| the comment is set rather than at the time the zipfile is written. | |
| - trace.CoverageResults.is_ignored_filename() now ignores any name that starts | |
| with "<" and ends with ">" instead of special-casing "<string>" and | |
| "<doctest ". | |
| - Issue #12537: The mailbox module no longer depends on knowledge of internal | |
| implementation details of the email package Message object. | |
| - Issue #7978: socketserver now restarts the select() call when EINTR is | |
| returned. This avoids crashing the server loop when a signal is received. | |
| Patch by Jerzy Kozera. | |
| - Issue #14522: Avoid duplicating socket handles in multiprocessing.connection. | |
| Patch by sbt. | |
| - Don't Py_DECREF NULL variable in io.IncrementalNewlineDecoder. | |
| - Issue #3033: Add displayof parameter to tkinter font. Patch by Guilherme Polo. | |
| - Issue #14482: Raise a ValueError, not a NameError, when trying to create | |
| a multiprocessing Client or Listener with an AF_UNIX type address under | |
| Windows. Patch by Popa Claudiu. | |
| - Issue #802310: Generate always unique tkinter font names if not directly passed. | |
| - Issue #14151: Raise a ValueError, not a NameError, when trying to create | |
| a multiprocessing Client or Listener with an AF_PIPE type address under | |
| non-Windows platforms. Patch by Popa Claudiu. | |
| - Issue #14493: Use gvfs-open or xdg-open in webbrowser. | |
| Build | |
| ----- | |
| - "make touch" will now touch generated files that are checked into Mercurial, | |
| after a "hg update" which failed to bring the timestamps into the right order. | |
| Tests | |
| ----- | |
| - Issue #14026: In test_cmd_line_script, check that sys.argv is populated | |
| correctly for the various invocation approaches (Patch by Jason Yeo) | |
| - Issue #14032: Fix incorrect variable name in test_cmd_line_script debugging | |
| message (Patch by Jason Yeo) | |
| - Issue #14589: Update certificate chain for sha256.tbs-internet.com, fixing | |
| a test failure in test_ssl. | |
| - Issue #14355: Regrtest now supports the standard unittest test loading, and | |
| will use it if a test file contains no `test_main` method. | |
| IDLE | |
| ---- | |
| - Issue #8515: Set __file__ when run file in IDLE. | |
| Initial patch by Bruce Frederiksen. | |
| - Issue #14496: Fix wrong name in idlelib/tabbedpages.py. | |
| Patch by Popa Claudiu. | |
| Tools / Demos | |
| ------------- | |
| - Issue #3561: The Windows installer now has an option, off by default, for | |
| placing the Python installation into the system "Path" environment variable. | |
| - Issue #13165: stringbench is now available in the Tools/stringbench folder. | |
| It used to live in its own SVN project. | |
| C-API | |
| ----- | |
| - Issue #14098: New functions PyErr_GetExcInfo and PyErr_SetExcInfo. | |
| Patch by Stefan Behnel. | |
| What's New in Python 3.3.0 Alpha 2? | |
| =================================== | |
| *Release date: 01-Apr-2012* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #1683368: object.__new__ and object.__init__ raise a TypeError if they | |
| are passed arguments and their complementary method is not overridden. | |
| - Issue #14378: Fix compiling ast.ImportFrom nodes with a "__future__" string as | |
| the module name that was not interned. | |
| - Issue #14331: Use significantly less stack space when importing modules by | |
| allocating path buffers on the heap instead of the stack. | |
| - Issue #14334: Prevent in a segfault in type.__getattribute__ when it was not | |
| passed strings. | |
| - Issue #1469629: Allow cycles through an object's __dict__ slot to be | |
| collected. (For example if ``x.__dict__ is x``). | |
| - Issue #14205: dict lookup raises a RuntimeError if the dict is modified | |
| during a lookup. | |
| - Issue #14220: When a generator is delegating to another iterator with the | |
| yield from syntax, it needs to have its ``gi_running`` flag set to True. | |
| - Issue #14435: Remove dedicated block allocator from floatobject.c and rely | |
| on the PyObject_Malloc() api like all other objects. | |
| - Issue #14471: Fix a possible buffer overrun in the winreg module. | |
| - Issue #14288: Allow the serialization of builtin iterators | |
| Library | |
| ------- | |
| - Issue #14300: Under Windows, sockets created using socket.dup() now allow | |
| overlapped I/O. Patch by sbt. | |
| - Issue #13872: socket.detach() now marks the socket closed (as mirrored | |
| in the socket repr()). Patch by Matt Joiner. | |
| - Issue #14406: Fix a race condition when using ``concurrent.futures.wait( | |
| return_when=ALL_COMPLETED)``. Patch by Matt Joiner. | |
| - Issue #5136: deprecate old, unused functions from tkinter. | |
| - Issue #14416: syslog now defines the LOG_ODELAY and LOG_AUTHPRIV constants | |
| if they are defined in <syslog.h>. | |
| - Issue #14295: Add unittest.mock | |
| - Issue #7652: Add --with-system-libmpdec option to configure for linking | |
| the _decimal module against an installed libmpdec. | |
| - Issue #14380: MIMEText now defaults to utf-8 when passed non-ASCII unicode | |
| with no charset specified. | |
| - Issue #10340: asyncore - properly handle EINVAL in dispatcher constructor on | |
| OSX; avoid to call handle_connect in case of a disconnected socket which | |
| was not meant to connect. | |
| - Issue #14204: The ssl module now has support for the Next Protocol | |
| Negotiation extension, if available in the underlying OpenSSL library. | |
| Patch by Colin Marc. | |
| - Issue #3035: Unused functions from tkinter are marked as pending deprecated. | |
| - Issue #12757: Fix the skipping of doctests when python is run with -OO so | |
| that it works in unittest's verbose mode as well as non-verbose mode. | |
| - Issue #7652: Integrate the decimal floating point libmpdec library to speed | |
| up the decimal module. Performance gains of the new C implementation are | |
| between 10x and 100x, depending on the application. | |
| - Issue #14269: SMTPD now conforms to the RFC and requires a HELO command | |
| before MAIL, RCPT, or DATA. | |
| - Issue #13694: asynchronous connect in asyncore.dispatcher does not set addr | |
| attribute. | |
| - Issue #14344: fixed the repr of email.policy objects. | |
| - Issue #11686: Added missing entries to email package __all__ lists | |
| (mostly the new Bytes classes). | |
| - Issue #14335: multiprocessing's custom Pickler subclass now inherits from | |
| the C-accelerated implementation. Patch by sbt. | |
| - Issue #10484: Fix the CGIHTTPServer's PATH_INFO handling problem. | |
| - Issue #11199: Fix the with urllib which hangs on particular ftp urls. | |
| - Improve the memory utilization and speed of functools.lru_cache. | |
| - Issue #14222: Use the new time.steady() function instead of time.time() for | |
| timeout in queue and threading modules to not be affected of system time | |
| update. | |
| - Issue #13248: Remove lib2to3.pytree.Base.get_prefix/set_prefix. | |
| - Issue #14234: CVE-2012-0876: Randomize hashes of xml attributes in the hash | |
| table internal to the pyexpat module's copy of the expat library to avoid a | |
| denial of service due to hash collisions. Patch by David Malcolm with some | |
| modifications by the expat project. | |
| - Issue #12818: format address no longer needlessly \ escapes ()s in names when | |
| the name ends up being quoted. | |
| - Issue #14062: BytesGenerator now correctly folds Header objects, | |
| including using linesep when folding. | |
| - Issue #13839: When invoked on the command-line, the pstats module now | |
| accepts several filenames of profile stat files and merges them all. | |
| Patch by Matt Joiner. | |
| - Issue #14291: Email now defaults to utf-8 for non-ASCII unicode headers | |
| instead of raising an error. This fixes a regression relative to 2.7. | |
| - Issue #989712: Support using Tk without a mainloop. | |
| - Issue #3835: Refuse to use unthreaded Tcl in threaded Python. | |
| - Issue #2843: Add new Tk API to Tkinter. | |
| - Issue #14184: Increase the default stack size for secondary threads on | |
| Mac OS X to avoid interpreter crashes when using threads on 10.7. | |
| - Issue #14180: datetime.date.fromtimestamp(), | |
| datetime.datetime.fromtimestamp() and datetime.datetime.utcfromtimestamp() | |
| now raise an OSError instead of ValueError if localtime() or gmtime() failed. | |
| - Issue #14180: time.ctime(), gmtime(), time.localtime(), | |
| datetime.date.fromtimestamp(), datetime.datetime.fromtimestamp() and | |
| datetime.datetime.utcfromtimestamp() now raises an OverflowError, instead of | |
| a ValueError, if the timestamp does not fit in time_t. | |
| - Issue #14180: datetime.datetime.fromtimestamp() and | |
| datetime.datetime.utcfromtimestamp() now round microseconds towards zero | |
| instead of rounding to nearest with ties going away from zero. | |
| - Issue #10543: Fix unittest test discovery with Jython bytecode files. | |
| - Issue #1178863: Separate initialisation from setting when initializing | |
| Tkinter.Variables; harmonize exceptions to ValueError; only delete variables | |
| that have not been deleted; assert that variable names are strings. | |
| - Issue #14104: Implement time.monotonic() on Mac OS X, patch written by | |
| Nicholas Riley. | |
| - Issue #13394: the aifc module now uses warnings.warn() to signal warnings. | |
| - Issue #14252: Fix subprocess.Popen.terminate() to not raise an error under | |
| Windows when the child process has already exited. | |
| - Issue #14223: curses.addch() is no more limited to the range 0-255 when the | |
| Python curses is not linked to libncursesw. It was a regression introduced | |
| in Python 3.3a1. | |
| - Issue #14168: Check for presence of Element._attrs in minidom before | |
| accessing it. | |
| - Issue #12328: Fix multiprocessing's use of overlapped I/O on Windows. | |
| Also, add a multiprocessing.connection.wait(rlist, timeout=None) function | |
| for polling multiple objects at once. Patch by sbt. | |
| - Issue #14007: Accept incomplete TreeBuilder objects (missing start, end, | |
| data or close method) for the Python implementation as well. | |
| Drop the no-op TreeBuilder().xml() method from the C implementation. | |
| - Issue #14210: pdb now has tab-completion not only for command names, but | |
| also for their arguments, wherever possible. | |
| - Issue #14310: Sockets can now be with other processes on Windows using | |
| the api socket.socket.share() and socket.fromshare(). | |
| - Issue #10576: The gc module now has a 'callbacks' member that will get | |
| called when garbage collection takes place. | |
| Build | |
| ----- | |
| - Issue #14557: Fix extensions build on HP-UX. Patch by Adi Roiban. | |
| - Issue #14387: Do not include accu.h from Python.h. | |
| - Issue #14359: Only use O_CLOEXEC in _posixmodule.c if it is defined. | |
| Based on patch from Hervé Coatanhay. | |
| - Issue #14321: Do not run pgen during the build if files are up to date. | |
| Documentation | |
| ------------- | |
| - Issue #14034: added the argparse tutorial. | |
| - Issue #14324: Fix configure tests for cross builds. | |
| - Issue #14327: Call AC_CANONICAL_HOST in configure.ac and check in | |
| config.{guess,sub}. Don't use uname calls for cross builds. | |
| Extension Modules | |
| ----------------- | |
| - Issue #9041: An issue in ctypes.c_longdouble, ctypes.c_double, and | |
| ctypes.c_float that caused an incorrect exception to be returned in the | |
| case of overflow has been fixed. | |
| - Issue #14212: The re module didn't retain a reference to buffers it was | |
| scanning, resulting in segfaults. | |
| - Issue #14259: The finditer() method of re objects did not take any | |
| keyword arguments, contrary to the documentation. | |
| - Issue #10142: Support for SEEK_HOLE/SEEK_DATA (for example, under ZFS). | |
| Tests | |
| ----- | |
| - Issue #14442: Add missing errno import in test_smtplib. | |
| - Issue #8315: (partial fix) python -m unittest test.test_email now works. | |
| What's New in Python 3.3.0 Alpha 1? | |
| =================================== | |
| *Release date: 05-Mar-2012* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #14172: Fix reference leak when marshalling a buffer-like object | |
| (other than a bytes object). | |
| - Issue #13521: dict.setdefault() now does only one lookup for the given key, | |
| making it "atomic" for many purposes. Patch by Filip Gruszczyński. | |
| - PEP 409, Issue #6210: "raise X from None" is now supported as a means of | |
| suppressing the display of the chained exception context. The chained | |
| context still remains available as the __context__ attribute. | |
| - Issue #10181: New memoryview implementation fixes multiple ownership | |
| and lifetime issues of dynamically allocated Py_buffer members (#9990) | |
| as well as crashes (#8305, #7433). Many new features have been added | |
| (See whatsnew/3.3), and the documentation has been updated extensively. | |
| The ndarray test object from _testbuffer.c implements all aspects of | |
| PEP-3118, so further development towards the complete implementation | |
| of the PEP can proceed in a test-driven manner. | |
| Thanks to Nick Coghlan, Antoine Pitrou and Pauli Virtanen for review | |
| and many ideas. | |
| - Issue #12834: Fix incorrect results of memoryview.tobytes() for | |
| non-contiguous arrays. | |
| - Issue #5231: Introduce memoryview.cast() method that allows changing | |
| format and shape without making a copy of the underlying memory. | |
| - Issue #14084: Fix a file descriptor leak when importing a module with a | |
| bad encoding. | |
| - Upgrade Unicode data to Unicode 6.1. | |
| - Issue #14040: Remove rarely used file name suffixes for C extensions | |
| (under POSIX mainly). | |
| - Issue #14051: Allow arbitrary attributes to be set of classmethod and | |
| staticmethod. | |
| - Issue #13703: oCERT-2011-003: Randomize hashes of str and bytes to protect | |
| against denial of service attacks due to hash collisions within the dict and | |
| set types. Patch by David Malcolm, based on work by Victor Stinner. | |
| - Issue #13020: Fix a reference leak when allocating a structsequence object | |
| fails. Patch by Suman Saha. | |
| - Issue #13908: Ready types returned from PyType_FromSpec. | |
| - Issue #11235: Fix OverflowError when trying to import a source file whose | |
| modification time doesn't fit in a 32-bit timestamp. | |
| - Issue #12705: A SyntaxError exception is now raised when attempting to | |
| compile multiple statements as a single interactive statement. | |
| - Fix the builtin module initialization code to store the init function for | |
| future reinitialization. | |
| - Issue #8052: The posix subprocess module would take a long time closing | |
| all possible file descriptors in the child process rather than just open | |
| file descriptors. It now closes only the open fds if possible for the | |
| default close_fds=True behavior. | |
| - Issue #13629: Renumber the tokens in token.h so that they match the indexes | |
| into _PyParser_TokenNames. | |
| - Issue #13752: Add a casefold() method to str. | |
| - Issue #13761: Add a "flush" keyword argument to the print() function, | |
| used to ensure flushing the output stream. | |
| - Issue #13645: pyc files now contain the size of the corresponding source | |
| code, to avoid timestamp collisions (especially on filesystems with a low | |
| timestamp resolution) when checking for freshness of the bytecode. | |
| - PEP 380, Issue #11682: Add "yield from <x>" to support easy delegation to | |
| subgenerators (initial patch by Greg Ewing, integration into 3.3 by | |
| Renaud Blanch, Ryan Kelly, Zbigniew Jędrzejewski-Szmek and Nick Coghlan) | |
| - Issue #13748: Raw bytes literals can now be written with the ``rb`` prefix | |
| as well as ``br``. | |
| - Issue #12736: Use full unicode case mappings for upper, lower, and title case. | |
| - Issue #12760: Add a create mode to open(). Patch by David Townshend. | |
| - Issue #13738: Simplify implementation of bytes.lower() and bytes.upper(). | |
| - Issue #13577: Built-in methods and functions now have a __qualname__. | |
| Patch by sbt. | |
| - Issue #6695: Full garbage collection runs now clear the freelist of set | |
| objects. Initial patch by Matthias Troffaes. | |
| - Fix OSError.__init__ and OSError.__new__ so that each of them can be | |
| overridden and take additional arguments (followup to issue #12555). | |
| - Fix the fix for issue #12149: it was incorrect, although it had the side | |
| effect of appearing to resolve the issue. Thanks to Mark Shannon for | |
| noticing. | |
| - Issue #13505: Pickle bytes objects in a way that is compatible with | |
| Python 2 when using protocols <= 2. | |
| - Issue #11147: Fix an unused argument in _Py_ANNOTATE_MEMORY_ORDER. (Fix | |
| given by Campbell Barton). | |
| - Issue #13503: Use a more efficient reduction format for bytearrays with | |
| pickle protocol >= 3. The old reduction format is kept with older protocols | |
| in order to allow unpickling under Python 2. Patch by Irmen de Jong. | |
| - Issue #7111: Python can now be run without a stdin, stdout or stderr | |
| stream. It was already the case with Python 2. However, the corresponding | |
| sys module entries are now set to None (instead of an unusable file object). | |
| - Issue #11849: Ensure that free()d memory arenas are really released | |
| on POSIX systems supporting anonymous memory mappings. Patch by | |
| Charles-François Natali. | |
| - PEP 3155 / issue #13448: Qualified name for classes and functions. | |
| - Issue #13436: Fix a bogus error message when an AST object was passed | |
| an invalid integer value. | |
| - Issue #13411: memoryview objects are now hashable when the underlying | |
| object is hashable. | |
| - Issue #13338: Handle all enumerations in _Py_ANNOTATE_MEMORY_ORDER | |
| to allow compiling extension modules with -Wswitch-enum on gcc. | |
| Initial patch by Floris Bruynooghe. | |
| - Issue #10227: Add an allocation cache for a single slice object. Patch by | |
| Stefan Behnel. | |
| - Issue #13393: BufferedReader.read1() now asks the full requested size to | |
| the raw stream instead of limiting itself to the buffer size. | |
| - Issue #13392: Writing a pyc file should now be atomic under Windows as well. | |
| - Issue #13333: The UTF-7 decoder now accepts lone surrogates (the encoder | |
| already accepts them). | |
| - Issue #13389: Full garbage collection passes now clear the freelists for | |
| list and dict objects. They already cleared other freelists in the | |
| interpreter. | |
| - Issue #13327: Remove the need for an explicit None as the second argument | |
| to os.utime, os.lutimes, os.futimes, os.futimens, os.futimesat, in | |
| order to update to the current time. Also added keyword argument | |
| handling to os.utimensat in order to remove the need for explicit None. | |
| - Issue #13350: Simplify some C code by replacing most usages of | |
| PyUnicode_Format by PyUnicode_FromFormat. | |
| - Issue #13342: input() used to ignore sys.stdin's and sys.stdout's unicode | |
| error handler in interactive mode (when calling into PyOS_Readline()). | |
| - Issue #9896: Add start, stop, and step attributes to range objects. | |
| - Issue #13343: Fix a SystemError when a lambda expression uses a global | |
| variable in the default value of a keyword-only argument: ``lambda *, | |
| arg=GLOBAL_NAME: None`` | |
| - Issue #12797: Added custom opener parameter to builtin open() and | |
| FileIO.open(). | |
| - Issue #10519: Avoid unnecessary recursive function calls in | |
| setobject.c. | |
| - Issue #10363: Deallocate global locks in Py_Finalize(). | |
| - Issue #13018: Fix reference leaks in error paths in dictobject.c. | |
| Patch by Suman Saha. | |
| - Issue #13201: Define '==' and '!=' to compare range objects based on | |
| the sequence of values they define (instead of comparing based on | |
| object identity). | |
| - Issue #1294232: In a few cases involving metaclass inheritance, the | |
| interpreter would sometimes invoke the wrong metaclass when building a new | |
| class object. These cases now behave correctly. Patch by Daniel Urban. | |
| - Issue #12753: Add support for Unicode name aliases and named sequences. | |
| Both ``unicodedata.lookup()`` and '\N{...}' now resolve aliases, | |
| and ``unicodedata.lookup()`` resolves named sequences too. | |
| - Issue #12170: The count(), find(), rfind(), index() and rindex() methods | |
| of bytes and bytearray objects now accept an integer between 0 and 255 | |
| as their first argument. Patch by Petri Lehtinen. | |
| - Issue #12604: VTRACE macro expanded to no-op in _sre.c to avoid compiler | |
| warnings. Patch by Josh Triplett and Petri Lehtinen. | |
| - Issue #12281: Rewrite the MBCS codec to handle correctly replace and ignore | |
| error handlers on all Windows versions. The MBCS codec is now supporting all | |
| error handlers, instead of only replace to encode and ignore to decode. | |
| - Issue #13188: When called without an explicit traceback argument, | |
| generator.throw() now gets the traceback from the passed exception's | |
| ``__traceback__`` attribute. Patch by Petri Lehtinen. | |
| - Issue #13146: Writing a pyc file is now atomic under POSIX. | |
| - Issue #7833: Extension modules built using distutils on Windows will no | |
| longer include a "manifest" to prevent them failing at import time in some | |
| embedded situations. | |
| - PEP 3151 / issue #12555: reworking the OS and IO exception hierarchy. | |
| - Add internal API for static strings (_Py_identifier et al.). | |
| - Issue #13063: the Windows error ERROR_NO_DATA (numbered 232 and described | |
| as "The pipe is being closed") is now mapped to POSIX errno EPIPE | |
| (previously EINVAL). | |
| - Issue #12911: Fix memory consumption when calculating the repr() of huge | |
| tuples or lists. | |
| - PEP 393: flexible string representation. Thanks to Torsten Becker for the | |
| initial implementation, and Victor Stinner for various bug fixes. | |
| - Issue #14081: The 'sep' and 'maxsplit' parameter to str.split, bytes.split, | |
| and bytearray.split may now be passed as keyword arguments. | |
| - Issue #13012: The 'keepends' parameter to str.splitlines may now be passed | |
| as a keyword argument: "my_string.splitlines(keepends=True)". The same | |
| change also applies to bytes.splitlines and bytearray.splitlines. | |
| - Issue #7732: Don't open a directory as a file anymore while importing a | |
| module. Ignore the directory if its name matches the module name (e.g. | |
| "__init__.py") and raise an ImportError instead. | |
| - Issue #13021: Missing decref on an error path. Thanks to Suman Saha for | |
| finding the bug and providing a patch. | |
| - Issue #12973: Fix overflow checks that relied on undefined behaviour in | |
| list_repeat (listobject.c) and islice_next (itertoolsmodule.c). These bugs | |
| caused test failures with recent versions of Clang. | |
| - Issue #12904: os.utime, os.futimes, os.lutimes, and os.futimesat now write | |
| atime and mtime with nanosecond precision on modern POSIX platforms. | |
| - Issue #12802: the Windows error ERROR_DIRECTORY (numbered 267) is now | |
| mapped to POSIX errno ENOTDIR (previously EINVAL). | |
| - Issue #9200: The str.is* methods now work with strings that contain non-BMP | |
| characters even in narrow Unicode builds. | |
| - Issue #12791: Break reference cycles early when a generator exits with | |
| an exception. | |
| - Issue #12773: Make __doc__ mutable on user-defined classes. | |
| - Issue #12766: Raise a ValueError when creating a class with a class variable | |
| that conflicts with a name in __slots__. | |
| - Issue #12266: Fix str.capitalize() to correctly uppercase/lowercase | |
| titlecased and cased non-letter characters. | |
| - Issue #12732: In narrow unicode builds, allow Unicode identifiers which fall | |
| outside the BMP. | |
| - Issue #12575: Validate user-generated AST before it is compiled. | |
| - Make type(None), type(Ellipsis), and type(NotImplemented) callable. They | |
| return the respective singleton instances. | |
| - Forbid summing bytes with sum(). | |
| - Verify the types of AST strings and identifiers provided by the user before | |
| compiling them. | |
| - Issue #12647: The None object now has a __bool__() method that returns False. | |
| Formerly, bool(None) returned False only because of special case logic | |
| in PyObject_IsTrue(). | |
| - Issue #12579: str.format_map() now raises a ValueError if used on a | |
| format string that contains positional fields. Initial patch by | |
| Julian Berman. | |
| - Issue #10271: Allow warnings.showwarning() be any callable. | |
| - Issue #11627: Fix segfault when __new__ on an exception returns a | |
| non-exception class. | |
| - Issue #12149: Update the method cache after a type's dictionary gets | |
| cleared by the garbage collector. This fixes a segfault when an instance | |
| and its type get caught in a reference cycle, and the instance's | |
| deallocator calls one of the methods on the type (e.g. when subclassing | |
| IOBase). Diagnosis and patch by Davide Rizzo. | |
| - Issue #9611, Issue #9015: FileIO.read() clamps the length to INT_MAX on Windows. | |
| - Issue #9642: Uniformize the tests on the availability of the mbcs codec, add | |
| a new HAVE_MBCS define. | |
| - Issue #9642: Fix filesystem encoding initialization: use the ANSI code page | |
| on Windows if the mbcs codec is not available, and fail with a fatal error if | |
| we cannot get the locale encoding (if nl_langinfo(CODESET) is not available) | |
| instead of using UTF-8. | |
| - When a generator yields, do not retain the caller's exception state on the | |
| generator. | |
| - Issue #12475: Prevent generators from leaking their exception state into the | |
| caller's frame as they return for the last time. | |
| - Issue #12291: You can now load multiple marshalled objects from a stream, | |
| with other data interleaved between marshalled objects. | |
| - Issue #12356: When required positional or keyword-only arguments are not | |
| given, produce an informative error message which includes the name(s) of the | |
| missing arguments. | |
| - Issue #12370: Fix super with no arguments when __class__ is overridden in the | |
| class body. | |
| - Issue #12084: os.stat on Windows now works properly with relative symbolic | |
| links when called from any directory. | |
| - Loosen type restrictions on the __dir__ method. __dir__ can now return any | |
| sequence, which will be converted to a list and sorted by dir(). | |
| - Issue #12265: Make error messages produced by passing an invalid set of | |
| arguments to a function more informative. | |
| - Issue #12225: Still allow Python to build if Python is not in its hg repo or | |
| mercurial is not installed. | |
| - Issue #1195: my_fgets() now always clears errors before calling fgets(). Fix | |
| the following case: sys.stdin.read() stopped with CTRL+d (end of file), | |
| raw_input() interrupted by CTRL+c. | |
| - Issue #12216: Allow unexpected EOF errors to happen on any line of the file. | |
| - Issue #12199: The TryExcept and TryFinally and AST nodes have been unified | |
| into a Try node. | |
| - Issue #9670: Increase the default stack size for secondary threads on | |
| Mac OS X and FreeBSD to reduce the chances of a crash instead of a | |
| "maximum recursion depth" RuntimeError exception. | |
| (patch by Ronald Oussoren) | |
| - Issue #12106: The use of the multiple-with shorthand syntax is now reflected | |
| in the AST. | |
| - Issue #12190: Try to use the same filename object when compiling unmarshalling | |
| a code objects in the same file. | |
| - Issue #12166: Move implementations of dir() specialized for various types into | |
| the __dir__() methods of those types. | |
| - Issue #5715: In socketserver, close the server socket in the child process. | |
| - Correct lookup of __dir__ on objects. Among other things, this causes errors | |
| besides AttributeError found on lookup to be propagated. | |
| - Issue #12060: Use sig_atomic_t type and volatile keyword in the signal | |
| module. Patch written by Charles-François Natali. | |
| - Issue #1746656: Added the if_nameindex, if_indextoname, if_nametoindex | |
| methods to the socket module. | |
| - Issue #12044: Fixed subprocess.Popen when used as a context manager to | |
| wait for the process to end when exiting the context to avoid unintentionally | |
| leaving zombie processes around. | |
| - Issue #1195: Fix input() if it is interrupted by CTRL+d and then CTRL+c, | |
| clear the end-of-file indicator after CTRL+d. | |
| - Issue #1856: Avoid crashes and lockups when daemon threads run while the | |
| interpreter is shutting down; instead, these threads are now killed when | |
| they try to take the GIL. | |
| - Issue #9756: When calling a method descriptor or a slot wrapper descriptor, | |
| the check of the object type doesn't read the __class__ attribute anymore. | |
| Fix a crash if a class override its __class__ attribute (e.g. a proxy of the | |
| str type). Patch written by Andreas Stührk. | |
| - Issue #10517: After fork(), reinitialize the TLS used by the PyGILState_* | |
| APIs, to avoid a crash with the pthread implementation in RHEL 5. Patch | |
| by Charles-François Natali. | |
| - Issue #10914: Initialize correctly the filesystem codec when creating a new | |
| subinterpreter to fix a bootstrap issue with codecs implemented in Python, as | |
| the ISO-8859-15 codec. | |
| - Issue #11918: OS/2 and VMS are no more supported because of the lack of | |
| maintainer. | |
| - Issue #6780: fix starts/endswith error message to mention that tuples are | |
| accepted too. | |
| - Issue #5057: fix a bug in the peepholer that led to non-portable pyc files | |
| between narrow and wide builds while optimizing BINARY_SUBSCR on non-BMP | |
| chars (e.g. "\U00012345"[0]). | |
| - Issue #11845: Fix typo in rangeobject.c that caused a crash in | |
| compute_slice_indices. Patch by Daniel Urban. | |
| - Issue #5673: Added a `timeout` keyword argument to subprocess.Popen.wait, | |
| subprocess.Popen.communicated, subprocess.call, subprocess.check_call, and | |
| subprocess.check_output. If the blocking operation takes more than `timeout` | |
| seconds, the `subprocess.TimeoutExpired` exception is raised. | |
| - Issue #11650: PyOS_StdioReadline() retries fgets() if it was interrupted | |
| (EINTR), for example if the program is stopped with CTRL+z on Mac OS X. Patch | |
| written by Charles-Francois Natali. | |
| - Issue #9319: Include the filename in "Non-UTF8 code ..." syntax error. | |
| - Issue #10785: Store the filename as Unicode in the Python parser. | |
| - Issue #11619: _PyImport_LoadDynamicModule() doesn't encode the path to bytes | |
| on Windows. | |
| - Issue #10998: Remove mentions of -Q, sys.flags.division_warning and | |
| Py_DivisionWarningFlag left over from Python 2. | |
| - Issue #11244: Remove an unnecessary peepholer check that was preventing | |
| negative zeros from being constant-folded properly. | |
| - Issue #11395: io.FileIO().write() clamps the data length to 32,767 bytes on | |
| Windows if the file is a TTY to workaround a Windows bug. The Windows console | |
| returns an error (12: not enough space error) on writing into stdout if | |
| stdout mode is binary and the length is greater than 66,000 bytes (or less, | |
| depending on heap usage). | |
| - Issue #11320: fix bogus memory management in Modules/getpath.c, leading to | |
| a possible crash when calling Py_SetPath(). | |
| - Issue #11432: A bug was introduced in subprocess.Popen on posix systems with | |
| 3.2.0 where the stdout or stderr file descriptor being the same as the stdin | |
| file descriptor would raise an exception. webbrowser.open would fail. fixed. | |
| - Issue #9856: Change object.__format__ with a non-empty format string | |
| to be a DeprecationWarning. In 3.2 it was a PendingDeprecationWarning. | |
| In 3.4 it will be a TypeError. | |
| - Issue #11244: The peephole optimizer is now able to constant-fold | |
| arbitrarily complex expressions. This also fixes a 3.2 regression where | |
| operations involving negative numbers were not constant-folded. | |
| - Issue #11450: Don't truncate hg version info in Py_GetBuildInfo() when | |
| there are many tags (e.g. when using mq). Patch by Nadeem Vawda. | |
| - Issue #11335: Fixed a memory leak in list.sort when the key function | |
| throws an exception. | |
| - Issue #8923: When a string is encoded to UTF-8 in strict mode, the result is | |
| cached into the object. Examples: str.encode(), str.encode('utf-8'), | |
| PyUnicode_AsUTF8String() and PyUnicode_AsEncodedString(unicode, "utf-8", | |
| NULL). | |
| - Issue #10829: Refactor PyUnicode_FromFormat(), use the same function to parse | |
| the format string in the 3 steps, fix crashes on invalid format strings. | |
| - Issue #13007: whichdb should recognize gdbm 1.9 magic numbers. | |
| - Issue #11286: Raise a ValueError from calling PyMemoryView_FromBuffer with | |
| a buffer struct having a NULL data pointer. | |
| - Issue #11272: On Windows, input() strips '\r' (and not only '\n'), and | |
| sys.stdin uses universal newline (replace '\r\n' by '\n'). | |
| - Issue #11828: startswith and endswith now accept None as slice index. | |
| Patch by Torsten Becker. | |
| - Issue #11168: Remove filename debug variable from PyEval_EvalFrameEx(). | |
| It encoded the Unicode filename to UTF-8, but the encoding fails on | |
| undecodable filename (on surrogate characters) which raises an unexpected | |
| UnicodeEncodeError on recursion limit. | |
| - Issue #11187: Remove bootstrap code (use ASCII) of | |
| PyUnicode_AsEncodedString(), it was replaced by a better fallback (use the | |
| locale encoding) in PyUnicode_EncodeFSDefault(). | |
| - Check for NULL result in PyType_FromSpec. | |
| - Issue #10516: New copy() and clear() methods for lists and bytearrays. | |
| - Issue #11386: bytearray.pop() now throws IndexError when the bytearray is | |
| empty, instead of OverflowError. | |
| - Issue #12380: The rjust, ljust and center methods of bytes and bytearray | |
| now accept a bytearray argument. | |
| Library | |
| ------- | |
| - Issue #14195: An issue that caused weakref.WeakSet instances to incorrectly | |
| return True for a WeakSet instance 'a' in both 'a < a' and 'a > a' has been | |
| fixed. | |
| - Issue #14166: Pickler objects now have an optional ``dispatch_table`` | |
| attribute which allows setting custom per-pickler reduction functions. | |
| Patch by sbt. | |
| - Issue #14177: marshal.loads() now raises TypeError when given a unicode | |
| string. Patch by Guilherme Gonçalves. | |
| - Issue #13550: Remove the debug machinery from the threading module: remove | |
| verbose arguments from all threading classes and functions. | |
| - Issue #14159: Fix the len() of weak containers (WeakSet, WeakKeyDictionary, | |
| WeakValueDictionary) to return a better approximation when some objects | |
| are dead or dying. Moreover, the implementation is now O(1) rather than | |
| O(n). | |
| - Issue #11841: Fix comparison bug with 'rc' versions in packaging.version. | |
| Patch by Filip Gruszczyński. | |
| - Issue #6884: Fix long-standing bugs with MANIFEST.in parsing in distutils | |
| on Windows. Also fixed in packaging. | |
| - Issue #8033: sqlite3: Fix 64-bit integer handling in user functions | |
| on 32-bit architectures. Initial patch by Philippe Devalkeneer. | |
| - HTMLParser is now able to handle slashes in the start tag. | |
| - Issue #13641: Decoding functions in the base64 module now accept ASCII-only | |
| unicode strings. Patch by Catalin Iacob. | |
| - Issue #14043: Speed up importlib's _FileFinder by at least 8x, and add a | |
| new importlib.invalidate_caches() function. | |
| - Issue #14001: CVE-2012-0845: xmlrpc: Fix an endless loop in | |
| SimpleXMLRPCServer upon malformed POST request. | |
| - Issue #13961: Move importlib over to using os.replace() for atomic renaming. | |
| - Do away with ambiguous level values (as suggested by PEP 328) in | |
| importlib.__import__() by raising ValueError when level < 0. | |
| - Issue #2489: pty.spawn could consume 100% cpu when it encountered an EOF. | |
| - Issue #13014: Fix a possible reference leak in SSLSocket.getpeercert(). | |
| - Issue #13777: Add PF_SYSTEM sockets on OS X. | |
| Patch by Michael Goderbauer. | |
| - Issue #13015: Fix a possible reference leak in defaultdict.__repr__. | |
| Patch by Suman Saha. | |
| - Issue #1326113: distutils' and packaging's build_ext commands option now | |
| correctly parses multiple values (separated by whitespace or commas) given | |
| to their --libraries option. | |
| - Issue #10287: nntplib now queries the server's CAPABILITIES first before | |
| sending MODE READER, and only sends it if not already in READER mode. | |
| Patch by Hynek Schlawack. | |
| - Issue #13993: HTMLParser is now able to handle broken end tags when | |
| strict=False. | |
| - Issue #13930: lib2to3 now supports writing converted output files to another | |
| directory tree as well as copying unchanged files and altering the file | |
| suffix. | |
| - Issue #9750: Fix sqlite3.Connection.iterdump on tables and fields | |
| with a name that is a keyword or contains quotes. Patch by Marko | |
| Kohtala. | |
| - Issue #10287: nntplib now queries the server's CAPABILITIES again after | |
| authenticating (since the result may change, according to RFC 4643). | |
| Patch by Hynek Schlawack. | |
| - Issue #13590: On OS X 10.7 and 10.6 with Xcode 4.2, building | |
| Distutils-based packages with C extension modules may fail because | |
| Apple has removed gcc-4.2, the version used to build python.org | |
| 64-bit/32-bit Pythons. If the user does not explicitly override | |
| the default C compiler by setting the CC environment variable, | |
| Distutils will now attempt to compile extension modules with clang | |
| if gcc-4.2 is required but not found. Also as a convenience, if | |
| the user does explicitly set CC, substitute its value as the default | |
| compiler in the Distutils LDSHARED configuration variable for OS X. | |
| (Note, the python.org 32-bit-only Pythons use gcc-4.0 and the 10.4u | |
| SDK, neither of which are available in Xcode 4. This change does not | |
| attempt to override settings to support their use with Xcode 4.) | |
| - Issue #13960: HTMLParser is now able to handle broken comments when | |
| strict=False. | |
| - When '' is a path (e.g. in sys.path), make sure __file__ uses the current | |
| working directory instead of '' in importlib. | |
| - Issue #13609: Add two functions to query the terminal size: | |
| os.get_terminal_size (low level) and shutil.get_terminal_size (high level). | |
| Patch by Zbigniew Jędrzejewski-Szmek. | |
| - Issue #13845: On Windows, time.time() now uses GetSystemTimeAsFileTime() | |
| instead of ftime() to have a resolution of 100 ns instead of 1 ms (the clock | |
| accuracy is between 0.5 ms and 15 ms). | |
| - Issue #13846: Add time.monotonic(), monotonic clock. | |
| - Issue #8184: multiprocessing: On Windows, don't set SO_REUSEADDR on | |
| Connection sockets, and set FILE_FLAG_FIRST_PIPE_INSTANCE on named pipes, to | |
| make sure two listeners can't bind to the same socket/pipe (or any existing | |
| socket/pipe). | |
| - Issue #10811: Fix recursive usage of cursors. Instead of crashing, | |
| raise a ProgrammingError now. | |
| - Issue #13734: Add os.fwalk(), a directory walking function yielding file | |
| descriptors. | |
| - Issue #2945: Make the distutils upload command aware of bdist_rpm products. | |
| - Issue #13712: pysetup create should not convert package_data to extra_files. | |
| - Issue #11805: package_data in setup.cfg should allow more than one value. | |
| - Issue #13676: Handle strings with embedded zeros correctly in sqlite3. | |
| - Issue #8828: Add new function os.replace(), for cross-platform renaming | |
| with overwriting. | |
| - Issue #13848: open() and the FileIO constructor now check for NUL | |
| characters in the file name. Patch by Hynek Schlawack. | |
| - Issue #13806: The size check in audioop decompression functions was too | |
| strict and could reject valid compressed data. Patch by Oleg Plakhotnyuk. | |
| - Issue #13812: When a multiprocessing Process child raises an exception, | |
| flush stderr after printing the exception traceback. | |
| - Issue #13885: CVE-2011-3389: the _ssl module would always disable the CBC | |
| IV attack countermeasure. | |
| - Issue #13847: time.localtime() and time.gmtime() now raise an OSError instead | |
| of ValueError on failure. time.ctime() and time.asctime() now raises an | |
| OSError if localtime() failed. time.clock() now raises a RuntimeError if the | |
| processor time used is not available or its value cannot be represented | |
| - Issue #13772: In os.symlink() under Windows, do not try to guess the link | |
| target's type (file or directory). The detection was buggy and made the | |
| call non-atomic (therefore prone to race conditions). | |
| - Issue #6631: Disallow relative file paths in urllib urlopen methods. | |
| - Issue #13722: Avoid silencing ImportErrors when initializing the codecs | |
| registry. | |
| - Issue #13781: Fix GzipFile bug that caused an exception to be raised when | |
| opening for writing using a fileobj returned by os.fdopen(). | |
| - Issue #13803: Under Solaris, distutils doesn't include bitness | |
| in the directory name. | |
| - Issue #10278: Add time.wallclock() function, monotonic clock. | |
| - Issue #13809: Fix regression where bz2 module wouldn't work when threads are | |
| disabled. Original patch by Amaury Forgeot d'Arc. | |
| - Issue #13589: Fix some serialization primitives in the aifc module. | |
| Patch by Oleg Plakhotnyuk. | |
| - Issue #13642: Unquote before b64encoding user:password during Basic | |
| Authentication. Patch contributed by Joonas Kuorilehto. | |
| - Issue #12364: Fix a hang in concurrent.futures.ProcessPoolExecutor. | |
| The hang would occur when retrieving the result of a scheduled future after | |
| the executor had been shut down. | |
| - Issue #13502: threading: Fix a race condition in Event.wait() that made it | |
| return False when the event was set and cleared right after. | |
| - Issue #9993: When the source and destination are on different filesystems, | |
| and the source is a symlink, shutil.move() now recreates a symlink on the | |
| destination instead of copying the file contents. Patch by Jonathan Niehof | |
| and Hynek Schlawack. | |
| - Issue #12926: Fix a bug in tarfile's link extraction. | |
| - Issue #13696: Fix the 302 Relative URL Redirection problem. | |
| - Issue #13636: Weak ciphers are now disabled by default in the ssl module | |
| (except when SSLv2 is explicitly asked for). | |
| - Issue #12715: Add an optional symlinks argument to shutil functions | |
| (copyfile, copymode, copystat, copy, copy2). When that parameter is | |
| true, symlinks aren't dereferenced and the operation instead acts on the | |
| symlink itself (or creates one, if relevant). Patch by Hynek Schlawack. | |
| - Add a flags parameter to select.epoll. | |
| - Issue #13626: Add support for SSL Diffie-Hellman key exchange, through the | |
| SSLContext.load_dh_params() method and the ssl.OP_SINGLE_DH_USE option. | |
| - Issue #11006: Don't issue low level warning in subprocess when pipe2() fails. | |
| - Issue #13620: Support for Chrome browser in webbrowser. Patch contributed | |
| by Arnaud Calmettes. | |
| - Issue #11829: Fix code execution holes in inspect.getattr_static for | |
| metaclasses with metaclasses. Patch by Andreas Stührk. | |
| - Issue #12708: Add starmap() and starmap_async() methods (similar to | |
| itertools.starmap()) to multiprocessing.Pool. Patch by Hynek Schlawack. | |
| - Issue #1785: Fix inspect and pydoc with misbehaving descriptors. | |
| - Issue #13637: "a2b" functions in the binascii module now accept ASCII-only | |
| unicode strings. | |
| - Issue #13634: Add support for querying and disabling SSL compression. | |
| - Issue #13627: Add support for SSL Elliptic Curve-based Diffie-Hellman | |
| key exchange, through the SSLContext.set_ecdh_curve() method and the | |
| ssl.OP_SINGLE_ECDH_USE option. | |
| - Issue #13635: Add ssl.OP_CIPHER_SERVER_PREFERENCE, so that SSL servers | |
| choose the cipher based on their own preferences, rather than on the | |
| client's. | |
| - Issue #11813: Fix inspect.getattr_static for modules. Patch by Andreas | |
| Stührk. | |
| - Issue #7502: Fix equality comparison for DocTestCase instances. Patch by | |
| Cédric Krier. | |
| - Issue #11870: threading: Properly reinitialize threads internal locks and | |
| condition variables to avoid deadlocks in child processes. | |
| - Issue #8035: urllib: Fix a bug where the client could remain stuck after a | |
| redirection or an error. | |
| - Issue #13560: os.strerror() now uses the current locale encoding instead of | |
| UTF-8. | |
| - Issue #8373: The filesystem path of AF_UNIX sockets now uses the filesystem | |
| encoding and the surrogateescape error handler, rather than UTF-8. Patch | |
| by David Watson. | |
| - Issue #10350: Read and save errno before calling a function which might | |
| overwrite it. Original patch by Hallvard B Furuseth. | |
| - Issue #11610: Introduce a more general way to declare abstract properties. | |
| - Issue #13591: A bug in importlib has been fixed that caused import_module | |
| to load a module twice. | |
| - Issue #13449: sched.scheduler.run() method has a new "blocking" parameter which | |
| when set to False makes run() execute the scheduled events due to expire | |
| soonest (if any) and then return. Patch by Giampaolo Rodolà. | |
| - Issue #8684: sched.scheduler class can be safely used in multi-threaded | |
| environments. Patch by Josiah Carlson and Giampaolo Rodolà. | |
| - Alias resource.error to OSError ala PEP 3151. | |
| - Issue #5689: Add support for lzma compression to the tarfile module. | |
| - Issue #13248: Turn 3.2's PendingDeprecationWarning into 3.3's | |
| DeprecationWarning. It covers 'cgi.escape', 'importlib.abc.PyLoader', | |
| 'importlib.abc.PyPycLoader', 'nntplib.NNTP.xgtitle', 'nntplib.NNTP.xpath', | |
| and private attributes of 'smtpd.SMTPChannel'. | |
| - Issue #5905, Issue #13560: time.strftime() is now using the current locale | |
| encoding, instead of UTF-8, if the wcsftime() function is not available. | |
| - Issue #13464: Add a readinto() method to http.client.HTTPResponse. Patch | |
| by Jon Kuhn. | |
| - tarfile.py: Correctly detect bzip2 compressed streams with blocksizes | |
| other than 900k. | |
| - Issue #13439: Fix many errors in turtle docstrings. | |
| - Issue #6715: Add a module 'lzma' for compression using the LZMA algorithm. | |
| Thanks to Per Øyvind Karlsen for the initial implementation. | |
| - Issue #13487: Make inspect.getmodule robust against changes done to | |
| sys.modules while it is iterating over it. | |
| - Issue #12618: Fix a bug that prevented py_compile from creating byte | |
| compiled files in the current directory. Initial patch by Sjoerd de Vries. | |
| - Issue #13444: When stdout has been closed explicitly, we should not attempt | |
| to flush it at shutdown and print an error. | |
| - Issue #12567: The curses module uses Unicode functions for Unicode arguments | |
| when it is linked to the ncurses library. It encodes also Unicode strings to | |
| the locale encoding instead of UTF-8. | |
| - Issue #12856: Ensure child processes do not inherit the parent's random | |
| seed for filename generation in the tempfile module. Patch by Brian | |
| Harring. | |
| - Issue #9957: SpooledTemporaryFile.truncate() now accepts an optional size | |
| parameter, as other file-like objects. Patch by Ryan Kelly. | |
| - Issue #13458: Fix a memory leak in the ssl module when decoding a | |
| certificate with a subjectAltName. Patch by Robert Xiao. | |
| - Issue #13415: os.unsetenv() doesn't ignore errors anymore. | |
| - Issue #13245: sched.scheduler class constructor's timefunc and | |
| delayfunct parameters are now optional. | |
| scheduler.enter and scheduler.enterabs methods gained a new kwargs parameter. | |
| Patch contributed by Chris Clark. | |
| - Issue #12328: Under Windows, refactor handling of Ctrl-C events and | |
| make _multiprocessing.win32.WaitForMultipleObjects interruptible when | |
| the wait_flag parameter is false. Patch by sbt. | |
| - Issue #13322: Fix BufferedWriter.write() to ensure that BlockingIOError is | |
| raised when the wrapped raw file is non-blocking and the write would block. | |
| Previous code assumed that the raw write() would raise BlockingIOError, but | |
| RawIOBase.write() is defined to returned None when the call would block. | |
| Patch by sbt. | |
| - Issue #13358: HTMLParser now calls handle_data only once for each CDATA. | |
| - Issue #4147: minidom's toprettyxml no longer adds whitespace around a text | |
| node when it is the only child of an element. Initial patch by Dan | |
| Kenigsberg. | |
| - Issue #13374: The Windows bytes API has been deprecated in the os module. Use | |
| Unicode filenames instead of bytes filenames to not depend on the ANSI code | |
| page anymore and to support any filename. | |
| - Issue #13297: Use bytes type to send and receive binary data through XMLRPC. | |
| - Issue #6397: Support "/dev/poll" polling objects in select module, | |
| under Solaris & derivatives. | |
| - Issues #1745761, #755670, #13357, #12629, #1200313: HTMLParser now correctly | |
| handles non-valid attributes, including adjacent and unquoted attributes. | |
| - Issue #13193: Fix distutils.filelist.FileList and packaging.manifest.Manifest | |
| under Windows. | |
| - Issue #13384: Remove unnecessary __future__ import in Lib/random.py | |
| - Issue #13149: Speed up append-only StringIO objects. | |
| - Issue #13373: multiprocessing.Queue.get() could sometimes block indefinitely | |
| when called with a timeout. Patch by Arnaud Ysmal. | |
| - Issue #13254: Fix Maildir initialization so that maildir contents | |
| are read correctly. | |
| - Issue #3067: locale.setlocale() now raises TypeError if the second | |
| argument is an invalid iterable. Its documentation and docstring | |
| were also updated. Initial patch by Jyrki Pulliainen. | |
| - Issue #13140: Fix the daemon_threads attribute of ThreadingMixIn. | |
| - Issue #13339: Fix compile error in posixmodule.c due to missing semicolon. | |
| Thanks to Robert Xiao. | |
| - Byte compilation in packaging is now isolated from the calling Python -B or | |
| -O options, instead of being disallowed under -B or buggy under -O. | |
| - Issue #10570: curses.putp() and curses.tparm() are now expecting a byte | |
| string, instead of a Unicode string. | |
| - Issue #13295: http.server now produces valid HTML 4.01 strict. | |
| - Issue #2892: preserve iterparse events in case of SyntaxError. | |
| - Issue #13287: urllib.request and urllib.error now contains an __all__ | |
| attribute to expose only relevant classes and functions. Patch by Florent | |
| Xicluna. | |
| - Issue #670664: Fix HTMLParser to correctly handle the content of | |
| ``<script>...</script>`` and ``<style>...</style>``. | |
| - Issue #10817: Fix urlretrieve function to raise ContentTooShortError even | |
| when reporthook is None. Patch by Jyrki Pulliainen. | |
| - Fix the xmlrpc.client user agent to return something similar to | |
| urllib.request user agent: "Python-xmlrpc/3.3". | |
| - Issue #13293: Better error message when trying to marshal bytes using | |
| xmlrpc.client. | |
| - Issue #13291: NameError in xmlrpc package. | |
| - Issue #13258: Use callable() built-in in the standard library. | |
| - Issue #13273: fix a bug that prevented HTMLParser to properly detect some | |
| tags when strict=False. | |
| - Issue #11183: Add finer-grained exceptions to the ssl module, so that | |
| you don't have to inspect the exception's attributes in the common case. | |
| - Issue #13216: Add cp65001 codec, the Windows UTF-8 (CP_UTF8). | |
| - Issue #13226: Add RTLD_xxx constants to the os module. These constants can be | |
| used with sys.setdlopenflags(). | |
| - Issue #10278: Add clock_getres(), clock_gettime() and CLOCK_xxx constants to | |
| the time module. time.clock_gettime(time.CLOCK_MONOTONIC) provides a | |
| monotonic clock | |
| - Issue #10332: multiprocessing: fix a race condition when a Pool is closed | |
| before all tasks have completed. | |
| - Issue #13255: wrong docstrings in array module. | |
| - Issue #8540: Remove deprecated Context._clamp attribute in Decimal module. | |
| - Issue #13235: Added DeprecationWarning to logging.warn() method and function. | |
| - Issue #9168: now smtpd is able to bind privileged port. | |
| - Issue #12529: fix cgi.parse_header issue on strings with double-quotes and | |
| semicolons together. Patch by Ben Darnell and Petri Lehtinen. | |
| - Issue #13227: functools.lru_cache() now has an option to distinguish | |
| calls with different argument types. | |
| - Issue #6090: zipfile raises a ValueError when a document with a timestamp | |
| earlier than 1980 is provided. Patch contributed by Petri Lehtinen. | |
| - Issue #13150: sysconfig no longer parses the Makefile and config.h files | |
| when imported, instead doing it at build time. This makes importing | |
| sysconfig faster and reduces Python startup time by 20%. | |
| - Issue #12448: smtplib now flushes stdout while running ``python -m smtplib`` | |
| in order to display the prompt correctly. | |
| - Issue #12454: The mailbox module is now using ASCII, instead of the locale | |
| encoding, to read and write .mh_sequences files. | |
| - Issue #13194: zlib.compressobj().copy() and zlib.decompressobj().copy() are | |
| now available on Windows. | |
| - Issue #1673007: urllib.request now supports HEAD request via new method argument. | |
| Patch contributions by David Stanek, Patrick Westerhoff and Ezio Melotti. | |
| - Issue #12386: packaging does not fail anymore when writing the RESOURCES | |
| file. | |
| - Issue #13158: Fix decoding and encoding of GNU tar specific base-256 number | |
| fields in tarfile. | |
| - Issue #13025: mimetypes is now reading MIME types using the UTF-8 encoding, | |
| instead of the locale encoding. | |
| - Issue #10653: On Windows, use strftime() instead of wcsftime() because | |
| wcsftime() doesn't format time zone correctly. | |
| - Issue #13150: The tokenize module doesn't compile large regular expressions | |
| at startup anymore. | |
| - Issue #11171: Fix distutils.sysconfig.get_makefile_filename when Python was | |
| configured with different prefix and exec-prefix. | |
| - Issue #11254: Teach distutils and packaging to compile .pyc and .pyo files in | |
| PEP 3147-compliant __pycache__ directories. | |
| - Issue #7367: Fix pkgutil.walk_paths to skip directories whose | |
| contents cannot be read. | |
| - Issue #3163: The struct module gets new format characters 'n' and 'N' | |
| supporting C integer types ``ssize_t`` and ``size_t``, respectively. | |
| - Issue #13099: Fix sqlite3.Cursor.lastrowid under a Turkish locale. | |
| Reported and diagnosed by Thomas Kluyver. | |
| - Issue #13087: BufferedReader.seek() now always raises UnsupportedOperation | |
| if the underlying raw stream is unseekable, even if the seek could be | |
| satisfied using the internal buffer. Patch by John O'Connor. | |
| - Issue #7689: Allow pickling of dynamically created classes when their | |
| metaclass is registered with copyreg. Patch by Nicolas M. Thiéry and Craig | |
| Citro. | |
| - Issue #13034: When decoding some SSL certificates, the subjectAltName | |
| extension could be unreported. | |
| - Issue #12306: Expose the runtime version of the zlib C library as a constant, | |
| ZLIB_RUNTIME_VERSION, in the zlib module. Patch by Torsten Landschoff. | |
| - Issue #12959: Add collections.ChainMap to collections.__all__. | |
| - Issue #8933: distutils' PKG-INFO files and packaging's METADATA files will | |
| now correctly report Metadata-Version: 1.1 instead of 1.0 if a Classifier or | |
| Download-URL field is present. | |
| - Issue #12567: Add curses.unget_wch() function. Push a character so the next | |
| get_wch() will return it. | |
| - Issue #9561: distutils and packaging now writes egg-info files using UTF-8, | |
| instead of the locale encoding. | |
| - Issue #8286: The distutils command sdist will print a warning message instead | |
| of crashing when an invalid path is given in the manifest template. | |
| - Issue #12841: tarfile unnecessarily checked the existence of numerical user | |
| and group ids on extraction. If one of them did not exist the respective id | |
| of the current user (i.e. root) was used for the file and ownership | |
| information was lost. | |
| - Issue #12888: Fix a bug in HTMLParser.unescape that prevented it to escape | |
| more than 128 entities. Patch by Peter Otten. | |
| - Issue #12878: Expose a __dict__ attribute on io.IOBase and its subclasses. | |
| - Issue #12494: On error, call(), check_call(), check_output() and | |
| getstatusoutput() functions of the subprocess module now kill the process, | |
| read its status (to avoid zombis) and close pipes. | |
| - Issue #12720: Expose low-level Linux extended file attribute functions in os. | |
| - Issue #10946: The distutils commands bdist_dumb, bdist_wininst and bdist_msi | |
| now respect a --skip-build option given to bdist. The packaging commands | |
| were fixed too. | |
| - Issue #12847: Fix a crash with negative PUT and LONG_BINPUT arguments in | |
| the C pickle implementation. | |
| - Issue #11564: Avoid crashes when trying to pickle huge objects or containers | |
| (more than 2**31 items). Instead, in most cases, an OverflowError is raised. | |
| - Issue #12287: Fix a stack corruption in ossaudiodev module when the FD is | |
| greater than FD_SETSIZE. | |
| - Issue #12839: Fix crash in zlib module due to version mismatch. | |
| Fix by Richard M. Tew. | |
| - Issue #9923: The mailcap module now correctly uses the platform path | |
| separator for the MAILCAP environment variable on non-POSIX platforms. | |
| - Issue #12835: Follow up to #6560 that unconditionally prevents use of the | |
| unencrypted sendmsg/recvmsg APIs on SSL wrapped sockets. Patch by David | |
| Watson. | |
| - Issue #12803: SSLContext.load_cert_chain() now accepts a password argument | |
| to be used if the private key is encrypted. Patch by Adam Simpkins. | |
| - Issue #11657: Fix sending file descriptors over 255 over a multiprocessing | |
| Pipe. | |
| - Issue #12811: tabnanny.check() now promptly closes checked files. Patch by | |
| Anthony Briggs. | |
| - Issue #6560: The sendmsg/recvmsg API is now exposed by the socket module | |
| when provided by the underlying platform, supporting processing of | |
| ancillary data in pure Python code. Patch by David Watson and Heiko Wundram. | |
| - Issue #12326: On Linux, sys.platform doesn't contain the major version | |
| anymore. It is now always 'linux', instead of 'linux2' or 'linux3' depending | |
| on the Linux version used to build Python. | |
| - Issue #12213: Fix a buffering bug with interleaved reads and writes that | |
| could appear on BufferedRandom streams. | |
| - Issue #12778: Reduce memory consumption when JSON-encoding a large | |
| container of many small objects. | |
| - Issue #12650: Fix a race condition where a subprocess.Popen could leak | |
| resources (FD/zombie) when killed at the wrong time. | |
| - Issue #12744: Fix inefficient representation of integers between 2**31 and | |
| 2**63 on systems with a 64-bit C "long". | |
| - Issue #12646: Add an 'eof' attribute to zlib.Decompress, to make it easier to | |
| detect truncated input streams. | |
| - Issue #11513: Fix exception handling ``tarfile.TarFile.gzopen()`` when | |
| the file cannot be opened. | |
| - Issue #12687: Fix a possible buffering bug when unpickling text mode | |
| (protocol 0, mostly) pickles. | |
| - Issue #10087: Fix the html output format of the calendar module. | |
| - Issue #13121: add support for inplace math operators to collections.Counter. | |
| - Add support for unary plus and unary minus to collections.Counter. | |
| - Issue #12683: urlparse updated to include svn as schemes that uses relative | |
| paths. (svn from 1.5 onwards support relative path). | |
| - Issue #12655: Expose functions from sched.h in the os module: sched_yield(), | |
| sched_setscheduler(), sched_getscheduler(), sched_setparam(), | |
| sched_get_min_priority(), sched_get_max_priority(), sched_rr_get_interval(), | |
| sched_getaffinity(), sched_setaffinity(). | |
| - Add ThreadError to threading.__all__. | |
| - Issues #11104, #8688: Fix the behavior of distutils' sdist command with | |
| manually-maintained MANIFEST files. | |
| - Issue #11281: smtplib.STMP gets source_address parameter, which adds the | |
| ability to bind to specific source address on a machine with multiple | |
| interfaces. Patch by Paulo Scardine. | |
| - Issue #12464: tempfile.TemporaryDirectory.cleanup() should not follow | |
| symlinks: fix it. Patch by Petri Lehtinen. | |
| - Issue #8887: "pydoc somebuiltin.somemethod" (or help('somebuiltin.somemethod') | |
| in Python code) now finds the doc of the method. | |
| - Issue #10968: Remove indirection in threading. The public names (Event, | |
| Condition, etc.) used to be factory functions returning instances of hidden | |
| classes (_Event, _Condition, etc.), because (if Guido recalls correctly) this | |
| code pre-dates the ability to subclass extension types. It is now possible | |
| to inherit from these classes, without having to import the private | |
| underscored names like multiprocessing did. | |
| - Issue #9723: Add shlex.quote functions, to escape filenames and command | |
| lines. | |
| - Issue #12603: Fix pydoc.synopsis() on files with non-negative st_mtime. | |
| - Issue #12514: Use try/finally to assure the timeit module restores garbage | |
| collections when it is done. | |
| - Issue #12607: In subprocess, fix issue where if stdin, stdout or stderr is | |
| given as a low fd, it gets overwritten. | |
| - Issue #12576: Fix urlopen behavior on sites which do not send (or obfuscates) | |
| ``Connection: close`` header. | |
| - Issue #12560: Build libpython.so on OpenBSD. Patch by Stefan Sperling. | |
| - Issue #1813: Fix codec lookup under Turkish locales. | |
| - Issue #12591: Improve support of "universal newlines" in the subprocess | |
| module: the piped streams can now be properly read from or written to. | |
| - Issue #12591: Allow io.TextIOWrapper to work with raw IO objects (without | |
| a read1() method), and add a *write_through* parameter to mandate | |
| unbuffered writes. | |
| - Issue #10883: Fix socket leaks in urllib.request when using FTP. | |
| - Issue #12592: Make Python build on OpenBSD 5 (and future major releases). | |
| - Issue #12372: POSIX semaphores are broken on AIX: don't use them. | |
| - Issue #12551: Provide a get_channel_binding() method on SSL sockets so as | |
| to get channel binding data for the current SSL session (only the | |
| "tls-unique" channel binding is implemented). This allows the implementation | |
| of certain authentication mechanisms such as SCRAM-SHA-1-PLUS. Patch by | |
| Jacek Konieczny. | |
| - Issue #665194: email.utils now has format_datetime and parsedate_to_datetime | |
| functions, allowing for round tripping of RFC2822 format dates. | |
| - Issue #12571: Add a plat-linux3 directory mirroring the plat-linux2 | |
| directory, so that "import DLFCN" and other similar imports work on | |
| Linux 3.0. | |
| - Issue #7484: smtplib no longer puts <> around addresses in VRFY and EXPN | |
| commands; they aren't required and in fact postfix doesn't support that form. | |
| - Issue #12273: Remove ast.__version__. AST changes can be accounted for by | |
| checking sys.version_info or sys._mercurial. | |
| - Silence spurious "broken pipe" tracebacks when shutting down a | |
| ProcessPoolExecutor. | |
| - Fix potential resource leaks in concurrent.futures.ProcessPoolExecutor | |
| by joining all queues and processes when shutdown() is called. | |
| - Issue #11603: Fix a crash when __str__ is rebound as __repr__. Patch by | |
| Andreas Stührk. | |
| - Issue #11321: Fix a crash with multiple imports of the _pickle module when | |
| embedding Python. Patch by Andreas Stührk. | |
| - Issue #6755: Add get_wch() method to curses.window class. Patch by Iñigo | |
| Serna. | |
| - Add cgi.closelog() function to close the log file. | |
| - Issue #12502: asyncore: fix polling loop with AF_UNIX sockets. | |
| - Issue #4376: ctypes now supports nested structures in an endian different than | |
| the parent structure. Patch by Vlad Riscutia. | |
| - Raise ValueError when attempting to set the _CHUNK_SIZE attribute of a | |
| TextIOWrapper to a huge value, not TypeError. | |
| - Issue #12504: Close file handles in a timely manner in packaging.database. | |
| This fixes a bug with the remove (uninstall) feature on Windows. | |
| - Issues #12169 and #10510: Factor out code used by various packaging commands | |
| to make HTTP POST requests, and make sure it uses CRLF. | |
| - Issue #12016: Multibyte CJK decoders now resynchronize faster. They only | |
| ignore the first byte of an invalid byte sequence. For example, | |
| b'\xff\n'.decode('gb2312', 'replace') gives '\ufffd\n' instead of '\ufffd'. | |
| - Issue #12459: time.sleep() now raises a ValueError if the sleep length is | |
| negative, instead of an infinite sleep on Windows or raising an IOError on | |
| Linux for example, to have the same behaviour on all platforms. | |
| - Issue #12451: pydoc: html_getfile() now uses tokenize.open() to support | |
| Python scripts using an encoding different than UTF-8 (read the coding cookie | |
| of the script). | |
| - Issue #12493: subprocess: Popen.communicate() now also handles EINTR errors | |
| if the process has only one pipe. | |
| - Issue #12467: warnings: fix a race condition if a warning is emitted at | |
| shutdown, if globals()['__file__'] is None. | |
| - Issue #12451: pydoc: importfile() now opens the Python script in binary mode, | |
| instead of text mode using the locale encoding, to avoid encoding issues. | |
| - Issue #12451: runpy: run_path() now opens the Python script in binary mode, | |
| instead of text mode using the locale encoding, to support other encodings | |
| than UTF-8 (scripts using the coding cookie). | |
| - Issue #12451: xml.dom.pulldom: parse() now opens files in binary mode instead | |
| of the text mode (using the locale encoding) to avoid encoding issues. | |
| - Issue #12147: Adjust the new-in-3.2 smtplib.send_message method for better | |
| conformance to the RFCs: correctly handle Sender and Resent- headers. | |
| - Issue #12352: Fix a deadlock in multiprocessing.Heap when a block is freed by | |
| the garbage collector while the Heap lock is held. | |
| - Issue #12462: time.sleep() now immediately calls the (Python) signal handler | |
| if it is interrupted by a signal, instead of having to wait until the next | |
| instruction. | |
| - Issue #12442: new shutil.disk_usage function, providing total, used and free | |
| disk space statistics. | |
| - Issue #12451: The XInclude default loader of xml.etree now decodes files from | |
| UTF-8 instead of the locale encoding if the encoding is not specified. It now | |
| also opens XML files for the parser in binary mode instead of the text mode | |
| to avoid encoding issues. | |
| - Issue #12451: doctest.debug_script() doesn't create a temporary file | |
| anymore to avoid encoding issues. | |
| - Issue #12451: pydoc.synopsis() now reads the encoding cookie if available, | |
| to read the Python script from the right encoding. | |
| - Issue #12451: distutils now opens the setup script in binary mode to read the | |
| encoding cookie, instead of opening it in UTF-8. | |
| - Issue #9516: On Mac OS X, change Distutils to no longer globally attempt to | |
| check or set the MACOSX_DEPLOYMENT_TARGET environment variable for the | |
| interpreter process. This could cause failures in non-Distutils subprocesses | |
| and was unreliable since tests or user programs could modify the interpreter | |
| environment after Distutils set it. Instead, have Distutils set the | |
| deployment target only in the environment of each build subprocess. It is | |
| still possible to globally override the default by setting | |
| MACOSX_DEPLOYMENT_TARGET before launching the interpreter; its value must be | |
| greater or equal to the default value, the value with which the interpreter | |
| was built. Also, implement the same handling in packaging. | |
| - Issue #12422: In the copy module, don't store objects that are their own copy | |
| in the memo dict. | |
| - Issue #12303: Add sigwaitinfo() and sigtimedwait() to the signal module. | |
| - Issue #12404: Remove C89 incompatible code from mmap module. Patch by Akira | |
| Kitada. | |
| - Issue #1874: email now detects and reports as a defect the presence of | |
| any CTE other than 7bit, 8bit, or binary on a multipart. | |
| - Issue #12383: Fix subprocess module with env={}: don't copy the environment | |
| variables, start with an empty environment. | |
| - Issue #11637: Fix support for importing packaging setup hooks from the | |
| project directory. | |
| - Issue #6771: Moved the curses.wrapper function from the single-function | |
| wrapper module into __init__, eliminating the module. Since __init__ was | |
| already importing the function to curses.wrapper, there is no API change. | |
| - Issue #11584: email.header.decode_header no longer fails if the header | |
| passed to it is a Header object, and Header/make_header no longer fail | |
| if given binary unknown-8bit input. | |
| - Issue #11700: mailbox proxy object close methods can now be called multiple | |
| times without error. | |
| - Issue #11767: Correct file descriptor leak in mailbox's __getitem__ method. | |
| - Issue #12133: AbstractHTTPHandler.do_open() of urllib.request closes the HTTP | |
| connection if its getresponse() method fails with a socket error. Patch | |
| written by Ezio Melotti. | |
| - Issue #12240: Allow multiple setup hooks in packaging's setup.cfg files. | |
| Original patch by Erik Bray. | |
| - Issue #9284: Allow inspect.findsource() to find the source of doctest | |
| functions. | |
| - Issue #11595: Fix assorted bugs in packaging.util.cfg_to_args, a | |
| compatibility helper for the distutils-packaging transition. Original patch | |
| by Erik Bray. | |
| - Issue #12287: In ossaudiodev, check that the device isn't closed in several | |
| methods. | |
| - Issue #12009: Fixed regression in netrc file comment handling. | |
| - Issue #12246: Warn and fail when trying to install a third-party project from | |
| an uninstalled Python (built in a source checkout). Original patch by | |
| Tshepang Lekhonkhobe. | |
| - Issue #10694: zipfile now ignores garbage at the end of a zipfile. | |
| - Issue #12283: Fixed regression in smtplib quoting of leading dots in DATA. | |
| - Issue #10424: Argparse now includes the names of the missing required | |
| arguments in the missing arguments error message. | |
| - Issue #12168: SysLogHandler now allows NUL termination to be controlled using | |
| a new 'append_nul' attribute on the handler. | |
| - Issue #11583: Speed up os.path.isdir on Windows by using GetFileAttributes | |
| instead of os.stat. | |
| - Issue #12021: Make mmap's read() method argument optional. Patch by Petri | |
| Lehtinen. | |
| - Issue #9205: concurrent.futures.ProcessPoolExecutor now detects killed | |
| children and raises BrokenProcessPool in such a situation. Previously it | |
| would reliably freeze/deadlock. | |
| - Issue #12040: Expose a new attribute ``sentinel`` on instances of | |
| ``multiprocessing.Process``. Also, fix Process.join() to not use polling | |
| anymore, when given a timeout. | |
| - Issue #11893: Remove obsolete internal wrapper class ``SSLFakeFile`` in the | |
| smtplib module. Patch by Catalin Iacob. | |
| - Issue #12080: Fix a Decimal.power() case that took an unreasonably long time | |
| to compute. | |
| - Issue #12221: Remove __version__ attributes from pyexpat, pickle, tarfile, | |
| pydoc, tkinter, and xml.parsers.expat. This were useless version constants | |
| left over from the Mercurial transition | |
| - Named tuples now work correctly with vars(). | |
| - Issue #12085: Fix an attribute error in subprocess.Popen destructor if the | |
| constructor has failed, e.g. because of an undeclared keyword argument. Patch | |
| written by Oleg Oshmyan. | |
| - Issue #12028: Make threading._get_ident() public, rename it to | |
| threading.get_ident() and document it. This function was already used using | |
| _thread.get_ident(). | |
| - Issue #12171: IncrementalEncoder.reset() of CJK codecs (multibytecodec) calls | |
| encreset() instead of decreset(). | |
| - Issue #12218: Removed wsgiref.egg-info. | |
| - Issue #12196: Add pipe2() to the os module. | |
| - Issue #985064: Make plistlib more resilient to faulty input plists. | |
| Patch by Mher Movsisyan. | |
| - Issue #1625: BZ2File and bz2.decompress() now support multi-stream files. | |
| Initial patch by Nir Aides. | |
| - Issue #12175: BufferedReader.read(-1) now calls raw.readall() if available. | |
| - Issue #12175: FileIO.readall() now only reads the file position and size | |
| once. | |
| - Issue #12175: RawIOBase.readall() now returns None if read() returns None. | |
| - Issue #12175: FileIO.readall() now raises a ValueError instead of an IOError | |
| if the file is closed. | |
| - Issue #11109: New service_action method for BaseServer, used by ForkingMixin | |
| class for cleanup. Initial Patch by Justin Warkentin. | |
| - Issue #12045: Avoid duplicate execution of command in | |
| ctypes.util._get_soname(). Patch by Sijin Joseph. | |
| - Issue #10818: Remove the Tk GUI and the serve() function of the pydoc module, | |
| pydoc -g has been deprecated in Python 3.2 and it has a new enhanced web | |
| server. | |
| - Issue #1441530: In imaplib, read the data in one chunk to speed up large | |
| reads and simplify code. | |
| - Issue #12070: Fix the Makefile parser of the sysconfig module to handle | |
| correctly references to "bogus variable" (e.g. "prefix=$/opt/python"). | |
| - Issue #12100: Don't reset incremental encoders of CJK codecs at each call to | |
| their encode() method anymore, but continue to call the reset() method if the | |
| final argument is True. | |
| - Issue #12049: Add RAND_bytes() and RAND_pseudo_bytes() functions to the ssl | |
| module. | |
| - Issue #6501: os.device_encoding() returns None on Windows if the application | |
| has no console. | |
| - Issue #12105: Add O_CLOEXEC to the os module. | |
| - Issue #12079: Decimal('Infinity').fma(Decimal('0'), (3.91224318126786e+19+0j)) | |
| now raises TypeError (reflecting the invalid type of the 3rd argument) rather | |
| than Decimal.InvalidOperation. | |
| - Issue #12124: zipimport doesn't keep a reference to zlib.decompress() anymore | |
| to be able to unload the module. | |
| - Add the packaging module, an improved fork of distutils (also known as | |
| distutils2). | |
| - Issue #12065: connect_ex() on an SSL socket now returns the original errno | |
| when the socket's timeout expires (it used to return None). | |
| - Issue #8809: The SMTP_SSL constructor and SMTP.starttls() now support | |
| passing a ``context`` argument pointing to an ssl.SSLContext instance. | |
| Patch by Kasun Herath. | |
| - Issue #9516: Issue #9516: avoid errors in sysconfig when MACOSX_DEPLOYMENT_TARGET | |
| is set in shell. | |
| - Issue #8650: Make zlib module 64-bit clean. compress(), decompress() and | |
| their incremental counterparts now raise OverflowError if given an input | |
| larger than 4GB, instead of silently truncating the input and returning | |
| an incorrect result. | |
| - Issue #12050: zlib.decompressobj().decompress() now clears the unconsumed_tail | |
| attribute when called without a max_length argument. | |
| - Issue #12062: Fix a flushing bug when doing a certain type of I/O sequence | |
| on a file opened in read+write mode (namely: reading, seeking a bit forward, | |
| writing, then seeking before the previous write but still within buffered | |
| data, and writing again). | |
| - Issue #9971: Write an optimized implementation of BufferedReader.readinto(). | |
| Patch by John O'Connor. | |
| - Issue #11799: urllib.request Authentication Handlers will raise a ValueError | |
| when presented with an unsupported Authentication Scheme. Patch contributed | |
| by Yuval Greenfield. | |
| - Issue #10419, #6011: build_scripts command of distutils handles correctly | |
| non-ASCII path (path to the Python executable). Open and write the script in | |
| binary mode, but ensure that the shebang is decodable from UTF-8 and from the | |
| encoding of the script. | |
| - Issue #8498: In socket.accept(), allow specifying 0 as a backlog value in | |
| order to accept exactly one connection. Patch by Daniel Evers. | |
| - Issue #12011: signal.signal() and signal.siginterrupt() raise an OSError, | |
| instead of a RuntimeError: OSError has an errno attribute. | |
| - Issue #3709: add a flush_headers method to BaseHTTPRequestHandler, which | |
| manages the sending of headers to output stream and flushing the internal | |
| headers buffer. Patch contribution by Andrew Schaaf | |
| - Issue #11743: Rewrite multiprocessing connection classes in pure Python. | |
| - Issue #11164: Stop trying to use _xmlplus in the xml module. | |
| - Issue #11888: Add log2 function to math module. Patch written by Mark | |
| Dickinson. | |
| - Issue #12012: ssl.PROTOCOL_SSLv2 becomes optional. | |
| - Issue #8407: The signal handler writes the signal number as a single byte | |
| instead of a nul byte into the wakeup file descriptor. So it is possible to | |
| wait more than one signal and know which signals were raised. | |
| - Issue #8407: Add pthread_kill(), sigpending() and sigwait() functions to the | |
| signal module. | |
| - Issue #11927: SMTP_SSL now uses port 465 by default as documented. Patch | |
| by Kasun Herath. | |
| - Issue #12002: ftplib's abort() method raises TypeError. | |
| - Issue #11916: Add a number of MacOSX specific definitions to the errno module. | |
| Patch by Pierre Carrier. | |
| - Issue #11999: fixed sporadic sync failure mailbox.Maildir due to its trying to | |
| detect mtime changes by comparing to the system clock instead of to the | |
| previous value of the mtime. | |
| - Issue #11072: added MLSD command (RFC-3659) support to ftplib. | |
| - Issue #8808: The IMAP4_SSL constructor now allows passing an SSLContext | |
| parameter to control parameters of the secure channel. Patch by Sijin | |
| Joseph. | |
| - ntpath.samefile failed to notice that "a.txt" and "A.TXT" refer to the same | |
| file on Windows XP. As noticed in issue #10684. | |
| - Issue #12000: When a SSL certificate has a subjectAltName without any | |
| dNSName entry, ssl.match_hostname() should use the subject's commonName. | |
| Patch by Nicolas Bareil. | |
| - Issue #10775: assertRaises, assertRaisesRegex, assertWarns, and | |
| assertWarnsRegex now accept a keyword argument 'msg' when used as context | |
| managers. Initial patch by Winston Ewert. | |
| - Issue #10684: shutil.move used to delete a folder on case insensitive | |
| filesystems when the source and destination name where the same except | |
| for the case. | |
| - Issue #11647: objects created using contextlib.contextmanager now support | |
| more than one call to the function when used as a decorator. Initial patch | |
| by Ysj Ray. | |
| - Issue #11930: Removed deprecated time.accept2dyear variable. | |
| Removed year >= 1000 restriction from datetime.strftime. | |
| - logging: don't define QueueListener if Python has no thread support. | |
| - functools.cmp_to_key() now works with collections.Hashable(). | |
| - Issue #11277: mmap.mmap() calls fcntl(fd, F_FULLFSYNC) on Mac OS X to get | |
| around a mmap bug with sparse files. Patch written by Steffen Daode Nurpmeso. | |
| - Issue #8407: Add signal.pthread_sigmask() function to fetch and/or change the | |
| signal mask of the calling thread. | |
| - Issue #11858: configparser.ExtendedInterpolation expected lower-case section | |
| names. | |
| - Issue #11324: ConfigParser(interpolation=None) now works correctly. | |
| - Issue #11811: ssl.get_server_certificate() is now IPv6-compatible. Patch | |
| by Charles-François Natali. | |
| - Issue #11763: don't use difflib in TestCase.assertMultiLineEqual if the | |
| strings are too long. | |
| - Issue #11236: getpass.getpass responds to ctrl-c or ctrl-z on terminal. | |
| - Issue #11856: Speed up parsing of JSON numbers. | |
| - Issue #11005: threading.RLock()._release_save() raises a RuntimeError if the | |
| lock was not acquired. | |
| - Issue #11258: Speed up ctypes.util.find_library() under Linux by a factor | |
| of 5 to 10. Initial patch by Jonas H. | |
| - Issue #11382: Trivial system calls, such as dup() or pipe(), needn't | |
| release the GIL. Patch by Charles-François Natali. | |
| - Issue #11223: Add threading._info() function providing information about | |
| the thread implementation. | |
| - Issue #11731: simplify/enhance email parser/generator API by introducing | |
| policy objects. | |
| - Issue #11768: The signal handler of the signal module only calls | |
| Py_AddPendingCall() for the first signal to fix a deadlock on reentrant or | |
| parallel calls. PyErr_SetInterrupt() writes also into the wake up file. | |
| - Issue #11492: fix several issues with header folding in the email package. | |
| - Issue #11852: Add missing imports and update tests. | |
| - Issue #11875: collections.OrderedDict's __reduce__ was temporarily | |
| mutating the object instead of just working on a copy. | |
| - Issue #11467: Fix urlparse behavior when handling urls which contains scheme | |
| specific part only digits. Patch by Santoso Wijaya. | |
| - collections.Counter().copy() now works correctly for subclasses. | |
| - Issue #11474: Fix the bug with url2pathname() handling of '/C|/' on Windows. | |
| Patch by Santoso Wijaya. | |
| - Issue #11684: complete email.parser bytes API by adding BytesHeaderParser. | |
| - The bz2 module now handles 4GiB+ input buffers correctly. | |
| - Issue #9233: Fix json.loads('{}') to return a dict (instead of a list), when | |
| _json is not available. | |
| - Issue #11830: Remove unnecessary introspection code in the decimal module. | |
| - Issue #11703: urllib2.geturl() does not return correct url when the original | |
| url contains #fragment. | |
| - Issue #10019: Fixed regression in json module where an indent of 0 stopped | |
| adding newlines and acted instead like 'None'. | |
| - Issue #11186: pydoc ignores a module if its name contains a surrogate | |
| character in the index of modules. | |
| - Issue #11815: Use a light-weight SimpleQueue for the result queue in | |
| concurrent.futures.ProcessPoolExecutor. | |
| - Issue #5162: Treat services like frozen executables to allow child spawning | |
| from multiprocessing.forking on Windows. | |
| - logging.basicConfig now supports an optional 'handlers' argument taking an | |
| iterable of handlers to be added to the root logger. Additional parameter | |
| checks were also added to basicConfig. | |
| - Issue #11814: Fix likely typo in multiprocessing.Pool._terminate(). | |
| - Issue #11747: Fix range formatting in difflib.context_diff() and | |
| difflib.unified_diff(). | |
| - Issue #8428: Fix a race condition in multiprocessing.Pool when terminating | |
| worker processes: new processes would be spawned while the pool is being | |
| shut down. Patch by Charles-François Natali. | |
| - Issue #2650: re.escape() no longer escapes the '_'. | |
| - Issue #11757: select.select() now raises ValueError when a negative timeout | |
| is passed (previously, a select.error with EINVAL would be raised). Patch | |
| by Charles-François Natali. | |
| - Issue #7311: fix html.parser to accept non-ASCII attribute values. | |
| - Issue #11605: email.parser.BytesFeedParser was incorrectly converting | |
| multipart subparts with an 8-bit CTE into unicode instead of preserving the | |
| bytes. | |
| - Issue #1690608: email.util.formataddr is now RFC 2047 aware: it now has a | |
| charset parameter that defaults to utf-8 and is used as the charset for RFC | |
| 2047 encoding when the realname contains non-ASCII characters. | |
| - Issue #10963: Ensure that subprocess.communicate() never raises EPIPE. | |
| - Issue #10791: Implement missing method GzipFile.read1(), allowing GzipFile | |
| to be wrapped in a TextIOWrapper. Patch by Nadeem Vawda. | |
| - Issue #11707: Added a fast C version of functools.cmp_to_key(). | |
| Patch by Filip Gruszczyński. | |
| - Issue #11688: Add sqlite3.Connection.set_trace_callback(). Patch by | |
| Torsten Landschoff. | |
| - Issue #11746: Fix SSLContext.load_cert_chain() to accept elliptic curve | |
| private keys. | |
| - Issue #5863: Rewrite BZ2File in pure Python, and allow it to accept | |
| file-like objects using a new ``fileobj`` constructor argument. Patch by | |
| Nadeem Vawda. | |
| - unittest.TestCase.assertSameElements has been removed. | |
| - sys.getfilesystemencoding() raises a RuntimeError if initfsencoding() was not | |
| called yet: detect bootstrap (startup) issues earlier. | |
| - Issue #11393: Add the new faulthandler module. | |
| - Issue #11618: Fix the timeout logic in threading.Lock.acquire() under Windows. | |
| - Removed the 'strict' argument to email.parser.Parser, which has been | |
| deprecated since Python 2.4. | |
| - Issue #11256: Fix inspect.getcallargs on functions that take only keyword | |
| arguments. | |
| - Issue #11696: Fix ID generation in msilib. | |
| - itertools.accumulate now supports an optional *func* argument for | |
| a user-supplied binary function. | |
| - Issue #11692: Remove unnecessary demo functions in subprocess module. | |
| - Issue #9696: Fix exception incorrectly raised by xdrlib.Packer.pack_int when | |
| trying to pack a negative (in-range) integer. | |
| - Issue #11675: multiprocessing.[Raw]Array objects created from an integer size | |
| are now zeroed on creation. This matches the behaviour specified by the | |
| documentation. | |
| - Issue #7639: Fix short file name generation in bdist_msi | |
| - Issue #11635: Don't use polling in worker threads and processes launched by | |
| concurrent.futures. | |
| - Issue #5845: Automatically read readline configuration to enable completion | |
| in interactive mode. | |
| - Issue #6811: Allow importlib to change a code object's co_filename attribute | |
| to match the path to where the source code currently is, not where the code | |
| object originally came from. | |
| - Issue #8754: Have importlib use the repr of a module name in error messages. | |
| - Issue #11591: Prevent "import site" from modifying sys.path when python | |
| was started with -S. | |
| - collections.namedtuple() now adds a _source attribute to the generated | |
| class. This make the source more accessible than the outdated | |
| "verbose" option which prints to stdout but doesn't make the source | |
| string available. | |
| - Issue #11371: Mark getopt error messages as localizable. Patch by Filip | |
| Gruszczyński. | |
| - Issue #11333: Add __slots__ to collections ABCs. | |
| - Issue #11628: cmp_to_key generated class should use __slots__. | |
| - Issue #11666: let help() display named tuple attributes and methods | |
| that start with a leading underscore. | |
| - Issue #11662: Make urllib and urllib2 ignore redirections if the | |
| scheme is not HTTP, HTTPS or FTP (CVE-2011-1521). | |
| - Issue #5537: Fix time2isoz() and time2netscape() functions of | |
| httplib.cookiejar for expiration year greater than 2038 on 32-bit systems. | |
| - Issue #4391: Use proper gettext plural forms in optparse. | |
| - Issue #11127: Raise a TypeError when trying to pickle a socket object. | |
| - Issue #11563: ``Connection: close`` header is sent by requests using URLOpener | |
| class which helps in closing of sockets after connection is over. Patch | |
| contributions by Jeff McNeil and Nadeem Vawda. | |
| - Issue #11459: A ``bufsize`` value of 0 in subprocess.Popen() really creates | |
| unbuffered pipes, such that select() works properly on them. | |
| - Issue #5421: Fix misleading error message when one of socket.sendto()'s | |
| arguments has the wrong type. Patch by Nikita Vetoshkin. | |
| - Issue #10812: Add some extra posix functions to the os module. | |
| - Issue #10979: unittest stdout buffering now works with class and module | |
| setup and teardown. | |
| - Issue #11243: fix the parameter querying methods of Message to work if | |
| the headers contain un-encoded non-ASCII data. | |
| - Issue #11401: fix handling of headers with no value; this fixes a regression | |
| relative to Python2 and the result is now the same as it was in Python2. | |
| - Issue #9298: base64 bodies weren't being folded to line lengths less than 78, | |
| which was a regression relative to Python2. Unlike Python2, the last line | |
| of the folded body now ends with a carriage return. | |
| - Issue #11560: shutil.unpack_archive now correctly handles the format | |
| parameter. Patch by Evan Dandrea. | |
| - Issue #5870: Add `subprocess.DEVNULL` constant. | |
| - Issue #11133: fix two cases where inspect.getattr_static can trigger code | |
| execution. Patch by Andreas Stührk. | |
| - Issue #11569: use absolute path to the sysctl command in multiprocessing to | |
| ensure that it will be found regardless of the shell PATH. This ensures | |
| that multiprocessing.cpu_count works on default installs of MacOSX. | |
| - Issue #11501: distutils.archive_utils.make_zipfile no longer fails if zlib is | |
| not installed. Instead, the zipfile.ZIP_STORED compression is used to create | |
| the ZipFile. Patch by Natalia B. Bidart. | |
| - Issue #11289: `smtp.SMTP` class is now a context manager so it can be used | |
| in a `with` statement. Contributed by Giampaolo Rodola. | |
| - Issue #11554: Fixed support for Japanese codecs; previously the body output | |
| encoding was not done if euc-jp or shift-jis was specified as the charset. | |
| - Issue #11407: `TestCase.run` returns the result object used or created. | |
| Contributed by Janathan Hartley. | |
| - Issue #11500: Fixed a bug in the OS X proxy bypass code for fully qualified | |
| IP addresses in the proxy exception list. | |
| - Issue #11491: dbm.error is no longer raised when dbm.open is called with | |
| the "n" as the flag argument and the file exists. The behavior matches | |
| the documentation and general logic. | |
| - Issue #1162477: Postel Principle adjustment to email date parsing: handle the | |
| fact that some non-compliant MUAs use '.' instead of ':' in time specs. | |
| - Issue #11131: Fix sign of zero in decimal.Decimal plus and minus | |
| operations when the rounding mode is ROUND_FLOOR. | |
| - Issue #9935: Speed up pickling of instances of user-defined classes. | |
| - Issue #5622: Fix curses.wrapper to raise correct exception if curses | |
| initialization fails. | |
| - Issue #11408: In threading.Lock.acquire(), only call gettimeofday() when | |
| really necessary. Patch by Charles-François Natali. | |
| - Issue #11391: Writing to a mmap object created with | |
| ``mmap.PROT_READ|mmap.PROT_EXEC`` would segfault instead of raising a | |
| TypeError. Patch by Charles-François Natali. | |
| - Issue #9795: add context management protocol support for nntplib.NNTP class. | |
| - Issue #11306: mailbox in certain cases adapts to an inability to open | |
| certain files in read-write mode. Previously it detected this by | |
| checking for EACCES, now it also checks for EROFS. | |
| - Issue #11265: asyncore now correctly handles EPIPE, EBADF and EAGAIN errors | |
| on accept(), send() and recv(). | |
| - Issue #11377: Deprecate platform.popen() and reimplement it with os.popen(). | |
| - Issue #8513: On UNIX, subprocess supports bytes command string. | |
| - Issue #10866: Add socket.sethostname(). Initial patch by Ross Lagerwall. | |
| - Issue #11140: Lock.release() now raises a RuntimeError when attempting | |
| to release an unacquired lock, as claimed in the threading documentation. | |
| The _thread.error exception is now an alias of RuntimeError. Patch by | |
| Filip Gruszczyński. Patch for _dummy_thread by Aymeric Augustin. | |
| - Issue #8594: ftplib now provides a source_address parameter to specify which | |
| (address, port) to bind to before connecting. | |
| - Issue #11326: Add the missing connect_ex() implementation for SSL sockets, | |
| and make it work for non-blocking connects. | |
| - Issue #11297: Add collections.ChainMap(). | |
| - Issue #10755: Add the posix.flistdir() function. Patch by Ross Lagerwall. | |
| - Issue #4761: Add the ``*at()`` family of functions (openat(), etc.) to the | |
| posix module. Patch by Ross Lagerwall. | |
| - Issue #7322: Trying to read from a socket's file-like object after a timeout | |
| occurred now raises an error instead of silently losing data. | |
| - Issue #11291: poplib.POP no longer suppresses errors on quit(). | |
| - Issue #11177: asyncore's create_socket() arguments can now be omitted. | |
| - Issue #6064: Add a ``daemon`` keyword argument to the threading.Thread | |
| and multiprocessing.Process constructors in order to override the | |
| default behaviour of inheriting the daemonic property from the current | |
| thread/process. | |
| - Issue #10956: Buffered I/O classes retry reading or writing after a signal | |
| has arrived and the handler returned successfully. | |
| - Issue #10784: New os.getpriority() and os.setpriority() functions. | |
| - Issue #11114: Fix catastrophic performance of tell() on text files (up | |
| to 1000x faster in some cases). It is still one to two order of magnitudes | |
| slower than binary tell(). | |
| - Issue #10882: Add os.sendfile function. | |
| - Issue #10868: Allow usage of the register method of an ABC as a class | |
| decorator. | |
| - Issue #11224: Fixed a regression in tarfile that affected the file-like | |
| objects returned by TarFile.extractfile() regarding performance, memory | |
| consumption and failures with the stream interface. | |
| - Issue #10924: Adding salt and Modular Crypt Format to crypt library. | |
| Moved old C wrapper to _crypt, and added a Python wrapper with | |
| enhanced salt generation and simpler API for password generation. | |
| - Issue #11074: Make 'tokenize' so it can be reloaded. | |
| - Issue #11085: Moved collections abstract base classes into a separate | |
| module called collections.abc, following the pattern used by importlib.abc. | |
| For backwards compatibility, the names are imported into the collections | |
| module. | |
| - Issue #4681: Allow mmap() to work on file sizes and offsets larger than | |
| 4GB, even on 32-bit builds. Initial patch by Ross Lagerwall, adapted for | |
| 32-bit Windows. | |
| - Issue #11169: compileall module uses repr() to format filenames and paths to | |
| escape surrogate characters and show spaces. | |
| - Issue #11089: Fix performance issue limiting the use of ConfigParser() | |
| with large config files. | |
| - Issue #10276: Fix the results of zlib.crc32() and zlib.adler32() on buffers | |
| larger than 4GB. Patch by Nadeem Vawda. | |
| - Issue #11388: Added a clear() method to MutableSequence | |
| - Issue #11174: Add argparse.MetavarTypeHelpFormatter, which uses type names | |
| for the names of optional and positional arguments in help messages. | |
| - Issue #9348: Raise an early error if argparse nargs and metavar don't match. | |
| - Issue #9026: Fix order of argparse sub-commands in help messages. | |
| - Issue #9347: Fix formatting for tuples in argparse type= error messages. | |
| - Issue #12191: Added shutil.chown() to change user and/or group owner of a | |
| given path also specifying their names. | |
| - Issue #13988: The _elementtree accelerator is used whenever available. | |
| Now xml.etree.cElementTree becomes a deprecated alias to ElementTree. | |
| Build | |
| ----- | |
| - Issue #6807: Run msisupport.mak earlier. | |
| - Issue #10580: Minor grammar change in Windows installer. | |
| - Issue #13326: Clean __pycache__ directories correctly on OpenBSD. | |
| - PEP 393: the configure option --with-wide-unicode is removed. | |
| - Issue #12852: Set _XOPEN_SOURCE to 700, instead of 600, to get POSIX 2008 | |
| functions on OpenBSD (e.g. fdopendir). | |
| - Issue #11863: Remove support for legacy systems deprecated in Python 3.2 | |
| (following PEP 11). These systems are systems using Mach C Threads, | |
| SunOS lightweight processes, GNU pth threads and IRIX threads. | |
| - Issue #8746: Correct faulty configure checks so that os.chflags() and | |
| os.lchflags() are once again built on systems that support these | |
| functions (BSD and OS X). Also add new stat file flags for OS X | |
| (UF_HIDDEN and UF_COMPRESSED). | |
| - Issue #10645: Installing Python no longer creates a | |
| Python-X.Y.Z-pyX.Y.egg-info file in the lib-dynload directory. | |
| - Do not accidentally include the directory containing sqlite.h twice when | |
| building sqlite3. | |
| - Issue #11217: For 64-bit/32-bit Mac OS X universal framework builds, | |
| ensure "make install" creates symlinks in --prefix bin for the "-32" | |
| files in the framework bin directory like the installer does. | |
| - Issue #11347: Use --no-as-needed when linking libpython3.so. | |
| - Issue #11411: Fix 'make DESTDIR=' with a relative destination. | |
| - Issue #11268: Prevent Mac OS X Installer failure if Documentation | |
| package had previously been installed. | |
| - Issue #11495: OSF support is eliminated. It was deprecated in Python 3.2. | |
| IDLE | |
| ---- | |
| - Issue #14409: IDLE now properly executes commands in the Shell window | |
| when it cannot read the normal config files on startup and | |
| has to use the built-in default key bindings. | |
| There was previously a bug in one of the defaults. | |
| - IDLE can be launched as python -m idlelib | |
| - Issue #3573: IDLE hangs when passing invalid command line args | |
| (directory(ies) instead of file(s)) (Patch by Guilherme Polo) | |
| - Issue #14200: IDLE shell crash on printing non-BMP unicode character. | |
| - Issue #5219: Prevent event handler cascade in IDLE. | |
| - Issue #964437: Make IDLE help window non-modal. | |
| Patch by Guilherme Polo and Roger Serwy. | |
| - Issue #13933: IDLE auto-complete did not work with some imported | |
| module, like hashlib. (Patch by Roger Serwy) | |
| - Issue #13506: Add '' to path for IDLE Shell when started and restarted with Restart Shell. | |
| Original patches by Marco Scataglini and Roger Serwy. | |
| - Issue #4625: If IDLE cannot write to its recent file or breakpoint files, | |
| display a message popup and continue rather than crash. Original patch by | |
| Roger Serwy. | |
| - Issue #8641: Update IDLE 3 syntax coloring to recognize b".." and not u"..". | |
| Patch by Tal Einat. | |
| - Issue #13296: Fix IDLE to clear compile __future__ flags on shell restart. | |
| (Patch by Roger Serwy) | |
| - Issue #9871: Prevent IDLE 3 crash when given byte strings | |
| with invalid hex escape sequences, like b'\x0'. | |
| (Original patch by Claudiu Popa.) | |
| - Issue #12636: IDLE reads the coding cookie when executing a Python script. | |
| - Issue #12540: Prevent zombie IDLE processes on Windows due to changes | |
| in os.kill(). | |
| - Issue #12590: IDLE editor window now always displays the first line | |
| when opening a long file. With Tk 8.5, the first line was hidden. | |
| - Issue #11088: don't crash when using F5 to run a script in IDLE on MacOSX | |
| with Tk 8.5. | |
| - Issue #1028: Tk returns invalid Unicode null in %A: UnicodeDecodeError. | |
| With Tk < 8.5 _tkinter.c:PythonCmd() raised UnicodeDecodeError, caused | |
| IDLE to exit. Converted to valid Unicode null in PythonCmd(). | |
| - Issue #11718: IDLE's open module dialog couldn't find the __init__.py | |
| file in a package. | |
| Tools/Demos | |
| ----------- | |
| - Issue #14053: patchcheck.py ("make patchcheck") now works with MQ patches. | |
| Patch by Francisco Martín Brugué. | |
| - Issue #13930: 2to3 is now able to write its converted output files to another | |
| directory tree as well as copying unchanged files and altering the file | |
| suffix. See its new -o, -W and --add-suffix options. This makes it more | |
| useful in many automated code translation workflows. | |
| - Issue #13628: python-gdb.py is now able to retrieve more frames in the Python | |
| traceback if Python is optimized. | |
| - Issue #11996: libpython (gdb), replace "py-bt" command by "py-bt-full" and | |
| add a smarter "py-bt" command printing a classic Python traceback. | |
| - Issue #11179: Make ccbench work under Python 3.1 and 2.7 again. | |
| - Issue #10639: reindent.py no longer converts newlines and will raise | |
| an error if attempting to convert a file with mixed newlines. | |
| "--newline" option added to specify new line character. | |
| Extension Modules | |
| ----------------- | |
| - Issue #16847: Fixed improper use of _PyUnicode_CheckConsistency() in | |
| non-pydebug builds. Several extension modules now compile cleanly when | |
| assert()s are enabled in standard builds (-DDEBUG flag). | |
| - Issue #13840: The error message produced by ctypes.create_string_buffer | |
| when given a Unicode string has been fixed. | |
| - Issue #9975: socket: Fix incorrect use of flowinfo and scope_id. Patch by | |
| Vilmos Nebehaj. | |
| - Issue #7777: socket: Add Reliable Datagram Sockets (PF_RDS) support. | |
| - Issue #13159: FileIO and BZ2Compressor/BZ2Decompressor now use a linear-time | |
| buffer growth strategy instead of a quadratic-time one. | |
| - Issue #10141: socket: Add SocketCAN (PF_CAN) support. Initial patch by | |
| Matthias Fuchs, updated by Tiago Gonçalves. | |
| - Issue #13070: Fix a crash when a TextIOWrapper caught in a reference cycle | |
| would be finalized after the reference to its underlying BufferedRWPair's | |
| writer got cleared by the GC. | |
| - Issue #12881: ctypes: Fix segfault with large structure field names. | |
| - Issue #13058: ossaudiodev: fix a file descriptor leak on error. Patch by | |
| Thomas Jarosch. | |
| - Issue #13013: ctypes: Fix a reference leak in PyCArrayType_from_ctype. | |
| Thanks to Suman Saha for finding the bug and providing a patch. | |
| - Issue #13022: Fix: _multiprocessing.recvfd() doesn't check that | |
| file descriptor was actually received. | |
| - Issue #1172711: Add 'long long' support to the array module. | |
| Initial patch by Oren Tirosh and Hirokazu Yamamoto. | |
| - Issue #12483: ctypes: Fix a crash when the destruction of a callback | |
| object triggers the garbage collector. | |
| - Issue #12950: Fix passing file descriptors in multiprocessing, under | |
| OpenIndiana/Illumos. | |
| - Issue #12764: Fix a crash in ctypes when the name of a Structure field is not | |
| a string. | |
| - Issue #11241: subclasses of ctypes.Array can now be subclassed. | |
| - Issue #9651: Fix a crash when ctypes.create_string_buffer(0) was passed to | |
| some functions like file.write(). | |
| - Issue #10309: Define _GNU_SOURCE so that mremap() gets the proper | |
| signature. Without this, architectures where sizeof void* != sizeof int are | |
| broken. Patch given by Hallvard B Furuseth. | |
| - Issue #12051: Fix segfault in json.dumps() while encoding highly-nested | |
| objects using the C accelerations. | |
| - Issue #12017: Fix segfault in json.loads() while decoding highly-nested | |
| objects using the C accelerations. | |
| - Issue #1838: Prevent segfault in ctypes, when _as_parameter_ on a class is set | |
| to an instance of the class. | |
| Tests | |
| ----- | |
| - Issue #13125: Silence spurious test_lib2to3 output when in non-verbose mode. | |
| Patch by Mikhail Novikov. | |
| - Issue #13447: Add a test file to host regression tests for bugs in the | |
| scripts found in the Tools directory. | |
| - Issue #10881: Fix test_site failure with OS X framework builds. | |
| - Issue #13901: Prevent test_distutils failures on OS X with --enable-shared. | |
| - Issue #13862: Fix spurious failure in test_zlib due to runtime/compile time | |
| minor versions not matching. | |
| - Issue #12804: Fix test_socket and test_urllib2net failures when running tests | |
| on a system without internet access. | |
| - Issue #13726: Fix the ambiguous -S flag in regrtest. It is -o/--slow for slow | |
| tests. | |
| - Issue #11659: Fix ResourceWarning in test_subprocess introduced by #11459. | |
| Patch by Ben Hayden. | |
| - Issue #11577: fix ResourceWarning triggered by improved binhex test coverage | |
| - Issue #11509: Significantly increase test coverage of fileinput. | |
| Patch by Denver Coneybeare at PyCon 2011 Sprints. | |
| - Issue #11689: Fix a variable scoping error in an sqlite3 test | |
| - Issue #13786: Remove unimplemented 'trace' long option from regrtest.py. | |
| - Issue #13725: Fix regrtest to recognize the documented -d flag. | |
| Patch by Erno Tukia. | |
| - Issue #13304: Skip test case if user site-packages disabled (-s or | |
| PYTHONNOUSERSITE). (Patch by Carl Meyer) | |
| - Issue #5661: Add a test for ECONNRESET/EPIPE handling to test_asyncore. Patch | |
| by Xavier de Gaye. | |
| - Issue #13218: Fix test_ssl failures on Debian/Ubuntu. | |
| - Re-enable lib2to3's test_parser.py tests, though with an expected failure | |
| (see issue 13125). | |
| - Issue #12656: Add tests for IPv6 and Unix sockets to test_asyncore. | |
| - Issue #6484: Add unit tests for mailcap module (patch by Gregory Nofi) | |
| - Issue #11651: Improve the Makefile test targets to run more of the test suite | |
| more quickly. The --multiprocess option is now enabled by default, reducing | |
| the amount of time needed to run the tests. "make test" and "make quicktest" | |
| now include some resource-intensive tests, but no longer run the test suite | |
| twice to check for bugs in .pyc generation. Tools/scripts/run_test.py provides | |
| an easy platform-independent way to run test suite with sensible defaults. | |
| - Issue #12331: The test suite for the packaging module can now run from an | |
| installed Python. | |
| - Issue #12331: The test suite for lib2to3 can now run from an installed | |
| Python. | |
| - Issue #12626: In regrtest, allow filtering tests using a glob filter | |
| with the ``-m`` (or ``--match``) option. This works with all test cases | |
| using the unittest module. This is useful with long test suites | |
| such as test_io or test_subprocess. | |
| - Issue #12624: It is now possible to fail after the first failure when | |
| running in verbose mode (``-v`` or ``-W``), by using the ``--failfast`` | |
| (or ``-G``) option to regrtest. This is useful with long test suites | |
| such as test_io or test_subprocess. | |
| - Issue #12587: Correct faulty test file and reference in test_tokenize. | |
| (Patch by Robert Xiao) | |
| - Issue #12573: Add resource checks for dangling Thread and Process objects. | |
| - Issue #12549: Correct test_platform to not fail when OS X returns 'x86_64' | |
| as the processor type on some Mac systems. | |
| - Skip network tests when getaddrinfo() returns EAI_AGAIN, meaning a temporary | |
| failure in name resolution. | |
| - Issue #11812: Solve transient socket failure to connect to 'localhost' | |
| in test_telnetlib.py. | |
| - Solved a potential deadlock in test_telnetlib.py. Related to issue #11812. | |
| - Avoid failing in test_robotparser when mueblesmoraleda.com is flaky and | |
| an overzealous DNS service (e.g. OpenDNS) redirects to a placeholder | |
| web site. | |
| - Avoid failing in test_urllibnet.test_bad_address when some overzealous | |
| DNS service (e.g. OpenDNS) resolves a non-existent domain name. The test | |
| is now skipped instead. | |
| - Issue #12440: When testing whether some bits in SSLContext.options can be | |
| reset, check the version of the OpenSSL headers Python was compiled against, | |
| rather than the runtime version of the OpenSSL library. | |
| - Issue #11512: Add a test suite for the cgitb module. Patch by Robbie Clemons. | |
| - Issue #12497: Install test/data to prevent failures of the various codecmaps | |
| tests. | |
| - Issue #12496: Install test/capath directory to prevent test_connect_capath | |
| testcase failure in test_ssl. | |
| - Issue #12469: Run wakeup and pending signal tests in a subprocess to run the | |
| test in a fresh process with only one thread and to not change signal | |
| handling of the parent process. | |
| - Issue #8716: Avoid crashes caused by Aqua Tk on OSX when attempting to run | |
| test_tk or test_ttk_guionly under a username that is not currently logged | |
| in to the console windowserver (as may be the case under buildbot or ssh). | |
| - Issue #12407: Explicitly skip test_capi.EmbeddingTest under Windows. | |
| - Issue #12400: regrtest -W doesn't rerun the tests twice anymore, but captures | |
| the output and displays it on failure instead. regrtest -v doesn't print the | |
| error twice anymore if there is only one error. | |
| - Issue #12141: Install copies of template C module file so that | |
| test_build_ext of test_distutils and test_command_build_ext of | |
| test_packaging are no longer silently skipped when | |
| run outside of a build directory. | |
| - Issue #8746: Add additional tests for os.chflags() and os.lchflags(). | |
| Patch by Garrett Cooper. | |
| - Issue #10736: Fix test_ttk test_widgets failures with Cocoa Tk 8.5.9 | |
| 2.8 + on Mac OS X. (Patch by Ronald Oussoren) | |
| - Issue #12057: Add tests for ISO 2022 codecs (iso2022_jp, iso2022_jp_2, | |
| iso2022_kr). | |
| - Issue #12096: Fix a race condition in test_threading.test_waitfor(). Patch | |
| written by Charles-François Natali. | |
| - Issue #11614: import __hello__ prints "Hello World!". Patch written by | |
| Andreas Stührk. | |
| - Issue #5723: Improve json tests to be executed with and without accelerations. | |
| - Issue #12041: Make test_wait3 more robust. | |
| - Issue #11873: Change regex in test_compileall to fix occasional failures when | |
| the randomly generated temporary path happened to match the regex. | |
| - Issue #11958: Fix FTP tests for IPv6, bind to "::1" instead of "localhost". | |
| Patch written by Charles-Francois Natali. | |
| - Issue #8407, #11859: Fix tests of test_io using threads and an alarm: use | |
| pthread_sigmask() to ensure that the SIGALRM signal is received by the main | |
| thread. | |
| - Issue #11811: Factor out detection of IPv6 support on the current host | |
| and make it available as ``test.support.IPV6_ENABLED``. Patch by | |
| Charles-François Natali. | |
| - Issue #10914: Add a minimal embedding test to test_capi. | |
| - Issue #11223: Skip test_lock_acquire_interruption() and | |
| test_rlock_acquire_interruption() of test_threadsignals if a thread lock is | |
| implemented using a POSIX mutex and a POSIX condition variable. A POSIX | |
| condition variable cannot be interrupted by a signal (e.g. on Linux, the | |
| futex system call is restarted). | |
| - Issue #11790: Fix sporadic failures in test_multiprocessing.WithProcessesTestCondition. | |
| - Fix possible "file already exists" error when running the tests in parallel. | |
| - Issue #11719: Fix message about unexpected test_msilib skip on non-Windows | |
| platforms. Patch by Nadeem Vawda. | |
| - Issue #11727: Add a --timeout option to regrtest: if a test takes more than | |
| TIMEOUT seconds, dumps the traceback of all threads and exits. | |
| - Issue #11653: fix -W with -j in regrtest. | |
| - The email test suite now lives in the Lib/test/test_email package. The test | |
| harness code has also been modernized to allow use of new unittest features. | |
| - regrtest now discovers test packages as well as test modules. | |
| - Issue #11577: improve test coverage of binhex.py. Patch by Arkady Koplyarov. | |
| - New test_crashers added to exercise the scripts in the Lib/test/crashers | |
| directory and confirm they fail as expected | |
| - Issue #11578: added test for the timeit module. Patch by Michael Henry. | |
| - Issue #11503: improve test coverage of posixpath.py. Patch by Evan Dandrea. | |
| - Issue #11505: improves test coverage of string.py, increases granularity of | |
| string.Formatter tests. Initial patch by Alicia Arlen. | |
| - Issue #11548: Improve test coverage of the shutil module. Patch by | |
| Evan Dandrea. | |
| - Issue #11554: Reactivated test_email_codecs. | |
| - Issue #11505: improves test coverage of string.py. Patch by Alicia | |
| Arlen | |
| - Issue #11490: test_subprocess.test_leaking_fds_on_error no longer gives a | |
| false positive if the last directory in the path is inaccessible. | |
| - Issue #11223: Fix test_threadsignals to fail, not hang, when the | |
| non-semaphore implementation of locks is used under POSIX. | |
| - Issue #10911: Add tests on CGI with non-ASCII characters. Patch written by | |
| Pierre Quentel. | |
| - Issue #9931: Fix hangs in GUI tests under Windows in certain conditions. | |
| Patch by Hirokazu Yamamoto. | |
| - Issue #10512: Properly close sockets under test.test_cgi. | |
| - Issue #10992: Make tests pass under coverage. | |
| - Issue #10826: Prevent sporadic failure in test_subprocess on Solaris due | |
| to open door files. | |
| - Issue #10990: Prevent tests from clobbering a set trace function. | |
| C-API | |
| ----- | |
| - Issue #13452: PyUnicode_EncodeDecimal() doesn't support error handlers | |
| different than "strict" anymore. The caller was unable to compute the | |
| size of the output buffer: it depends on the error handler. | |
| - Issue #13560: Add PyUnicode_DecodeLocale(), PyUnicode_DecodeLocaleAndSize() | |
| and PyUnicode_EncodeLocale() functions to the C API to decode/encode from/to | |
| the current locale encoding. | |
| - Issue #10831: PyUnicode_FromFormat() supports %li, %lli and %zi formats. | |
| - Issue #11246: Fix PyUnicode_FromFormat("%V") to decode the byte string from | |
| UTF-8 (with replace error handler) instead of ISO-8859-1 (in strict mode). | |
| Patch written by Ray Allen. | |
| - Issue #10830: Fix PyUnicode_FromFormatV("%c") for non-BMP characters on | |
| narrow build. | |
| - Add PyObject_GenericGetDict and PyObject_GeneriSetDict. They are generic | |
| implementations for the getter and setter of a ``__dict__`` descriptor of C | |
| types. | |
| - Issue #13727: Add 3 macros to access PyDateTime_Delta members: | |
| PyDateTime_DELTA_GET_DAYS, PyDateTime_DELTA_GET_SECONDS, | |
| PyDateTime_DELTA_GET_MICROSECONDS. | |
| - Issue #10542: Add 4 macros to work with surrogates: Py_UNICODE_IS_SURROGATE, | |
| Py_UNICODE_IS_HIGH_SURROGATE, Py_UNICODE_IS_LOW_SURROGATE, | |
| Py_UNICODE_JOIN_SURROGATES. | |
| - Issue #12724: Add Py_RETURN_NOTIMPLEMENTED macro for returning NotImplemented. | |
| - PY_PATCHLEVEL_REVISION has been removed, since it's meaningless with | |
| Mercurial. | |
| - Issue #12173: The first argument of PyImport_ImportModuleLevel is now `const | |
| char *` instead of `char *`. | |
| - Issue #12380: PyArg_ParseTuple now accepts a bytearray for the 'c' format. | |
| Documentation | |
| ------------- | |
| - Issue #13989: Document that GzipFile does not support text mode, and give a | |
| more helpful error message when opened with an invalid mode string. | |
| - Issue #13921: Undocument and clean up sqlite3.OptimizedUnicode, | |
| which is obsolete in Python 3.x. It's now aliased to str for | |
| backwards compatibility. | |
| - Issue #12102: Document that buffered files must be flushed before being used | |
| with mmap. Patch by Steffen Daode Nurpmeso. | |
| - Issue #8982: Improve the documentation for the argparse Namespace object. | |
| - Issue #9343: Document that argparse parent parsers must be configured before | |
| their children. | |
| - Issue #13498: Clarify docs of os.makedirs()'s exist_ok argument. Done with | |
| great native-speaker help from R. David Murray. | |
| - Issues #13491 and #13995: Fix many errors in sqlite3 documentation. | |
| Initial patch for #13491 by Johannes Vogel. | |
| - Issue #13402: Document absoluteness of sys.executable. | |
| - Issue #13883: PYTHONCASEOK also works on OS X. | |
| - Issue #9021: Add an introduction to the copy module documentation. | |
| - Issue #6005: Examples in the socket library documentation use sendall, where | |
| relevant, instead send method. | |
| - Issue #12798: Updated the mimetypes documentation. | |
| - Issue #12949: Document the kwonlyargcount argument for the PyCode_New | |
| C API function. | |
| - Issue #13513: Fix io.IOBase documentation to correctly link to the | |
| io.IOBase.readline method instead of the readline module. | |
| - Issue #13237: Reorganise subprocess documentation to emphasise convenience | |
| functions and the most commonly needed arguments to Popen. | |
| - Issue #13141: Demonstrate recommended style for socketserver examples. | |
| - Issue #11818: Fix tempfile examples for Python 3. | |
| What's New in Python 3.2? | |
| ========================= | |
| *Release date: 20-Feb-2011* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #11249: Fix potential crashes when using the limited API. | |
| Build | |
| ----- | |
| - Issue #11222: Fix non-framework shared library build on Mac OS X. | |
| - Issue #11184: Fix large-file support on AIX. | |
| - Issue #941346: Fix broken shared library build on AIX. | |
| Documentation | |
| ------------- | |
| - Issue #10709: Add updated AIX notes in Misc/README.AIX. | |
| What's New in Python 3.2 Release Candidate 3? | |
| ============================================= | |
| *Release date: 13-Feb-2011* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #11134: Add missing fields to typeslots.h. | |
| - Issue #11135: Remove redundant doc field from PyType_Spec. | |
| - Issue #11067: Add PyType_GetFlags, to support PyUnicode_Check in the limited | |
| ABI. | |
| - Issue #11118: Fix bogus export of None in python3.dll. | |
| Library | |
| ------- | |
| - Issue #11116: any error during addition of a message to a mailbox now causes a | |
| rollback, instead of leaving the mailbox partially modified. | |
| - Issue #11132: Fix passing of "optimize" parameter when recursing in | |
| compileall.compile_dir(). | |
| - Issue #11110: Fix a potential decref of a NULL in sqlite3. | |
| - Issue #8275: Fix passing of callback arguments with ctypes under Win64. Patch | |
| by Stan Mihai. | |
| Build | |
| ----- | |
| - Issue #11079: The /Applications/Python x.x folder created by the Mac OS X | |
| installers now includes a link to the installed documentation and no longer | |
| includes an Extras directory. The Tools directory is now installed in the | |
| framework under share/doc. | |
| - Issue #11121: Fix building with --enable-shared. | |
| Tests | |
| ----- | |
| - Issue #10971: test_zipimport_support is once again compatible with the refleak | |
| hunter feature of test.regrtest. | |
| What's New in Python 3.2 Release Candidate 2? | |
| ============================================= | |
| *Release date: 30-Jan-2011* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #10451: memoryview objects could allow mutating a readable buffer. | |
| Initial patch by Ross Lagerwall. | |
| Library | |
| ------- | |
| - Issue #9124: mailbox now accepts binary input and reads and writes mailbox | |
| files in binary mode, using the email package's binary support to parse | |
| arbitrary email messages. StringIO and text file input is deprecated, | |
| and string input fails early if non-ASCII characters are used, where | |
| previously it would fail when the email was processed in a later step. | |
| - Issue #10845: Mitigate the incompatibility between the multiprocessing | |
| module on Windows and the use of package, zipfile or directory execution | |
| by special casing main modules that actually *are* called __main__.py. | |
| - Issue #11045: Protect logging call against None argument. | |
| - Issue #11052: Correct IDLE menu accelerators on Mac OS X for Save | |
| commands. | |
| - Issue #11053: Fix IDLE "Syntax Error" windows to behave as in 2.x, | |
| preventing a confusing hung appearance on OS X with the windows | |
| obscured. | |
| - Issue #10940: Workaround an IDLE hang on Mac OS X 10.6 when using the | |
| menu accelerators for Open Module, Go to Line, and New Indent Width. | |
| The accelerators still work but no longer appear in the menu items. | |
| - Issue #10989: Fix a crash on SSLContext.load_verify_locations(None, True). | |
| - Issue #11020: Command-line pyclbr was broken because of missing 2-to-3 | |
| conversion. | |
| - Issue #11019: Fixed BytesGenerator so that it correctly handles a Message | |
| with a None body. | |
| - Issue #11014: Make 'filter' argument in tarfile.Tarfile.add() into a | |
| keyword-only argument. The preceding positional argument was deprecated, | |
| so it made no sense to add filter as a positional argument. | |
| - Issue #11004: Repaired edge case in deque.count(). | |
| - Issue #10974: IDLE no longer crashes if its recent files list includes files | |
| with non-ASCII characters in their path names. | |
| - Have hashlib.algorithms_available and hashlib.algorithms_guaranteed both | |
| return sets instead of one returning a tuple and the other a frozenset. | |
| - Issue #10987: Fix the recursion limit handling in the _pickle module. | |
| - Issue #10983: Fix several bugs making tunnel requests in http.client. | |
| - Issue #10955: zipimport uses ASCII encoding instead of cp437 to decode | |
| filenames, at bootstrap, if the codec registry is not ready yet. It is still | |
| possible to have non-ASCII filenames using the Unicode flag (UTF-8 encoding) | |
| for all file entries in the ZIP file. | |
| - Issue #10949: Improved robustness of rotating file handlers. | |
| - Issue #10955: Fix a potential crash when trying to mmap() a file past its | |
| length. Initial patch by Ross Lagerwall. | |
| - Issue #10898: Allow compiling the posix module when the C library defines | |
| a symbol named FSTAT. | |
| - Issue #10980: the HTTP server now encodes headers with iso-8859-1 (latin1) | |
| encoding. This is the preferred encoding of PEP 3333 and the base encoding | |
| of HTTP 1.1. | |
| - To match the behaviour of HTTP server, the HTTP client library now also | |
| encodes headers with iso-8859-1 (latin1) encoding. It was already doing | |
| that for incoming headers which makes this behaviour now consistent in | |
| both incoming and outgoing direction. | |
| - Issue #9509: argparse now properly handles IOErrors raised by | |
| argparse.FileType. | |
| - Issue #10961: The new pydoc server now better handles exceptions raised | |
| during request handling. | |
| - Issue #10680: Fix mutually exclusive arguments for argument groups in | |
| argparse. | |
| Build | |
| ----- | |
| - Issue #11054: Allow Mac OS X installer builds to again work on 10.5 with | |
| the system-provided Python. | |
| What's New in Python 3.2 Release Candidate 1 | |
| ============================================ | |
| *Release date: 16-Jan-2011* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #10889: range indexing and slicing now works correctly on ranges with | |
| a length that exceeds sys.maxsize. | |
| - Issue #10892: Don't segfault when trying to delete __abstractmethods__ from a | |
| class. | |
| - Issue #8020: Avoid a crash where the small objects allocator would read | |
| non-Python managed memory while it is being modified by another thread. Patch | |
| by Matt Bandy. | |
| - Issue #10841: On Windows, set the binary mode on stdin, stdout, stderr and all | |
| io.FileIO objects (to not translate newlines, \r\n <=> \n). The Python parser | |
| translates newlines (\r\n => \n). | |
| - Remove buffer API from stable ABI for now, see #10181. | |
| - Issue #8651: PyArg_Parse*() functions raise an OverflowError if the file | |
| doesn't have PY_SSIZE_T_CLEAN define and the size doesn't fit in an int | |
| (length bigger than 2^31-1 bytes). | |
| - Issue #9015, #9611: FileIO.readinto(), FileIO.write(), os.write() and | |
| stdprinter.write() clamp the length to INT_MAX on Windows. | |
| - Issue #8278: On Windows and with a NTFS filesystem, os.stat() and os.utime() | |
| can now handle dates after 2038. | |
| - Issue #10780: PyErr_SetFromWindowsErrWithFilename() and | |
| PyErr_SetExcFromWindowsErrWithFilename() decode the filename from the | |
| filesystem encoding instead of UTF-8. | |
| - Issue #10779: PyErr_WarnExplicit() decodes the filename from the filesystem | |
| encoding instead of UTF-8. | |
| - Add sys.flags attribute for the new -q command-line option. | |
| - Issue #11506: Trying to assign to a bytes literal should result in a | |
| SyntaxError. | |
| Library | |
| ------- | |
| - Issue #10916: mmap should not segfault when a file is mapped using 0 as length | |
| and a non-zero offset, and an attempt to read past the end of file is made | |
| (IndexError is raised instead). Patch by Ross Lagerwall. | |
| - Issue #10154, #10090: change the normalization of UTF-8 to "UTF-8" instead | |
| of "UTF8" in the locale module as the latter is not supported MacOSX and OpenBSD. | |
| - Issue #10907: Warn OS X 10.6 IDLE users to use ActiveState Tcl/Tk 8.5, rather | |
| than the currently problematic Apple-supplied one, when running with the | |
| 64-/32-bit installer variant. | |
| - Issue #4953: cgi.FieldStorage and cgi.parse() parse the request as bytes, not | |
| as unicode, and accept binary files. Add encoding and errors attributes to | |
| cgi.FieldStorage. Patch written by Pierre Quentel (with many inputs by Glenn | |
| Linderman). | |
| - Add encoding and errors arguments to urllib.parse_qs() and urllib.parse_qsl(). | |
| - Issue #10899: No function type annotations in the standard library. Removed | |
| function type annotations from _pyio.py. | |
| - Issue #10875: Update Regular Expression HOWTO; patch by 'SilentGhost'. | |
| - Issue #10872: The repr() of TextIOWrapper objects now includes the mode | |
| if available. | |
| - Issue #10869: Fixed bug where ast.increment_lineno modified the root node | |
| twice. | |
| - Issue #5871: email.header.Header.encode now raises an error if any | |
| continuation line in the formatted value has no leading white space and looks | |
| like a header. Since Generator uses Header to format all headers, this check | |
| is made for all headers in any serialized message at serialization time. This | |
| provides protection against header injection attacks. | |
| - Issue #10859: Make ``contextlib.GeneratorContextManager`` officially | |
| private by renaming it to ``_GeneratorContextManager``. | |
| - Issue #10042: Fixed the total_ordering decorator to handle cross-type | |
| comparisons that could lead to infinite recursion. | |
| - Issue #10686: the email package now :rfc:`2047`\ -encodes headers with | |
| non-ASCII bytes (parsed by a BytesParser) when doing conversion to 7bit-clean | |
| presentation, instead of replacing them with ?s. | |
| - email.header.Header was incorrectly encoding folding whitespace when | |
| rfc2047-encoding header values with embedded newlines, leaving them without | |
| folding whitespace. It now uses the continuation_ws, as it does for | |
| continuation lines that it creates itself. | |
| - Issue #1777412, #10827: Changed the rules for 2-digit years. The | |
| time.asctime(), time.ctime() and time.strftime() functions will now format | |
| any year when ``time.accept2dyear`` is False and will accept years >= 1000 | |
| otherwise. ``time.mktime`` and ``time.strftime`` now accept full range | |
| supported by the OS. With Visual Studio or on Solaris, the year is limited to | |
| the range [1; 9999]. Conversion of 2-digit years to 4-digit is deprecated. | |
| - Issue #7858: Raise an error properly when os.utime() fails under Windows | |
| on an existing file. | |
| - Issue #3839: wsgiref should not override a Content-Length header set by | |
| the application. Initial patch by Clovis Fabricio. | |
| - Issue #10492: bdb.Bdb.run() only traces the execution of the code, not the | |
| compilation (if the input is a string). | |
| - Issue #7995: When calling accept() on a socket with a timeout, the returned | |
| socket is now always blocking, regardless of the operating system. | |
| - Issue #10756: atexit normalizes the exception before displaying it. Patch by | |
| Andreas Stührk. | |
| - Issue #10790: email.header.Header.append's charset logic now works correctly | |
| for charsets whose output codec is different from its input codec. | |
| - Issue #10819: SocketIO.name property returns -1 when its closed, instead of | |
| raising a ValueError, to fix repr(). | |
| - Issue #8650: zlib.compress() and zlib.decompress() raise an OverflowError if | |
| the input buffer length doesn't fit into an unsigned int (length bigger than | |
| 2^32-1 bytes). | |
| - Issue #6643: Reinitialize locks held within the threading module after fork to | |
| avoid a potential rare deadlock or crash on some platforms. | |
| - Issue #10806, issue #9905: Fix subprocess pipes when some of the standard file | |
| descriptors (0, 1, 2) are closed in the parent process. Initial patch by Ross | |
| Lagerwall. | |
| - `unittest.TestCase` can be instantiated without a method name; for simpler | |
| exploration from the interactive interpreter. | |
| - Issue #10798: Reject supporting concurrent.futures if the system has too | |
| few POSIX semaphores. | |
| - Issue #10807: Remove base64, bz2, hex, quopri, rot13, uu and zlib codecs from | |
| the codec aliases. They are still accessible via codecs.lookup(). | |
| - Issue #10801: In zipfile, support different encodings for the header and the | |
| filenames. | |
| - Issue #6285: IDLE no longer crashes on missing help file; patch by Scott | |
| David Daniels. | |
| - Fix collections.OrderedDict.setdefault() so that it works in subclasses that | |
| define __missing__(). | |
| - Issue #10786: unittest.TextTestRunner default stream no longer bound at import | |
| time. `sys.stderr` now looked up at instantiation time. Fix contributed by | |
| Mark Roddy. | |
| - Issue #10753: Characters ';', '=' and ',' in the PATH_INFO environment variable | |
| won't be quoted when the URI is constructed by the wsgiref.util's request_uri | |
| method. According to RFC 3986, these characters can be a part of params in | |
| PATH component of URI and need not be quoted. | |
| - Issue #10738: Fix webbrowser.Opera.raise_opts. | |
| - Issue #9824: SimpleCookie now encodes , and ; in values to cater to how | |
| browsers actually parse cookies. | |
| - Issue #9333: os.symlink now available regardless of user privileges. The | |
| function now raises OSError on Windows >=6.0 when the user is unable to create | |
| symbolic links. XP and 2003 still raise NotImplementedError. | |
| - Issue #10783: struct.pack() no longer implicitly encodes unicode to UTF-8. | |
| - Issue #10730: Add SVG mime types to mimetypes module. | |
| - Issue #10768: Make the Tkinter ScrolledText widget work again. | |
| - Issue #10777: Fix "dictionary changed size during iteration" bug in | |
| ElementTree register_namespace(). | |
| - Issue #10626: test_logging now preserves logger disabled states. | |
| - Issue #10774: test_logging now removes temp files created during tests. | |
| - Issue #5258/#10642: if site.py encounters a .pth file that generates an error, | |
| it now prints the filename, line number, and traceback to stderr and skips | |
| the rest of that individual file, instead of stopping processing entirely. | |
| - Issue #10763: subprocess.communicate() closes stdout and stderr if both are | |
| pipes (bug specific to Windows). | |
| - Issue #1693546: fix email.message RFC 2231 parameter encoding to be in better | |
| compliance (no "s around encoded values). | |
| - Improved the diff message in the unittest module's assertCountEqual(). | |
| - Issue #1155362: email.utils.parsedate_tz now handles a missing space before | |
| the '-' of a timezone field as well as before a '+'. | |
| - Issue #4871: The zipfile module now gives a more useful error message if | |
| an attempt is made to use a string to specify the archive password. | |
| - Issue #10750: The ``raw`` attribute of buffered IO objects is now read-only. | |
| - Deprecated assertDictContainsSubset() in the unittest module. | |
| C-API | |
| ----- | |
| - PyObject_CallMethod now passes along any underlying AttributeError from | |
| PyObject_GetAttr, instead of replacing it with something less informative | |
| - Issue #10913: Deprecate misleading functions PyEval_AcquireLock() and | |
| PyEval_ReleaseLock(). The thread-state aware APIs should be used instead. | |
| - Issue #10333: Remove ancient GC API, which has been deprecated since Python | |
| 2.2. | |
| Build | |
| ----- | |
| - Issue #10843: Update third-party library versions used in OS X 32-bit | |
| installer builds: bzip2 1.0.6, readline 6.1.2, SQLite 3.7.4 (with FTS3/FTS4 | |
| and RTREE enabled), and ncursesw 5.5 (wide-char support enabled). | |
| - Issue #10820: Fix OS X framework installs to support version-specific | |
| scripts (#10679). | |
| - Issue #7716: Under Solaris, don't assume existence of /usr/xpg4/bin/grep in | |
| the configure script but use $GREP instead. Patch by Fabian Groffen. | |
| - Issue #10475: Don't hardcode compilers for LDSHARED/LDCXXSHARED on NetBSD | |
| and DragonFly BSD. Patch by Nicolas Joly. | |
| - Issue #10679: The "idle", "pydoc" and "2to3" scripts are now installed with | |
| a version-specific suffix on "make altinstall". | |
| - Issue #10655: Fix the build on PowerPC on Linux with GCC when building with | |
| timestamp profiling (--with-tsc): the preprocessor test for the PowerPC | |
| support now looks for "__powerpc__" as well as "__ppc__": the latter seems to | |
| only be present on OS X; the former is the correct one for Linux with GCC. | |
| - Issue #1099: Fix the build on MacOSX when building a framework with pydebug | |
| using GCC 4.0. | |
| Tools/Demos | |
| ----------- | |
| - Issue #10843: Install the Tools directory on OS X in the applications Extras | |
| (/Applications/Python 3.n/Extras/) where the Demo directory had previous been | |
| installed. | |
| - Issue #7962: The Demo directory is gone. Most of the old and unmaintained | |
| demos have been removed, others integrated in documentation or a new | |
| Tools/demo subdirectory. | |
| - Issue #10502: Addition of the unittestgui tool. Originally by Steve Purcell. | |
| Updated for test discovery by Mark Roddy and Python 3 compatibility by Brian | |
| Curtin. | |
| Tests | |
| ----- | |
| - Issue #11910: Fix test_heapq to skip the C tests when _heapq is missing. | |
| - Fix test_startfile to wait for child process to terminate before finishing. | |
| - Issue #10822: Fix test_posix:test_getgroups failure under Solaris. Patch | |
| by Ross Lagerwall. | |
| - Make the --coverage flag work for test.regrtest. | |
| - Issue #1677694: Refactor and improve test_timeout. Original patch by | |
| Björn Lindqvist. | |
| - Issue #5485: Add tests for the UseForeignDTD method of expat parser objects. | |
| Patch by Jean-Paul Calderone and Sandro Tosi. | |
| - Issue #6293: Have regrtest.py echo back sys.flags. This is done by default in | |
| whole runs and enabled selectively using ``--header`` when running an explicit | |
| list of tests. Original patch by Collin Winter. | |
| What's New in Python 3.2 Beta 2? | |
| ================================ | |
| *Release date: 19-Dec-2010* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #8844: Regular and recursive lock acquisitions can now be interrupted | |
| by signals on platforms using pthreads. Patch by Reid Kleckner. | |
| - Issue #4236: PyModule_Create2 now checks the import machinery directly | |
| rather than the Py_IsInitialized flag, avoiding a Fatal Python | |
| error in certain circumstances when an import is done in __del__. | |
| - Issue #5587: add a repr to dict_proxy objects. Patch by David Stanek and | |
| Daniel Urban. | |
| Library | |
| ------- | |
| - Issue #3243: Support iterable bodies in httplib. Patch Contributions by | |
| Xuanji Li and Chris AtLee. | |
| - Issue #10611: SystemExit exception will no longer kill a unittest run. | |
| - Issue #9857: It is now possible to skip a test in a setUp, tearDown or clean | |
| up function. | |
| - Issue #10573: use actual/expected consistently in unittest methods. | |
| The order of the args of assertCountEqual is also changed. | |
| - Issue #9286: email.utils.parseaddr no longer concatenates blank-separated | |
| words in the local part of email addresses, thereby preserving the input. | |
| - Issue #6791: Limit header line length (to 65535 bytes) in http.client | |
| and http.server, to avoid denial of services from the other party. | |
| - Issue #10404: Use ctl-button-1 on OSX for the context menu in Idle. | |
| - Issue #9907: Fix tab handling on OSX when using editline by calling | |
| rl_initialize first, then setting our custom defaults, then reading .editrc. | |
| - Issue #4188: Avoid creating dummy thread objects when logging operations | |
| from the threading module (with the internal verbose flag activated). | |
| - Issue #10711: Remove HTTP 0.9 support from http.client. The ``strict`` | |
| parameter to HTTPConnection and friends is deprecated. | |
| - Issue #9721: Fix the behavior of urljoin when the relative url starts with a | |
| ';' character. Patch by Wes Chow. | |
| - Issue #10714: Limit length of incoming request in http.server to 65536 bytes | |
| for security reasons. Initial patch by Ross Lagerwall. | |
| - Issue #9558: Fix distutils.command.build_ext with VS 8.0. | |
| - Issue #10667: Fast path for collections.Counter(). | |
| - Issue #10695: passing the port as a string value to telnetlib no longer | |
| causes debug mode to fail. | |
| - Issue #1078919: add_header now automatically RFC2231 encodes parameters | |
| that contain non-ascii values. | |
| - Issue #10188 (partial resolution): tempfile.TemporaryDirectory emits | |
| a warning on sys.stderr rather than throwing a misleading exception | |
| if cleanup fails due to nulling out of modules during shutdown. | |
| Also avoids an AttributeError when mkdtemp call fails and issues | |
| a ResourceWarning on implicit cleanup via __del__. | |
| - Issue #10107: Warn about unsaved files in IDLE on OSX. | |
| - Issue #7213: subprocess.Popen's default for close_fds has been changed. | |
| It is now True in most cases other than on Windows when input, output or | |
| error handles are provided. | |
| - Issue #6559: subprocess.Popen has a new pass_fds parameter (actually | |
| added in 3.2beta1) to allow specifying a specific list of file descriptors | |
| to keep open in the child process. | |
| - Issue #1731717: Fixed the problem where subprocess.wait() could cause an | |
| OSError exception when The OS had been told to ignore SIGCLD in our process | |
| or otherwise not wait for exiting child processes. | |
| Tests | |
| ----- | |
| - Issue #775964: test_grp now skips YP/NIS entries instead of failing when | |
| encountering them. | |
| Tools/Demos | |
| ----------- | |
| - Issue #6075: IDLE on Mac OS X now works with both Carbon AquaTk and | |
| Cocoa AquaTk. | |
| - Issue #10710: ``Misc/setuid-prog.c`` is removed from the source tree. | |
| - Issue #10706: Remove outdated script runtests.sh. Either ``make test`` | |
| or ``python -m test`` should be used instead. | |
| Build | |
| ----- | |
| - The Windows build now uses Tcl/Tk 8.5.9 and sqlite3 3.7.4. | |
| - Issue #9234: argparse supports alias names for subparsers. | |
| What's New in Python 3.2 Beta 1? | |
| ================================ | |
| *Release date: 05-Dec-2010* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #10630: Return dict views from the dict proxy keys()/values()/items() | |
| methods. | |
| - Issue #10596: Fix float.__mod__ to have the same behaviour as float.__divmod__ | |
| with respect to signed zeros. -4.0 % 4.0 should be 0.0, not -0.0. | |
| - Issue #1772833: Add the -q command-line option to suppress copyright and | |
| version output in interactive mode. | |
| - Provide an *optimize* parameter in the built-in compile() function. | |
| - Fixed several corner case issues on Windows in os.stat/os.lstat related to | |
| reparse points. | |
| - PEP 384 (Defining a Stable ABI) is implemented. | |
| - Issue #2690: Range objects support negative indices and slicing. | |
| - Issue #9915: Speed up sorting with a key. | |
| - Issue #8685: Speed up set difference ``a - b`` when source set ``a`` is much | |
| larger than operand ``b``. Patch by Andrew Bennetts. | |
| - Issue #10518: Bring back the callable() builtin. | |
| - Issue #7094: Added alternate formatting (specified by '#') to ``__format__`` | |
| method of float, complex, and Decimal. This allows more precise control over | |
| when decimal points are displayed. | |
| - Issue #10474: range.count() should return integers. | |
| - Issue #1574217: isinstance now catches only AttributeError, rather than | |
| masking all errors. | |
| Library | |
| ------- | |
| - logging: added "handler of last resort". See http://bit.ly/last-resort-handler | |
| - test.support: Added TestHandler and Matcher classes for better support of | |
| assertions about logging. | |
| - Issue #4391: Use proper plural forms in argparse. | |
| - Issue #10601: sys.displayhook uses 'backslashreplace' error handler on | |
| UnicodeEncodeError. | |
| - Add the "display" and "undisplay" pdb commands. | |
| - Issue #7245: Add a SIGINT handler in pdb that allows breaking a program again | |
| after a "continue" command. | |
| - Add the "interact" pdb command. | |
| - Issue #7905: Actually respect the keyencoding parameter to shelve.Shelf. | |
| - Issue #1569291: Speed up array.repeat(). | |
| - Provide an interface to set the optimization level of compilation in | |
| py_compile, compileall and zipfile.PyZipFile. | |
| - Issue #7904: Changes to urllib.parse.urlsplit to handle schemes as defined by | |
| RFC3986. Anything before :// is considered a scheme and is followed by an | |
| authority (or netloc) and by '/' led path, which is optional. | |
| - Issue #6045: dbm.gnu databases now support get() and setdefault() methods. | |
| - Issue #10620: `python -m unittest` can accept file paths instead of module | |
| names for running specific tests. | |
| - Issue #9424: Deprecate the `unittest.TestCase` methods `assertEquals`, | |
| `assertNotEquals`, `assertAlmostEquals`, `assertNotAlmostEquals` and `assert_` | |
| and replace them with the correct methods in the Python test suite. | |
| - Issue #10272: The ssl module now raises socket.timeout instead of a generic | |
| SSLError on socket timeouts. | |
| - Issue #10528: Allow translators to reorder placeholders in localizable | |
| messages from argparse. | |
| - Issue #10497: Fix incorrect use of gettext in argparse. | |
| - Issue #10478: Reentrant calls inside buffered IO objects (for example by | |
| way of a signal handler) now raise a RuntimeError instead of freezing the | |
| current process. | |
| - logging: Added getLogRecordFactory/setLogRecordFactory with docs and tests. | |
| - Issue #10549: Fix pydoc traceback when text-documenting certain classes. | |
| - Issue #2001: New HTML server with enhanced web page features. Patch by Ron | |
| Adam. | |
| - Issue #10360: In WeakSet, do not raise TypeErrors when testing for membership | |
| of non-weakrefable objects. | |
| - Issue #940286: pydoc.Helper.help() ignores input/output init parameters. | |
| - Issue #1745035: Add a command size and data size limit to smtpd.py, to prevent | |
| DoS attacks. Patch by Savio Sena. | |
| - Issue #4925: Add filename to error message when executable can't be found in | |
| subprocess. | |
| - Issue #10391: Don't dereference invalid memory in error messages in the ast | |
| module. | |
| - Issue #10027: st_nlink was not being set on Windows calls to os.stat or | |
| os.lstat. Patch by Hirokazu Yamamoto. | |
| - Issue #9333: Expose os.symlink only when the SeCreateSymbolicLinkPrivilege is | |
| held by the user's account, i.e., when the function can actually be used. | |
| - Issue #8879: Add os.link support for Windows. | |
| - Issue #7911: ``unittest.TestCase.longMessage`` defaults to True for improved | |
| failure messages by default. Patch by Mark Roddy. | |
| - Issue #1486713: HTMLParser now has an optional tolerant mode where it tries to | |
| guess at the correct parsing of invalid html. | |
| - Issue #10554: Add context management protocol support to subprocess.Popen objects. | |
| - Issue #8989: email.utils.make_msgid now has a domain parameter that can | |
| override the domain name used in the generated msgid. | |
| - Issue #9299: Add exist_ok parameter to os.makedirs to suppress the 'File | |
| exists' exception when a target directory already exists with the specified | |
| mode. Patch by Ray Allen. | |
| - Issue #9573: os.fork() now works correctly when triggered as a side effect of | |
| a module import. | |
| - Issue #10464: netrc now correctly handles lines with embedded '#' characters. | |
| - Added itertools.accumulate(). | |
| - Issue #4113: Added custom ``__repr__`` method to ``functools.partial``. | |
| Original patch by Daniel Urban. | |
| - Issue #10273: Rename `assertRegexpMatches` and `assertRaisesRegexp` to | |
| `assertRegex` and `assertRaisesRegex`. | |
| - Issue #10535: Enable silenced warnings in unittest by default. | |
| - Issue #9873: The URL parsing functions in urllib.parse now accept ASCII byte | |
| sequences as input in addition to character strings. | |
| - Issue #10586: The statistics API for the new functools.lru_cache has been | |
| changed to a single cache_info() method returning a named tuple. | |
| - Issue #10323: itertools.islice() now consumes the minimum number of inputs | |
| before stopping. Formerly, the final state of the underlying iterator was | |
| undefined. | |
| - Issue #10565: The collections.Iterator ABC now checks for both __iter__ and | |
| __next__. | |
| - Issue #10242: Fixed implementation of unittest.ItemsEqual and gave it a new | |
| more informative name, unittest.CountEqual. | |
| - Issue #10561: In pdb, clear the breakpoints by the breakpoint number. | |
| - Issue #2986: difflib.SequenceMatcher gets a new parameter, autojunk, which can | |
| be set to False to turn off the previously undocumented 'popularity' | |
| heuristic. Patch by Terry Reedy and Eli Bendersky. | |
| - Issue #10534: in difflib, expose bjunk and bpopular sets; deprecate | |
| undocumented and now redundant isbjunk and isbpopular methods. | |
| - Issue #9846: zipfile is now correctly closing underlying file objects. | |
| - Issue #10459: Update CJK character names to Unicode 6.0. | |
| - Issue #4493: urllib.request adds '/' in front of path components which does not | |
| start with '/. Common behavior exhibited by browsers and other clients. | |
| - Issue #6378: idle.bat now runs with the appropriate Python version rather than | |
| the system default. Patch by Sridhar Ratnakumar. | |
| - Issue #10470: 'python -m unittest' will now run test discovery by default, | |
| when no extra arguments have been provided. | |
| - Issue #3709: BaseHTTPRequestHandler will buffer the headers and write to | |
| output stream only when end_headers is invoked. This is a speedup and an | |
| internal optimization. Patch by Andrew Shaaf. | |
| - Issue #10220: Added inspect.getgeneratorstate. Initial patch by Rodolpho | |
| Eckhardt. | |
| - Issue #10453: compileall now uses argparse instead of getopt, and thus | |
| provides clean output when called with '-h'. | |
| - Issue #8078: Add constants for higher baud rates in the termios module. Patch | |
| by Rodolpho Eckhardt. | |
| - Issue #10407: Fix two NameErrors in distutils. | |
| - Issue #10371: Deprecated undocumented functions in the trace module. | |
| - Issue #10467: Fix BytesIO.readinto() after seeking into a position after the | |
| end of the file. | |
| - configparser: 100% test coverage. | |
| - Issue #10499: configparser supports pluggable interpolation handlers. The | |
| default classic interpolation handler is called BasicInterpolation. Another | |
| interpolation handler added (ExtendedInterpolation) which supports the syntax | |
| used by zc.buildout (e.g. interpolation between sections). | |
| - configparser: the SafeConfigParser class has been renamed to ConfigParser. | |
| The legacy ConfigParser class has been removed but its interpolation mechanism | |
| is still available as LegacyInterpolation. | |
| - configparser: Usage of RawConfigParser is now discouraged for new projects | |
| in favor of ConfigParser(interpolation=None). | |
| - Issue #1682942: configparser supports alternative option/value delimiters. | |
| - Issue #5412: configparser supports mapping protocol access. | |
| - Issue #9411: configparser supports specifying encoding for read operations. | |
| - Issue #9421: configparser's getint(), getfloat() and getboolean() methods | |
| accept vars and default arguments just like get() does. | |
| - Issue #9452: configparser supports reading from strings and dictionaries | |
| (thanks to the mapping protocol API, the latter can be used to copy data | |
| between parsers). | |
| - configparser: accepted INI file structure is now customizable, including | |
| comment prefixes, name of the DEFAULT section, empty lines in multiline | |
| values, and indentation. | |
| - Issue #10326: unittest.TestCase instances can be pickled. | |
| - Issue #9926: Wrapped TestSuite subclass does not get __call__ executed. | |
| - Issue #9920: Skip tests for cmath.atan and cmath.atanh applied to complex | |
| zeros on systems where the log1p function fails to respect the sign of zero. | |
| This fixes a test failure on AIX. | |
| - Issue #9732: Addition of getattr_static to the inspect module. | |
| - Issue #10446: Module documentation generated by pydoc now links to a | |
| version-specific online reference manual. | |
| - Make the 'No module named' exception message from importlib consistent. | |
| - Issue #10443: Add the SSLContext.set_default_verify_paths() method. | |
| - Issue #10440: Support RUSAGE_THREAD as a constant in the resource module. | |
| Patch by Robert Collins. | |
| - Issue #10429: IMAP.starttls() stored the capabilities as bytes objects, rather | |
| than strings. | |
| C-API | |
| ----- | |
| - Issue #10557: Added a new API function, PyUnicode_TransformDecimalToASCII(), | |
| which transforms non-ASCII decimal digits in a Unicode string to their ASCII | |
| equivalents. | |
| - Issue #9518: Extend the PyModuleDef_HEAD_INIT macro to explicitly | |
| zero-initialize all fields, fixing compiler warnings seen when building | |
| extension modules with gcc with "-Wmissing-field-initializers" (implied by | |
| "-W"). | |
| - Issue #10255: Fix reference leak in Py_InitializeEx(). Patch by Neil | |
| Schemenauer. | |
| - structseq.h is now included in Python.h. | |
| - Loosen PyArg_ValidateKeywordArguments to allow dict subclasses. | |
| Tests | |
| ----- | |
| - regrtest.py once again ensures the test directory is removed from sys.path | |
| when it is invoked directly as the __main__ module. | |
| - `python -m test` can be used to run the test suite as well as `python -m | |
| test.regrtest`. | |
| - Do not fail test_socket when the IP address of the local hostname cannot be | |
| looked up. | |
| - Issue #8886: Use context managers throughout test_zipfile. Patch by Eric | |
| Carstensen. | |
| Build | |
| ----- | |
| - Issue #10325: Fix two issues in the fallback definitions for PY_ULLONG_MAX and | |
| PY_LLONG_MAX that made them unsuitable for use in preprocessor conditionals. | |
| Documentation | |
| ------------- | |
| - Issue #10299: List the built-in functions in a table in functions.rst. | |
| What's New in Python 3.2 Alpha 4? | |
| ================================= | |
| *Release date: 13-Nov-2010* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #10372: Import the warnings module only after the IO library is | |
| initialized, so as to avoid bootstrap issues with the '-W' option. | |
| - Issue #10293: Remove obsolete field in the PyMemoryView structure, unused | |
| undocumented value PyBUF_SHADOW, and strangely-looking code in | |
| PyMemoryView_GetContiguous. | |
| - Issue #6081: Add str.format_map(), similar to ``str.format(**mapping)``. | |
| - If FileIO.__init__ fails, close the file descriptor. | |
| - Issue #10221: dict.pop(k) now has a key error message that includes the | |
| missing key (same message d[k] returns for missing keys). | |
| - Issue #5437: A preallocated MemoryError instance should not keep traceback | |
| data (including local variables caught in the stack trace) alive infinitely. | |
| - Issue #10186: Fix the SyntaxError caret when the offset is equal to the length | |
| of the offending line. | |
| - Issue #10089: Add support for arbitrary -X options on the command line. They | |
| can be retrieved through a new attribute ``sys._xoptions``. | |
| - Issue #4388: On Mac OS X, decode command line arguments from UTF-8, instead of | |
| the locale encoding. If the LANG (and LC_ALL and LC_CTYPE) environment | |
| variable is not set, the locale encoding is ISO-8859-1, whereas most programs | |
| (including Python) expect UTF-8. Python already uses UTF-8 for the filesystem | |
| encoding and to encode command line arguments on this OS. | |
| - Issue #9713, #10114: Parser functions (e.g. PyParser_ASTFromFile) expect | |
| filenames encoded to the filesystem encoding with the surrogateescape error | |
| handler (to support undecodable bytes), instead of UTF-8 in strict mode. | |
| - Issue #9997: Don't let the name "top" have special significance in scope | |
| resolution. | |
| - Issue #9862: Compensate for broken PIPE_BUF in AIX by hard coding its value as | |
| the default 512 when compiling on AIX. | |
| - Use locale encoding instead of UTF-8 to encode and decode filenames if | |
| Py_FileSystemDefaultEncoding is not set. | |
| - Issue #10095: fp_setreadl() doesn't reopen the file, instead reuse the file | |
| descriptor. | |
| - Issue #9418: Moved private string methods ``_formatter_parser`` and | |
| ``_formatter_field_name_split`` into a new ``_string`` module. | |
| - Issue #9992: Remove PYTHONFSENCODING environment variable. | |
| Library | |
| ------- | |
| - Issue #12943: python -m tokenize support has been added to tokenize. | |
| - Issue #10465: fix broken delegating of attributes by gzip._PaddedFile. | |
| - Issue #10356: Decimal.__hash__(-1) should return -2. | |
| - Issue #1553375: logging: Added stack_info kwarg to display stack information. | |
| - Issue #5111: IPv6 Host in the Header is wrapped inside [ ]. Patch by Chandru. | |
| - Fix Fraction.__hash__ so that Fraction.__hash__(-1) is -2. (See also issue | |
| #10356.) | |
| - Issue #4471: Add the IMAP.starttls() method to enable encryption on standard | |
| IMAP4 connections. Original patch by Lorenzo M. Catucci. | |
| - Issue #1466065: Add 'validate' option to base64.b64decode to raise an error if | |
| there are non-base64 alphabet characters in the input. | |
| - Issue #10386: Add __all__ to token module; this simplifies importing in | |
| tokenize module and prevents leaking of private names through ``import *``. | |
| - Issue #4471: Properly shutdown socket in IMAP.shutdown(). Patch by Lorenzo | |
| M. Catucci. | |
| - Fix IMAP.login() to work properly. | |
| - Issue #9244: multiprocessing pool worker processes could terminate | |
| unexpectedly if the return value of a task could not be pickled. Only the | |
| ``repr`` of such errors are now sent back, wrapped in an | |
| ``MaybeEncodingError`` exception. | |
| - Issue #9244: The ``apply_async()`` and ``map_async()`` methods of | |
| ``multiprocessing.Pool`` now accepts an ``error_callback`` argument. This can | |
| be a callback with the signature ``callback(exc)``, which will be called if | |
| the target raises an exception. | |
| - Issue #10022: The dictionary returned by the ``getpeercert()`` method of SSL | |
| sockets now has additional items such as ``issuer`` and ``notBefore``. | |
| - ``usenetrc`` is now false by default for NNTP objects. | |
| - Issue #1926: Add support for NNTP over SSL on port 563, as well as STARTTLS. | |
| Patch by Andrew Vant. | |
| - Issue #10335: Add tokenize.open(), detect the file encoding using | |
| tokenize.detect_encoding() and open it in read only mode. | |
| - Issue #10321: Add support for binary data to smtplib.SMTP.sendmail, and a new | |
| method send_message to send an email.message.Message object. | |
| - Issue #6011: sysconfig and distutils.sysconfig use the surrogateescape error | |
| handler to parse the Makefile file. Avoid a UnicodeDecodeError if the source | |
| code directory name contains a non-ASCII character and the locale encoding is | |
| ASCII. | |
| - Issue #10329: The trace module writes reports using the input Python script | |
| encoding, instead of the locale encoding. Patch written by Alexander | |
| Belopolsky. | |
| - Issue #10126: Fix distutils' test_build when Python was built with | |
| --enable-shared. | |
| - Issue #9281: Prevent race condition with mkdir in distutils. Patch by | |
| Arfrever. | |
| - Issue #10229: Fix caching error in gettext. | |
| - Issue #10252: Close file objects in a timely manner in distutils code and | |
| tests. Patch by Brian Brazil, completed by Éric Araujo. | |
| - Issue #10180: Pickling file objects is now explicitly forbidden, since | |
| unpickling them produced nonsensical results. | |
| - Issue #10311: The signal module now restores errno before returning from its | |
| low-level signal handler. Patch by Hallvard B Furuseth. | |
| - Issue #10282: Add a ``nntp_implementation`` attribute to NNTP objects. | |
| - Issue #10283: Add a ``group_pattern`` argument to NNTP.list(). | |
| - Issue #10155: Add IISCGIHandler to wsgiref.handlers to support IIS CGI | |
| environment better, and to correct unicode environment values for WSGI 1.0.1. | |
| - Issue #10281: nntplib now returns None for absent fields in the OVER/XOVER | |
| response, instead of raising an exception. | |
| - wsgiref now implements and validates PEP 3333, rather than an experimental | |
| extension of PEP 333. (Note: earlier versions of Python 3.x may have | |
| incorrectly validated some non-compliant applications as WSGI compliant; if | |
| your app validates with Python <3.2b1+, but not on this version, it is likely | |
| the case that your app was not compliant.) | |
| - Issue #10280: NNTP.nntp_version should reflect the highest version advertised | |
| by the server. | |
| - Issue #10184: Touch directories only once when extracting a tarfile. | |
| - Issue #10199: New package, ``turtledemo`` now contains selected demo scripts | |
| that were formerly found under Demo/turtle. | |
| - Issue #10265: Close file objects explicitly in sunau. Patch by Brian Brazil. | |
| - Issue #10266: uu.decode didn't close in_file explicitly when it was given as a | |
| filename. Patch by Brian Brazil. | |
| - Issue #10110: Queue objects didn't recognize full queues when the maxsize | |
| parameter had been reduced. | |
| - Issue #10160: Speed up operator.attrgetter. Patch by Christos Georgiou. | |
| - logging: Added style option to basicConfig() to allow %, {} or $-formatting. | |
| - Issue #5729: json.dumps() now supports using a string such as '\t' for | |
| pretty-printing multilevel objects. | |
| - Issue #10253: FileIO leaks a file descriptor when trying to open a file for | |
| append that isn't seekable. Patch by Brian Brazil. | |
| - Support context management protocol for file-like objects returned by mailbox | |
| ``get_file()`` methods. | |
| - Issue #10246: uu.encode didn't close file objects explicitly when filenames | |
| were given to it. Patch by Brian Brazil. | |
| - Issue #10198: fix duplicate header written to wave files when writeframes() is | |
| called without data. | |
| - Close file objects in modulefinder in a timely manner. | |
| - Close an io.TextIOWrapper object in email.parser in a timely manner. | |
| - Close a file object in distutils.sysconfig in a timely manner. | |
| - Close a file object in pkgutil in a timely manner. | |
| - Issue #10233: Close file objects in a timely manner in the tarfile module and | |
| its test suite. | |
| - Issue #10093: ResourceWarnings are now issued when files and sockets are | |
| deallocated without explicit closing. These warnings are silenced by default, | |
| except in pydebug mode. | |
| - tarfile.py: Add support for all missing variants of the GNU sparse extensions | |
| and create files with holes when extracting sparse members. | |
| - Issue #10218: Return timeout status from ``Condition.wait`` in threading. | |
| - Issue #7351: Add ``zipfile.BadZipFile`` spelling of the exception name and | |
| deprecate the old name ``zipfile.BadZipfile``. | |
| - Issue #5027: The standard ``xml`` namespace is now understood by | |
| xml.sax.saxutils.XMLGenerator as being bound to | |
| http://www.w3.org/XML/1998/namespace. Patch by Troy J. Farrell. | |
| - Issue #5975: Add csv.unix_dialect class. | |
| - Issue #7761: telnetlib.interact failures on Windows fixed. | |
| - logging: Added style option to Formatter to allow %, {} or $-formatting. | |
| - Issue #5178: Added tempfile.TemporaryDirectory class that can be used as a | |
| context manager. | |
| - Issue #1349106: Generator (and BytesGenerator) flatten method and Header | |
| encode method now support a 'linesep' argument. | |
| - Issue #5639: Add a *server_hostname* argument to ``SSLContext.wrap_socket`` in | |
| order to support the TLS SNI extension. ``HTTPSConnection`` and ``urlopen()`` | |
| also use this argument, so that HTTPS virtual hosts are now supported. | |
| - Issue #10166: Avoid recursion in pstats Stats.add() for many stats items. | |
| - Issue #10163: Skip unreadable registry keys during mimetypes initialization. | |
| - logging: Made StreamHandler terminator configurable. | |
| - logging: Allowed filters to be just callables. | |
| - logging: Added tests for _logRecordClass changes. | |
| - Issue #10092: Properly reset locale in calendar.Locale*Calendar classes. | |
| - logging: Added _logRecordClass, getLogRecordClass, setLogRecordClass to | |
| increase flexibility of LogRecord creation. | |
| - Issue #5117: Case normalization was needed on ntpath.relpath(). Also fixed | |
| root directory issue on posixpath.relpath(). (Ported working fixes from | |
| ntpath.) | |
| - Issue #1343: xml.sax.saxutils.XMLGenerator now has an option | |
| short_empty_elements to direct it to use self-closing tags when appropriate. | |
| - Issue #9807 (part 1): Expose the ABI flags in sys.abiflags. Add --abiflags | |
| switch to python-config for command line access. | |
| - Issue #6098: Don't claim DOM level 3 conformance in minidom. | |
| - Issue #5762: Fix AttributeError raised by ``xml.dom.minidom`` when an empty | |
| XML namespace attribute is encountered. | |
| - Issue #2830: Add the ``html.escape()`` function, which quotes all problematic | |
| characters by default. Deprecate ``cgi.escape()``. | |
| - Issue #9409: Fix the regex to match all kind of filenames, for interactive | |
| debugging in doctests. | |
| - Issue #9183: ``datetime.timezone(datetime.timedelta(0))`` will now return the | |
| same instance as ``datetime.timezone.utc``. | |
| - Issue #7523: Add SOCK_CLOEXEC and SOCK_NONBLOCK to the socket module, where | |
| supported by the system. Patch by Nikita Vetoshkin. | |
| - Issue #10063: file:// scheme will stop accessing remote hosts via ftp | |
| protocol. file:// urls had fallback to access remote hosts via ftp. This was | |
| not correct, change is made to raise a URLError when a remote host is tried to | |
| access via file:// scheme. | |
| - Issue #1710703: Write structures for an empty ZIP archive when a ZipFile is | |
| created in modes 'a' or 'w' and then closed without adding any files. Raise | |
| BadZipfile (rather than IOError) when opening small non-ZIP files. | |
| - Issue #10041: The signature of optional arguments in socket.makefile() didn't | |
| match that of io.open(), and they also didn't get forwarded properly to | |
| TextIOWrapper in text mode. Patch by Kai Zhu. | |
| - Issue #9003: http.client.HTTPSConnection, urllib.request.HTTPSHandler and | |
| urllib.request.urlopen now take optional arguments to allow for server | |
| certificate checking, as recommended in public uses of HTTPS. | |
| - Issue #6612: Fix site and sysconfig to catch os.getcwd() error, eg. if the | |
| current directory was deleted. Patch written by W. Trevor King. | |
| - Issue #3873: Speed up unpickling from file objects that have a peek() method. | |
| - Issue #10075: Add a session_stats() method to SSLContext objects. | |
| - Issue #9948: Fixed problem of losing filename case information. | |
| Extension Modules | |
| ----------------- | |
| - Issue #5109: array.array constructor will now use fast code when | |
| initial data is provided in an array object with correct type. | |
| - Issue #6317: Now winsound.PlaySound only accepts unicode. | |
| - Issue #6317: Now winsound.PlaySound can accept non ascii filename. | |
| - Issue #9377: Use Unicode API for gethostname on Windows. | |
| - Issue #10143: Update "os.pathconf" values. | |
| - Issue #6518: Support context management protocol for ossaudiodev types. | |
| - Issue #678250: Make mmap flush a noop on ACCESS_READ and ACCESS_COPY. | |
| - Issue #9054: Fix a crash occurring when using the pyexpat module with expat | |
| version 2.0.1. | |
| - Issue #5355: Provide mappings from Expat error numbers to string descriptions | |
| and backwards, in order to actually make it possible to analyze error codes | |
| provided by ExpatError. | |
| - The Unicode database was updated to 6.0.0. | |
| C-API | |
| ----- | |
| - Issue #10288: The deprecated family of "char"-handling macros | |
| (ISLOWER()/ISUPPER()/etc) have now been removed: use Py_ISLOWER() etc instead. | |
| - Issue #9778: Hash values are now always the size of pointers. A new Py_hash_t | |
| type has been introduced. | |
| Tools/Demos | |
| ----------- | |
| - Issue #10117: Tools/scripts/reindent.py now accepts source files that use | |
| encoding other than ASCII or UTF-8. Source encoding is preserved when | |
| reindented code is written to a file. | |
| - Issue #7287: Demo/imputil/knee.py was removed. | |
| Tests | |
| ----- | |
| - Issue #3699: Fix test_bigaddrspace and extend it to test bytestrings as well | |
| as unicode strings. Initial patch by Sandro Tosi. | |
| - Issue #10294: Remove dead code form test_unicode_file. | |
| - Issue #10123: Don't use non-ascii filenames in test_doctest tests. Add a new | |
| test specific to unicode (non-ascii name and filename). | |
| Build | |
| ----- | |
| - Issue #10268: Add a --enable-loadable-sqlite-extensions option to configure. | |
| - Issue #8852: Allow the socket module to build on OpenSolaris. | |
| - Drop -OPT:Olimit compiler option. | |
| - Issue #10094: Use versioned .so files on GNU/kfreeBSD and the GNU Hurd. | |
| - Accept Oracle Berkeley DB 5.0 and 5.1 as backend for the dbm extension. | |
| - Issue #7473: avoid link errors when building a framework with a different set | |
| of architectures than the one that is currently installed. | |
| What's New in Python 3.2 Alpha 3? | |
| ================================= | |
| *Release date: 09-Oct-2010* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #10068: Global objects which have reference cycles with their module's | |
| dict are now cleared again. This causes issue #7140 to appear again. | |
| - Issue #9738: Document PyErr_SetString() and PyErr_SetFromErrnoWithFilename() | |
| encodings. | |
| - ast.literal_eval() can now handle negative numbers. It is also a little more | |
| liberal in what it accepts without compromising the safety of the evaluation. | |
| For example, 3j+4 and 3+4+5 are both accepted. | |
| - Issue #10006: type.__abstractmethods__ now raises an AttributeError. As a | |
| result metaclasses can now be ABCs (see #9533). | |
| - Issue #8670: ctypes.c_wchar supports non-BMP characters with 32 bits wchar_t. | |
| - Issue #8670: PyUnicode_AsWideChar() and PyUnicode_AsWideCharString() replace | |
| UTF-16 surrogate pairs by single non-BMP characters for 16 bits Py_UNICODE and | |
| 32 bits wchar_t (eg. Linux in narrow build). | |
| - Issue #10003: Allow handling of SIGBREAK on Windows. Fixes a regression | |
| introduced by issue #9324. | |
| - Issue #9979: Create function PyUnicode_AsWideCharString(). | |
| - Issue #7397: Mention that importlib.import_module() is probably what someone | |
| really wants to be using in __import__'s docstring. | |
| - Issue #8521: Allow CreateKeyEx, OpenKeyEx, and DeleteKeyEx functions of winreg | |
| to use named arguments. | |
| - Issue #9930: Remove bogus subtype check that was causing (e.g.) | |
| float.__rdiv__(2.0, 3) to return NotImplemented instead of the expected 1.5. | |
| - Issue #9808: Implement os.getlogin for Windows. Patch by Jon Anglin. | |
| - Issue #9901: Destroying the GIL in Py_Finalize() can fail if some other | |
| threads are still running. Instead, reinitialize the GIL on a second call to | |
| Py_Initialize(). | |
| - All SyntaxErrors now have a column offset and therefore a caret when the error | |
| is printed. | |
| - Issue #9252: PyImport_Import no longer uses a fromlist hack to return the | |
| module that was imported, but instead gets the module from sys.modules. | |
| - Issue #9213: The range type_items now provides index() and count() methods, to | |
| conform to the Sequence ABC. Patch by Daniel Urban and Daniel Stutzbach. | |
| - Issue #7994: Issue a PendingDeprecationWarning if object.__format__ is called | |
| with a non-empty format string. This is an effort to future-proof user | |
| code. If a derived class does not currently implement __format__ but later | |
| adds its own __format__, it would most likely break user code that had | |
| supplied a format string. This will be changed to a DeprecationWaring in | |
| Python 3.3 and it will be an error in Python 3.4. | |
| - Issue #9828: Destroy the GIL in Py_Finalize(), so that it gets properly | |
| re-created on a subsequent call to Py_Initialize(). The problem (a crash) | |
| wouldn't appear in 3.1 or 2.7 where the GIL's structure is more trivial. | |
| - Issue #9210: Configure option --with-wctype-functions was removed. Using the | |
| functions from the libc caused the methods .upper() and lower() to become | |
| locale aware and created subtly wrong results. | |
| - Issue #9738: PyUnicode_FromFormat() and PyErr_Format() raise an error on a | |
| non-ASCII byte in the format string. | |
| - Issue #4617: Previously it was illegal to delete a name from the local | |
| namespace if it occurs as a free variable in a nested block. This limitation | |
| of the compiler has been lifted, and a new opcode introduced (DELETE_DEREF). | |
| - Issue #9804: ascii() now always represents unicode surrogate pairs as a single | |
| ``\UXXXXXXXX``, regardless of whether the character is printable or not. | |
| Also, the "backslashreplace" error handler now joins surrogate pairs into a | |
| single character on UCS-2 builds. | |
| - Issue #9757: memoryview objects get a release() method to release the | |
| underlying buffer (previously this was only done when deallocating the | |
| memoryview), and gain support for the context management protocol. | |
| - Issue #9797: pystate.c wrongly assumed that zero couldn't be a valid | |
| thread-local storage key. | |
| Library | |
| ------- | |
| - Issue #2236: distutils' mkpath ignored the mode parameter. | |
| - Fix typo in one sdist option (medata-check). | |
| - Issue #9199: Fix incorrect use of distutils.cmd.Command.announce. | |
| - Issue #1718574: Fix options that were supposed to accept arguments but did | |
| not in build_clib. | |
| - Issue #9437: Fix building C extensions with non-default LDFLAGS. | |
| - Issue #4661: email can now parse bytes input and generate either converted | |
| 7bit output or bytes output. Email version bumped to 5.1.0. | |
| - Issue #1589: Add ssl.match_hostname(), to help implement server identity | |
| verification for higher-level protocols. | |
| - Issue #9759: GzipFile now raises ValueError when an operation is attempted | |
| after the file is closed. Patch by Jeffrey Finkelstein. | |
| - Issue #9042: Fix interaction of custom translation classes and caching in | |
| gettext. | |
| - Issue #6706: asyncore.dispatcher now provides a handle_accepted() method | |
| returning a (sock, addr) pair which is called when a connection has been | |
| established with a new remote endpoint. This is supposed to be used as a | |
| replacement for old handle_accept() and avoids the user to call accept() | |
| directly. | |
| - Issue #9065: tarfile no longer uses "root" as the default for the uname and | |
| gname field. | |
| - Issue #8980: Fixed a failure in distutils.command check that was shadowed by | |
| an environment that does not have docutils. Patch by Arfrever. | |
| - Issue #1050268: parseaddr now correctly quotes double quote and backslash | |
| characters that appear inside quoted strings in email addresses. | |
| - Issue #10004: quoprimime no longer generates a traceback when confronted with | |
| invalid characters after '=' in a Q-encoded word. | |
| - Issue #1491: BaseHTTPServer nows send a ``100 Continue`` response before | |
| sending a 200 OK for the Expect: 100-continue request header. | |
| - Issue #9360: Cleanup and improvements to the nntplib module. The API now | |
| conforms to the philosophy of bytes and unicode separation in Python 3. A | |
| test suite has also been added. | |
| - Issue #9962: GzipFile now has the peek() method. | |
| - Issue #9090: When a socket with a timeout fails with EWOULDBLOCK or EAGAIN, | |
| retry the select() loop instead of bailing out. This is because select() can | |
| incorrectly report a socket as ready for reading (for example, if it received | |
| some data with an invalid checksum). | |
| - Issue #3612: Added new types to ctypes.wintypes. (CHAR and pointers) | |
| - Issue #9950: Fix socket.sendall() crash or misbehaviour when a signal is | |
| received. Now sendall() properly calls signal handlers if necessary, and | |
| retries sending if these returned successfully, including on sockets with a | |
| timeout. | |
| - Issue #9947: logging: Fixed locking bug in stopListening. | |
| - Issue #9945: logging: Fixed locking bugs in addHandler/removeHandler. | |
| - Issue #9936: Fixed executable lines' search in the trace module. | |
| - Issue #9790: Rework imports necessary for samefile and sameopenfile | |
| in ntpath. | |
| - Issue #9928: Properly initialize the types exported by the bz2 module. | |
| - Issue #1675951: Allow GzipFile to work with unseekable file objects. Patch by | |
| Florian Festi. | |
| - Logging: Added QueueListener class to facilitate logging usage for | |
| performance-critical threads. | |
| - Issue #9916: Add some missing errno symbols. | |
| - Issue #9877: Expose sysconfig.get_makefile_filename() | |
| - logging: Added hasHandlers() method to Logger and LoggerAdapter. | |
| - Issue #9908: Fix os.stat() on bytes paths under Windows 7. | |
| - Issue #2643: msync() is not called anymore when deallocating an open mmap | |
| object, only munmap(). | |
| - logging: Changed LoggerAdapter implementation internally, to make it easier to | |
| subclass in a useful way. | |
| - logging: hasHandlers method was added to Logger, and isEnabledFor, | |
| getEffectiveLevel, hasHandlers and setLevel were added to LoggerAdapter. | |
| LoggerAdapter was introduced into the unit tests for logging. | |
| - Issue #1686: Fix string.Template when overriding the pattern attribute. | |
| - Issue #9854: SocketIO objects now observe the RawIOBase interface in | |
| non-blocking mode: they return None when an operation would block (instead of | |
| raising an exception). | |
| - Issue #1730136: Fix the comparison between a tk.font.Font and an object of | |
| another kind. | |
| - Issue #9441: logging has better coverage for rotating file handlers. | |
| - Issue #9865: collections.OrderedDict now has a __sizeof__ method. | |
| - Issue #9854: The default read() implementation in io.RawIOBase now handles | |
| non-blocking readinto() returning None correctly. | |
| - Issue #1552: socket.socketpair() now returns regular socket.socket objects | |
| supporting the whole socket API (rather than the "raw" _socket.socket | |
| objects). | |
| - Issue #9853: Fix the signature of SSLSocket.recvfrom() and SSLSocket.sendto() | |
| to match the corresponding socket methods. | |
| - Issue #9840: Added a decorator to reprlib for wrapping __repr__ methods to make | |
| them handle recursive calls within the same thread. | |
| - logging: Enhanced HTTPHandler with secure and credentials initializers. | |
| - Issue #767645: Set os.path.supports_unicode_filenames to True on Mac OS X. | |
| - Issue #9837: The read() method of ZipExtFile objects (as returned by | |
| ZipFile.open()) could return more bytes than requested. | |
| - Issue #9826: OrderedDict.__repr__ can now handle self-referential values: | |
| d['x'] = d. | |
| - Issue #9825: Using __del__ in the definition of collections.OrderedDict made | |
| it possible for the user to create self-referencing ordered dictionaries which | |
| become permanently uncollectable GC garbage. Reinstated the Python 3.1 | |
| approach of using weakref proxies so that reference cycles never get created | |
| in the first place. | |
| - Issue #9579, #9580: Fix os.confstr() for value longer than 255 bytes and | |
| encode the value with filesystem encoding and surrogateescape (instead of | |
| utf-8 in strict mode) . Patch written by David Watson. | |
| - Issue #9632: Remove sys.setfilesystemencoding() function: use PYTHONFSENCODING | |
| environment variable to set the filesystem encoding at Python startup. | |
| sys.setfilesystemencoding() creates inconsistencies because it is unable to | |
| re-encode all filenames in all objects. | |
| - Issue #9410: Various optimizations to the pickle module, leading to speedups | |
| up to 4x (depending on the benchmark). Mostly ported from Unladen Swallow; | |
| initial patch by Alexandre Vassalotti. | |
| - The pprint module now supports printing OrderedDicts in their given order | |
| (formerly, it would sort the keys). | |
| - Logging: Added QueueHandler class to facilitate logging usage with | |
| multiprocessing. | |
| - Issue #9707: Rewritten reference implementation of threading.local which is | |
| friendlier towards reference cycles. This change is not normally visible | |
| since an optimized C implementation (_thread._local) is used instead. | |
| - Issue #6394: os.getppid() is now supported on Windows. Note that it will | |
| still return the id of the parent process after it has exited. This process | |
| id may even have been reused by another unrelated process. | |
| - Issue #9792: In case of connection failure, socket.create_connection() would | |
| swallow the exception and raise a new one, making it impossible to fetch the | |
| original errno, or to filter timeout errors. Now the original error is | |
| re-raised. | |
| - Issue #9758: When fcntl.ioctl() was called with mutable_flag set to True, and | |
| the passed buffer was exactly 1024 bytes long, the buffer wouldn't be updated | |
| back after the system call. Original patch by Brian Brazil. | |
| - Updates to the random module: | |
| * Document which parts of the module are guaranteed to stay the same across | |
| versions and which parts are subject to change. | |
| * Update the seed() method to use all of the bits in a string instead of just | |
| the hash value. This makes better use of the seed value and assures the | |
| seeding is platform independent. Issue #7889. | |
| * Improved the random()-->integer algorithm used in choice(), shuffle(), | |
| sample(), randrange(), and randint(). Formerly, it used int(n*random()) | |
| which has a slight bias whenever n is not a power of two. Issue #9025. | |
| * Improved documentation of arguments to randrange(). Issue #9379. | |
| - collections.OrderedDict now supports a new method for repositioning keys to | |
| either end. | |
| - Issue #9754: Similarly to assertRaises and assertRaisesRegexp, unittest test | |
| cases now also have assertWarns and assertWarnsRegexp methods to check that a | |
| given warning type was triggered by the code under test. | |
| - Issue #5506: BytesIO objects now have a getbuffer() method exporting a view of | |
| their contents without duplicating them. The view is both readable and | |
| writable. | |
| - Issue #7566: Implement os.path.sameopenfile for Windows. | |
| - Issue #9293: I/O streams now raise ``io.UnsupportedOperation`` when an | |
| unsupported operation is attempted (for example, writing to a file open only | |
| for reading). | |
| - hashlib has two new constant attributes: algorithms_guaranteed and | |
| algorithms_available that respectively list the names of hash algorithms | |
| guaranteed to exist in all Python implementations and the names of hash | |
| algorithms available in the current process. | |
| - A new package ``concurrent.futures`` as defined by PEP 3148. | |
| C-API | |
| ----- | |
| - Add PyErr_SyntaxLocationEx, which supports passing a column offset. | |
| - Issue #9834: Don't segfault in PySequence_GetSlice, PySequence_SetSlice, or | |
| PySequence_DelSlice when the object doesn't have any mapping operations | |
| defined. | |
| Tools/Demos | |
| ----------- | |
| - Issue #9188: The gdb extension now handles correctly narrow (UCS2) as well as | |
| wide (UCS4) unicode builds for both the host interpreter (embedded inside gdb) | |
| and the interpreter under test. | |
| Tests | |
| ----- | |
| - Issue #9308: Added tests for importing encoded modules that do not | |
| depend on specific stdlib modules being encoded in a certain way. | |
| - Issue #1051: Add a script (Lib/test/make_ssl_certs.py) to generate the custom | |
| certificate and private key files used by SSL-related certs. | |
| - Issue #9978: Wait until subprocess completes initialization. (Win32KillTests | |
| in test_os) | |
| - Issue #7110: regrtest now sends test failure reports and single-failure | |
| tracebacks to stderr rather than stdout. | |
| - Issue #9628: fix runtests.sh -x option so more than one test can be excluded. | |
| - Issue #9899: Fix test_tkinter.test_font on various platforms. Patch by Ned | |
| Deily. | |
| - Issue #9894: Do not hardcode ENOENT in test_subprocess. | |
| - Issue #9315: Added tests for the trace module. Patch by Eli Bendersky. | |
| - Issue #9323: Make test.regrtest.__file__ absolute, this was not always the | |
| case when running profile or trace, for example. | |
| - Issue #9568: Fix test_urllib2_localnet on OS X 10.3. | |
| Build | |
| ----- | |
| - Issue #10062: Allow building on platforms which do not have sem_timedwait. | |
| - Issue #10054: Some platforms provide uintptr_t in inttypes.h. Patch by Akira | |
| Kitada. | |
| - Issue #10055: Make json C89-compliant in UCS4 mode. | |
| - Issue #9552: Avoid unnecessary rebuild of OpenSSL. (Windows) | |
| - Issue #1633863: Don't ignore $CC under AIX. | |
| - Issue #9810: Compile bzip2 source files in Python's project file directly. It | |
| used to be built with bzip2's makefile. | |
| - Issue #9848: Stopping trying to build _weakref in setup.py as it is a built-in | |
| module. | |
| - Issue #9806: python-config now has an ``--extension-suffix`` option that | |
| outputs the suffix for dynamic libraries including the ABI version name | |
| defined by PEP 3149. | |
| - Issue #941346: Improve the build process under AIX and allow Python to be | |
| built as a shared library. Patch by Sébastien Sablé. | |
| - Issue #4026: Make the fcntl extension build under AIX. Patch by Sébastien | |
| Sablé. | |
| - Issue #9701: The MacOSX installer can patch the shell profile to ensure that | |
| the "bin" directory inside the framework is on the shell's search path. This | |
| feature now also supports the ZSH shell. | |
| What's New in Python 3.2 Alpha 2? | |
| ================================= | |
| *Release date: 05-Sep-2010* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #9225: Remove the ROT_FOUR and DUP_TOPX opcode, the latter replaced by | |
| the new (and simpler) DUP_TOP_TWO. Performance isn't changed, but our | |
| bytecode is a bit simplified. Patch by Demur Rumed. | |
| - Issue #9766: Rename poorly named variables exposed by _warnings to prevent | |
| confusion with the proper variables names from 'warnings' itself. | |
| - Issue #9212: dict_keys and dict_items now provide the isdisjoint() method, to | |
| conform to the Set ABC. Patch by Daniel Urban. | |
| - Issue #9737: Fix a crash when trying to delete a slice or an item from a | |
| memoryview object. | |
| - Issue #9549: sys.setdefaultencoding() and PyUnicode_SetDefaultEncoding() are | |
| now removed, since their effect was inexistent in 3.x (the default encoding is | |
| hardcoded to utf-8 and cannot be changed). | |
| - Issue #7415: PyUnicode_FromEncodedObject() now uses the new buffer API | |
| properly. Patch by Stefan Behnel. | |
| - Issue #5553: The Py_LOCAL_INLINE macro now results in inlining on most | |
| platforms. Previously, it inlined only when using Microsoft Visual C. | |
| - Issue #9712: Fix tokenize on identifiers that start with non-ascii names. | |
| - Issue #9688: __basicsize__ and __itemsize__ must be accessed as Py_ssize_t. | |
| - Issue #9684: Added a definition for SIZEOF_WCHAR_T to PC/pyconfig.h, to match | |
| the pyconfig.h generated by configure on other systems. | |
| - Issue #9666: Only catch AttributeError in hasattr(). All other exceptions that | |
| occur during attribute lookup are now propagated to the caller. | |
| - Issue #8622: Add PYTHONFSENCODING environment variable to override the | |
| filesystem encoding. | |
| - Issue #5127: The C functions that access the Unicode Database now accept and | |
| return characters from the full Unicode range, even on narrow unicode builds | |
| (Py_UNICODE_TOLOWER, Py_UNICODE_ISDECIMAL, and others). A visible difference | |
| in Python is that unicodedata.numeric() now returns the correct value for | |
| large code points, and repr() may consider more characters as printable. | |
| - Issue #9425: Create PyModule_GetFilenameObject() function to get the filename | |
| as a unicode object, instead of a byte string. Function needed to support | |
| unencodable filenames. Deprecate PyModule_GetFilename() in favor on the new | |
| function. | |
| - Issue #8063: Call _PyGILState_Init() earlier in Py_InitializeEx(). | |
| - Issue #9612: The set object is now 64-bit clean under Windows. | |
| - Issue #8202: sys.argv[0] is now set to '-m' instead of '-c' when searching for | |
| the module file to be executed with the -m command line option. | |
| - Issue #9599: Create PySys_FormatStdout() and PySys_FormatStderr() functions to | |
| write a message formatted by PyUnicode_FromFormatV() to sys.stdout and | |
| sys.stderr. | |
| - Issue #9542: Create PyUnicode_FSDecoder() function, a ParseTuple converter: | |
| decode bytes objects to unicode using PyUnicode_DecodeFSDefaultAndSize(); str | |
| objects are output as-is. | |
| - Issue #9203: Computed gotos are now enabled by default on supported compilers | |
| (which are detected by the configure script). They can still be disable | |
| selectively by specifying --without-computed-gotos. | |
| - Issue #9425: Create PyErr_WarnFormat() function, similar to PyErr_WarnEx() but | |
| use PyUnicode_FromFormatV() to format the warning message. | |
| - Issue #8530: Prevent stringlib fastsearch from reading beyond the front of an | |
| array. | |
| - Issue #5319: Print an error if flushing stdout fails at interpreter shutdown. | |
| - Issue #9337: The str() of a float or complex number is now identical to its | |
| repr(). | |
| - Issue #9416: Fix some issues with complex formatting where the output with no | |
| type specifier failed to match the str output: | |
| - format(complex(-0.0, 2.0), '-') omitted the real part from the output, | |
| - format(complex(0.0, 2.0), '-') included a sign and parentheses. | |
| Extension Modules | |
| ----------------- | |
| - Issue #8013: time.asctime and time.ctime no longer call system | |
| asctime and ctime functions. The year range for time.asctime is now | |
| 1900 through maxint. The range for time.ctime is the same as for | |
| time.localtime. The string produced by these functions is longer | |
| than 24 characters when year is greater than 9999. | |
| - Issue #6608: time.asctime is now checking struct tm fields its input | |
| before passing it to the system asctime. Patch by MunSic Jeong. | |
| - Issue #8734: Avoid crash in msvcrt.get_osfhandle() when an invalid file | |
| descriptor is provided. Patch by Pascal Chambon. | |
| - Issue #7736: Release the GIL around calls to opendir() and closedir() in the | |
| posix module. Patch by Marcin Bachry. | |
| - Issue #4835: make PyLong_FromSocket_t() and PyLong_AsSocket_t() private to the | |
| socket module, and fix the width of socket descriptors to be correctly | |
| detected under 64-bit Windows. | |
| - Issue #1027206: Support IDNA in gethostbyname, gethostbyname_ex, getaddrinfo | |
| and gethostbyaddr. getnameinfo is now restricted to numeric addresses as | |
| input. | |
| - Issue #9214: Set operations on a KeysView or ItemsView in collections now | |
| correctly return a set. Patch by Eli Bendersky. | |
| - Issue #5737: Add Solaris-specific mnemonics in the errno module. Patch by | |
| Matthew Ahrens. | |
| - Restore GIL in nis_cat in case of error. Decode NIS data to fs encoding, using | |
| the surrogate error handler. | |
| - Issue #665761: ``functools.reduce()`` will no longer mask exceptions other | |
| than ``TypeError`` raised by the iterator argument. | |
| - Issue #9570: Use PEP 383 decoding in os.mknod and os.mkfifo. | |
| - Issue #6915: Under Windows, os.listdir() didn't release the Global Interpreter | |
| Lock around all system calls. Original patch by Ryan Kelly. | |
| - Issue #8524: Add a detach() method to socket objects, so as to put the socket | |
| into the closed state without closing the underlying file descriptor. | |
| - Issue #477863: Emit a ResourceWarning at shutdown if gc.garbage is not empty. | |
| - Issue #6869: Fix a refcount problem in the _ctypes extension. | |
| - Issue #5504: ctypes should now work with systems where mmap can't be | |
| PROT_WRITE and PROT_EXEC. | |
| - Issue #9507: Named tuple repr will now automatically display the right name in | |
| a tuple subclass. | |
| - Issue #9324: Add parameter validation to signal.signal on Windows in order to | |
| prevent crashes. | |
| - Issue #9526: Remove some outdated (int) casts that were preventing the array | |
| module from working correctly with arrays of more than 2**31 elements. | |
| - Fix memory leak in ssl._ssl._test_decode_cert. | |
| - Issue #8065: Fix memory leak in readline module (from failure to free the | |
| result of history_get_history_state()). | |
| - Issue #9450: Fix memory leak in readline.replace_history_item and | |
| readline.remove_history_item for readline version >= 5.0. | |
| - Issue #8105: Validate file descriptor passed to mmap.mmap on Windows. | |
| - Issue #8046: Add context management protocol support and .closed property to mmap | |
| objects. | |
| Library | |
| ------- | |
| - Issue #7451: Improve decoding performance of JSON objects, and reduce the | |
| memory consumption of said decoded objects when they use the same strings as | |
| keys. | |
| - Issue #1100562: Fix deep-copying of objects derived from the list and dict | |
| types. Patch by Michele Orrù and Björn Lindqvist. | |
| - Issue #9753: Fixed socket.dup, which did not always work correctly on Windows. | |
| - Issue #9421: Made the get<type> methods consistently accept the vars and | |
| default arguments on all parser classes. | |
| - Issue #7005: Fixed output of None values for RawConfigParser.write and | |
| ConfigParser.write. | |
| - Issue #8990: array.fromstring() and array.tostring() get renamed to | |
| frombytes() and tobytes(), respectively, to avoid confusion. Furthermore, | |
| array.frombytes(), array.extend() as well as the array.array() constructor now | |
| accept bytearray objects. Patch by Thomas Jollans. | |
| - Issue #808164: Fixed socket.close to avoid references to globals, to avoid | |
| issues when socket.close is called from a __del__ method. | |
| - Issue #9706: ssl module provides a better error handling in various | |
| circumstances. | |
| - Issue #1868: Eliminate subtle timing issues in thread-local objects by getting | |
| rid of the cached copy of thread-local attribute dictionary. | |
| - Issue #1512791: In setframerate() in the wave module, non-integral frame rates | |
| are rounded to the nearest integer. | |
| - Issue #8797: urllib2 does a retry for Basic Authentication failure instead of | |
| falling into recursion. | |
| - Issue #1194222: email.utils.parsedate now returns RFC2822 compliant four | |
| character years even if the message contains RFC822 two character years. | |
| - Issue #8750: Fixed MutableSet's methods to correctly handle reflexive | |
| operations on its self, namely x -= x and x ^= x. | |
| - Issue #9129: smtpd.py is vulnerable to DoS attacks deriving from missing error | |
| handling when accepting a new connection. | |
| - Issue #9601: ftplib now provides a workaround for non-compliant | |
| implementations such as IIS shipped with Windows server 2003 returning invalid | |
| response codes for MKD and PWD commands. | |
| - Issue #658749: asyncore's connect() method now correctly interprets winsock | |
| errors. | |
| - Issue #9501: Fixed logging regressions in cleanup code. | |
| - Fix functools.total_ordering() to skip methods inherited from object. | |
| - Issue #9572: Importlib should not raise an exception if a directory it thought | |
| it needed to create was done concurrently by another process. | |
| - Issue #9617: Signals received during a low-level write operation aren't | |
| ignored by the buffered IO layer anymore. | |
| - Issue #843590: Make "macintosh" an alias to the "mac_roman" encoding. | |
| - Create os.fsdecode(): decode from the filesystem encoding with surrogateescape | |
| error handler, or strict error handler on Windows. | |
| - Issue #3488: Provide convenient shorthand functions ``gzip.compress`` and | |
| ``gzip.decompress``. Original patch by Anand B. Pillai. | |
| - Issue #8807: poplib.POP3_SSL class now accepts a context parameter, which is a | |
| ssl.SSLContext object allowing bundling SSL configuration options, | |
| certificates and private keys into a single (potentially long-lived) | |
| structure. | |
| - Issue #8866: parameters passed to socket.getaddrinfo can now be specified as | |
| single keyword arguments. | |
| - Address XXX comment in dis.py by having inspect.py prefer to reuse the dis.py | |
| compiler flag values over defining its own. | |
| - Issue #9147: Added dis.code_info() which is similar to show_code() but returns | |
| formatted code information in a string rather than displaying on screen. | |
| - Issue #9567: functools.update_wrapper now adds a __wrapped__ attribute | |
| pointing to the original callable. | |
| - Issue #3445: functools.update_wrapper now tolerates missing attributes on | |
| wrapped callables. | |
| - Issue #5867: Add abc.abstractclassmethod and abc.abstractstaticmethod. | |
| - Issue #9605: posix.getlogin() decodes the username with file filesystem | |
| encoding and surrogateescape error handler. Patch written by David Watson. | |
| - Issue #9604: posix.initgroups() encodes the username using the filesystem | |
| encoding and surrogateescape error handler. Patch written by David Watson. | |
| - Issue #9603: posix.ttyname() and posix.ctermid() decode the terminal name | |
| using the filesystem encoding and surrogateescape error handler. Patch written | |
| by David Watson. | |
| - Issue #7647: The posix module now has the ST_RDONLY and ST_NOSUID constants, | |
| for use with the statvfs() function. Patch by Adam Jackson. | |
| - Issue #8688: MANIFEST files created by distutils now include a magic comment | |
| indicating they are generated. Manually maintained MANIFESTs without this | |
| marker will not be overwritten or removed. | |
| - Issue #7467: when reading a file from a ZIP archive, its CRC is checked and a | |
| BadZipfile error is raised if it doesn't match (as used to be the case in | |
| Python 2.5 and earlier). | |
| - Issue #9550: a BufferedReader could issue an additional read when the original | |
| read request had been satisfied, which could block indefinitely when the | |
| underlying raw IO channel was e.g. a socket. Report and original patch by | |
| Jason V. Miller. | |
| - Issue #3757: thread-local objects now support cyclic garbage collection. | |
| Thread-local objects involved in reference cycles will be deallocated timely | |
| by the cyclic GC, even if the underlying thread is still running. | |
| - Issue #9452: Add read_file, read_string, and read_dict to the configparser | |
| API; new source attribute to exceptions. | |
| - Issue #6231: Fix xml.etree.ElementInclude to include the tail of the current | |
| node. | |
| - Issue #8047: Fix the xml.etree serializer to return bytes by default. Use | |
| ``encoding="unicode"`` to generate a Unicode string. | |
| - Issue #8280: urllib2's Request method will remove fragments in the url. This | |
| is how it is supposed to work, wget and curl do the same. Previous behavior | |
| was wrong. | |
| - Issue #6683: For SMTP logins we now try all authentication methods advertised | |
| by the server. Many servers are buggy and advertise authentication methods | |
| they do not support in reality. | |
| - Issue #8814: function annotations (the ``__annotations__`` attribute) are now | |
| included in the set of attributes copied by default by functools.wraps and | |
| functools.update_wrapper. Patch by Terrence Cole. | |
| - Issue #2944: asyncore doesn't handle connection refused correctly. | |
| - Issue #4184: Private attributes on smtpd.SMTPChannel made public and deprecate | |
| the private attributes. Add tests for smtpd module. | |
| - Issue #3196: email header decoding is now forgiving if an RFC2047 encoded word | |
| encoded in base64 is lacking padding. | |
| - Issue #9444: Argparse now uses the first element of prefix_chars as the option | |
| character for the added 'h/help' option if prefix_chars does not contain a | |
| '-', instead of raising an error. | |
| - Issue #7372: Fix pstats regression when stripping paths from profile data | |
| generated with the profile module. | |
| - Issue #9428: Fix running scripts with the profile/cProfile modules from the | |
| command line. | |
| - Issue #7781: Fix restricting stats by entry counts in the pstats interactive | |
| browser. | |
| - Issue #9209: Do not crash in the pstats interactive browser on invalid regular | |
| expressions. | |
| - Update collections.OrderedDict to match the implementation in Py2.7 (based on | |
| lists instead of weakly referenced Link objects). | |
| - Issue #8397: Raise an error when attempting to mix iteration and regular reads | |
| on a BZ2File object, rather than returning incorrect results. | |
| - Issue #9448: Fix a leak of OS resources (mutexes or semaphores) when | |
| re-initializing a buffered IO object by calling its ``__init__`` method. | |
| - Issue #1713: Fix os.path.ismount(), which returned true for symbolic links | |
| across devices. | |
| - Issue #8826: Properly load old-style "expires" attribute in http.cookies. | |
| - Issue #1690103: Fix initial namespace for code run with trace.main(). | |
| - Issue #7395: Fix tracebacks in pstats interactive browser. | |
| - Issue #8230: Fix Lib/test/sortperf.py. | |
| - Issue #8620: when a cmd.Cmd() is fed input that reaches EOF without a final | |
| newline, it no longer truncates the last character of the last command line. | |
| - Issue #5146: Handle UID THREAD command correctly in imaplib. | |
| - Issue #5147: Fix the header generated for cookie files written by | |
| http.cookiejar.MozillaCookieJar. | |
| - Issue #8198: In pydoc, output all help text to the correct stream when | |
| sys.stdout is reassigned. | |
| - Issue #7909: Do not touch paths with the special prefixes ``\\.\`` or ``\\?\`` | |
| in ntpath.normpath(). | |
| - Issue #1286: Allow using fileinput.FileInput as a context manager. | |
| - Add lru_cache() decorator to the functools module. | |
| Tools/Demos | |
| ----------- | |
| - Fix ``Tools/scripts/checkpyc.py`` after PEP 3147. | |
| - Issue #8867: Fix ``Tools/scripts/serve.py`` to work with files containing | |
| non-ASCII content. | |
| Tests | |
| ----- | |
| - Issue #9601: Provide a test case for ftplib.parse257. | |
| - Issue #8857: Provide a test case for socket.getaddrinfo. | |
| - Issue #7564: Skip test_ioctl if another process is attached to /dev/tty. | |
| - Issue #8433: Fix test_curses failure with newer versions of ncurses. | |
| - Issue #9496: Provide a test suite for the rlcompleter module. Patch by | |
| Michele Orrù. | |
| - Issue #8687: provide a test suite for sched.py module. | |
| Build | |
| ----- | |
| - Issue #1303434: Generate ZIP file containing all PDBs. | |
| - Issue #9193: PEP 3149 is accepted. | |
| - Issue #3101: Helper functions _add_one_to_index_C() and _add_one_to_index_F() | |
| become _Py_add_one_to_index_C() and _Py_add_one_to_index_F(), respectively. | |
| - Issue #9700: define HAVE_BROKEN_POSIX_SEMAPHORES under AIX 6.x. Patch by | |
| Sébastien Sablé. | |
| - Don't run pgen twice when using make -j. | |
| What's New in Python 3.2 Alpha 1? | |
| ================================= | |
| *Release date: 01-Aug-2010* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #8991: convertbuffer() rejects discontiguous buffers. | |
| - Issue #7616: Fix copying of overlapping memoryview slices with the Intel | |
| compiler. | |
| - Issue #8413: structsequence now subclasses tuple. | |
| - Issue #8271: during the decoding of an invalid UTF-8 byte sequence, only the | |
| start byte and the continuation byte(s) are now considered invalid, instead of | |
| the number of bytes specified by the start byte. E.g.: | |
| '\xf1\x80AB'.decode('utf-8', 'replace') now returns u'\ufffdAB' and replaces | |
| with U+FFFD only the start byte ('\xf1') and the continuation byte ('\x80') | |
| even if '\xf1' is the start byte of a 4-bytes sequence. Previous versions | |
| returned a single u'\ufffd'. | |
| - Issue #9011: A negated imaginary literal (e.g., "-7j") now has real part -0.0 | |
| rather than 0.0. So "-7j" is now exactly equivalent to "-(7j)". | |
| - Be more specific in error messages about positional arguments. | |
| - Issue #8949: "z" format of PyArg_Parse*() functions doesn't accept bytes | |
| objects, as described in the documentation. | |
| - Issue #6543: Write the traceback in the terminal encoding instead of utf-8. | |
| Fix the encoding of the modules filename. Patch written by Amaury Forgeot | |
| d'Arc. | |
| - Issue #9011: Remove buggy and unnecessary (in 3.x) ST->AST compilation code | |
| dealing with unary minus applied to a constant. The removed code was mutating | |
| the ST, causing a second compilation to fail. | |
| - Issue #850997: mbcs encoding (Windows only) handles errors argument: strict | |
| mode raises unicode errors. The encoder only supports "strict" and "replace" | |
| error handlers, the decoder only supports "strict" and "ignore" error | |
| handlers. Patch written by Mark Hammond. | |
| - Issue #8850: Remove "w" and "w#" formats from PyArg_Parse*() functions, use | |
| "w*" format instead. Add tests for "w*" format. | |
| - Issue #8592: PyArg_Parse*() functions raise a TypeError for "y", "u" and "Z" | |
| formats if the string contains a null byte/character. Write unit tests for | |
| string formats. | |
| - Issue #7490: To facilitate sharing of doctests between 2.x and 3.x test | |
| suites, the IGNORE_EXCEPTION_DETAIL directive now also ignores the module | |
| location of the raised exception. | |
| - Issue #8969: On Windows, use mbcs codec in strict mode to encode and decode | |
| filenames and enable os.fsencode(). | |
| - Issue #9058: Remove assertions about INT_MAX in UnicodeDecodeError. | |
| - Issue #8941: Decoding big endian UTF-32 data in UCS-2 builds could crash the | |
| interpreter with characters outside the Basic Multilingual Plane (higher than | |
| 0x10000). | |
| - Issue #8950: (See also issue #5080). Py_ArgParse*() functions now raise | |
| TypeError instead of giving a DeprecationWarning when a float is parsed using | |
| the 'L' code (for long long). (All other integer codes already raise | |
| TypeError in this case.) | |
| - Issue #8922: Normalize the encoding name in PyUnicode_AsEncodedString() to | |
| enable shortcuts for upper case encoding name. Add also a shortcut for | |
| "iso-8859-1" in PyUnicode_AsEncodedString() and PyUnicode_Decode(). | |
| - Issue #8838: Remove codecs.charbuffer_encode() function. The buffer protocol | |
| doesn't support "char buffer" anymore in Python 3. | |
| - Issue #8339: Remove "t#" format of PyArg_Parse*() functions, use "s#" or "s*" | |
| instead. codecs.charbuffer_encode() now accepts modifiable buffer objects | |
| like bytearray. | |
| - Issue #8837: Remove "O?" format of PyArg_Parse*() functions. The format is no | |
| used anymore and it was never documented. | |
| - In str.format(), raise a ValueError when indexes to arguments are too large. | |
| - Issue #2844: Make int('42', n) consistently raise ValueError for invalid | |
| integers n (including n = -909). | |
| - Issue #8188: Introduce a new scheme for computing hashes of numbers (instances | |
| of int, float, complex, decimal.Decimal and fractions.Fraction) that makes it | |
| easy to maintain the invariant that hash(x) == hash(y) whenever x and y have | |
| equal value. | |
| - Issue #8748: Fix two issues with comparisons between complex and integer | |
| objects. (1) The comparison could incorrectly return True in some cases | |
| (2**53+1 == complex(2**53) == 2**53), breaking transitivity of equality. | |
| (2) The comparison raised an OverflowError for large integers, leading to | |
| unpredictable exceptions when combining integers and complex objects in sets | |
| or dicts. | |
| - Issue #8766: Initialize _warnings module before importing the first module. | |
| Fix a crash if an empty directory called "encodings" exists in sys.path. | |
| - Issue #8589: Decode PYTHONWARNINGS environment variable with the file system | |
| encoding and surrogateescape error handler instead of the locale encoding to | |
| be consistent with os.environ. Add PySys_AddWarnOptionUnicode() function. | |
| - PyObject_Dump() encodes unicode objects to utf8 with backslashreplace (instead | |
| of strict) error handler to escape surrogates. | |
| - Issue #8715: Create PyUnicode_EncodeFSDefault() function: Encode a Unicode | |
| object to Py_FileSystemDefaultEncoding with the "surrogateescape" error | |
| handler, and return bytes. If Py_FileSystemDefaultEncoding is not set, fall | |
| back to UTF-8. | |
| - Enable shortcuts for common encodings in PyUnicode_AsEncodedString() for any | |
| error handler, not only the default error handler (strict). | |
| - Issue #8610: Load file system codec at startup, and display a fatal error on | |
| failure. Set the file system encoding to utf-8 (instead of None) if getting | |
| the locale encoding failed, or if nl_langinfo(CODESET) function is missing. | |
| - PyFile_FromFd() uses PyUnicode_DecodeFSDefault() instead of | |
| PyUnicode_FromString() to support surrogates in the filename and use the right | |
| encoding. | |
| - Issue #7507: Quote "!" in pipes.quote(); it is special to some shells. | |
| - PyUnicode_DecodeFSDefaultAndSize() uses surrogateescape error handler. | |
| - Issue #8419: Prevent the dict constructor from accepting non-string keyword | |
| arguments. | |
| - Issue #8124: PySys_WriteStdout() and PySys_WriteStderr() don't execute | |
| indirectly Python signal handlers anymore because mywrite() ignores exceptions | |
| (KeyboardInterrupt). | |
| - Issue #8092: Fix PyUnicode_EncodeUTF8() to support error handler producing | |
| unicode string (eg. backslashreplace). | |
| - Issue #8485: PyUnicode_FSConverter() doesn't accept byteearray objects | |
| anymore, you have to convert your bytearray filenames to bytes. | |
| - Issue #7332: Remove the 16KB stack-based buffer in | |
| PyMarshal_ReadLastObjectFromFile, which doesn't bring any noticeable benefit | |
| compared to the dynamic memory allocation fallback. Patch by Charles-François | |
| Natali. | |
| - Issue #8417: Raise an OverflowError when an integer larger than sys.maxsize is | |
| passed to bytes or bytearray. | |
| - Issue #7301: Add environment variable $PYTHONWARNINGS. | |
| - Issue #8329: Don't return the same lists from select.select when no fds are | |
| changed. | |
| - Issue #8259: 1L << (2**31) no longer produces an 'outrageous shift error' on | |
| 64-bit machines. The shift count for either left or right shift is permitted | |
| to be up to sys.maxsize. | |
| - Ensure that tokenization of identifiers is not affected by locale. | |
| - Issue #1222585: Added LDCXXSHARED for C++ support. Patch by Arfrever. | |
| - Raise a TypeError when trying to delete a T_STRING_INPLACE struct member. | |
| - Issue #8211: Save/restore CFLAGS around AC_PROG_CC in configure.in, in case it | |
| is set. | |
| - Issue #8226: sys.setfilesystemencoding() raises a LookupError if the encoding | |
| is unknown. | |
| - Issue #1583863: A str subclass can now override the __str__ method. | |
| - Issue #8014: Setting a T_UINT or T_PYSSIZET attribute of an object with | |
| PyMemberDefs could produce an internal error; raise TypeError instead. | |
| - Issue #7845: Rich comparison methods on the complex type now return | |
| NotImplemented rather than raising a TypeError when comparing with an | |
| incompatible type; this allows user-defined classes to implement their own | |
| comparisons with complex. | |
| - Issue #3137: Don't ignore errors at startup, especially a keyboard interrupt | |
| (SIGINT). If an error occurs while importing the site module, the error is | |
| printed and Python exits. Initialize the GIL before importing the site module. | |
| - Issue #7173: Generator finalization could invalidate sys.exc_info(). | |
| - Issue #7544: Preallocate thread memory before creating the thread to avoid a | |
| fatal error in low memory condition. | |
| - Issue #7820: The parser tokenizer restores all bytes in the right if the BOM | |
| check fails. | |
| - Handle errors from looking up __prepare__ correctly. | |
| - Issue #5939: Add additional runtime checking to ensure a valid capsule in | |
| Modules/_ctypes/callproc.c. | |
| - Issue #7309: Fix unchecked attribute access when converting | |
| UnicodeEncodeError, UnicodeDecodeError, and UnicodeTranslateError to strings. | |
| - Issue #6902: Fix problem with built-in types format incorrectly with 0 | |
| padding. | |
| - Issue #7988: Fix default alignment to be right aligned for complex.__format__. | |
| Now it matches other numeric types. | |
| - Issue #5988: Remove deprecated functions PyOS_ascii_formatd, | |
| PyOS_ascii_strtod, and PyOS_ascii_atof. Use PyOS_double_to_string and | |
| PyOS_string_to_double instead. See issue #5835 for the original deprecations. | |
| - Issue #7385: Fix a crash in `MemoryView_FromObject` when `PyObject_GetBuffer` | |
| fails. Patch by Florent Xicluna. | |
| - Issue #7788: Fix an interpreter crash produced by deleting a list slice with | |
| very large step value. | |
| - Issue #7766: Change sys.getwindowsversion() return value to a named tuple and | |
| add the additional members returned in an OSVERSIONINFOEX structure. The new | |
| members are service_pack_major, service_pack_minor, suite_mask, and | |
| product_type. | |
| - Issue #7561: Operations on empty bytearrays (such as `int(bytearray())`) could | |
| crash in many places because of the PyByteArray_AS_STRING() macro returning | |
| NULL. The macro now returns a statically allocated empty string instead. | |
| - Issue #6690: Optimize the bytecode for expressions such as `x in {1, 2, 3}`, | |
| where the right hand operand is a set of constants, by turning the set into a | |
| frozenset and pre-building it as a constant. The comparison operation is made | |
| against the constant instead of building a new set each time it is executed (a | |
| similar optimization already existed which turned a list of constants into a | |
| pre-built tuple). Patch and additional tests by Dave Malcolm. | |
| - Issue #7622: Improve the split(), rsplit(), splitlines() and replace() methods | |
| of bytes, bytearray and unicode objects by using a common implementation based | |
| on stringlib's fast search. Patch by Florent Xicluna. | |
| - Issue #7632: Fix various str -> float conversion bugs present in 2.7 alpha 2, | |
| including: (1) a serious 'wrong output' bug that could occur for long (> 40 | |
| digit) input strings, (2) a crash in dtoa.c that occurred in debug builds when | |
| parsing certain long numeric strings corresponding to subnormal values, (3) a | |
| memory leak for some values large enough to cause overflow, and (4) a number | |
| of flaws that could lead to incorrectly rounded results. | |
| - The __complex__ method is now looked up on the class of instances to make it | |
| consistent with other special methods. | |
| - Issue #7462: Implement the stringlib fast search algorithm for the `rfind`, | |
| `rindex`, `rsplit` and `rpartition` methods. Patch by Florent Xicluna. | |
| - Issue #7604: Deleting an unset slotted attribute did not raise an | |
| AttributeError. | |
| - Issue #7534: Fix handling of IEEE specials (infinities, nans, negative zero) | |
| in ** operator. The behaviour now conforms to that described in C99 Annex F. | |
| - Issue #1811: improve accuracy and cross-platform consistency for true division | |
| of integers: the result of a/b is now correctly rounded for ints a and b (at | |
| least on IEEE 754 platforms), and in particular does not depend on the | |
| internal representation of an int. | |
| - Issue #6834: replace the implementation for the 'python' and 'pythonw' | |
| executables on OSX. | |
| These executables now work properly with the arch(1) command: ``arch -ppc | |
| python`` will start a universal binary version of python in PPC mode (unlike | |
| previous releases). | |
| - Issue #7466: Segmentation fault when the garbage collector is called in the | |
| middle of populating a tuple. Patch by Florent Xicluna. | |
| - Issue #7419: setlocale() could crash the interpreter on Windows when called | |
| with invalid values. | |
| - Issue #6077: On Windows, files opened with tempfile.TemporaryFile in "wt+" | |
| mode would appear truncated on the first '0x1a' byte (aka. Ctrl+Z). | |
| - Issue #7085: Fix crash when importing some extensions in a thread on MacOSX | |
| 10.6. | |
| - Issue #1757126: Fix the cyrillic-asian alias for the ptcp154 encoding. | |
| - Issue #6970: Remove redundant calls when comparing objects that don't | |
| implement the relevant rich comparison methods. | |
| - Issue #7298: Fixes for range and reversed(range(...)). Iteration over | |
| range(a, b, c) incorrectly gave an empty iterator when a, b and c fit in C | |
| long but the length of the range did not. Also fix several cases where | |
| reversed(range(a, b, c)) gave wrong results, and fix a refleak for | |
| reversed(range(a, b, c)) with large arguments. | |
| - Issue #7244: itertools.izip_longest() no longer ignores exceptions raised | |
| during the formation of an output tuple. | |
| - Issue #3297: On wide unicode builds, do not split unicode characters into | |
| surrogates. | |
| - Remove length limitation when constructing a complex number from a string. | |
| - Issue #1087418: Boost performance of bitwise operations for longs. | |
| - Support for AtheOS has been completely removed from the code base. It was | |
| disabled since Python 3.0. | |
| - Support for several legacy threading libraries has been disabled. These | |
| libraries are: Mach C threads, SunOS LWP, GNU pth, Irix threads. Support code | |
| will be entirely removed in 3.3. | |
| - Support for OSF* has been disabled. If nobody stands up, support will be | |
| removed in 3.3. See <http://bugs.python.org/issue8606>. | |
| - Peephole constant folding had missed UNARY_POSITIVE. | |
| - Issue #1722344: threading._shutdown() is now called in Py_Finalize(), which | |
| fixes the problem of some exceptions being thrown at shutdown when the | |
| interpreter is killed. Patch by Adam Olsen. | |
| - Issue #7147: Remove support for compiling Python without complex number | |
| support. | |
| - Issue #7120: logging: Removed import of multiprocessing which is causing crash | |
| in GAE. | |
| - Issue #1754094: Improve the stack depth calculation in the compiler. There | |
| should be no other effect than a small decrease in memory use. Patch by | |
| Christopher Tur Lesniewski-Laas. | |
| - Issue #7065: Fix a crash in bytes.maketrans and bytearray.maketrans when using | |
| byte values greater than 127. Patch by Derk Drukker. | |
| - Issue #1571184: The Unicode database contains properties for more characters. | |
| The tables for code points representing numeric values, white spaces or line | |
| breaks are now generated from the official Unicode Character Database files, | |
| and include information from the Unihan.txt file. | |
| - Issue #7019: Raise ValueError when unmarshalling bad long data, instead of | |
| producing internally inconsistent Python longs. | |
| - Issue #6990: Fix threading.local subclasses leaving old state around after a | |
| reference cycle GC which could be recycled by new locals. | |
| - Issue #5460: Fix an ambiguity in the grammar. | |
| - Issue #1766304: Improve performance of membership tests on range objects. | |
| - Issue #6713: Improve performance of integer -> string conversions. | |
| - Issue #6846: Fix bug where bytearray.pop() returns negative integers. | |
| - Issue #6750: A text file opened with io.open() could duplicate its output when | |
| writing from multiple threads at the same time. | |
| - Issue #6707: dir() on an uninitialized module caused a crash. | |
| - Issue #6540: Fixed crash for bytearray.translate() with invalid parameters. | |
| - Issue #6573: set.union() stopped processing inputs if an instance of self | |
| occurred in the argument chain. | |
| - Issue #6070: On posix platforms import no longer copies the execute bit from | |
| the .py file to the .pyc file if it is set. | |
| - Issue #1616979: Added the cp720 (Arabic DOS) encoding. | |
| - Issue #6428: Since Python 3.0, the __bool__ method must return a bool object, | |
| and not an int. Fix the corresponding error message, and the documentation. | |
| - The deprecated PyCObject has been removed. | |
| - Issue #6347: Include inttypes.h as well as stdint.h in pyport.h. This fixes a | |
| build failure on HP-UX: int32_t and uint32_t are defined in inttypes.h instead | |
| of stdint.h on that platform. | |
| - Issue #6373: Fixed a SystemError when encoding with the latin-1 codec and the | |
| 'surrogateescape' error handler, a string which contains unpaired surrogates. | |
| - Issue #4856: Remove checks for win NT. | |
| - Issue #6687: PyBytes_FromObject() no longer accepts an integer as its argument | |
| to construct a null-initialized bytes object. | |
| - Issue #1023290: Add from_bytes() and to_bytes() methods to integers. These | |
| methods allow the conversion of integers to bytes, and vice-versa. | |
| - Issue #7382: Fix bug in bytes.__getnewargs__ that prevented bytes instances | |
| from being copied with copy.copy(), and bytes subclasses from being pickled | |
| properly. | |
| - Code objects now support weak references. | |
| - Issue #7072: isspace(0xa0) is true on Mac OS X. | |
| - Issue #8084: PEP 370 now conforms to system conventions for framework builds | |
| on MacOS X. That is, "python setup.py install --user" will install into | |
| "~/Library/Python/2.7" instead of "~/.local". | |
| C-API | |
| ----- | |
| - Issue #2443: A new macro, `Py_VA_COPY`, copies the state of the | |
| variable argument list. `Py_VA_COPY` is equivalent to C99 | |
| `va_copy`, but available on all python platforms. | |
| - PySlice_GetIndicesEx now clips the step to [-PY_SSIZE_T_MAX, PY_SSIZE_T_MAX] | |
| instead of [-PY_SSIZE_T_MAX-1, PY_SSIZE_T_MAX]. This makes it safe to do | |
| "step = -step" when reversing a slice. | |
| - Issue #5753: A new C API function, `PySys_SetArgvEx`, allows embedders of the | |
| interpreter to set sys.argv without also modifying sys.path. This helps fix | |
| `CVE-2008-5983 | |
| <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5983>`_. | |
| - Add PyArg_ValidateKeywordArguments, which checks if all keyword arguments are | |
| strings in an efficient manner. | |
| - Issue #8276: PyEval_CallObject() is now only available in macro form. The | |
| function declaration, which was kept for backwards compatibility reasons, is | |
| now removed (the macro was introduced in 1997!). | |
| - Issue #7767: New function PyLong_AsLongLongAndOverflow added, analogous to | |
| PyLong_AsLongAndOverflow. | |
| - Make PyUnicode_CompareWithASCIIString return not equal if the Python string | |
| has '\0' at the end. | |
| - Issue #5080: The argument parsing functions PyArg_ParseTuple, | |
| PyArg_ParseTupleAndKeywords, PyArg_VaParse, PyArg_VaParseTupleAndKeywords and | |
| PyArg_Parse now raise a DeprecationWarning for float arguments passed with the | |
| 'L' format code. This will become a TypeError in a future version of Python, | |
| to match the behaviour of the other integer format codes. | |
| - Issue #7033: Function ``PyErr_NewExceptionWithDoc()`` added. | |
| - Issue #7414: 'C' code wasn't being skipped properly (for keyword arguments) in | |
| PyArg_ParseTupleAndKeywords. | |
| - Issue #7228: Add '%lld' and '%llu' support to PyString_FromFormat(V) and | |
| PyErr_Format, on machines with HAVE_LONG_LONG defined. | |
| - Issue #6151: Made PyDescr_COMMON conform to standard C (like PyObject_HEAD in | |
| PEP 3123). The PyDescr_TYPE and PyDescr_NAME macros should be used for | |
| accessing the d_type and d_name members of structures using PyDescr_COMMON. | |
| - Issue #6405: Remove duplicate type declarations in descrobject.h. | |
| - The code flags for old __future__ features are now available again. | |
| - Issue #5954: Add a PyFrame_GetLineNumber() function to replace most uses of | |
| PyCode_Addr2Line(). | |
| - Issue #5959: Add a PyCode_NewEmpty() function to create a new empty code | |
| object at a specified file, function, and line number. | |
| - Issue #1419652: Change the first argument to PyImport_AppendInittab() to | |
| ``const char *`` as the string is stored beyond the call. | |
| - Issue #2422: When compiled with the ``--with-valgrind`` option, the pymalloc | |
| allocator will be automatically disabled when running under Valgrind. This | |
| gives improved memory leak detection when running under Valgrind, while taking | |
| advantage of pymalloc at other times. | |
| Library | |
| ------- | |
| - In pdb, when Ctrl-C is entered while defining commands for a breakpoint, the | |
| old commands are restored. | |
| - For traceback debugging, the pdb listing now also shows the locations where | |
| the exception was originally (re)raised, if it differs from the last line | |
| executed (e.g. in case of finally clauses). | |
| - The pdb command "source" has been added. It displays the source code for a | |
| given object, if possible. | |
| - The pdb command "longlist" has been added. It displays the whole source code | |
| for the current function. | |
| - Issue #1503502: Make pdb.Pdb easier to subclass by putting message and error | |
| output into methods. | |
| - Issue #809887: Make the output of pdb's breakpoint deletions more consistent; | |
| emit a message when a breakpoint is enabled or disabled. | |
| - Issue #5294: Fix the behavior of pdb's "continue" command when called in the | |
| top-level debugged frame. | |
| - Issue #5727: Restore the ability to use readline when calling into pdb in | |
| doctests. | |
| - Issue #6719: In pdb, do not stop somewhere in the encodings machinery if the | |
| source file to be debugged is in a non-builtin encoding. | |
| - Issue #8048: Prevent doctests from failing when sys.displayhook has been | |
| reassigned. | |
| - Issue #8015: In pdb, do not crash when an empty line is entered as a | |
| breakpoint command. | |
| - In pdb, allow giving a line number to the "until" command. | |
| - Issue #1437051: For pdb, allow "continue" and related commands in .pdbrc | |
| files. Also, add a command-line option "-c" that runs a command as if given | |
| in .pdbrc. | |
| - Issue #4179: In pdb, allow "list ." as a command to return to the currently | |
| debugged line. | |
| - Issue #4108: In urllib.robotparser, if there are multiple ``User-agent: *`` | |
| entries, consider the first one. | |
| - Issue #6630: Allow customizing regex flags when subclassing the | |
| string.Template class. | |
| - Issue #9411: Allow specifying an encoding for config files in the configparser | |
| module. | |
| - Issue #1682942: Improvements to configparser: support alternate delimiters, | |
| alternate comment prefixes and empty lines in values. | |
| - Issue #9354: Provide getsockopt() in asyncore's file_wrapper. | |
| - Issue #8966: ctypes: Remove implicit bytes-unicode conversion. | |
| - Issue #9378: python -m pickle <pickle file> will now load and display the | |
| first object in the pickle file. | |
| - Issue #4770: Restrict binascii module to accept only bytes (as specified). | |
| And fix the email package to encode to ASCII instead of ``raw-unicode-escape`` | |
| before ASCII-to-binary decoding. | |
| - Issue #9384: ``python -m tkinter`` will now display a simple demo applet. | |
| - The default size of the re module's compiled regular expression cache has been | |
| increased from 100 to 500 and the cache replacement policy has changed from | |
| simply clearing the entire cache on overflow to forgetting the least recently | |
| used cached compiled regular expressions. This is a performance win for | |
| applications that use a lot of regular expressions and limits the impact of | |
| the performance hit anytime the cache is exceeded. | |
| - Issue #7113: Speed up loading in configparser. Patch by Łukasz Langa. | |
| - Issue #9032: XML-RPC client retries the request on EPIPE error. The EPIPE | |
| error occurs when the server closes the socket and the client sends a big | |
| XML-RPC request. | |
| - Issue #4629: getopt raises an error if an argument ends with "=", whereas | |
| getopt doesn't accept a value (eg. --help= is rejected if getopt uses | |
| ['help='] long options). | |
| - Issue #7989: Added pure python implementation of the `datetime` module. The C | |
| module is renamed to `_datetime` and if available, overrides all classes | |
| defined in datetime with fast C implementation. Python implementation is based | |
| on the original python prototype for the datetime module by Tim Peters with | |
| minor modifications by the PyPy project. The test suite now tests `datetime` | |
| module with and without `_datetime` acceleration using the same test cases. | |
| - Issue #7895: platform.mac_ver() no longer crashes after calling os.fork(). | |
| - Issue #9323: Fixed a bug in trace.py that resulted in losing the name of the | |
| script being traced. Patch by Eli Bendersky. | |
| - Issue #9282: Fixed --listfuncs option of trace.py. Thanks Eli Bendersky for | |
| the patch. | |
| - Issue #3704: http.cookiejar was not properly handling URLs with a / in the | |
| parameters. | |
| - Issue #9268: ``pickletools.dis()`` now has an optional *annotate* argument | |
| which controls printing of opcode descriptions in ``dis()`` output. | |
| - Issue #1555570: email no longer inserts extra blank lines when a \r\n combo | |
| crosses an 8192 byte boundary. | |
| - Issue #9243: Fix sndhdr module and add unit tests, contributed by James Lee. | |
| - ``ast.literal_eval()`` now allows byte literals. | |
| - Issue #9137: Fix issue in MutableMapping.update, which incorrectly treated | |
| keyword arguments called 'self' or 'other' specially. | |
| - ``ast.literal_eval()`` now allows set literals. | |
| - Issue #9164: Ensure that sysconfig handles duplicate -arch flags in CFLAGS. | |
| - Issue #7646: The fnmatch pattern cache no longer grows without bound. | |
| - Issue #9136: Fix 'dictionary changed size during iteration' RuntimeError | |
| produced when profiling the decimal module. This was due to a dangerous | |
| iteration over 'locals()' in Context.__init__. | |
| - Fix extreme speed issue in Decimal.pow when the base is an exact power of 10 | |
| and the exponent is tiny (for example, ``Decimal(10) ** | |
| Decimal('1e-999999999')``). | |
| - Issue #9186: Fix math.log1p(-1.0) to raise ValueError, not OverflowError. | |
| - Issue #9130: Fix validation of relative imports in parser module. | |
| - Issue #9128: Fix validation of class decorators in parser module. | |
| - Issue #9094: python -m pickletools will now disassemble pickle files listed in | |
| the command line arguments. See output of python -m pickletools -h for more | |
| details. | |
| - Issue #5468: urlencode to handle bytes type and other encodings in its query | |
| parameter. Patch by Dan Mahn. | |
| - Issue #7673: Fix security vulnerability (CVE-2010-2089) in the audioop module, | |
| ensure that the input string length is a multiple of the frame size. | |
| - Issue #6507: Accept source strings in dis.dis(). Original patch by Daniel | |
| Urban. | |
| - Issue #7829: Clearly document that the dis module is exposing an | |
| implementation detail that is not stable between Python VMs or releases. | |
| - Issue #6589: cleanup asyncore.socket_map in case smtpd.SMTPServer constructor | |
| raises an exception. | |
| - Issue #9110: Addition of ContextDecorator to contextlib, for creating APIs | |
| that act as both context managers and decorators. contextmanager changes to | |
| use ContextDecorator. | |
| - Implement importlib.abc.SourceLoader and deprecate PyLoader and PyPycLoader | |
| for removal in Python 3.4. | |
| - Issue #9064: pdb's "up" and "down" commands now accept an optional argument | |
| giving the number of frames to go. | |
| - Issue #9018: os.path.normcase() now raises a TypeError if the argument is not | |
| ``str`` or ``bytes``. | |
| - Issue #9075: In the ssl module, remove the setting of a ``debug`` flag on an | |
| OpenSSL structure. | |
| - Issue #8682: The ssl module now temporary increments the reference count of a | |
| socket object got through ``PyWeakref_GetObject``, so as to avoid possible | |
| deallocation while the object is still being used. | |
| - Issue #1368368: FancyURLOpener class changed to throw an Exception on wrong | |
| password instead of presenting an interactive prompt. Older behavior can be | |
| obtained by passing retry=True to http_error_xxx methods of FancyURLOpener. | |
| - Issue #8720: Fix regression caused by fix for #4050 by making getsourcefile | |
| smart enough to find source files in the linecache. | |
| - Issue #5610: feedparser no longer eats extra characters at the end of a body | |
| part if the body part ends with a ``\r\n``. | |
| - Issue #8986: math.erfc was incorrectly raising OverflowError for values | |
| between -27.3 and -30.0 on some platforms. | |
| - Issue #8784: Set tarfile default encoding to 'utf-8' on Windows. | |
| - Issue #8966: If a ctypes structure field is an array of c_char, convert its | |
| value to bytes instead of str (as done for c_char and c_char_p). | |
| - Issue #8188: Comparisons between Decimal and Fraction objects are now | |
| permitted, returning a result based on the exact numerical values of the | |
| operands. This builds on issue #2531, which allowed Decimal-to-float | |
| comparisons; all comparisons involving numeric types (bool, int, float, | |
| complex, Decimal, Fraction) should now act as expected. | |
| - Issue #8897: Fix sunau module, use bytes to write the header. Patch written by | |
| Thomas Jollans. | |
| - Issue #8899: time.struct_time now has class and attribute docstrings. | |
| - Issue #6470: Drop UNC prefix in FixTk. | |
| - Issue #4768: base64 encoded email body parts were incorrectly stored as binary | |
| strings. They are now correctly converted to strings. | |
| - Issue #8833: tarfile created hard link entries with a size field != 0 by | |
| mistake. | |
| - Charset.body_encode now correctly handles base64 encoding by encoding with the | |
| output_charset before calling base64mime.encode. Passes the tests from 2.x | |
| issue #1368247. | |
| - Issue #8845: sqlite3 Connection objects now have a read-only in_transaction | |
| attribute that is True iff there are uncommitted changes. | |
| - Issue #1289118: datetime.timedelta objects can now be multiplied by float and | |
| divided by float and int objects. Results are rounded to the nearest multiple | |
| of timedelta.resolution with ties resolved using round-half-to-even method. | |
| - Issue #7150: Raise OverflowError if the result of adding or subtracting | |
| timedelta from date or datetime falls outside of the MINYEAR:MAXYEAR range. | |
| - Issue #8806: add SSL contexts support to ftplib. | |
| - Issue #4769: Fix main() function of the base64 module, use sys.stdin.buffer | |
| and sys.stdout.buffer (instead of sys.stdin and sys.stdout) to use the bytes | |
| API. | |
| - Issue #8770: Now sysconfig displays information when it's called as a script. | |
| Initial idea by Sridhar Ratnakumar. | |
| - Issue #6662: Fix parsing of malformatted charref (&#bad;), patch written by | |
| Fredrik Håård. | |
| - Issue #8540: Decimal module: rename the Context._clamp attribute to | |
| Context.clamp and make it public. This is useful in creating contexts that | |
| correspond to the decimal interchange formats specified in IEEE 754. | |
| - Issue #6268: Fix seek() method of codecs.open(), don't read or write the BOM | |
| twice after seek(0). Fix also reset() method of codecs, UTF-16, UTF-32 and | |
| StreamWriter classes. | |
| - Issue #3798: sys.exit(message) writes the message to sys.stderr file, instead | |
| of the C file stderr, to use stderr encoding and error handler. | |
| - Issue #8782: Add a trailing newline in linecache.updatecache to the last line | |
| of files without one. | |
| - Issue #8729: Return NotImplemented from collections.Mapping.__eq__ when | |
| comparing to a non-mapping. | |
| - Issue #8774: tabnanny uses the encoding cookie (#coding:...) to use the | |
| correct encoding. | |
| - Issue #4870: Add an `options` attribute to SSL contexts, as well as several | |
| ``OP_*`` constants to the `ssl` module. This allows selectively disabling | |
| protocol versions, when used in combination with `PROTOCOL_SSLv23`. | |
| - Issue #8759: Fixed user paths in sysconfig for posix and os2 schemes. | |
| - Issue #8663: distutils.log emulates backslashreplace error handler. Fix | |
| compilation in a non-ASCII directory if stdout encoding is ASCII (eg. if | |
| stdout is not a TTY). | |
| - Issue #8513: os.get_exec_path() supports b'PATH' key and bytes value. | |
| subprocess.Popen() and os._execvpe() support bytes program name. Add | |
| os.supports_bytes_environ flag: True if the native OS type of the environment | |
| is bytes (eg. False on Windows). | |
| - Issue #8633: tarfile is now able to read and write archives with "raw" binary | |
| pax headers as described in POSIX.1-2008. | |
| - Issue #1285086: Speed up urllib.parse functions: quote, quote_from_bytes, | |
| unquote, unquote_to_bytes. | |
| - Issue #8688: Distutils now recalculates MANIFEST every time. | |
| - Issue #8477: ssl.RAND_egd() and ssl._test_decode_cert() support str with | |
| surrogates and bytes for the filename. | |
| - Issue #8550: Add first class ``SSLContext`` objects to the ssl module. | |
| - Issue #8681: Make the zlib module's error messages more informative when the | |
| zlib itself doesn't give any detailed explanation. | |
| - The audioop module now supports sound fragments of length greater than 2**31 | |
| bytes on 64-bit machines, and is PY_SSIZE_T_CLEAN. | |
| - Issue #4972: Add support for the context management protocol to the ftplib.FTP | |
| class. | |
| - Issue #8664: In py_compile, create __pycache__ when the compiled path is | |
| given. | |
| - Issue #8514: Add os.fsencode() function (Unix only): encode a string to bytes | |
| for use in the file system, environment variables or the command line. | |
| - Issue #8571: Fix an internal error when compressing or decompressing a chunk | |
| larger than 1GB with the zlib module's compressor and decompressor objects. | |
| - Issue #8603: Support bytes environmental variables on Unix: Add os.environb | |
| mapping and os.getenvb() function. os.unsetenv() encodes str argument to the | |
| file system encoding with the surrogateescape error handler (instead of | |
| utf8/strict) and accepts bytes. posix.environ keys and values are now bytes. | |
| - Issue #8573: asyncore _strerror() function might throw ValueError. | |
| - Issue #8483: asyncore.dispatcher's __getattr__ method produced confusing error | |
| messages when accessing undefined class attributes because of the cheap | |
| inheritance with the underlying socket object. The cheap inheritance has been | |
| deprecated. | |
| - Issue #4265: shutil.copyfile() was leaking file descriptors when disk fills. | |
| Patch by Tres Seaver. | |
| - Issue #8390: tarfile uses surrogateescape as the default error handler | |
| (instead of replace in read mode or strict in write mode). | |
| - Issue #7755: Use an unencumbered audio file for tests. | |
| - Issue #8621: uuid.uuid4() returned the same sequence of values in the parent | |
| and any children created using ``os.fork`` on MacOS X 10.6. | |
| - Issue #8567: Fix precedence of signals in Decimal module: when a Decimal | |
| operation raises multiple signals and more than one of those signals is | |
| trapped, the specification determines the order in which the signals should be | |
| handled. In many cases this order wasn't being followed, leading to the wrong | |
| Python exception being raised. | |
| - Issue #7865: The close() method of ``io`` objects should not swallow | |
| exceptions raised by the implicit flush(). Also qensure that calling close() | |
| several times is supported. Patch by Pascal Chambon. | |
| - Issue #4687: Fix accuracy of garbage collection runtimes displayed with | |
| gc.DEBUG_STATS. | |
| - Issue #8354: The siginterrupt setting is now preserved for all signals, not | |
| just SIGCHLD. | |
| - Issue #7192: webbrowser.get("firefox") now works on Mac OS X, as does | |
| webbrowser.get("safari"). | |
| - Issue #8464: tarfile no longer creates files with execute permissions set when | |
| mode="w|" is used. | |
| - Issue #7834: Fix connect() of Bluetooth L2CAP sockets with recent versions of | |
| the Linux kernel. Patch by Yaniv Aknin. | |
| - Issue #8295: Added shutil.unpack_archive. | |
| - Issue #6312: Fixed http HEAD request when the transfer encoding is chunked. | |
| It should correctly return an empty response now. | |
| - Issue #8546: Reject None given as the buffering argument to _pyio.open. | |
| - Issue #8549: Fix compiling the _ssl extension under AIX. Patch by | |
| Sridhar Ratnakumar. | |
| - Issue #6656: fix locale.format_string to handle escaped percents | |
| and mappings. | |
| - Issue #2302: Fix a race condition in SocketServer.BaseServer.shutdown, where | |
| the method could block indefinitely if called just before the event loop | |
| started running. This also fixes the occasional freezes witnessed in | |
| test_httpservers. | |
| - Issue #8524: When creating an SSL socket, the timeout value of the original | |
| socket wasn't retained (instead, a socket with a positive timeout would be | |
| turned into a non-blocking SSL socket). | |
| - Issue #5103: SSL handshake would ignore the socket timeout and block | |
| indefinitely if the other end didn't respond. | |
| - The do_handshake() method of SSL objects now adjusts the blocking mode of the | |
| SSL structure if necessary (as other methods already do). | |
| - Issue #8391: os.execvpe() and os.getenv() supports unicode with surrogates and | |
| bytes strings for environment keys and values. | |
| - Issue #8467: Pure Python implementation of subprocess encodes the error | |
| message using surrogatepass error handler to support surrogates in the | |
| message. | |
| - Issue #8468: bz2.BZ2File() accepts str with surrogates and bytes filenames. | |
| - Issue #8451: Syslog module now uses basename(sys.argv[0]) instead of the | |
| string "python" as the *ident*. openlog() arguments are all optional and | |
| keywords. | |
| - Issue #8108: Fix the unwrap() method of SSL objects when the socket has a | |
| non-infinite timeout. Also make that method friendlier with applications | |
| wanting to continue using the socket in clear-text mode, by disabling | |
| OpenSSL's internal readahead. Thanks to Darryl Miles for guidance. | |
| - Issue #8496: make mailcap.lookup() always return a list, rather than an | |
| iterator. Patch by Gregory Nofi. | |
| - Issue #8195: Fix a crash in sqlite Connection.create_collation() if the | |
| collation name contains a surrogate character. | |
| - Issue #8484: Load all ciphers and digest algorithms when initializing the _ssl | |
| extension, such that verification of some SSL certificates doesn't fail | |
| because of an "unknown algorithm". | |
| - Issue #6547: Added the ignore_dangling_symlinks option to shutil.copytree. | |
| - Issue #1540112: Now allowing the choice of a copy function in shutil.copytree. | |
| - Issue #4814: timeout parameter is now applied also for connections resulting | |
| from PORT/EPRT commands. | |
| - Issue #8463: added missing reference to bztar in shutil's documentation. | |
| - Issue #7154: urllib.request can now detect the proxy settings on OSX 10.6 (as | |
| long as the user didn't specify 'automatic proxy configuration'). | |
| - Issue #3817: ftplib.FTP.abort() method now considers 225 a valid response code | |
| as stated in RFC-959 at chapter 5.4. | |
| - Issue #8394: _ctypes.dlopen() accepts bytes, bytearray and str with | |
| surrogates. | |
| - Issue #850728: Add a *timeout* parameter to the `acquire()` method of | |
| `threading.Semaphore` objects. Original patch by Torsten Landschoff. | |
| - Issue #8322: Add a *ciphers* argument to SSL sockets, so as to change the | |
| available cipher list. Helps fix test_ssl with OpenSSL 1.0.0. | |
| - Issue #8393: subprocess accepts bytes, bytearray and str with surrogates for | |
| the current working directory. | |
| - Issue #7606: XML-RPC traceback stored in X-traceback is now encoded to ASCII | |
| using backslashreplace error handler. | |
| - Issue #8412: os.system() now accepts bytes, bytearray and str with surrogates. | |
| - Issue #2987: RFC2732 support for urlparse (IPv6 addresses). Patch by Tony | |
| Locke and Hans Ulrich Niedermann. | |
| - Issue #5277: Fix quote counting when parsing RFC 2231 encoded parameters. | |
| - Issue #7316: The acquire() method of lock objects in the ``threading`` | |
| module now takes an optional timeout argument in seconds. Timeout support | |
| relies on the system threading library, so as to avoid a semi-busy wait loop. | |
| - Issue #8383: pickle and pickletools use surrogatepass error handler when | |
| encoding unicode as utf8 to support lone surrogates and stay compatible with | |
| Python 2.x and 3.x. | |
| - Issue #7585: difflib context and unified diffs now place a tab between | |
| filename and date, conforming to the 'standards' they were originally designed | |
| to follow. This improves compatibility with patch tools. | |
| - Issue #7472: Fixed typo in email.encoders module; messages using ISO-2022 | |
| character sets will now consistently use a Content-Transfer-Encoding of 7bit | |
| rather than sometimes being marked as 8bit. | |
| - Issue #8375: test_distutils now checks if the temporary directory are still | |
| present before it cleans them. | |
| - Issue #8374: Update the internal alias table in the ``locale`` module to | |
| cover recent locale changes and additions. | |
| - Issue #8321: Give access to OpenSSL version numbers from the `ssl` module, | |
| using the new attributes `ssl.OPENSSL_VERSION`, `ssl.OPENSSL_VERSION_INFO` and | |
| `ssl.OPENSSL_VERSION_NUMBER`. | |
| - Add functools.total_ordering() and functools.cmp_to_key(). | |
| - Issue #8257: The Decimal construct now accepts a float instance directly, | |
| converting that float to a Decimal of equal value: | |
| >>> Decimal(1.1) | |
| Decimal('1.100000000000000088817841970012523233890533447265625') | |
| - Issue #8294: The Fraction constructor now accepts Decimal and float instances | |
| directly. | |
| - Issue #7279: Comparisons involving a Decimal signaling NaN now signal | |
| InvalidOperation instead of returning False. (Comparisons involving a quiet | |
| NaN are unchanged.) Also, Decimal quiet NaNs are now hashable; Decimal | |
| signaling NaNs remain unhashable. | |
| - Issue #2531: Comparison operations between floats and Decimal instances now | |
| return a result based on the numeric values of the operands; previously they | |
| returned an arbitrary result based on the relative ordering of id(float) and | |
| id(Decimal). See also issue #8188, which adds Decimal-to-Fraction | |
| comparisons. | |
| - Added a subtract() method to collections.Counter(). | |
| - Issue #8233: When run as a script, py_compile.py optionally takes a single | |
| argument `-` which tells it to read files to compile from stdin. Each line is | |
| read on demand and the named file is compiled immediately. (Original patch by | |
| Piotr Ożarowski). | |
| - Backwards incompatible change: Unicode codepoints line tabulation (0x0B) and | |
| form feed (0x0C) are now considered linebreaks, as specified in Unicode | |
| Standard Annex #14. See issue #7643. http://www.unicode.org/reports/tr14/ | |
| - Comparisons using one of <, <=, >, >= between a complex instance and a | |
| Fractions instance now raise TypeError instead of returning True/False. This | |
| makes Fraction <=> complex comparisons consistent with int <=> complex, float | |
| <=> complex, and complex <=> complex comparisons. | |
| - Issue #8139: ossaudiodev didn't initialize its types properly, therefore some | |
| methods (such as oss_mixer_device.fileno()) were not available. Initial patch | |
| by Bertrand Janin. | |
| - Issue #8205: Remove the "Modules" directory from sys.path when Python is | |
| running from the build directory (POSIX only). | |
| - Issue #7512: shutil.copystat() could raise an OSError when the filesystem | |
| didn't support chflags() (for example ZFS under FreeBSD). The error is now | |
| silenced. | |
| - Issue #7860: platform.uname now reports the correct 'machine' type when Python | |
| is running in WOW64 mode on 64 bit Windows. | |
| - Issue #3890, #8222: Fix recv() and recv_into() on non-blocking SSL sockets. | |
| Also, enable the SSL_MODE_AUTO_RETRY flag on SSL sockets, so that blocking | |
| reads and writes are always retried by OpenSSL itself. | |
| - Issue #4282: Fix the main function of the profile module for a non-ASCII | |
| script, open the file in binary mode and not in text mode with the default | |
| (utf8) encoding. | |
| - Issue #8179: Fix macpath.realpath() on a non-existing path. | |
| - Issue #8024: Update the Unicode database to 5.2. | |
| - Issue #8168: py_compile now handles files with utf-8 BOMS. | |
| - ``tokenize.detect_encoding`` now returns ``'utf-8-sig'`` when a UTF-8 BOM is | |
| detected. | |
| - Issue #6716/2: Backslash-replace error output in compilall. | |
| - Issue #4961: Inconsistent/wrong result of askyesno function in tkMessageBox | |
| with Tcl/Tk-8.5. | |
| - Issue #8140: extend compileall to compile single files. Add -i option. | |
| - Issue #7356: ctypes.util: Make parsing of ldconfig output independent of the | |
| locale. | |
| - The internals of the subprocess module on POSIX systems have been replaced by | |
| an extension module (_posixsubprocess) so that the fork()+exec() can be done | |
| safely without the possibility of deadlock in multithreaded applications. | |
| - subprocess.Popen now has restore_signals and start_new_session features. The | |
| default of restore_signals=True is a new behavior compared to earlier Python | |
| versions. This means that signals such as SIGPIPE are not ignored by default | |
| in subprocesses launched by Python (Issue #1652). | |
| - Issue #6472: The xml.etree package is updated to ElementTree 1.3. The | |
| cElementTree module is updated too. | |
| - Issue #7774: Set sys.executable to an empty string if argv[0] has been set to | |
| a non existent program name and Python is unable to retrieve the real program | |
| name. | |
| - Issue #7880: Fix sysconfig when the python executable is a symbolic link. | |
| - Issue #6509: fix re.sub to work properly when the pattern, the string, and the | |
| replacement were all bytes. Patch by Antoine Pitrou. | |
| - The sqlite3 module was updated to pysqlite 2.6.0. This fixes several obscure | |
| bugs and allows loading SQLite extensions from shared libraries. | |
| - Issue #1054943: Fix ``unicodedata.normalize('NFC', text)`` for the Public | |
| Review Issue #29 (http://unicode.org/review/pr-29.html). | |
| - Issue #7494: fix a crash in _lsprof (cProfile) after clearing the profiler, | |
| reset also the pointer to the current pointer context. | |
| - Issue #7232: Add support for the context management protocol to the TarFile | |
| class. | |
| - Issue #7250: Fix info leak of os.environ across multi-run uses of | |
| wsgiref.handlers.CGIHandler. | |
| - Issue #1729305: Fix doctest to handle encode error with "backslashreplace". | |
| - Issue #691291: codecs.open() should not convert end of lines on reading and | |
| writing. | |
| - Issue #7869: logging: improved diagnostic for format-time errors. | |
| - Issue #7868: logging: added loggerClass attribute to Manager. | |
| - logging: Implemented PEP 391. | |
| - Issue #1537721: Add a writeheader() method to csv.DictWriter. | |
| - Issue #7959: ctypes callback functions are now registered correctly with the | |
| cycle garbage collector. | |
| - Issue #5801: removed spurious empty lines in wsgiref. | |
| - Issue #6666: fix bug in trace.py that applied the list of directories to be | |
| ignored only to the first file. Noted by Bogdan Opanchuk. | |
| - Issue #7597: curses.use_env() can now be called before initscr(). Noted by | |
| Kan-Ru Chen. | |
| - Issue #7310: fix the __repr__ of os.environ to show the environment variables. | |
| - Issue #7970: email.Generator.flatten now correctly flattens message/rfc822 | |
| messages parsed by email.Parser.HeaderParser. | |
| - Issue #7361: Importlib was not properly checking the number of bytes in | |
| bytecode file when it was less than 8 bytes. | |
| - Issue #7633: In the decimal module, Context class methods (with the exception | |
| of canonical and is_canonical) now accept instances of int and long wherever a | |
| Decimal instance is accepted, and implicitly convert that argument to Decimal. | |
| Previously only some arguments were converted. | |
| - Issue #7835: shelve should no longer produce mysterious warnings during | |
| interpreter shutdown. | |
| - Issue #2746: Don't escape ampersands and angle brackets ("&", "<", ">") in XML | |
| processing instructions and comments. These raw characters are allowed by the | |
| XML specification, and are necessary when outputting e.g. PHP code in a | |
| processing instruction. Patch by Neil Muller. | |
| - Issue #6233: ElementTree failed converting unicode characters to XML entities | |
| when they couldn't be represented in the requested output encoding. Patch by | |
| Jerry Chen. | |
| - Issue #6003: add an argument to ``zipfile.Zipfile.writestr`` to specify the | |
| compression type. | |
| - Issue #4772: Raise a ValueError when an unknown Bluetooth protocol is | |
| specified, rather than fall through to AF_PACKET (in the `socket` module). | |
| Also, raise ValueError rather than TypeError when an unknown TIPC address type | |
| is specified. Patch by Brian Curtin. | |
| - Issue #6939: Fix file I/O objects in the `io` module to keep the original file | |
| position when calling `truncate()`. It would previously change the file | |
| position to the given argument, which goes against the tradition of | |
| ftruncate() and other truncation APIs. Patch by Pascal Chambon. | |
| - Issue #7610: Reworked implementation of the internal | |
| ``zipfile.ZipExtFile`` class used to represent files stored inside an | |
| archive. The new implementation is significantly faster and can be wrapped in | |
| an ``io.BufferedReader`` object for more speedups. It also solves an | |
| issue where interleaved calls to `read()` and `readline()` give wrong results. | |
| Patch by Nir Aides. | |
| - Issue #6963: Added "maxtasksperchild" argument to multiprocessing.Pool, | |
| allowing for a maximum number of tasks within the pool to be completed by the | |
| worker before that worker is terminated, and a new one created to replace it. | |
| - Issue #7792: Registering non-classes to ABCs raised an obscure error. | |
| - Issue #7785: Don't accept bytes in FileIO.write(). | |
| - Removed the functions 'verify' and 'vereq' from Lib/test/support.py. | |
| - Issue #7773: Fix an UnboundLocalError in platform.linux_distribution() when | |
| the release file is empty. | |
| - Issue #7561: Fix crashes when using bytearray objects with the posix | |
| module. | |
| - Issue #1670765: Prevent email.generator.Generator from re-wrapping headers in | |
| multipart/signed MIME parts, which fixes one of the sources of invalid | |
| modifications to such parts by Generator. | |
| - Issue #7703: Add support for the new buffer API to `binascii.a2bhqx`. Patch | |
| by Florent Xicluna, along with some additional tests. | |
| - Issue #7701: Fix crash in binascii.b2a_uu() in debug mode when given a 1-byte | |
| argument. Patch by Victor Stinner. | |
| - Issue #3299: Fix possible crash in the _sre module when given bad argument | |
| values in debug mode. Patch by Victor Stinner. | |
| - Issue #2846: Add support for gzip.GzipFile reading zero-padded files. Patch | |
| by Brian Curtin. | |
| - Issue #7681: Use floor division in appropriate places in the wave module. | |
| - Issue #5372: Drop the reuse of .o files in Distutils' ccompiler (since | |
| Extension extra options may change the output without changing the .c | |
| file). Initial patch by Collin Winter. | |
| - Issue #7617: Make sure distutils.unixccompiler.UnixCCompiler recognizes gcc | |
| when it has a fully qualified configuration prefix. Initial patch by Arfrever. | |
| - Issue #7105: Make WeakKeyDictionary and WeakValueDictionary robust against the | |
| destruction of weakref'ed objects while iterating. | |
| - Issue #7455: Fix possible crash in cPickle on invalid input. Patch by Victor | |
| Stinner. | |
| - Issue #1628205: Socket file objects returned by socket.socket.makefile() now | |
| properly handles EINTR within the read, readline, write & flush methods. The | |
| socket.sendall() method now properly handles interrupted system calls. | |
| - Issue #7471: Improve the performance of GzipFile's buffering mechanism, and | |
| make it implement the `io.BufferedIOBase` ABC to allow for further speedups by | |
| wrapping it in an `io.BufferedReader`. Patch by Nir Aides. | |
| - Issue #3972: http.client.HTTPConnection now accepts an optional source_address | |
| parameter to allow specifying where your connections come from. | |
| - socket.create_connection now accepts an optional source_address parameter. | |
| - Issue #5511: now zipfile.ZipFile can be used as a context manager. Initial | |
| patch by Brian Curtin. | |
| - Issue #7556: Make sure Distutils' msvc9compile reads and writes the MSVC XML | |
| Manifest file in text mode so string patterns can be used in regular | |
| expressions. | |
| - Issue #7552: Removed line feed in the base64 Authorization header in the | |
| Distutils upload command to avoid an error when PyPI reads it. This occurs on | |
| long passwords. Initial patch by JP St. Pierre. | |
| - Issue #7231: urllib2 cannot handle https with proxy requiring auth. Patch by | |
| Tatsuhiro Tsujikawa. | |
| - Issue #4757: `zlib.compress` and other methods in the zlib module now raise a | |
| TypeError when given an `str` object (rather than a `bytes`-like object). | |
| Patch by Victor Stinner and Florent Xicluna. | |
| - Issue #7349: Make methods of file objects in the io module accept None as an | |
| argument where file-like objects (ie StringIO and BytesIO) accept them to mean | |
| the same as passing no argument. | |
| - Issue #7357: tarfile no longer suppresses fatal extraction errors by default. | |
| - Issue #5949: added check for correct lineends in input from IMAP server in | |
| imaplib. | |
| - Add count() and reverse() methods to collections.deque(). | |
| - Fix variations of extending deques: d.extend(d) d.extendleft(d) d+=d | |
| - Issue #6986: Fix crash in the JSON C accelerator when called with the wrong | |
| parameter types. Patch by Victor Stinner. | |
| - Issue #7457: added a read_pkg_file method to | |
| distutils.dist.DistributionMetadata. | |
| - logging: Added optional `secure` parameter to SMTPHandler, to enable use of | |
| TLS with authentication credentials. | |
| - Issue #1923: Fixed the removal of meaningful spaces when PKG-INFO is generated | |
| in Distutils. Patch by Stephen Emslie. | |
| - Issue #4120: Drop reference to CRT from manifest when building extensions with | |
| msvc9compiler. | |
| - Issue #7333: The `posix` module gains an `initgroups()` function providing | |
| access to the initgroups(3) C library call on Unix systems which implement it. | |
| Patch by Jean-Paul Calderone. | |
| - Issue #7408: Fixed distutils.tests.sdist so it doesn't check for group | |
| ownership when the group is not forced, because the group may be different | |
| from the user's group and inherit from its container when the test is run. | |
| - Issue #4486: When an exception has an explicit cause, do not print its | |
| implicit context too. This affects the `traceback` module as well as built-in | |
| exception printing. | |
| - Issue #1515: Enable use of deepcopy() with instance methods. Patch by Robert | |
| Collins. | |
| - Issue #7403: logging: Fixed possible race condition in lock creation. | |
| - Issue #6845: Add restart support for binary upload in ftplib. The | |
| `storbinary()` method of FTP and FTP_TLS objects gains an optional `rest` | |
| argument. Patch by Pablo Mouzo. | |
| - Issue #5788: `datetime.timedelta` objects get a new `total_seconds()` method | |
| returning the total number of seconds in the duration. Patch by Brian | |
| Quinlan. | |
| - Issue #7133: SSL objects now support the new buffer API. | |
| - Issue #1488943: difflib.Differ() doesn't always add hints for tab characters. | |
| - Issue #6123: tarfile now opens empty archives correctly and consistently | |
| raises ReadError on empty files. | |
| - Issue #7354: distutils.tests.test_msvc9compiler - dragfullwindows can be 2. | |
| - Issue #5037: Proxy the __bytes__ special method instead to __bytes__ instead | |
| of __str__. | |
| - Issue #7341: Close the internal file object in the TarFile constructor in case | |
| of an error. | |
| - Issue #7293: distutils.test_msvc9compiler is fixed to work on any fresh | |
| Windows box. Help provided by David Bolen. | |
| - Issue #2054: ftplib now provides an FTP_TLS class to do secure FTP using TLS | |
| or SSL. Patch by Giampaolo Rodola'. | |
| - Issue #7328: pydoc no longer corrupts sys.path when run with the '-m' switch. | |
| - Issue #4969: The mimetypes module now reads the MIME database from the | |
| registry under Windows. Patch by Gabriel Genellina. | |
| - Issue #6816: runpy now provides a run_path function that allows Python code to | |
| execute file paths that refer to source or compiled Python files as well as | |
| zipfiles, directories and other valid sys.path entries that contain a | |
| __main__.py file. This allows applications that run other Python scripts to | |
| support the same flexibility as the CPython command line itself. | |
| - Issue #7318: multiprocessing now uses a timeout when it fails to establish a | |
| connection with another process, rather than looping endlessly. The default | |
| timeout is 20 seconds, which should be amply sufficient for local connections. | |
| - Issue #7197: Allow unittest.TextTestRunner objects to be pickled and | |
| unpickled. This fixes crashes under Windows when trying to run | |
| test_multiprocessing in verbose mode. | |
| - Issue #7893: ``unittest.TextTestResult`` is made public and a ``resultclass`` | |
| argument added to the TextTestRunner constructor allowing a different result | |
| class to be used without having to subclass. | |
| - Issue #7588: ``unittest.TextTestResult.getDescription`` now includes the test | |
| name in failure reports even if the test has a docstring. | |
| - Issue #3001: Add a C implementation of recursive locks which is used by | |
| default when instantiating a `threading.RLock` object. This makes recursive | |
| locks as fast as regular non-recursive locks (previously, they were slower by | |
| 10x to 15x). | |
| - Issue #7282: Fix a memory leak when an RLock was used in a thread other than | |
| those started through `threading.Thread` (for example, using | |
| `_thread.start_new_thread()`). | |
| - Issue #7187: Importlib would not silence the IOError raised when trying to | |
| write new bytecode when it was made read-only. | |
| - Issue #7264: Fix a possible deadlock when deallocating thread-local objects | |
| which are part of a reference cycle. | |
| - Issue #7211: Allow 64-bit values for the `ident` and `data` fields of kevent | |
| objects on 64-bit systems. Patch by Michael Broghton. | |
| - Issue #6896: mailbox.Maildir now invalidates its internal cache each time a | |
| modification is done through it. This fixes inconsistencies and test failures | |
| on systems with slightly bogus mtime behaviour. | |
| - Issue #7246 & Issue #7208: getpass now properly flushes input before reading | |
| from stdin so that existing input does not confuse it and lead to incorrect | |
| entry or an IOError. It also properly flushes it afterwards to avoid the | |
| terminal echoing the input afterwards on OSes such as Solaris. | |
| - Issue #7233: Fix a number of two-argument Decimal methods to make sure that | |
| they accept an int or long as the second argument. Also fix buggy handling of | |
| large arguments (those with coefficient longer than the current precision) in | |
| shift and rotate. | |
| - Issue #4750: Store the basename of the original filename in the gzip FNAME | |
| header as required by RFC 1952. | |
| - Issue #1180: Added a new global option to ignore ~/.pydistutils.cfg in | |
| Distutils. | |
| - Issue #7218: Fix test_site for win32, the directory comparison was done with | |
| an uppercase. | |
| - Issue #7205: Fix a possible deadlock when using a BZ2File object from | |
| several threads at once. | |
| - Issue #7077: logging: SysLogHandler now treats Unicode as per RFC 5424. | |
| - Issue #7099: Decimal.is_normal now returns True for numbers with exponent | |
| larger than emax. | |
| - Issue #7080: locale.strxfrm() raises a MemoryError on 64-bit non-Windows | |
| platforms, and assorted locale fixes by Derk Drukker. | |
| - Issue #5833: Fix extra space character in readline completion with the GNU | |
| readline library version 6.0. | |
| - Issue #6894: Fixed the issue urllib2 doesn't respect "no_proxy" environment. | |
| - Issue #7086: Added TCP support to SysLogHandler, and tidied up some | |
| anachronisms in the code which were a relic of 1.5.2 compatibility. | |
| - Issue #7082: When falling back to the MIME 'name' parameter, the correct place | |
| to look for it is the Content-Type header. | |
| - Make tokenize.detect_coding() normalize utf-8 and iso-8859-1 variants like the | |
| builtin tokenizer. | |
| - Issue #7048: Force Decimal.logb to round its result when that result is too | |
| large to fit in the current precision. | |
| - Issue #6236, #6348: Fix various failures in the I/O library under AIX and | |
| other platforms, when using a non-gcc compiler. Patch by Derk Drukker. | |
| - Issue #4606: Passing 'None' if ctypes argtype is set to POINTER(...) does now | |
| always result in NULL. | |
| - Issue #5042: Structure sub-subclass does now initialize correctly with base | |
| class positional arguments. | |
| - Issue #6882: Import uuid creates zombies processes. | |
| - Issue #6635: Fix profiler printing usage message. | |
| - Issue #6856: Add a filter keyword argument to TarFile.add(). | |
| - Issue #6888: pdb's alias command was broken when no arguments were given. | |
| - Issue #6857: Default format() alignment should be '>' for Decimal instances. | |
| - Issue #6795: int(Decimal('nan')) now raises ValueError instead of returning | |
| NaN or raising InvalidContext. Also, fix infinite recursion in | |
| long(Decimal('nan')). | |
| - Issue #6850: Fix bug in Decimal._parse_format_specifier for formats with no | |
| type specifier. | |
| - Issue #6239: ctypes.c_char_p return value must return bytes. | |
| - Issue #6838: Use a list to accumulate the value instead of repeatedly | |
| concatenating strings in http.client's HTTPResponse._read_chunked providing a | |
| significant speed increase when downloading large files servend with a | |
| Transfer-Encoding of 'chunked'. | |
| - Trying to import a submodule from a module that is not a package, ImportError | |
| should be raised, not AttributeError. | |
| - When the globals past to importlib.__import__() has __package__ set to None, | |
| fall back to computing what __package__ should be instead of giving up. | |
| - Raise a TypeError when the name of a module to be imported for | |
| importlib.__import__ is not a string (was raising an AttributeError before). | |
| - Allow the fromlist passed into importlib.__import__ to be any iterable. | |
| - Have importlib raise ImportError if None is found in sys.modules. | |
| - Issue #6054: Do not normalize stored pathnames in tarfile. | |
| - Issue #6794: Fix Decimal.compare_total and Decimal.compare_total_mag: NaN | |
| payloads are now ordered by integer value rather than lexicographically. | |
| - Issue #1356969: Add missing info methods in tix.HList. | |
| - Issue #1522587: New constants and methods for the tix.Grid widget. | |
| - Issue #1250469: Fix the return value of tix.PanedWindow.panes. | |
| - Issue #1119673: Do not override tkinter.Text methods when creating a | |
| ScrolledText. | |
| - Issue #6665: Fix fnmatch to properly match filenames with newlines in them. | |
| - Issue #1135: Add the XView and YView mix-ins to avoid duplicating the xview* | |
| and yview* methods. | |
| - Issue #6629: Fix a data corruption issue in the new I/O library, which could | |
| occur when writing to a BufferedRandom object (e.g. a file opened in "rb+" or | |
| "wb+" mode) after having buffered a certain amount of data for reading. This | |
| bug was not present in the pure Python implementation. | |
| - Issue #6622: Fix "local variable 'secret' referenced before assignment" bug in | |
| POP3.apop. | |
| - Issue #2715: Remove remnants of Carbon.File from binhex module. | |
| - Issue #6595: The Decimal constructor now allows arbitrary Unicode decimal | |
| digits in input, as recommended by the standard. Previously it was restricted | |
| to accepting [0-9]. | |
| - Issue #6106: telnetlib.Telnet.process_rawq doesn't handle default WILL/WONT | |
| DO/DONT correctly. | |
| - Issue #1424152: Fix for http.client, urllib.request to support SSL while | |
| working through proxy. Original patch by Christopher Li, changes made by | |
| Senthil Kumaran. | |
| - Add importlib.abc.ExecutionLoader to represent the PEP 302 protocol for | |
| loaders that allow for modules to be executed. Both importlib.abc.PyLoader and | |
| PyPycLoader inherit from this class and provide implementations in relation to | |
| other methods required by the ABCs. | |
| - importlib.abc.PyLoader did not inherit from importlib.abc.ResourceLoader like | |
| the documentation said it did even though the code in PyLoader relied on the | |
| abstract method required by ResourceLoader. | |
| - Issue #6431: Make Fraction type return NotImplemented when it doesn't know how | |
| to handle a comparison without loss of precision. Also add correct handling | |
| of infinities and nans for comparisons with float. | |
| - Issue #6415: Fixed warnings.warn segfault on bad formatted string. | |
| - Issue #6358: The exit status of a command started with os.popen() was reported | |
| differently than it did with python 2.x. | |
| - Issue #6323: The pdb debugger did not exit when running a script with a syntax | |
| error. | |
| - Issue #3392: The subprocess communicate() method no longer fails in select() | |
| when file descriptors are large; communicate() now uses poll() when possible. | |
| - Issue #6369: Fix an RLE decompression bug in the binhex module. | |
| - Issue #6344: Fixed a crash of mmap.read() when passed a negative argument. | |
| - The deprecated function string.maketrans has been removed. | |
| - Issue #4005: Fixed a crash of pydoc when there was a zip file present in | |
| sys.path. | |
| - Issue #6218: io.StringIO and io.BytesIO instances are now picklable. | |
| - The os.get_exec_path() function to return the list of directories that will be | |
| searched for an executable when launching a subprocess was added. | |
| - Issue #7481: When a threading.Thread failed to start it would leave the | |
| instance stuck in initial state and present in threading.enumerate(). | |
| - Issue #1068268: The subprocess module now handles EINTR in internal os.waitpid | |
| and os.read system calls where appropriate. | |
| - Issue #6729: Added ctypes.c_ssize_t to represent ssize_t. | |
| - Issue #6247: The argparse module has been added to the standard library. | |
| - Issue #8235: _socket: Add the constant ``SO_SETFIB``. SO_SETFIB is a socket | |
| option available on FreeBSD 7.1 and newer. | |
| - Issue #9315: Fix for the trace module to record correct class name | |
| for tracing methods. | |
| Extension Modules | |
| ----------------- | |
| - Issue #9959: Tweak formula used for computing math.log of an integer, | |
| making it marginally more accurate for exact powers of 2. | |
| - Issue #9422: Fix memory leak when re-initializing a struct.Struct object. | |
| - Issue #7900: The getgroups(2) system call on MacOSX behaves rather oddly | |
| compared to other unix systems. In particular, os.getgroups() does not reflect | |
| any changes made using os.setgroups() but basically always returns the same | |
| information as the id command. os.getgroups() can now return more than 16 | |
| groups on MacOSX. | |
| - Issue #6095: Make directory argument to os.listdir optional. | |
| - Issue #9277: Fix bug in struct.pack for bools in standard mode (e.g., | |
| struct.pack('>?')): if conversion to bool raised an exception then that | |
| exception wasn't properly propagated on machines where char is unsigned. | |
| - Issue #5180: Fixed a bug that prevented loading 2.x pickles in 3.x python when | |
| they contain instances of old-style classes. | |
| - Issue #9165: Add new functions math.isfinite and cmath.isfinite, to accompany | |
| existing isinf and isnan functions. | |
| - Issue #1578269: Implement os.symlink for Windows 6.0+. Patch by Jason | |
| R. Coombs. | |
| - In struct.pack, correctly propagate exceptions from computing the truth of an | |
| object in the '?' format. | |
| - Issue #9000: datetime.timezone objects now have eval-friendly repr. | |
| - In the math module, correctly lookup __trunc__, __ceil__, and __floor__ as | |
| special methods. | |
| - Issue #9005: Prevent utctimetuple() from producing year 0 or year 10,000. | |
| Prior to this change, timezone adjustment in utctimetuple() could produce | |
| tm_year value of 0 or 10,000. Now an OverflowError is raised in these edge | |
| cases. | |
| - Issue #6641: The ``datetime.strptime`` method now supports the ``%z`` | |
| directive. When the ``%z`` directive is present in the format string, an | |
| aware ``datetime`` object is returned with ``tzinfo`` bound to a | |
| ``datetime.timezone`` instance constructed from the parsed offset. If both | |
| ``%z`` and ``%Z`` are present, the data in ``%Z`` field is used for timezone | |
| name, but ``%Z`` data without ``%z`` is discarded. | |
| - Issue #5094: The ``datetime`` module now has a simple concrete class | |
| implementing ``datetime.tzinfo`` interface. Instances of the new class, | |
| ``datetime.timezone``, return fixed name and UTC offset from their | |
| ``tzname(dt)`` and ``utcoffset(dt)`` methods. The ``dst(dt)`` method always | |
| returns ``None``. A class attribute, ``utc`` contains an instance | |
| representing the UTC timezone. Original patch by Rafe Kaplan. | |
| - Issue #8973: Add __all__ to struct module; this ensures that help(struct) | |
| includes documentation for the struct.Struct class. | |
| - Issue #3129: Trailing digits in struct format string are no longer ignored. | |
| For example, "1" or "ilib123" are now invalid formats and cause | |
| ``struct.error`` to be raised. Patch by Caleb Deveraux. | |
| - Issue #7384: If the system readline library is linked against ncurses, the | |
| curses module must be linked against ncurses as well. Otherwise it is not safe | |
| to load both the readline and curses modules in an application. | |
| - Issue #2810: Fix cases where the Windows registry API returns ERROR_MORE_DATA, | |
| requiring a re-try in order to get the complete result. | |
| - Issue #8692: Optimize math.factorial: replace the previous naive algorithm | |
| with an improved 'binary-split' algorithm that uses fewer multiplications and | |
| allows many of the multiplications to be performed using plain C integer | |
| arithmetic instead of PyLong arithmetic. Also uses a lookup table for small | |
| arguments. | |
| - Issue #8674: Fixed a number of incorrect or undefined-behaviour-inducing | |
| overflow checks in the audioop module. | |
| - Issue #8644: The accuracy of td.total_seconds() has been improved (by | |
| calculating with integer arithmetic instead of float arithmetic internally): | |
| the result is now always correctly rounded, and is equivalent to ``td / | |
| timedelta(seconds=1)``. | |
| - Issue #2706: Allow division of a timedelta by another timedelta: timedelta / | |
| timedelta, timedelta % timedelta, timedelta // timedelta and divmod(timedelta, | |
| timedelta) are all supported. | |
| - Issue #8314: Fix unsigned long long bug in libffi on Sparc v8. | |
| - Issue #8300: When passing a non-integer argument to struct.pack with any | |
| integer format code, struct.pack first attempts to convert the non-integer | |
| using its __index__ method. If that method is non-existent or raises | |
| TypeError it goes on to try the __int__ method, as described below. | |
| - Issue #8142: Update libffi to the 3.0.9 release. | |
| - Issue #6949: Allow the _dbm extension to be built with db 4.8.x. | |
| - Issue #6544: Fix a reference leak in the kqueue implementation's error | |
| handling. | |
| - Stop providing crtassem.h symbols when compiling with Visual Studio 2010, as | |
| msvcr100.dll is not a platform assembly anymore. | |
| - Issue #6508: Add posix.{getresuid,getresgid,setresuid,setresgid}. | |
| - Issue #7078: Set struct.__doc__ from _struct.__doc__. | |
| - Issue #3366: Add erf, erfc, expm1, gamma, lgamma functions to math module. | |
| - Issue #6877: It is now possible to link the readline extension to the libedit | |
| readline emulation on OSX 10.5 or later. | |
| - Issue #6848: Fix curses module build failure on OS X 10.6. | |
| - Fix a segfault that could be triggered by expat with specially formed input. | |
| - Issue #6561: '\d' in a regex now matches only characters with Unicode category | |
| 'Nd' (Number, Decimal Digit). Previously it also matched characters with | |
| category 'No'. | |
| - Issue #4509: Array objects are no longer modified after an operation failing | |
| due to the resize restriction in-place when the object has exported buffers. | |
| - Issue #2389: Array objects are now pickled in a portable manner. | |
| - Expat: Fix DoS via XML document with malformed UTF-8 sequences | |
| (CVE_2009_3560). | |
| - Issue #7242: On Solaris 9 and earlier calling os.fork() from within a thread | |
| could raise an incorrect RuntimeError about not holding the import lock. The | |
| import lock is now reinitialized after fork. | |
| - Issue #7999: os.setreuid() and os.setregid() would refuse to accept a -1 | |
| parameter on some platforms such as OS X. | |
| - Build the ossaudio extension on GNU/kFreeBSD. | |
| - Issue #7347: winreg: Add CreateKeyEx and DeleteKeyEx, as well as fix a bug in | |
| the return value of QueryReflectionKey. | |
| - Issue #7567: PyCurses_setupterm: Don't call ``setupterm`` twice. | |
| Build | |
| ----- | |
| - Use OpenSSL 1.0.0a on Windows. | |
| - Issue #9280: Make sharedinstall depend on sharedmods. | |
| - Issue #9189: Make a user-specified CFLAGS, CPPFLAGS, or LDFLAGS setting | |
| override the configure and makefile defaults, without deleting options the | |
| user didn't intend to override. Developers should no longer need to specify | |
| OPT or EXTRA_CFLAGS, although those variables are still present for | |
| backward-compatibility. | |
| - Issue #8854: Fix finding Visual Studio 2008 on Windows x64. | |
| - Issue #1759169, #8864: Drop _XOPEN_SOURCE on Solaris, define it for | |
| multiprocessing only. | |
| - Issue #8625: Turn off optimization in --with-pydebug builds with gcc. | |
| (Optimization was unintentionally turned on in gcc --with-pydebug builds as a | |
| result of the issue #1628484 fix, combined with autoconf's strange choice of | |
| default CFLAGS produced by AC_PROG_CC for gcc.) | |
| - Issue #3646: It is now easily possible to install a Python framework into your | |
| home directory on MacOSX, see Mac/README for more information. | |
| - Issue #3928: os.mknod() now available in Solaris, also. | |
| - Issue #3326: Build Python without -fno-strict-aliasing when the gcc does not | |
| give false warnings. | |
| - Issue #1628484: The Makefile doesn't ignore the CFLAGS environment variable | |
| anymore. It also forwards the LDFLAGS settings to the linker when building a | |
| shared library. | |
| - Issue #6716: Quote -x arguments of compileall in MSI installer. Exclude 2to3 | |
| tests from compileall. | |
| - Issue #3920, #7903: Define _BSD_SOURCE on OpenBSD 4.4 through 4.9. | |
| - Issue #7632: When Py_USING_MEMORY_DEBUGGER is defined, disable the private | |
| memory allocation scheme in dtoa.c and use PyMem_Malloc and PyMem_Free | |
| instead. Also disable caching of powers of 5. | |
| - Issue #6491: Allow --with-dbmliborder to specify that no dbms will be built. | |
| - Issue #6943: Use pkg-config to find the libffi headers when the | |
| --with-system-ffi flag is used. | |
| - Issue #7609: Add a --with-system-expat option that causes the system's expat | |
| library to be used for the pyexpat module instead of the one included with | |
| Python. | |
| - Issue #7589: Only build the nis module when the correct header files are | |
| found. | |
| - Switch to OpenSSL 0.9.8l and sqlite 3.6.21 on Windows. | |
| - Issue #5792: Extend the short float repr support to x86 systems using | |
| icc or suncc. | |
| - Issue #6603: Change READ_TIMESTAMP macro in ceval.c so that it compiles | |
| correctly under gcc on x86-64. This fixes a reported problem with the | |
| --with-tsc build on x86-64. | |
| - Issue #6802: Fix build issues on MacOSX 10.6. | |
| - Issue #6244: Allow detect_tkinter to look for Tcl/Tk 8.6. | |
| - Issue #4601: 'make install' did not set the appropriate permissions on | |
| directories. | |
| - Issue #5390: Add uninstall icon independent of whether file extensions are | |
| installed. | |
| - Issue #7541: When using ``python-config`` with a framework install the | |
| compiler might use the wrong library. | |
| - python-config now supports multiple options on the same command line. | |
| - Issue #8509: Fix quoting in help strings and code snippets in configure.in. | |
| - Issue #8510: Update to autoconf2.65. | |
| Documentation | |
| ------------- | |
| - Issue #9817: Add expat COPYING file; add expat, libffi and expat licenses | |
| to Doc/license.rst. | |
| - Issue #9524: Document that two CTRL* signals are meant for use only | |
| with os.kill. | |
| - Issue #9255: Document that the 'test' package is meant for internal Python use | |
| only. | |
| - A small WSGI server was added as Tools/scripts/serve.py, and is used to | |
| implement a local documentation server via 'make serve' in the doc directory. | |
| - Updating `Using Python` documentation to include description of CPython's -J | |
| and -X options. | |
| - Document that importing a module that has None in sys.modules triggers an | |
| ImportError. | |
| - Issue #6556: Fixed the Distutils configuration files location explanation for | |
| Windows. | |
| - Update python manual page (options -B, -O0, -s, environment variables | |
| PYTHONDONTWRITEBYTECODE, PYTHONNOUSERSITE). | |
| - Issue #8909: Added the size of the bitmap used in the installer created by | |
| distutils' bdist_wininst. Patch by Anatoly Techtonik. | |
| Tests | |
| ----- | |
| - Issue #9251: test_threaded_import didn't fail when run through regrtest if the | |
| import lock was disabled. | |
| - Issue #8605: Skip test_gdb if Python is compiled with optimizations. | |
| - Issue #7449: Skip test_socketserver if threading support is disabled. | |
| - Issue #8672: Add a zlib test ensuring that an incomplete stream can be handled | |
| by a decompressor object without errors (it returns incomplete uncompressed | |
| data). | |
| - Issue #8533: regrtest uses backslashreplace error handler for stdout to avoid | |
| UnicodeEncodeError (write non-ASCII character to stdout using ASCII encoding). | |
| - Issue #8576: Remove use of find_unused_port() in test_smtplib and | |
| test_multiprocessing. Patch by Paul Moore. | |
| - Issue #7449: Fix many tests to support Python compiled without thread | |
| support. Patches written by Jerry Seutter. | |
| - Issue #8108: test_ftplib's non-blocking SSL server now has proper handling of | |
| SSL shutdowns. | |
| - Issues #8279, #8330, #8437, #8480, #8495: Fix test_gdb failures, patch written | |
| by Dave Malcolm. | |
| - Issue #3864: Skip three test_signal tests on freebsd6 because they fail if any | |
| thread was previously started, most likely due to a platform bug. | |
| - Issue #8193: Fix test_zlib failure with zlib 1.2.4. | |
| - Issue #8248: Add some tests for the bool type. Patch by Gregory Nofi. | |
| - Issue #8263: Now regrtest.py will report a failure if it receives a | |
| KeyboardInterrupt (SIGINT). | |
| - Issue #8180 and #8207: Fix test_pep277 on OS X and add more tests for special | |
| Unicode normalization cases. | |
| - Issue #7783: test.support.open_urlresource invalidates the outdated files from | |
| the local cache. | |
| - Issue #7849: Now the utility ``check_warnings`` verifies if the warnings are | |
| effectively raised. | |
| - The four path modules (genericpath, macpath, ntpath, posixpath) share a common | |
| TestCase for some tests: test_genericpath.CommonTest. | |
| - Print platform information when running the whole test suite, or using the | |
| --verbose flag. | |
| - Issue #767675: enable test_pep277 on POSIX platforms with Unicode-friendly | |
| filesystem encoding. | |
| - Issue #6292: for the moment at least, the test suite runs cleanly if python is | |
| run with the -OO flag. Tests requiring docstrings are skipped. | |
| - Issue #7712: test.support gained a new `temp_cwd` context manager which is now | |
| also used by regrtest to run all the tests in a temporary directory. The | |
| original CWD is saved in `support.SAVEDCWD`. Thanks to Florent Xicluna who | |
| helped with the patch. | |
| - Issue #7924: Fix an intermittent 'XXX undetected error' failure in test_capi | |
| (only seen so far on platforms where the curses module wasn't built), due to | |
| an uncleared exception. | |
| - Issue #7728: test_timeout was changed to use support.bind_port instead of a | |
| hard coded port. | |
| - Issue #7376: Instead of running a self-test (which was failing) when called | |
| with no arguments, doctest.py now gives a usage message. | |
| - Issue #7396: fix regrtest -s, which was broken by the -j enhancement. | |
| - Issue #7498: test_multiprocessing now uses test.support.find_unused_port | |
| instead of a hardcoded port number in test_rapid_restart. | |
| - Issue #7431: Use TESTFN in test_linecache instead of trying to create a file | |
| in the Lib/test directory, which might be read-only for the user running the | |
| tests. | |
| - Issue #7324: Add a sanity check to regrtest argument parsing to catch the case | |
| of an option with no handler. | |
| - Issue #7312: Add a -F flag to run the selected tests in a loop until a test | |
| fails. Can be combined with -j. | |
| - Issue #6551: test_zipimport could import and then destroy some modules of the | |
| encodings package, which would make other tests fail further down the road | |
| because the internally cached encoders and decoders would point to empty | |
| global variables. | |
| - Issue #7295: Do not use a hardcoded file name in test_tarfile. | |
| - Issue #7270: Add some dedicated unit tests for multi-thread synchronization | |
| primitives such as Lock, RLock, Condition, Event and Semaphore. | |
| - Issue #7248 (part 2): Use a unique temporary directory for importlib source | |
| tests instead of tempfile.tempdir. This prevents the tests from sharing state | |
| between concurrent executions on the same system. | |
| - Issue #7248: In importlib.test.source.util a try/finally block did not make | |
| sure that some referenced objects actually were created in the block before | |
| calling methods on the object. | |
| - Issue #7222: Make thread "reaping" more reliable so that reference | |
| leak-chasing test runs give sensible results. The previous method of reaping | |
| threads could return successfully while some Thread objects were still | |
| referenced. This also introduces a new private function: | |
| ``_thread._count()``. | |
| - Issue #7151: Fixed regrtest -j so that output to stderr from a test no longer | |
| runs the risk of causing the worker thread to fail. | |
| - Issue #7055: test___all__ now greedily detects all modules which have an | |
| __all__ attribute, rather than using a hardcoded and incomplete list. | |
| - Issue #7058: Added save/restore for things like sys.argv and cwd to | |
| runtest_inner in regrtest, with warnings if the called test modifies them, and | |
| a new section in the summary report at the end. | |
| - Issue #7042: Fix test_signal (test_itimer_virtual) failure on OS X 10.6. | |
| - Fixed tests in importlib.test.source.test_abc_loader that were masking the | |
| proper exceptions that should be raised for missing or improper code object | |
| bytecode. | |
| - Removed importlib's custom test discovery code and switched to | |
| unittest.TestLoader.discover(). | |
| Tools/Demos | |
| ----------- | |
| - Issue #5464, #8974: Implement plural forms in msgfmt.py. | |
| - iobench (a file I/O benchmark) and ccbench (a concurrency benchmark) were | |
| added to the `Tools/` directory. They were previously living in the sandbox. | |
| What's New in Python 3.1? | |
| ========================= | |
| *Release date: 27-June-2009* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #6334: Fix bug in range length calculation for ranges with | |
| large arguments. | |
| - Issue #6329: Fixed iteration for memoryview objects (it was being blocked | |
| because it wasn't recognized as a sequence). | |
| Library | |
| ------- | |
| - Issue #6126: Fixed pdb command-line usage. | |
| - Issue #6314: logging: performs extra checks on the "level" argument. | |
| - Issue #6274: Fixed possible file descriptors leak in subprocess.py | |
| - Accessing io.StringIO.buffer now raises an AttributeError instead of | |
| io.UnsupportedOperation. | |
| - Issue #6271: mmap tried to close invalid file handle (-1) when anonymous. | |
| (On Unix) | |
| - Issue #1202: zipfile module would cause a struct.error when attempting to | |
| store files with a CRC32 > 2**31-1. | |
| Extension Modules | |
| ----------------- | |
| - Issue #5590: Remove unused global variable in pyexpat extension. | |
| What's New in Python 3.1 Release Candidate 2? | |
| ============================================= | |
| *Release date: 13-June-2009* | |
| Core and Builtins | |
| ----------------- | |
| - Fixed SystemError triggered by "range([], 1, -1)". | |
| - Issue #5924: On Windows, a large PYTHONPATH environment variable | |
| (more than 255 characters) would be completely ignored. | |
| - Issue #4547: When debugging a very large function, it was not always | |
| possible to update the lineno attribute of the current frame. | |
| - Issue #5330: C functions called with keyword arguments were not reported by | |
| the various profiling modules (profile, cProfile). Patch by Hagen Fürstenau. | |
| Library | |
| ------- | |
| - Issue #6438: Fixed distutils.cygwinccompiler.get_versions : the regular | |
| expression string pattern was trying to match against a bytes returned by | |
| Popen. Tested under win32 to build the py-postgresql project. | |
| - Issue #6258: Support AMD64 in bdist_msi. | |
| - Issue #6195: fixed doctest to no longer try to read 'source' data from | |
| binary files. | |
| - Issue #5262: Fixed bug in next rollover time computation in | |
| TimedRotatingFileHandler. | |
| - Issue #6217: The C implementation of io.TextIOWrapper didn't include the | |
| errors property. Additionally, the errors and encoding properties of StringIO | |
| are always None now. | |
| - Issue #6137: The pickle module now translates module names when loading | |
| or dumping pickles with a 2.x-compatible protocol, in order to make data | |
| sharing and migration easier. This behaviour can be disabled using the | |
| new `fix_imports` optional argument. | |
| - Removed the ipaddr module. | |
| - Issue #3613: base64.{encode,decode}string are now called | |
| base64.{encode,decode}bytes which reflects what type they accept and return. | |
| The old names are still there as deprecated aliases. | |
| - Issue #5767: Remove sgmlop support from xmlrpc.client. | |
| - Issue #6150: Fix test_unicode on wide-unicode builds. | |
| - Issue #6149: Fix initialization of WeakValueDictionary objects from non-empty | |
| parameters. | |
| Windows | |
| ------- | |
| - Issue #6221: Delete test registry key before running the test. | |
| - Issue #6158: Package Sine-1000Hz-300ms.aif in MSI file. | |
| C-API | |
| ----- | |
| - Issue #5735: Python compiled with --with-pydebug should throw an | |
| ImportError when trying to import modules compiled without | |
| --with-pydebug, and vice-versa. | |
| Build | |
| ----- | |
| - Issue #6154: Make sure the intl library is added to LIBS if needed. Also | |
| added LIBS to OS X framework builds. | |
| - Issue #5809: Specifying both --enable-framework and --enable-shared is | |
| an error. Configure now explicitly tells you about this. | |
| What's New in Python 3.1 release candidate 1? | |
| ============================================= | |
| *Release date: 2009-05-30* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #6097: Escape UTF-8 surrogates resulting from mbstocs conversion | |
| of the command line. | |
| - Issue #6012: Add cleanup support to O& argument parsing. | |
| - Issue #6089: Fixed str.format with certain invalid field specifiers | |
| that would raise SystemError. | |
| - Issue #5982: staticmethod and classmethod now expose the wrapped | |
| function with __func__. | |
| - Added support for multiple context managers in the same with-statement. | |
| Deprecated contextlib.nested() which is no longer needed. | |
| - Issue #5829: complex("1e500") no longer raises OverflowError. This | |
| makes it consistent with float("1e500") and interpretation of real | |
| and imaginary literals. | |
| - Issue #3527: Removed Py_WIN_WIDE_FILENAMES which is not used any more. | |
| - Issue #5994: the marshal module now has docstrings. | |
| - Issue #5981: Fix three minor inf/nan issues in float.fromhex: | |
| (1) inf and nan strings with trailing whitespace were incorrectly | |
| rejected; (2) parsing of strings representing infinities and nans | |
| was locale aware; and (3) the interpretation of fromhex('-nan') | |
| didn't match that of float('-nan'). | |
| Library | |
| ------- | |
| - Issue #4859: Implement PEP 383 for pwd, spwd, and grp. | |
| - smtplib 'login' and 'cram-md5' login are also fixed (see Issue #5259). | |
| - Issue #6121: pydoc now ignores leading and trailing spaces in the | |
| argument to the 'help' function. | |
| - Issue #6118: urllib.parse.quote_plus ignored the encoding and errors | |
| arguments for strings with a space in them. | |
| - collections.namedtuple() was not working with the following field | |
| names: cls, self, tuple, itemgetter, and property. | |
| - In unittest, using a skipping decorator on a class is now equivalent to | |
| skipping every test on the class. The ClassTestSuite class has been removed. | |
| - Issue #6050: Don't fail extracting a directory from a zipfile if | |
| the directory already exists. | |
| - Issue #1309352: fcntl now converts its third arguments to a C `long` rather | |
| than an int, which makes some operations possible under 64-bit Linux (e.g. | |
| DN_MULTISHOT with F_NOTIFY). | |
| - Issue #5761: Add the name of the underlying file to the repr() of various | |
| IO objects. | |
| - Issue #5259: smtplib plain auth login no longer gives a traceback. Fix | |
| by Musashi Tamura, tests by Marcin Bachry. | |
| - Issue #1983: Fix functions taking or returning a process identifier to use | |
| the dedicated C type ``pid_t`` instead of a C ``int``. Some platforms have | |
| a process identifier type wider than the standard C integer type. | |
| - Issue #4066: smtplib.SMTP_SSL._get_socket now correctly returns the socket. | |
| Patch by Farhan Ahmad, test by Marcin Bachry. | |
| - Issue #2116: Weak references and weak dictionaries now support copy()ing and | |
| deepcopy()ing. | |
| - Issue #1655: Make imaplib IPv6-capable. Patch by Derek Morr. | |
| - Issue #5918: Fix a crash in the parser module. | |
| - Issue #1664: Make nntplib IPv6-capable. Patch by Derek Morr. | |
| - Issue #5006: Better handling of unicode byte-order marks (BOM) in the io | |
| library. This means, for example, that opening a UTF-16 text file in | |
| append mode doesn't add a BOM at the end of the file if the file isn't | |
| empty. | |
| - Issue #4050: inspect.findsource/getsource now raise an IOError if the 'source' | |
| file is a binary. Patch by Brodie Rao, tests by Daniel Diniz. This fix | |
| corrects a pydoc regression. | |
| - Issue #5955: aifc's close method did not close the file it wrapped, | |
| now it does. This also means getfp method now returns the real fp. | |
| Installation | |
| ------------ | |
| - Issue #6047: fullinstall has been removed because Python 3's executable will | |
| now be known as python3. | |
| - Lib/smtpd.py is no longer installed as a script. | |
| Extension Modules | |
| ----------------- | |
| - Issue #3061: Use wcsftime for time.strftime where available. | |
| - Issue #4873: Fix resource leaks in error cases of pwd and grp. | |
| - Issue #6093: Fix off-by-one error in locale.strxfrm. | |
| - The _functools and _locale modules are now built into the libpython shared | |
| library instead of as extension modules. | |
| Build | |
| ----- | |
| - Issue #3585: Add pkg-config support. It creates a python-2.7.pc file | |
| and a python3.pc symlink in the $(LIBDIR)/pkgconfig directory. Patch by | |
| Clinton Roy. | |
| Tests | |
| ----- | |
| - Issue #5442: Tests for importlib were not properly skipping case-sensitivity | |
| tests on darwin even when the OS was installed on a case-sensitive | |
| filesystem. Also fixed tests that should not be run when | |
| sys.dont_write_bytecode is true. | |
| What's New in Python 3.1 beta 1? | |
| ================================ | |
| *Release date: 2009-05-06* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #5914: Add new C API function PyOS_string_to_double, and | |
| deprecate PyOS_ascii_strtod and PyOS_ascii_atof. | |
| - Issue #3382: float.__format__, complex.__format__, and %-formatting | |
| no longer map 'F' to 'f'. Because of issue #5859 (below), this only | |
| affects nan -> NAN and inf -> INF. | |
| - Issue #5799: ntpath (ie, os.path on Windows) fully supports UNC pathnames | |
| in all operations, including splitdrive, split, etc. splitunc() now issues | |
| a PendingDeprecation warning. | |
| - Issue #5920: For float.__format__, change the behavior with the | |
| empty presentation type (that is, not one of 'e', 'f', 'g', or 'n') | |
| to be like 'g' but with at least one decimal point and with a | |
| default precision of 12. Previously, the behavior the same but with | |
| a default precision of 6. This more closely matches str(), and | |
| reduces surprises when adding alignment flags to the empty | |
| presentation type. This also affects the new complex.__format__ in | |
| the same way. | |
| - Implement PEP 383, Non-decodable Bytes in System Character Interfaces. | |
| - Issue #5890: in subclasses of 'property' the __doc__ attribute was | |
| shadowed by classtype's, even if it was None. property now | |
| inserts the __doc__ into the subclass instance __dict__. | |
| - Issue #4426: The UTF-7 decoder was too strict and didn't accept some legal | |
| sequences. Patch by Nick Barnes and Victor Stinner. | |
| - Issue #3672: Reject surrogates in utf-8 codec; add surrogatepass error handler. | |
| - Issue #5883: In the io module, the BufferedIOBase and TextIOBase ABCs have | |
| received a new method, detach(). detach() disconnects the underlying stream | |
| from the buffer or text IO and returns it. | |
| - Issue #5859: Remove switch from '%f' to '%g'-style formatting for | |
| floats with absolute value over 1e50. Also remove length | |
| restrictions for float formatting: '%.67f' % 12.34 and '%.120e' % | |
| 12.34 no longer raise an exception. | |
| - Issue #1588: Add complex.__format__. For example, | |
| format(complex(1, 2./3), '.5') now produces a sensible result. | |
| - Issue #5864: Fix empty format code formatting for floats so that it | |
| never gives more than the requested number of significant digits. | |
| - Issue #5793: Rationalize isdigit / isalpha / tolower, etc. Includes | |
| new Py_ISDIGIT / Py_ISALPHA / Py_TOLOWER, etc. in pctypes.h. | |
| - Issue #5835: Deprecate PyOS_ascii_formatd. | |
| - Issue #4971: Fix titlecase for characters that are their own | |
| titlecase, but not their own uppercase. | |
| - Issue #5283: Setting __class__ in __del__ caused a segfault. | |
| - Issue #5816: complex(repr(z)) now recovers z exactly, even when | |
| z involves nans, infs or negative zeros. | |
| - Issue #3166: Make int -> float conversions correctly rounded. | |
| - Issue #1869 (and many duplicates): make round(x, n) correctly | |
| rounded for a float x, by using the decimal <-> binary conversions | |
| from Python/dtoa.c. As a consequence, (e.g.) round(x, 2) now | |
| consistently agrees with format(x, '.2f'). | |
| - Issue #5787: object.__getattribute__(some_type, "__bases__") segfaulted on | |
| some builtin types. | |
| - Issue #5772: format(1e100, '<') produces '1e+100', not '1.0e+100'. | |
| - Issue #5515: str.format() type 'n' combined with commas and leading | |
| zeros no longer gives odd results with ints and floats. | |
| - Implement PEP 378, Format Specifier for Thousands Separator, for | |
| floats. | |
| - The str function switches to exponential notation at | |
| 1e11, not 1e12. This avoids printing 13 significant digits in | |
| situations where only 12 of them are correct. Example problem | |
| value: str(1e11 + 0.5). (This minor issue has existed in 2.x for a | |
| long time.) | |
| - Issue #1580: On most platforms, use a 'short' float repr: for a | |
| finite float x, repr(x) now outputs a string based on the shortest | |
| sequence of decimal digits that rounds to x. Previous behaviour was | |
| to output 17 significant digits and then strip trailing zeros. | |
| Another minor difference is that the new repr switches to | |
| exponential notation at 1e16 instead of the previous 1e17; this | |
| avoids misleading output in some cases. | |
| There's a new sys attribute sys.float_repr_style, which takes | |
| the value 'short' to indicate that we're using short float repr, | |
| and 'legacy' if the short float repr isn't available for one | |
| reason or another. | |
| The float repr change involves incorporating David Gay's 'perfect | |
| rounding' code into the Python core (it's in Python/dtoa.c). As a | |
| secondary consequence, all string-to-float and float-to-string | |
| conversions (including all float formatting operations) will be | |
| correctly rounded on these platforms. | |
| See issue #1580 discussions for details of platforms for which | |
| this change does not apply. | |
| - Issue #5759: float() didn't call __float__ on str subclasses. | |
| - The string.maketrans() function is deprecated; there is a new static method | |
| maketrans() on the bytes and bytearray classes. This removes confusion about | |
| the types string.maketrans() is supposed to work with, and mirrors the | |
| methods available on the str class. | |
| - Issue #2170: refactored xml.dom.minidom.normalize, increasing both | |
| its clarity and its speed. | |
| - Issue #1113244: Py_XINCREF, Py_DECREF, Py_XDECREF: Add ``do { ... } while (0)`` | |
| to avoid compiler warnings. | |
| - Issue #3739: The unicode-internal encoder now reports the number of characters | |
| consumed like any other encoder (instead of the number of bytes). | |
| Installation | |
| ------------ | |
| - Issue #5756: Install idle and pydoc with a 3 suffix. | |
| Library | |
| ------- | |
| - Issue #8203: Fix IDLE Credits dialog: view_file() uses its encoding argument. | |
| - Issue #5311: bdist_msi can now build packages that do not depend on a | |
| specific Python version. | |
| - Issue #5150: IDLE's format menu now has an option to strip trailing | |
| whitespace. | |
| - Issue #5940: distutils.command.build_clib.check_library_list was not doing | |
| the right type checkings anymore. | |
| - Issue #4875: On win32, ctypes.util.find_library does no longer | |
| return directories. | |
| - Issue #5142: Add the ability to skip modules while stepping to pdb. | |
| - Issue #1309567: Fix linecache behavior of stripping subdirectories when | |
| looking for files given by a relative filename. | |
| - Issue #5923: Update the ``turtle`` module to version 1.1, add two new | |
| turtle demos in Demo/turtle. | |
| - Issue #5692: In ``zipfile.Zipfile``, fix wrong path calculation when | |
| extracting a file to the root directory. | |
| - Issue #5913: os.listdir() should fail for empty path on windows. | |
| - Issue #5084: unpickling now interns the attribute names of pickled objects, | |
| saving memory and avoiding growth in size of subsequent pickles. Proposal | |
| and original patch by Jake McGuire. | |
| - The json module now works exclusively with str and not bytes. | |
| - Issue #3959: The ipaddr module has been added to the standard library. | |
| Contributed by Google. | |
| - Issue #3002: ``shutil.copyfile()`` and ``shutil.copytree()`` now raise an | |
| error when a named pipe is encountered, rather than blocking infinitely. | |
| - Issue #5857: tokenize.tokenize() now returns named tuples. | |
| - Issue #4305: ctypes should now build again on mipsel-linux-gnu | |
| - Issue #1734234: Massively speedup ``unicodedata.normalize()`` when the | |
| string is already in normalized form, by performing a quick check beforehand. | |
| Original patch by Rauli Ruohonen. | |
| - Issue #5853: calling a function of the mimetypes module from several threads | |
| at once could hit the recursion limit if the mimetypes database hadn't been | |
| initialized before. | |
| - Issue #5854: Updated __all__ to include some missing names and remove some | |
| names which should not be exported. | |
| - Issue #3102: All global symbols that the _ctypes extension defines | |
| are now prefixed with 'Py' or '_ctypes'. | |
| - Issue #5041: ctypes does now allow pickling wide character. | |
| - Issue #5812: For the two-argument form of the Fraction constructor, | |
| Fraction(m, n), m and n are permitted to be arbitrary Rational | |
| instances. | |
| - Issue #5812: Fraction('1e6') is valid: more generally, any string | |
| that's valid for float() is now valid for Fraction(), with the | |
| exception of strings representing NaNs and infinities. | |
| - Issue #5734: BufferedRWPair was poorly tested and had several glaring | |
| bugs. Patch by Brian Quinlan. | |
| - Issue #1161031: fix readwrite select flag handling: POLLPRI now | |
| results in a handle_expt_event call, not handle_read_event, and POLLERR | |
| and POLLNVAL now call handle_close, not handle_expt_event. Also, | |
| dispatcher now has an 'ignore_log_types' attribute for suppressing | |
| log messages, which is set to 'warning' by default. | |
| - Issue #2703: SimpleXMLRPCDispatcher.__init__: Provide default values for | |
| new arguments introduced in 2.5. | |
| - Issue #5828 (Invalid behavior of unicode.lower): Fixed bogus logic in | |
| makeunicodedata.py and regenerated the Unicode database (This fixes | |
| u'\u1d79'.lower() == '\x00'). | |
| Extension Modules | |
| ----------------- | |
| - Issue #5881: Remove old undocumented compatibility interfaces in hashlib and | |
| pwd. | |
| - Issue #5463: In struct module, remove deprecated float coercion | |
| for integer type codes: struct.pack('L', 0.3) should now raise | |
| an error. The _PY_STRUCT_FLOAT_COERCE constant has been removed. | |
| The version number has been bumped to 0.3. | |
| - Issue #5359: Re-add the Berkeley DB detection code to allow _dbm be built | |
| using Berkeley DB. | |
| Tests | |
| ----- | |
| - Issue #5354: New test support function import_fresh_module() makes | |
| it easy to import both normal and optimised versions of modules. | |
| test_heapq and test_warnings have been adjusted to use it, tests for | |
| other modules with both C and Python implementations in the stdlib | |
| can be adjusted to use it over time. | |
| - Issue #5837: Certain sequences of calls to set() and unset() for | |
| support.EnvironmentVarGuard objects restored the environment variables | |
| incorrectly on __exit__. | |
| C-API | |
| ----- | |
| - Issue #5630: A replacement PyCObject API, PyCapsule, has been added. | |
| What's New in Python 3.1 alpha 2? | |
| ================================= | |
| *Release date: 2009-4-4* | |
| Core and Builtins | |
| ----------------- | |
| - Implement PEP 378, Format Specifier for Thousands Separator, for | |
| integers. | |
| - Issue #5666: Py_BuildValue's 'c' code should create byte strings. | |
| - Issue #5499: The 'c' code for argument parsing functions now only accepts a | |
| byte, and the 'C' code only accepts a unicode character. | |
| - Fix a problem in PyErr_NormalizeException that leads to "undetected errors" | |
| when hitting the recursion limit under certain circumstances. | |
| - Issue #1665206: Remove the last eager import in _warnings.c and make it lazy. | |
| - Fix a segfault when running test_exceptions with coverage, caused by | |
| insufficient checks in accessors of Exception.__context__. | |
| - Issue #5604: non-ASCII characters in module name passed to | |
| imp.find_module() were converted to UTF-8 while the path is | |
| converted to the default filesystem encoding, causing nonsense. | |
| - Issue #5126: str.isprintable() returned False for space characters. | |
| - Issue #4865: On MacOSX /Library/Python/2.7/site-packages is added to | |
| the end sys.path, for compatibility with the system install of Python. | |
| - Issue #4688: Add a heuristic so that tuples and dicts containing only | |
| untrackable objects are not tracked by the garbage collector. This can | |
| reduce the size of collections and therefore the garbage collection overhead | |
| on long-running programs, depending on their particular use of datatypes. | |
| - Issue #5512: Rewrite PyLong long division algorithm (x_divrem) to | |
| improve its performance. Long divisions and remainder operations | |
| are now between 50% and 150% faster. | |
| - Issue #4258: Make it possible to use base 2**30 instead of base | |
| 2**15 for the internal representation of integers, for performance | |
| reasons. Base 2**30 is enabled by default on 64-bit machines. Add | |
| --enable-big-digits option to configure, which overrides the | |
| default. Add sys.int_info structseq to provide information about | |
| the internal format. | |
| - Issue #4474: PyUnicode_FromWideChar now converts characters outside | |
| the BMP to surrogate pairs, on systems with sizeof(wchar_t) == 4 | |
| and sizeof(Py_UNICODE) == 2. | |
| - Issue #5237: Allow auto-numbered fields in str.format(). For | |
| example: '{} {}'.format(1, 2) == '1 2'. | |
| - Issue #5392: when a very low recursion limit was set, the interpreter would | |
| abort with a fatal error after the recursion limit was hit twice. | |
| - Issue #3845: In PyRun_SimpleFileExFlags avoid invalid memory access with | |
| short file names. | |
| Library | |
| ------- | |
| - Issue #2625: added missing items() call to the for loop in | |
| mailbox.MH.get_message(). | |
| - Issue #5640: Fix _multibytecodec so that CJK codecs don't repeat | |
| error substitutions from non-strict codec error callbacks in | |
| incrementalencoder and StreamWriter. | |
| - Issue #5656: Fix the coverage reporting when running the test suite with | |
| the -T argument. | |
| - Issue #5647: MutableSet.__iand__() no longer mutates self during iteration. | |
| - Issue #5624: Fix the _winreg module name still used in several modules. | |
| - Issue #5628: Fix io.TextIOWrapper.read() with an unreadable buffer. | |
| - Issue #5619: Multiprocessing children disobey the debug flag and causes | |
| popups on windows buildbots. Patch applied to work around this issue. | |
| - Issue #5400: Added patch for multiprocessing on netbsd compilation/support | |
| - Issue #5387: Fixed mmap.move crash by integer overflow. | |
| - Issue #5261: Patch multiprocessing's semaphore.c to support context | |
| manager use: "with multiprocessing.Lock()" works now. | |
| - Issue #5236: Change time.strptime() to only take strings. Didn't work with | |
| bytes already but the failure was non-obvious. | |
| - Issue #5177: Multiprocessing's SocketListener class now uses | |
| socket.SO_REUSEADDR on all connections so that the user no longer needs | |
| to wait 120 seconds for the socket to expire. | |
| - Issue #5595: Fix UnboundedLocalError in ntpath.ismount(). | |
| - Issue #1174606: Calling read() without arguments of an unbounded file | |
| (typically /dev/zero under Unix) could crash the interpreter. | |
| - The max_buffer_size arguments of io.BufferedWriter, io.BufferedRWPair, and | |
| io.BufferedRandom have been deprecated for removal in Python 3.2. | |
| - Issue #5068: Fixed the tarfile._BZ2Proxy.read() method that would loop | |
| forever on incomplete input. That caused tarfile.open() to hang when used | |
| with mode 'r' or 'r:bz2' and a fileobj argument that contained no data or | |
| partial bzip2 compressed data. | |
| - Issue #2110: Add support for thousands separator and 'n' type | |
| specifier to Decimal.__format__ | |
| - Fix Decimal.__format__ bug that swapped the meanings of the '<' and | |
| '>' alignment characters. | |
| - The error detection code in FileIO.close() could fail to reflect the `errno` | |
| value, and report it as -1 instead. | |
| - Issue #5016: FileIO.seekable() could return False if the file position | |
| was negative when truncated to a C int. Patch by Victor Stinner. | |
| Extension Modules | |
| ----------------- | |
| - Issue #5391: mmap now deals exclusively with bytes. | |
| - Issue #5463: In struct module, remove deprecated overflow wrapping | |
| when packing an integer: struct.pack('=L', -1) now raises | |
| struct.error instead of returning b'\xff\xff\xff\xff'. The | |
| _PY_STRUCT_RANGE_CHECKING and _PY_STRUCT_OVERFLOW_MASKING constants | |
| have been removed from the struct module. | |
| What's New in Python 3.1 alpha 1 | |
| ================================ | |
| *Release date: 2009-03-07* | |
| Core and Builtins | |
| ----------------- | |
| - The io module has been reimplemented in C for speed. | |
| - Give dict views an informative __repr__. | |
| - Issue #5247: Improve error message when unknown format codes are | |
| used when using str.format() with str, int, and float arguments. | |
| - Issue #5249: time.strftime returned malformed string when format string | |
| contained non ascii character on windows. | |
| - Issue #4626: compile(), exec(), and eval() ignore the coding cookie if the | |
| source has already been decoded into str. | |
| - Issue #5186: Reduce hash collisions for objects with no __hash__ method by | |
| rotating the object pointer by 4 bits to the right. | |
| - Issue #4575: Fix Py_IS_INFINITY macro to work correctly on x87 FPUs: | |
| it now forces its argument to double before testing for infinity. | |
| - Issue #5137: Make len() correctly raise a TypeError when a __len__ method | |
| returns a non-number type. | |
| - Issue #5182: Removed memoryview.__str__. | |
| - Issue #1717: Removed builtin cmp() function, dropped tp_compare | |
| slot, the C API functions PyObject_Compare and PyUnicode_Compare and | |
| the type definition cmpfunc. The tp_compare slot has been renamed | |
| to tp_reserved, and is reserved for future usage. | |
| - Issue #1242657: the __len__() and __length_hint__() calls in several tools | |
| were suppressing all exceptions. These include list() and bytearray(). | |
| - Issue #4707: round(x, n) now returns an integer if x is an integer. | |
| Previously it returned a float. | |
| - Issue #4753: By enabling a configure option named '--with-computed-gotos' | |
| on compilers that support it (notably: gcc, SunPro, icc), the bytecode | |
| evaluation loop is compiled with a new dispatch mechanism which gives | |
| speedups of up to 20%, depending on the system, on various benchmarks. | |
| - Issue #4874: Most builtin decoders now reject unicode input. | |
| - Issue #4842: Don't allow trailing 'L' when constructing an integer | |
| from a string. | |
| - Issue #4991: os.fdopen now raises an OSError for invalid file descriptors. | |
| - Issue #4838: When a module is deallocated, free the memory backing the | |
| optional module state data. | |
| - Issue #4910: Rename nb_long slot to nb_reserved, and change its | |
| type to ``(void *)``. | |
| - Issue #4935: The overflow checking code in the expandtabs() method common | |
| to str, bytes and bytearray could be optimized away by the compiler, letting | |
| the interpreter segfault instead of raising an error. | |
| - Issue #3720: Fix a crash when an iterator modifies its class and removes its | |
| __next__ method. | |
| - Issue #4910: Builtin int() function and PyNumber_Long/PyNumber_Int API | |
| function no longer attempt to call the __long__ slot to convert an object | |
| to an integer. Only the __int__ and __trunc__ slots are examined. | |
| - Issue #4893: Use NT threading on CE. | |
| - Issue #4915: Port sysmodule to Windows CE. | |
| - Issue #4868: utf-8, utf-16 and latin1 decoding are now 2x to 4x faster. The | |
| common cases are optimized thanks to a dedicated fast path and a moderate | |
| amount of loop unrolling. | |
| - Issue #4074: Change the criteria for doing a full garbage collection (i.e. | |
| collecting the oldest generation) so that allocating lots of objects without | |
| destroying them does not show quadratic performance. Based on a proposal by | |
| Martin von Löwis at | |
| http://mail.python.org/pipermail/python-dev/2008-June/080579.html. | |
| - Issue #4604: Some objects of the I/O library could still be used after | |
| having been closed (for instance, a read() call could return some | |
| previously buffered data). Patch by Dmitry Vasiliev. | |
| - Issue #4705: Fix the -u ("unbuffered binary stdout and stderr") command-line | |
| flag to work properly. Furthermore, when specifying -u, the text stdout | |
| and stderr streams have line-by-line buffering enabled (the default being | |
| to buffer arbitrary chunks of data). | |
| - The internal table, _PyLong_DigitValue, is now an array of unsigned chars | |
| instead of ints (reducing its size from 4 to 8 times thereby reducing | |
| Python's overall memory). | |
| - Issue #1180193: When importing a module from a .pyc (or .pyo) file with | |
| an existing .py counterpart, override the co_filename attributes of all | |
| code objects if the original filename is obsolete (which can happen if the | |
| file has been renamed, moved, or if it is accessed through different paths). | |
| Patch by Ziga Seilnacht and Jean-Paul Calderone. | |
| - Issue #4580: Fix slicing of memoryviews when the item size is greater than | |
| one byte. Also fixes the meaning of len() so that it returns the number of | |
| items, rather than the size in bytes. | |
| - Issue #4075: Use OutputDebugStringW in Py_FatalError. | |
| - Issue #4747: When the terminal does not use utf-8, executing a script with | |
| non-ascii characters in its name could fail with a "SyntaxError: None" error. | |
| - Issue #4797: IOError.filename was not set when ``_fileio.FileIO`` failed | |
| to open file with a bytes filename on Windows. | |
| - Issue #3680: Reference cycles created through a dict, set or deque iterator | |
| did not get collected. | |
| - Issue #4701: PyObject_Hash now implicitly calls PyType_Ready on types | |
| where the tp_hash and tp_dict slots are both NULL. | |
| - Issue #4759: None is now allowed as the first argument of | |
| bytearray.translate(). It was always allowed for bytes.translate(). | |
| - Added test case to ensure attempts to read from a file opened for writing | |
| fail. | |
| - Issue #3106: Speedup some comparisons (str/str and int/int). | |
| - Issue #2183: Simplify and optimize bytecode for list, dict and set | |
| comprehensions. Original patch for list comprehensions by Neal Norwitz. | |
| - Issue #2467: gc.DEBUG_STATS reported invalid elapsed times. Also, always | |
| print elapsed times, not only when some objects are uncollectable / | |
| unreachable. Original patch by Neil Schemenauer. | |
| - Issue #3439: Add a bit_length method to int. | |
| - Issue #2173: When getting device encoding, check that return value of | |
| nl_langinfo is not the empty string. This was causing silent build | |
| failures on OS X. | |
| - Issue #4597: Fixed several opcodes that weren't always propagating | |
| exceptions. | |
| - Issue #4589: Fixed exception handling when the __exit__ function of a | |
| context manager returns a value that cannot be converted to a bool. | |
| - Issue #4445: Replace "sizeof(PyBytesObject)" with | |
| "offsetof(PyBytesObject, ob_sval) + 1" when allocating memory for | |
| bytes instances. On a typical machine this saves 3 bytes of memory | |
| (on average) per allocation of a bytes instance. | |
| - Issue #4533: File read operation was dreadfully slow due to a slowly | |
| growing read buffer. Fixed by using the same growth rate algorithm as | |
| Python 2.x. | |
| - Issue #4509: Various issues surrounding resize of bytearray objects to | |
| which there are buffer exports (e.g. memoryview instances). | |
| - Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()`` | |
| method on file objects with closefd=False. The file descriptor is still | |
| kept open but the file object behaves like a closed file. The ``FileIO`` | |
| object also got a new readonly attribute ``closefd``. | |
| - Issue #4569: Interpreter crash when mutating a memoryview with an item size | |
| larger than 1. | |
| - Issue #4748: Lambda generators no longer return a value. | |
| - The re.sub(), re.subn() and re.split() functions now accept a flags parameter. | |
| - Issue #5108: Handle %s like %S, %R and %A in PyUnicode_FromFormatV(): Call | |
| PyUnicode_DecodeUTF8() once, remember the result and output it in a second | |
| step. This avoids problems with counting UTF-8 bytes that ignores the effect | |
| of using the replace error handler in PyUnicode_DecodeUTF8(). | |
| Library | |
| ------- | |
| - Issue #7071: byte-compilation in Distutils is now done with respect to | |
| sys.dont_write_bytecode. | |
| - Issue #7066: archive_util.make_archive now restores the cwd if an error is | |
| raised. Initial patch by Ezio Melotti. | |
| - Issue #6516: Added owner/group support when creating tar archives in | |
| Distutils. | |
| - Issue #6954: Fixed crash when using DISTUTILS_DEBUG flag in Distutils. | |
| - Issue #6163: Fixed HP-UX runtime library dir options in | |
| distutils.unixcompiler. Initial patch by Sridhar Ratnakumar and | |
| Michael Haubenwallner. | |
| - Issue #6693: New functions in site.py to get user/global site packages paths. | |
| - Issue #6511: ZipFile now raises BadZipfile (instead of an IOError) when | |
| opening an empty or very small file. | |
| - Issue #6545: Removed assert statements in distutils.Extension, so the | |
| behavior is similar when used with -O. | |
| - unittest has been split up into a package. All old names should still work. | |
| - Issue #6466: now distutils.cygwinccompiler and distutils.emxccompiler | |
| uses the same refactored function to get gcc/ld/dllwrap versions numbers. | |
| It's `distutils.util.get_compiler_versions`. Added deprecation warnings | |
| for the obsolete get_versions() functions. | |
| - Issue #6433: fixed issues with multiprocessing.pool.map hanging on empty list | |
| - Issue #6314: logging: Extra checks on the "level" argument in more places. | |
| - Issue #2622: Fixed an ImportError when importing email.message from a | |
| standalone application built with py2exe or py2app. | |
| - Issue #6455: Fixed test_build_ext under win32. | |
| - Issue #6377: Enabled the compiler option, and deprecate its usage as an | |
| attribute. | |
| - Issue #6413: Fixed the log level in distutils.dist for announce. | |
| - Issue #6403: Fixed package path usage in build_ext. | |
| - Issues #5155, 5313, 5331: multiprocessing.Process._bootstrap was | |
| unconditionally calling "os.close(sys.stdin.fileno())" resulting in file | |
| descriptor errors | |
| - Issue #6365: Distutils build_ext inplace mode was copying the compiled | |
| extension in a subdirectory if the extension name had dots. | |
| - Issue #6164: Added an AIX specific linker argument in Distutils | |
| unixcompiler. Original patch by Sridhar Ratnakumar. | |
| - Issue #6286: Now Distutils upload command is based on urllib2 instead of | |
| httplib, allowing the usage of http_proxy. | |
| - Issue #6287: Added the license field in Distutils documentation. | |
| - Issue #6263: Fixed syntax error in distutils.cygwincompiler. | |
| - Issue #5201: distutils.sysconfig.parse_makefile() now understands `$$` | |
| in Makefiles. This prevents compile errors when using syntax like: | |
| `LDFLAGS='-rpath=\$$LIB:/some/other/path'`. Patch by Floris Bruynooghe. | |
| - Issue #6131: test_modulefinder leaked when run after test_distutils. | |
| Patch by Hirokazu Yamamoto. | |
| - Issue #6048: Now Distutils uses the tarfile module in archive_util. | |
| - Issue #6062: In distutils, fixed the package option of build_ext. Feedback | |
| and tests on pywin32 by Tim Golden. | |
| - Issue #6053: Fixed distutils tests on win32. patch by Hirokazu Yamamoto. | |
| - Issue #6046: Fixed the library extension when distutils build_ext is used | |
| inplace. Initial patch by Roumen Petrov. | |
| - Issue #6041: Now distutils `sdist` and `register` commands use `check` as a | |
| subcommand. | |
| - Issue #6022: a test file was created in the current working directory by | |
| test_get_outputs in Distutils. | |
| - Issue #5977: distutils build_ext.get_outputs was not taking into account the | |
| inplace option. Initial patch by kxroberto. | |
| - Issue #5984: distutils.command.build_ext.check_extensions_list checks were broken | |
| for old-style extensions. | |
| - Issue #5976: Fixed Distutils test_check_environ. | |
| - Issue #5941: Distutils build_clib command was not working anymore because | |
| of an incomplete customization of the archiver command. Added ARFLAGS in the | |
| Makefile besides AR and make Distutils use it. Original patch by David | |
| Cournapeau. | |
| - Issue #2245: aifc now skips chunk types it doesn't recognize, per spec. | |
| - Issue #5874: distutils.tests.test_config_cmd is not locale-sensitive | |
| anymore. | |
| - Issue #5810: Fixed Distutils test_build_scripts so it uses | |
| sysconfig.get_config_vars. | |
| - Issue #4951: Fixed failure in test_httpservers. | |
| - Issue #5795: Fixed test_distutils failure on Debian ppc. | |
| - Issue #5607: fixed Distutils test_get_platform for Mac OS X fat binaries. | |
| - Issue #5741: don't disallow "%%" (which is an escape for "%") when setting | |
| a value in SafeConfigParser. | |
| - Issue #5732: added a new command in Distutils: check. | |
| - Issue #5731: Distutils bdist_wininst no longer worked on non-Windows | |
| platforms. Initial patch by Paul Moore. | |
| - Issue #5095: Added bdist_msi to the list of bdist supported formats. | |
| Initial fix by Steven Bethard. | |
| - Issue #1491431: Fixed distutils.filelist.glob_to_re for edge cases. | |
| Initial fix by Wayne Davison. | |
| - Issue #5694: removed spurious test output in Distutils (test_clean). | |
| - Issue #1326077: fix the formatting of SyntaxErrors by the traceback module. | |
| - Issue #1665206 (partially): Move imports in cgitb to the top of the module | |
| instead of performing them in functions. Helps prevent import deadlocking in | |
| threads. | |
| - Issue #2522: locale.format now checks its first argument to ensure it has | |
| been passed only one pattern, avoiding mysterious errors where it appeared | |
| that it was failing to do localization. | |
| - Issue #5583: Added optional Extensions in Distutils. Initial patch by Georg | |
| Brandl. | |
| - Issue #1222: locale.format() bug when the thousands separator is a space | |
| character. | |
| - Issue #5472: Fixed distutils.test_util tear down. Original patch by | |
| Tim Golden. | |
| - collections.deque() objects now have a read-only attribute called maxlen. | |
| - Issue #2638: Show a window constructed with tkSimpleDialog.Dialog only after | |
| it is has been populated and properly configured in order to prevent | |
| window flashing. | |
| - Issue #4792: Prevent a segfault in _tkinter by using the | |
| guaranteed to be safe interp argument given to the PythonCmd in place of | |
| the Tcl interpreter taken from a PythonCmd_ClientData. | |
| - Issue #5193: Guarantee that tkinter.Text.search returns a string. | |
| - Issue #5394: removed > 2.3 syntax from distutils.msvc9compiler. | |
| Original patch by Akira Kitada. | |
| - Issue #5334: array.fromfile() failed to insert values when EOFError was raised. | |
| - Issue #5385: Fixed mmap crash after resize failure on windows. | |
| - Issue #5179: Fixed subprocess handle leak on failure on windows. | |
| - PEP 372: Added collections.OrderedDict(). | |
| - The _asdict() for method for namedtuples now returns an OrderedDict(). | |
| - configparser now defaults to using an ordered dictionary. | |
| - Issue #5401: Fixed a performance problem in mimetypes when ``from mimetypes | |
| import guess_extension`` was used. | |
| - Issue #1733986: Fixed mmap crash in accessing elements of second map object | |
| with same tagname but larger size than first map. (Windows) | |
| - Issue #5386: mmap.write_byte didn't check map size, so it could cause buffer | |
| overrun. | |
| - Issue #1533164: Installed but not listed ``*.pyo`` was breaking Distutils | |
| bdist_rpm command. | |
| - Issue #5378: added --quiet option to Distutils bdist_rpm command. | |
| - Issue #5052: make Distutils compatible with 2.3 again. | |
| - Issue #5316: Fixed buildbot failures introduced by multiple inheritance | |
| in Distutils tests. | |
| - Issue #5287: Add exception handling around findCaller() call to help out | |
| IronPython. | |
| - Issue #5282: Fixed mmap resize on 32bit windows and unix. When offset > 0, | |
| The file was resized to wrong size. | |
| - Issue #5292: Fixed mmap crash on its boundary access m[len(m)]. | |
| - Issue #2279: distutils.sdist.add_defaults now add files | |
| from the package_data and the data_files metadata. | |
| - Issue #5257: refactored all tests in distutils, so they use | |
| support.TempdirManager, to avoid writing in the tests directory. | |
| - Issue #4524: distutils build_script command failed with --with-suffix=3. | |
| Initial patch by Amaury Forgeot d'Arc. | |
| - Issue #2461: added tests for distutils.util | |
| - Issue #4998: The memory saving effect of __slots__ had been lost on Fractions | |
| which inherited from numbers.py which did not have __slots__ defined. The | |
| numbers hierarchy now has its own __slots__ declarations. | |
| - Issue #4631: Fix urlopen() result when an HTTP response uses chunked | |
| encoding. | |
| - Issue #5203: Fixed ctypes segfaults when passing a unicode string to a | |
| function without argtypes (only occurs if HAVE_USABLE_WCHAR_T is false). | |
| - Issue #3386: distutils.sysconfig.get_python_lib prefix argument was ignored | |
| under NT and OS2. Patch by Philip Jenvey. | |
| - Issue #5128: Make compileall properly inspect bytecode to determine if needs | |
| to be recreated. This avoids a timing hole thanks to the old reliance on the | |
| ctime of the files involved. | |
| - Issue #5122: Synchronize tk load failure check to prevent a potential | |
| deadlock. | |
| - Issue #1818: collections.namedtuple() now supports a keyword argument | |
| 'rename' which lets invalid fieldnames be automatically converted to | |
| positional names in the form, _1, _2, ... | |
| - Issue #4890: Handle empty text search pattern in Tkinter.Text.search. | |
| - Issue #4512 (part 2): Promote ``ZipImporter._get_filename()`` to be a | |
| public documented method ``ZipImporter.get_filename()``. | |
| - Issue #4195: The ``runpy`` module (and the ``-m`` switch) now support | |
| the execution of packages by looking for and executing a ``__main__`` | |
| submodule when a package name is supplied. Initial patch by Andi | |
| Vajda. | |
| - Issue #1731706: Call Tcl_ConditionFinalize for Tcl_Conditions that will | |
| not be used again (this requires Tcl/Tk 8.3.1), also fix a memory leak in | |
| Tkapp_Call when calling from a thread different than the one that created | |
| the Tcl interpreter. Patch by Robert Hancock. | |
| - Issue #4285: Change sys.version_info to be a named tuple. Patch by | |
| Ross Light. | |
| - Issue #1520877: Now distutils.sysconfig reads $AR from the | |
| environment/Makefile. Patch by Douglas Greiman. | |
| - Issue #1276768: The verbose option was not used in the code of | |
| distutils.file_util and distutils.dir_util. | |
| - Issue #5132: Fixed trouble building extensions under Solaris with | |
| --enabled-shared activated. Initial patch by Dave Peterson. | |
| - Issue #1581476: Always use the Tcl global namespace when calling into Tcl. | |
| - The shelve module now defaults to pickle protocol 3. | |
| - Fix a bug in the trace module where a bytes object from co_lnotab had its | |
| items being passed through ord(). | |
| - Issue #2047: shutil.move() could believe that its destination path was | |
| inside its source path if it began with the same letters (e.g. "src" vs. | |
| "src.new"). | |
| - Added the ttk module. See issue #2983: Ttk support for Tkinter. | |
| - Removed isSequenceType(), isMappingType, and isNumberType() from the | |
| operator module; use the abstract base classes instead. Also removed | |
| the repeat() function; use mul() instead. | |
| - Issue #5021: doctest.testfile() did not create __name__ and | |
| collections.namedtuple() relied on __name__ being defined. | |
| - Backport importlib from Python 3.1. Only the import_module() function has | |
| been backported to help facilitate transitions from 2.7 to 3.1. | |
| - Issue #1885: distutils. When running sdist with --formats=tar,gztar | |
| the tar file was overridden by the gztar one. | |
| - Issue #4863: distutils.mwerkscompiler has been removed. | |
| - Added a new itertools functions: combinations_with_replacement() | |
| and compress(). | |
| - Issue #5032: added a step argument to itertools.count() and | |
| allowed non-integer arguments. | |
| - Fix and properly document the multiprocessing module's logging | |
| support, expose the internal levels and provide proper usage | |
| examples. | |
| - Issue #1672332: fix unpickling of subnormal floats, which was | |
| producing a ValueError on some platforms. | |
| - Issue #3881: Help Tcl to load even when started through the | |
| unreadable local symlink to "Program Files" on Vista. | |
| - Issue #4710: Extract directories properly in the zipfile module; | |
| allow adding directories to a zipfile. | |
| - Issue #3807: _multiprocessing build fails when configure is passed | |
| --without-threads argument. When this occurs, _multiprocessing will | |
| be disabled, and not compiled. | |
| - Issue #5008: When a file is opened in append mode with the new IO library, | |
| do an explicit seek to the end of file (so that e.g. tell() returns the | |
| file size rather than 0). This is consistent with the behaviour of the | |
| traditional 2.x file object. | |
| - Issue #5013: Fixed a bug in FileHandler which occurred when the delay | |
| parameter was set. | |
| - Issue #4842: Always append a trailing 'L' when pickling longs using | |
| pickle protocol 0. When reading, the 'L' is optional. | |
| - Add the importlib package. | |
| - Issue #4301: Patch the logging module to add processName support, remove | |
| _check_logger_class from multiprocessing. | |
| - Issue #3325: Remove python2.x try: except: imports for old cPickle from | |
| multiprocessing. | |
| - Issue #4959: inspect.formatargspec now works for keyword only arguments | |
| without defaults. | |
| - Issue #3321: ``_multiprocessing.Connection()`` doesn't check handle; added checks | |
| for Unix machines for negative handles and large int handles. Without this check | |
| it is possible to segfault the interpreter. | |
| - Issue #4449: AssertionError in mp_benchmarks.py, caused by an underlying issue | |
| in sharedctypes.py. | |
| - Issue #1225107: inspect.isclass() returned True for instances with a custom | |
| __getattr__. | |
| - Issue #3826 and #4791: The socket module now closes the underlying socket | |
| appropriately when it is being used via socket.makefile() objects | |
| rather than delaying the close by waiting for garbage collection to do it. | |
| - Issue #1696199: Add collections.Counter() for rapid and convenient | |
| counting. | |
| - Issue #3860: GzipFile and BZ2File now support the context management protocol. | |
| - Issue #4867: Fixed a crash in ctypes when passing a string to a | |
| function without defining argtypes. | |
| - Issue #4272: Add an optional argument to the GzipFile constructor to override | |
| the timestamp in the gzip stream. The default value remains the current time. | |
| The information can be used by e.g. gunzip when decompressing. Patch by | |
| Jacques Frechet. | |
| - Restore Python 2.3 compatibility for decimal.py. | |
| - Issue #3638: Remove functions from _tkinter module level that depend on | |
| TkappObject to work with multiple threads. | |
| - Issue #4718: Adapt the wsgiref package so that it actually works with | |
| Python 3.x, in accordance with the `official amendments of the spec | |
| <http://www.wsgi.org/wsgi/Amendments_1.0>`_. | |
| - Issue #4796: Added Decimal.from_float() and Context.create_decimal_from_float() | |
| to the decimal module. | |
| - Fractions.from_float() no longer loses precision for integers too big to | |
| cast as floats. | |
| - Issue #4812: add missing underscore prefix to some internal-use-only | |
| constants in the decimal module. (Dec_0 becomes _Dec_0, etc.) | |
| - Issue #4790: The nsmallest() and nlargest() functions in the heapq module | |
| did unnecessary work in the common case where no key function was specified. | |
| - Issue #4795: inspect.isgeneratorfunction() returns False instead of None when | |
| the function is not a generator. | |
| - Issue #4702: Throwing a DistutilsPlatformError instead of IOError in case | |
| no MSVC compiler is found under Windows. Original patch by Philip Jenvey. | |
| - Issue #4646: distutils was choking on empty options arg in the setup | |
| function. Original patch by Thomas Heller. | |
| - Issue #3767: Convert Tk object to string in tkColorChooser. | |
| - Issue #3248: Allow placing ScrolledText in a PanedWindow. | |
| - Issue #4444: Allow assertRaises() to be used as a context handler, so that | |
| the code under test can be written inline if more practical. | |
| - Issue #4739: Add pydoc help topics for symbols, so that e.g. help('@') | |
| works as expected in the interactive environment. | |
| - Issue #4756: zipfile.is_zipfile() now supports file-like objects. Patch by | |
| Gabriel Genellina. | |
| - Issue #4574: reading a UTF16-encoded text file crashes if \r on 64-char | |
| boundary. | |
| - Issue #4223: inspect.getsource() will now correctly display source code | |
| for packages loaded via zipimport (or any other conformant PEP 302 | |
| loader). Original patch by Alexander Belopolsky. | |
| - Issue #4201: pdb can now access and display source code loaded via | |
| zipimport (or any other conformant PEP 302 loader). Original patch by | |
| Alexander Belopolsky. | |
| - Issue #4197: doctests in modules loaded via zipimport (or any other PEP | |
| 302 conformant loader) will now work correctly in most cases (they | |
| are still subject to the constraints that exist for all code running | |
| from inside a module loaded via a PEP 302 loader and attempting to | |
| perform IO operations based on __file__). Original patch by | |
| Alexander Belopolsky. | |
| - Issues #4082 and #4512: Add runpy support to zipimport in a manner that | |
| allows backporting to maintenance branches. Original patch by | |
| Alexander Belopolsky. | |
| - Issue #4163: textwrap module: allow word splitting on a hyphen preceded by | |
| a non-ASCII letter. | |
| - Issue #4616: TarFile.utime(): Restore directory times on Windows. | |
| - Issue #4021: tokenize.detect_encoding() now raises a SyntaxError when the | |
| codec cannot be found. This is for compatibility with the builtin behavior. | |
| - Issue #4084: Fix max, min, max_mag and min_mag Decimal methods to | |
| give correct results in the case where one argument is a quiet NaN | |
| and the other is a finite number that requires rounding. | |
| - Issue #4483: _dbm module now builds on systems with gdbm & gdbm_compat | |
| libs. | |
| - Added the subprocess.check_call_output() convenience function to get output | |
| from a subprocess on success or raise an exception on error. | |
| - Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to | |
| support unusual filenames (such as those containing semi-colons) in | |
| Content-Disposition headers. | |
| - Issue #4384: Added logging integration with warnings module using | |
| captureWarnings(). This change includes a NullHandler which does nothing; | |
| it will be of use to library developers who want to avoid the "No handlers | |
| could be found for logger XXX" message which can appear if the library user | |
| doesn't configure logging. | |
| - Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an | |
| exception. | |
| - Issue #4529: fix the parser module's validation of try-except-finally | |
| statements. | |
| - Issue #4458: getopt.gnu_getopt() now recognizes a single "-" as an argument, | |
| not a malformed option. | |
| - Added the subprocess.check_output() convenience function to get output | |
| from a subprocess on success or raise an exception on error. | |
| - Issue #4542: On Windows, binascii.crc32 still accepted str as binary input; | |
| the corresponding tests now pass. | |
| - Issue #4537: webbrowser.UnixBrowser would fail to open the browser because | |
| it was calling the wrong open() function. | |
| - Issue #1055234: cgi.parse_header(): Fixed parsing of header parameters to | |
| support unusual filenames (such as those containing semi-colons) in | |
| Content-Disposition headers. | |
| - Issue #4861: ctypes.util.find_library(): Robustify. Fix library detection on | |
| biarch systems. Try to rely on ldconfig only, without using objdump and gcc. | |
| - Issue #5104: The socket module now raises OverflowError when 16-bit port and | |
| protocol numbers are supplied outside the allowed 0-65536 range on bind() | |
| and getservbyport(). | |
| - Windows locale mapping updated to Vista. | |
| Tools/Demos | |
| ----------- | |
| - Issue #4704: remove use of cmp() in pybench, bump its version number to 2.1, | |
| and make it 2.6-compatible. | |
| - Ttk demos added in Demo/tkinter/ttk/ | |
| - Issue #4677: add two list comprehension tests to pybench. | |
| Build | |
| ----- | |
| - Issue #6094: Build correctly with Subversion 1.7. | |
| - Issue #5847: Remove -n switch on "Edit with IDLE" menu item. | |
| - Issue #5726: Make Modules/ld_so_aix return the actual exit code of the | |
| linker, rather than always exit successfully. Patch by Floris Bruynooghe. | |
| - Issue #4587: Add configure option --with-dbmliborder=db1:db2:... to specify | |
| the order that backends for the dbm extension are checked. | |
| - Link the shared python library with $(MODLIBS). | |
| - Issue #5134: Silence compiler warnings when compiling sqlite with VC++. | |
| - Issue #4494: Fix build with Py_NO_ENABLE_SHARED on Windows. | |
| - Issue #4895: Use _strdup on Windows CE. | |
| - Issue #4472: "configure --enable-shared" now works on OSX | |
| - Issues #4728 and #4060: WORDS_BIGEDIAN is now correct in Universal builds. | |
| - Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs". | |
| - Issue #4289: Remove Cancel button from AdvancedDlg. | |
| - Issue #1656675: Register a drop handler for .py* files on Windows. | |
| - Issue #4120: Exclude manifest from extension modules in VS2008. | |
| - Issue #4091: Install pythonxy.dll in system32 again. | |
| - Issue #4018: Disable "for me" installations on Vista. | |
| - Issue #3758: Add ``patchcheck`` build target to .PHONY. | |
| - Issue #4204: Fixed module build errors on FreeBSD 4. | |
| C-API | |
| ----- | |
| - Issue #6624: yArg_ParseTuple with "s" format when parsing argument with | |
| NUL: Bogus TypeError detail string. | |
| - Issue #5175: PyLong_AsUnsignedLongLong now raises OverflowError | |
| for negative arguments. Previously, it raised TypeError. | |
| - Issue #4720: The format for PyArg_ParseTupleAndKeywords can begin with '|'. | |
| - Issue #3632: from the gdb debugger, the 'pyo' macro can now be called when | |
| the GIL is released, or owned by another thread. | |
| - Issue #4122: On Windows, fix a compilation error when using the | |
| Py_UNICODE_ISSPACE macro in an extension module. | |
| Extension Modules | |
| ----------------- | |
| - Issue #3745: Fix hashlib to always reject unicode and non buffer-api | |
| supporting objects as input no matter how it was compiled (built in | |
| implementations or external openssl library). | |
| - Issue #4397: Fix occasional test_socket failure on OS X. | |
| - Issue #4279: Fix build of parsermodule under Cygwin. | |
| - Issue #4751: hashlib now releases the GIL when hashing large buffers | |
| (with a hardwired threshold of 2048 bytes), allowing better parallelization | |
| on multi-CPU systems. Contributed by Lukas Lueg (ebfe) and Victor Stinner. | |
| - Issue #4051: Prevent conflict of UNICODE macros in cPickle. | |
| - Issue #4738: Each zlib object now has a separate lock, allowing several streams | |
| to be compressed or decompressed at once on multi-CPU systems. Also, the GIL | |
| is now released when computing the CRC of a large buffer. Patch by ebfe. | |
| - Issue #4228: Pack negative values the same way as 2.4 in struct's L format. | |
| - Issue #1040026: Fix os.times result on systems where HZ is incorrect. | |
| - Issues #3167, #3682: Fix test_math failures for log, log10 on Solaris, | |
| OpenBSD. | |
| - Issue #4583: array.array would not always prohibit resizing when a buffer | |
| has been exported, resulting in an interpreter crash when accessing the | |
| buffer. | |
| - Issue #5228: Make functools.partial objects can now be pickled. | |
| Tests | |
| ----- | |
| - Issue #6152: New option '-j'/'--multiprocess' for regrtest allows running | |
| regression tests in parallel, shortening the total runtime. | |
| - Issue #5450: Moved tests involving loading tk from Lib/test/test_tcl to | |
| Lib/tkinter/test/test_tkinter/test_loadtk. With this, these tests demonstrate | |
| the same behaviour as test_ttkguionly (and now also test_tk) which is to | |
| skip the tests if DISPLAY is defined but can't be used. | |
| - regrtest no longer treats ImportError as equivalent to SkipTest. Imports | |
| that should cause a test to be skipped are now done using import_module | |
| from test support, which does the conversion. | |
| - Issue #5083: New 'gui' resource for regrtest. | |
| Docs | |
| ---- | |
| What's New in Python 3.0 final | |
| ============================== | |
| *Release date: 03-Dec-2008* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #3996: On Windows, the PyOS_CheckStack function would cause the | |
| interpreter to abort ("Fatal Python error: Could not reset the stack!") | |
| instead of throwing a MemoryError. | |
| - Issue #3689: The list reversed iterator now supports __length_hint__ | |
| instead of __len__. Behavior now matches other reversed iterators. | |
| - Issue #4367: Python would segfault during compiling when the unicodedata | |
| module couldn't be imported and \N escapes were present. | |
| - Fix build failure of _cursesmodule.c building with -D_FORTIFY_SOURCE=2. | |
| Library | |
| ------- | |
| - Issue #4387: binascii now refuses to accept str as binary input. | |
| - Issue #4073: Add 2to3 support to build_scripts, refactor that support | |
| in build_py. | |
| - IDLE would print a "Unhandled server exception!" message when internal | |
| debugging is enabled. | |
| - Issue #4455: IDLE failed to display the windows list when two windows have | |
| the same title. | |
| - Issue #3741: DISTUTILS_USE_SDK set causes msvc9compiler.py to raise an | |
| exception. | |
| - Issue #4433: Fixed an access violation when garbage collecting | |
| _ctypes.COMError instances. | |
| - Issue #4429: Fixed UnicodeDecodeError in ctypes. | |
| - Issue #4373: Corrected a potential reference leak in the pickle module and | |
| silenced a false positive ref leak in distutils.tests.test_build_ext. | |
| - Issue #4382: dbm.dumb did not specify the expected file encoding for opened | |
| files. | |
| - Issue #4383: When IDLE cannot make the connection to its subprocess, it would | |
| fail to properly display the error message. | |
| Build | |
| ----- | |
| - Issue #4407: Fix source file that caused the compileall step in Windows installer | |
| to fail. | |
| Docs | |
| ---- | |
| - Issue #4449: Fixed multiprocessing examples | |
| - Issue #3799: Document that dbm.gnu and dbm.ndbm will accept string arguments | |
| for keys and values which will be converted to bytes before committal. | |
| What's New in Python 3.0 release candidate 3? | |
| ============================================= | |
| *Release date: 20-Nov-2008* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #4349: sys.path included a non-existent platform directory because of a | |
| faulty Makefile. | |
| - Issue #3327: Don't overallocate in the modules_by_index list. | |
| - Issue #1721812: Binary set operations and copy() returned the input type | |
| instead of the appropriate base type. This was incorrect because set | |
| subclasses would be created without their __init__() method being called. | |
| The corrected behavior brings sets into line with lists and dicts. | |
| - Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to | |
| True, even when x doesn't compare equal to itself. This was a regression | |
| from 2.6. | |
| - Issue #3705: Command-line arguments were not correctly decoded when the | |
| terminal does not use UTF8. | |
| Library | |
| ------- | |
| - Issue #4363: The uuid.uuid1() and uuid.uuid4() functions now work even if | |
| the ctypes module is not present. | |
| - FileIO's mode attribute now always includes ``"b"``. | |
| - Issue #3799: Fix dbm.dumb to accept strings as well as bytes for keys. String | |
| keys are now written out in UTF-8. | |
| - Issue #4338: Fix distutils upload command. | |
| - Issue #4354: Fix distutils register command. | |
| - Issue #4116: Resolve member name conflict in ScrolledCanvas.__init__. | |
| - Issue #4307: The named tuple that ``inspect.getfullargspec()`` returns now | |
| uses ``kwonlydefaults`` instead of ``kwdefaults``. | |
| - Issue #4298: Fix a segfault when pickle.loads is passed ill-formed input. | |
| - Issue #4283: Fix a left-over "iteritems" call in distutils. | |
| Build | |
| ----- | |
| - Issue #4389: Add icon to the uninstall entry in "add-and-remove-programs". | |
| - Issue #4289: Remove Cancel button from AdvancedDlg. | |
| - Issue #1656675: Register a drop handler for .py* files on Windows. | |
| Tools/Demos | |
| ----------- | |
| - Demos of the socketserver module now work with Python 3. | |
| What's New in Python 3.0 release candidate 2 | |
| ============================================ | |
| *Release date: 05-Nov-2008* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #4211: The __path__ attribute of frozen packages is now a list instead | |
| of a string as required by PEP 302. | |
| - Issue #3727: Fixed poplib. | |
| - Issue #3714: Fixed nntplib by using bytes where appropriate. | |
| - Issue #1210: Fixed imaplib and its documentation. | |
| - Issue #4233: Changed semantic of ``_fileio.FileIO``'s ``close()`` | |
| method on file objects with closefd=False. The file descriptor is still | |
| kept open but the file object behaves like a closed file. The ``FileIO`` | |
| object also got a new readonly attribute ``closefd``. | |
| - Issue #3626: On cygwin, starting python with a non-existent script name | |
| would not display anything if the file name is only 1 character long. | |
| - Issue #4176: Fixed a crash when pickling an object which ``__reduce__`` | |
| method does not return iterators for the 4th and 5th items. | |
| - Issue #3723: Fixed initialization of subinterpreters. | |
| - Issue #4213: The file system encoding is now normalized by the | |
| codec subsystem, for example UTF-8 is turned into utf-8. | |
| - Issue #4200: Changed the atexit module to store its state in its | |
| PyModuleDef atexitmodule. This fixes a bug with multiple subinterpreters. | |
| - Issue #4237: io.FileIO() was raising invalid warnings caused by | |
| insufficient initialization of PyFileIOObject struct members. | |
| - Issue #4170: Pickling a collections.defaultdict object would crash the | |
| interpreter. | |
| - Issue #4146: Compilation on OpenBSD has been restored. | |
| - Issue #3574: compile() incorrectly handled source code encoded as Latin-1. | |
| - Issues #2384 and #3975: Tracebacks were not correctly printed when the | |
| source file contains a ``coding:`` header: the wrong line was displayed, and | |
| the encoding was not respected. | |
| - Issue #3740: Null-initialize module state. | |
| - Issue #3946: PyObject_CheckReadBuffer crashed on a memoryview object. | |
| - Issue #1688: On Windows, the input() prompt was not correctly displayed if it | |
| contains non-ascii characters. | |
| - Bug #3951: Py_USING_MEMORY_DEBUGGER should not be enabled by default. | |
| Library | |
| ------- | |
| - Issue #3664: The pickle module could segfault if a subclass of Pickler fails | |
| to call the base __init__ method. | |
| - Issue #3725: telnetlib now works completely in bytes. | |
| - Issue #4072: Restore build_py_2to3. | |
| - Issue #4014: Don't claim that Python has an Alpha release status, in addition | |
| to claiming it is Mature. | |
| - Issue #3187: Add sys.setfilesystemencoding. | |
| - Issue #3187: Better support for "undecodable" filenames. Code by Victor | |
| Stinner, with small tweaks by GvR. | |
| - Issue #3965: Allow repeated calls to turtle.Screen, by making it a | |
| true singleton object. | |
| - Issue #3911: ftplib.FTP.makeport() could give invalid port numbers. | |
| - Issue #3929: When the database cannot be opened, dbm.open() would incorrectly | |
| raise a TypeError: "'tuple' object is not callable" instead of the expected | |
| dbm.error. | |
| - Bug #3884: Make the turtle module toplevel again. | |
| - Issue #3547: Fixed ctypes structures bitfields of varying integer | |
| sizes. | |
| Extension Modules | |
| ----------------- | |
| - Issue #3659: Subclasses of str didn't work as SQL parameters. | |
| Build | |
| ----- | |
| - Issue #4120: Exclude manifest from extension modules in VS2008. | |
| - Issue #4091: Install pythonxy.dll in system32 again. | |
| - Issue #4018: Disable "for me" installations on Vista. | |
| - Issue #4204: Fixed module build errors on FreeBSD 4. | |
| Tools/Demos | |
| ----------- | |
| - Issue #3717: Fix Demo/embed/demo.c. | |
| - Issue #4072: Add a distutils demo for build_py_2to3. | |
| What's New in Python 3.0 release candidate 1 | |
| ============================================ | |
| *Release date: 17-Sep-2008* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #3827: memoryview lost its size attribute in favor of using len(view). | |
| - Issue #3813: could not lanch python.exe via symbolic link on cygwin. | |
| - Issue #3705: fix crash when given a non-ascii value on the command line for | |
| the "-c" and "-m" parameters. Now the behaviour is as expected under Linux, | |
| although under Windows it fails at a later point. | |
| - Issue #3279: Importing site at interpreter was failing silently because the | |
| site module uses the open builtin which was not initialized at the time. | |
| - Issue #3660: Corrected a reference leak in str.encode() when the encoder | |
| does not return a bytes object. | |
| - Issue #3774: Added a few more checks in PyTokenizer_FindEncoding to handle | |
| error conditions. | |
| - Issue #3594: Fix Parser/tokenizer.c:fp_setreadl() to open the file being | |
| tokenized by either a file path or file pointer for the benefit of | |
| PyTokenizer_FindEncoding(). | |
| - Issue #3696: Error parsing arguments on OpenBSD <= 4.4 and Cygwin. On | |
| these systems, the mbstowcs() function is slightly buggy and must be | |
| replaced with strlen() for the purpose of counting of number of wide | |
| characters needed to represent the multi-byte character string. | |
| - Issue #3697: "Fatal Python error: Cannot recover from stack overflow" | |
| could be easily encountered under Windows in debug mode when exercising | |
| the recursion limit checking code, due to bogus handling of recursion | |
| limit when USE_STACKCHEK was enabled. | |
| - Issue #3639: The _warnings module could segfault the interpreter when | |
| unexpected types were passed in as arguments. | |
| - Issue #3712: The memoryview object had a reference leak and didn't support | |
| cyclic garbage collection. | |
| - Issue #3668: Fix a memory leak with the "s*" argument parser in | |
| PyArg_ParseTuple and friends, which occurred when the argument for "s*" | |
| was correctly parsed but parsing of subsequent arguments failed. | |
| - Issue #3611: An exception __context__ could be cleared in a complex pattern | |
| involving a __del__ method re-raising an exception. | |
| - Issue #2534: speed up isinstance() and issubclass() by 50-70%, so as to | |
| match Python 2.5 speed despite the __instancecheck__ / __subclasscheck__ | |
| mechanism. In the process, fix a bug where isinstance() and issubclass(), | |
| when given a tuple of classes as second argument, were looking up | |
| __instancecheck__ / __subclasscheck__ on the tuple rather than on each | |
| type object. | |
| - Issue #3663: Py_None was decref'd when printing SyntaxErrors. | |
| - Issue #3651: Fix various memory leaks when using the buffer | |
| interface, or when the "s#" code of PyArg_ParseTuple is given a | |
| bytes object. | |
| - Issue #3657: Fix uninitialized memory read when pickling longs. | |
| Found by valgrind. | |
| - Apply security patches from Apple. | |
| - Fix crashes on memory allocation failure found with failmalloc. | |
| - Fix memory leaks found with valgrind and update suppressions file. | |
| - Fix compiler warnings in opt mode which would lead to invalid memory reads. | |
| - Fix problem using wrong name in decimal module reported by pychecker. | |
| - Issue #3650: Fixed a reference leak in bytes.split('x'). | |
| - bytes(o) now tries to use o.__bytes__() before using fallbacks. | |
| - Issue #1204: The configure script now tests for additional libraries | |
| that may be required when linking against readline. This fixes issues | |
| with x86_64 builds on some platforms (a few Linux flavors and OpenBSD). | |
| C API | |
| ----- | |
| - PyObject_Bytes and PyBytes_FromObject were added. | |
| Library | |
| ------- | |
| - Issue #3756: make re.escape() handle bytes as well as str. | |
| - Issue #3800: fix filter() related bug in formatter.py. | |
| - Issue #874900: fix behaviour of threading module after a fork. | |
| - Issue #3535: zipfile couldn't read some zip files larger than 2GB. | |
| - Issue #3776: Deprecate the bsddb package for removal in 3.0. | |
| - Issue #3762: platform.architecture() fails if python is lanched via | |
| its symbolic link. | |
| - Issue #3660: fix a memory leak in the C accelerator of the pickle module. | |
| - Issue #3160: the "bdist_wininst" distutils command didn't work. | |
| - Issue #1658: tkinter changes dict size during iteration in both | |
| tkinter.BaseWidget and tkinter.scrolledtext.ScrolledText. | |
| - The bsddb module (and therefore the dbm.bsd module) has been removed. | |
| It is now maintained outside of the standard library at | |
| http://www.jcea.es/programacion/pybsddb.htm. | |
| - Issue #600362: Relocated parse_qs() and parse_qsl(), from the cgi module | |
| to the urlparse one. Added a DeprecationWarning in the old module, it | |
| will be deprecated in the future. | |
| - Issue #3719: platform.architecture() fails if there are spaces in the | |
| path to the Python binary. | |
| - Issue #3602: As part of the merge of r66135, make the parameters on | |
| warnings.catch_warnings() keyword-only. Also remove a DeprecationWarning. | |
| - The deprecation warnings for the camelCase threading API names were removed. | |
| - Issue #3110: multiprocessing fails to compiel on solaris 10 due to missing | |
| SEM_VALUE_MAX. | |
| Extension Modules | |
| ----------------- | |
| - Issue #3782: os.write() must not accept unicode strings. | |
| - Issue #2975: When compiling several extension modules with Visual Studio 2008 | |
| from the same python interpreter, some environment variables would grow | |
| without limit. | |
| - Issue #3643: Added a few more checks to _testcapi to prevent segfaults by | |
| exploitation of poor argument checking. | |
| - bsddb code updated to version 4.7.3pre2. This code is the same than | |
| Python 2.6 one, since the intention is to keep a unified 2.x/3.x codebase. | |
| The Python code is automatically translated using "2to3". Please, do not | |
| update this code in Python 3.0 by hand. Update the 2.6 one and then | |
| do "2to3". | |
| - The _bytesio and _stringio modules are now compiled into the python binary. | |
| - Issue #3492 and #3790: Fixed the zlib module and zipimport module uses of | |
| mutable bytearray objects where they should have been using immutable bytes. | |
| - Issue #3797: Fixed the dbm, marshal, mmap, ossaudiodev, & winreg modules to | |
| return bytes objects instead of bytearray objects. | |
| Tools/Demos | |
| ----------- | |
| - Fix Misc/gdbinit so it works. | |
| Build | |
| ----- | |
| - Issue #3812: Failed to build python if configure --without-threads. | |
| - Issue #3791: Remove the bsddb module from the Windows installer, and the | |
| core bsddb library from the Windows build files. | |
| What's new in Python 3.0b3? | |
| =========================== | |
| *Release date: 20-Aug-2008* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #3653: Fix a segfault when sys.excepthook was called with invalid | |
| arguments. | |
| - Issue #2394: implement more of the memoryview API, with the caveat that | |
| only one-dimensional contiguous buffers are supported and exercised right | |
| now. Slicing, slice assignment and comparison (equality and inequality) | |
| have been added. Also, the tolist() method has been implemented, but only | |
| for byte buffers. Finally, the API has been updated to return bytes objects | |
| wherever it used to return bytearrays. | |
| - Issue #3560: clean up the new C PyMemoryView API so that naming is | |
| internally consistent; add macros PyMemoryView_GET_BASE() and | |
| PyMemoryView_GET_BUFFER() to access useful properties of a memory views | |
| without relying on a particular implementation; remove the ill-named | |
| PyMemoryView() function (PyMemoryView_GET_BUFFER() can be used instead). | |
| - ctypes function pointers that are COM methods have a boolean True | |
| value again. | |
| - Issue #1819: function calls with several named parameters are now on | |
| average 35% faster (as measured by pybench). | |
| - The undocumented C APIs PyUnicode_AsString() and | |
| PyUnicode_AsStringAndSize() were made private to the interpreter, in | |
| order to be able to refine their interfaces for Python 3.1. | |
| If you need to access the UTF-8 representation of a Unicode object | |
| as bytes string, please use PyUnicode_AsUTF8String() instead. | |
| - Issue #3460: PyUnicode_Join() implementation is 10% to 80% faster thanks | |
| to Python 3.0's stricter semantics which allow avoiding successive | |
| reallocations of the result string (this also affects str.join()). | |
| Library | |
| ------- | |
| - Issue #1276: Added temporary aliases for CJK Mac encodings to resolve | |
| a build problem on MacOS with CJK locales. It adds four temporary | |
| mappings to existing legacy codecs that are virtually compatible | |
| with Mac encodings. They will be replaced by codecs correctly | |
| implemented in 3.1. | |
| - Issue #3614: Corrected a typo in xmlrpc.client, leading to a NameError | |
| "global name 'header' is not defined". | |
| - Issue #2834: update the regular expression library to match the unicode | |
| standards of py3k. In other words, mixing bytes and unicode strings | |
| (be it as pattern, search string or replacement string) raises a TypeError. | |
| Moreover, the re.UNICODE flag is enabled automatically for unicode patterns, | |
| and can be disabled by specifying a new re.ASCII flag; as for bytes | |
| patterns, ASCII matching is the only option and trying to specify re.UNICODE | |
| for such patterns raises a ValueError. | |
| - Issue #3300: make urllib.parse.[un]quote() default to UTF-8. | |
| Code contributed by Matt Giuca. quote() now encodes the input | |
| before quoting, unquote() decodes after unquoting. There are | |
| new arguments to change the encoding and errors settings. | |
| There are also new APIs to skip the encode/decode steps. | |
| [un]quote_plus() are also affected. | |
| - Issue #2235: numbers.Number now blocks inheritance of the default id() | |
| based hash because that hash mechanism is not correct for numeric types. | |
| All concrete numeric types that inherit from Number (rather than just | |
| registering with it) must explicitly provide a hash implementation in | |
| order for their instances to be hashable. | |
| - Issue #2676: in the email package, content-type parsing was hanging on | |
| pathological input because of quadratic or exponential behaviour of a | |
| regular expression. | |
| - Issue #3476: binary buffered reading through the new "io" library is now | |
| thread-safe. | |
| - Issue #1342811: Fix leak in Tkinter.Menu.delete. Commands associated to | |
| menu entries were not deleted. | |
| - Remove the TarFileCompat class from tarfile.py. | |
| - Issue #2491: os.fdopen is now almost an alias for the built-in open(), and | |
| accepts the same parameters. It just checks that its first argument is an | |
| integer. | |
| - Issue #3394: zipfile.writestr sets external attributes when passed a | |
| file name rather than a ZipInfo instance, so files are extracted with | |
| mode 0600 rather than 000 under Unix. | |
| - Issue #2523: Fix quadratic behaviour when read()ing a binary file without | |
| asking for a specific length. | |
| Extension Modules | |
| ----------------- | |
| - Bug #3542: Support Unicode strings in _msi module. | |
| What's new in Python 3.0b2? | |
| =========================== | |
| *Release date: 17-Jul-2008* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #3008: the float type has a new instance method 'float.hex' | |
| and a new class method 'float.fromhex' to convert floating-point | |
| numbers to and from hexadecimal strings, respectively. | |
| - Issue #3083: Add alternate (#) formatting for bin, oct, hex output | |
| for str.format(). This adds the prefix 0b, 0o, or 0x, respectively. | |
| - Issue #3280: like chr(), the "%c" format now accepts unicode code points | |
| beyond the Basic Multilingual Plane (above 0xffff) on all configurations. On | |
| "narrow Unicode" builds, the result is a string of 2 code units, forming a | |
| UTF-16 surrogate pair. | |
| - Issue #3282: str.isprintable() should return False for undefined | |
| Unicode characters. | |
| - Issue #3236: Return small longs from PyLong_FromString. | |
| - Exception tracebacks now support exception chaining. | |
| Library | |
| ------- | |
| - Removed the sunaudio module. Use sunau instead. | |
| - Issue #3554: ctypes.string_at and ctypes.wstring_at did call Python | |
| api functions without holding the GIL, which could lead to a fatal | |
| error when they failed. | |
| - Issue #799428: Fix Tkinter.Misc._nametowidget to unwrap Tcl command objects. | |
| - Removed "ast" function aliases from the parser module. | |
| - Issue #3313: Fixed a crash when a failed dlopen() call does not set | |
| a valid dlerror() message. | |
| - Issue #3258: Fixed a crash when a ctypes POINTER type to an | |
| incomplete structure was created. | |
| - Issue #2683: Fix inconsistency in subprocess.Popen.communicate(): the | |
| argument now must be a bytes object in any case. | |
| - Issue #3145: help("modules whatever") failed when trying to load the source | |
| code of every single module of the standard library, including invalid files | |
| used in the test suite. | |
| - The gettext library now consistently uses Unicode strings for message ids | |
| and message strings, and ``ugettext()`` and the like don't exist anymore. | |
| - The traceback module has been expanded to handle chained exceptions. | |
| C API | |
| ----- | |
| - Issue #3247: the function Py_FindMethod was removed. Modern types should | |
| use the tp_methods slot instead. | |
| Tools/Demos | |
| ----------- | |
| - The Mac/Demos directory has been removed. | |
| - All of the Mac scripts have been removed (including BuildApplet.py). | |
| What's new in Python 3.0b1? | |
| =========================== | |
| *Release date: 18-Jun-2008* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #3211: warnings.warn_explicit() did not guard against its 'registry' | |
| argument being anything other than a dict or None. Also fixed a bug in error | |
| handling when 'message' and 'category' were both set to None, triggering a | |
| bus error. | |
| - Issue #3100: Corrected a crash on deallocation of a subclassed weakref which | |
| holds the last (strong) reference to its referent. | |
| - Issue #2630: implement PEP 3138. repr() now returns printable | |
| Unicode characters unescaped, to get an ASCII-only representation | |
| of an object use ascii(). | |
| - Issue #1342: On windows, Python could not start when installed in a | |
| directory with non-ascii characters. | |
| - Implement PEP 3121: new module initialization and finalization API. | |
| - Removed the already-defunct ``-t`` option. | |
| - Issue #2957: Corrected a ValueError "recursion limit exceeded", when | |
| unmarshalling many code objects, which happens when importing a | |
| large .pyc file (~1000 functions). | |
| - Issue #2963: fix merging oversight that disabled method cache for | |
| all types. | |
| - Issue #2964: fix a missing INCREF in instancemethod_descr_get. | |
| - Issue #2895: Don't crash when given bytes objects as keyword names. | |
| - Issue #2798: When parsing arguments with PyArg_ParseTuple, the "s" | |
| code now allows any unicode string and returns a utf-8 encoded | |
| buffer, just like the "s#" code already does. The "z" code was | |
| corrected as well. | |
| - Issue #2863: generators now have a ``gen.__name__`` attribute that | |
| equals ``gen.gi_code.co_name``, like ``func.__name___`` that equals | |
| ``func.func_code.co_name``. The repr() of a generator now also | |
| contains this name. | |
| - Issue #2831: enumerate() now has a ``start`` argument. | |
| - Issue #2801: fix bug in the float.is_integer method where a | |
| ValueError was sometimes incorrectly raised. | |
| - The ``--with-toolbox-glue`` option (and the associated | |
| pymactoolbox.h) have been removed. | |
| - Issue #2196: hasattr() now lets exceptions which do not inherit | |
| Exception (KeyboardInterrupt, and SystemExit) propagate instead of | |
| ignoring them. | |
| - #3021 Exception reraising semantics have been significantly improved. However, | |
| f_exc_type, f_exc_value, and f_exc_traceback cannot be accessed from Python | |
| code anymore. | |
| - Three of PyNumberMethods' members, nb_coerce, nb_hex, and nb_oct, have been | |
| removed. | |
| Extension Modules | |
| ----------------- | |
| - Renamed ``_winreg`` module to ``winreg``. | |
| - Support os.O_ASYNC and fcntl.FASYNC if the constants exist on the | |
| platform. | |
| - Support for Windows 9x has been removed from the winsound module. | |
| - Issue #2870: cmathmodule.c compile error. | |
| Library | |
| ------- | |
| - The methods ``is_in_tuple()``, ``is_vararg()``, and ``is_keywordarg()`` of | |
| symtable.Symbol have been removed. | |
| - Patch #3133: http.server.CGIHTTPRequestHandler did not work on windows. | |
| - a new ``urllib`` package was created. It consists of code from | |
| ``urllib``, ``urllib2``, ``urlparse``, and ``robotparser``. The old | |
| modules have all been removed. The new package has five submodules: | |
| ``urllib.parse``, ``urllib.request``, ``urllib.response``, | |
| ``urllib.error``, and ``urllib.robotparser``. The | |
| ``urllib.request.urlopen()`` function uses the url opener from | |
| ``urllib2``. (Note that the unittests have not been renamed for the | |
| beta, but they will be renamed in the future.) | |
| - rfc822 has been removed in favor of the email package. | |
| - mimetools has been removed in favor of the email package. | |
| - Patch #2849: Remove use of rfc822 module from standard library. | |
| - Added C optimized implementation of io.StringIO. | |
| - The ``pickle`` module is now automatically use an optimized C | |
| implementation of Pickler and Unpickler when available. The | |
| ``cPickle`` module is no longer needed. | |
| - Removed the ``htmllib`` and ``sgmllib`` modules. | |
| - The deprecated ``SmartCookie`` and ``SimpleCookie`` classes have | |
| been removed from ``http.cookies``. | |
| - The ``commands`` module has been removed. Its getoutput() and | |
| getstatusoutput() functions have been moved to the ``subprocess`` module. | |
| - The ``http`` package was created; it contains the old ``httplib`` | |
| as ``http.client``, ``Cookie`` as ``http.cookies``, ``cookielib`` | |
| as ``http.cookiejar``, and the content of the three ``HTTPServer`` | |
| modules as ``http.server``. | |
| - The ``xmlrpc`` package was created; it contains the old | |
| ``xmlrpclib`` module as ``xmlrpc.client`` and the content of | |
| the old ``SimpleXMLRPCServer`` and ``DocXMLRPCServer`` modules | |
| as ``xmlrpc.server``. | |
| - The ``dbm`` package was created, containing the old modules | |
| ``anydbm`` and ``whichdb`` in its ``__init__.py``, and having | |
| ``dbm.gnu`` (was ``gdbm``), ``dbm.bsd`` (was ``dbhash``), | |
| ``dbm.ndbm`` (was ``dbm``) and ``dbm.dumb`` (was ``dumbdbm``) | |
| as submodules. | |
| - The ``repr`` module has been renamed to ``reprlib``. | |
| - The ``statvfs`` module has been removed. | |
| - Issue #1713041: fix pprint's handling of maximum depth. | |
| - Issue #2250: Exceptions raised during evaluation of names in | |
| rlcompleter's ``Completer.complete()`` method are now caught and | |
| ignored. | |
| - Patch #2659: Added ``break_on_hyphens`` option to textwrap's | |
| ``TextWrapper`` class. | |
| - Issue #2487: change the semantics of math.ldexp(x, n) when n is too | |
| large to fit in a C long. ldexp(x, n) now returns a zero (with | |
| suitable sign) if n is large and negative; previously, it raised | |
| OverflowError. | |
| - The ``ConfigParser`` module has been renamed to ``configparser``. | |
| - Issue #2865: webbrowser.open() works again in a KDE environment. | |
| - The ``multifile`` module has been removed. | |
| - The ``SocketServer`` module has been renamed to ``socketserver``. | |
| - Fixed the ``__all__`` setting on ``collections`` to include | |
| ``UserList`` and ``UserString``. | |
| - The sre module has been removed. | |
| - The Queue module has been renamed to queue. | |
| - The copy_reg module has been renamed to copyreg. | |
| - The mhlib module has been removed. | |
| - The ihooks module has been removed. | |
| - The fpformat module has been removed. | |
| - The dircache module has been removed. | |
| - The Canvas module has been removed. | |
| - The Decimal module gained the magic methods __round__, __ceil__, | |
| __floor__ and __trunc__, to give support for round, math.ceil, | |
| math.floor and math.trunc. | |
| - The user module has been removed. | |
| - The mutex module has been removed. | |
| - The imputil module has been removed. | |
| - os.path.walk has been removed in favor of os.walk. | |
| - pdb gained the "until" command. | |
| - The test.test_support module has been renamed to test.support. | |
| - The threading module API was renamed to be PEP 8 compliant. The | |
| old names are still present, but will be removed in the near future. | |
| Tools/Demos | |
| ----------- | |
| - The bgen tool has been removed. | |
| Build | |
| ----- | |
| What's New in Python 3.0a5? | |
| =========================== | |
| *Release date: 08-May-2008* | |
| Core and Builtins | |
| ----------------- | |
| - Fixed misbehaviour of PyLong_FromSsize_t on systems where | |
| sizeof(size_t) > sizeof(long). | |
| - Issue #2221: Corrected a SystemError "error return without exception | |
| set", when the code executed by exec() raises an exception, and | |
| sys.stdout.flush() also raises an error. | |
| - Bug #2565: The repr() of type objects now calls them 'class', not | |
| 'type' - whether they are builtin types or not. | |
| - The command line processing was converted to pass Unicode strings | |
| through as unmodified as possible; as a consequence, the C API | |
| related to command line arguments was changed to use wchar_t. | |
| - All backslashes in raw strings are interpreted literally. This | |
| means that '\u' and '\U' escapes are not treated specially. | |
| Extension Modules | |
| ----------------- | |
| Library | |
| ------- | |
| - ctypes objects now support the PEP3118 buffer interface. | |
| - Issue #2682: ctypes callback functions now longer contain a cyclic | |
| reference to themselves. | |
| - Issue #2058: Remove the buf attribute and add __slots__ to the | |
| TarInfo class in order to reduce tarfile's memory usage. | |
| - Bug #2606: Avoid calling .sort() on a dict_keys object. | |
| - The bundled libffi copy is now in sync with the recently released | |
| libffi3.0.5 version, apart from some small changes to | |
| Modules/_ctypes/libffi/configure.ac. | |
| Build | |
| ----- | |
| - Issue #1496032: On alpha, use -mieee when gcc is the compiler. | |
| - "make install" is now an alias for "make altinstall", to prevent | |
| accidentally overwriting a Python 2.x installation. Use "make | |
| fullinstall" to force Python 3.0 to be installed as "python". | |
| - Issue #2544: On HP-UX systems, use 'gcc -shared' for linking when | |
| gcc is used as compiler. | |
| What's New in Python 3.0a4? | |
| =========================== | |
| *Release date: 02-Apr-2008* | |
| Core and Builtins | |
| ----------------- | |
| - Bug #2301: Don't try decoding the source code into the original | |
| encoding for syntax errors. | |
| Extension Modules | |
| ----------------- | |
| - The dl module was removed, use the ctypes module instead. | |
| - Use wchar_t functions in _locale module. | |
| Library | |
| ------- | |
| - The class distutils.commands.build_py.build_py_2to3 can be used as a | |
| build_py replacement to automatically run 2to3 on modules that are | |
| going to be installed. | |
| - A new pickle protocol (protocol 3) is added with explicit support | |
| for bytes. This is the default protocol. It intentionally cannot | |
| be unpickled by Python 2.x. | |
| - When a pickle written by Python 2.x contains an (8-bit) str | |
| instance, this is now decoded to a (Unicode) str instance. The | |
| encoding used to do this defaults to ASCII, but can be overridden | |
| via two new keyword arguments to the Unpickler class. Previously | |
| this would create bytes instances, which is usually wrong: str | |
| instances are often used to pickle attribute names etc., and text is | |
| more common than binary data anyway. | |
| - Default to ASCII as the locale.getpreferredencoding, if the POSIX | |
| system doesn't support CODESET and LANG isn't set or doesn't allow | |
| deduction of an encoding. | |
| - Issue #1202: zlib.crc32 and zlib.adler32 now return an unsigned | |
| value. | |
| - Issue #719888: Updated tokenize to use a bytes API. generate_tokens | |
| has been renamed tokenize and now works with bytes rather than | |
| strings. A new detect_encoding function has been added for | |
| determining source file encoding according to PEP-0263. Token | |
| sequences returned by tokenize always start with an ENCODING token | |
| which specifies the encoding used to decode the file. This token is | |
| used to encode the output of untokenize back to bytes. | |
| What's New in Python 3.0a3? | |
| =========================== | |
| *Release date: 29-Feb-2008* | |
| Core and Builtins | |
| ----------------- | |
| - Issue #2282: io.TextIOWrapper was not overriding seekable() from | |
| io.IOBase. | |
| - Issue #2115: Important speedup in setting __slot__ attributes. Also | |
| prevent a possible crash: an Abstract Base Class would try to access | |
| a slot on a registered virtual subclass. | |
| - Fixed repr() and str() of complex numbers with infinity or nan as | |
| real or imaginary part. | |
| - Clear all free list during a gc.collect() of the highest generation | |
| in order to allow pymalloc to free more arenas. Python may give back | |
| memory to the OS earlier. | |
| - Issue #2045: Fix an infinite recursion triggered when printing a | |
| subclass of collections.defaultdict, if its default_factory is set | |
| to a bound method. | |
| - Fixed a minor memory leak in dictobject.c. The content of the free | |
| list was not freed on interpreter shutdown. | |
| - Limit free list of method and builtin function objects to 256 | |
| entries each. | |
| - Patch #1953: Added ``sys._compact_freelists()`` and the C API | |
| functions ``PyInt_CompactFreeList`` and ``PyFloat_CompactFreeList`` | |
| to compact the internal free lists of pre-allocted ints and floats. | |
| - Bug #1983: Fixed return type of fork(), fork1() and forkpty() calls. | |
| Python expected the return type int but the fork familie returns | |
| pi_t. | |
| - Issue #1678380: Fix a bug that identifies 0j and -0j when they | |
| appear in the same code unit. | |
| - Issue #2025: Added tuple.count() and tuple.index() methods to comply | |
| with the collections.Sequence API. | |
| - Fixed multiple reinitialization of the Python interpreter. The small | |
| int list in longobject.c has caused a seg fault during the third | |
| finalization. | |
| - Issue #1973: bytes.fromhex('') raised SystemError. | |
| - Issue #1771: remove cmp parameter from sorted() and list.sort(). | |
| - Issue #1969: split and rsplit in bytearray are inconsistent. | |
| - map() no longer accepts None for the first argument. Use zip() | |
| instead. | |
| - Issue #1769: Now int("- 1") is not allowed any more. | |
| - Object/longobject.c: long(float('nan')) raises an OverflowError | |
| instead of returning 0. | |
| - Issue #1762972: __file__ points to the source file instead of the | |
| pyc/pyo file if the py file exists. | |
| - Issue #1393: object_richcompare() returns NotImplemented instead of | |
| False if the objects aren't equal, to give the other side a chance. | |
| - Issue #1692: Interpreter was not displaying location of SyntaxError. | |
| - Improve some exception messages when Windows fails to load an | |
| extension module. Now we get for example '%1 is not a valid Win32 | |
| application' instead of 'error code 193'. Also use Unicode strings | |
| to deal with non-English locales. | |
| - Issue #1587: Added instancemethod wrapper for PyCFunctions. The | |
| Python C API has gained a new type *PyInstanceMethod_Type* and the | |
| functions *PyInstanceMethod_Check(o)*, *PyInstanceMethod_New(func)* | |
| and *PyInstanceMethod_Function(im)*. | |
| - Constants gc.DEBUG_OBJECT and gc.DEBUG_INSTANCE have been removed | |
| from the gc module; gc.DEBUG_COLLECTABLE or gc.DEBUG_UNCOLLECTABLE | |
| are now enough to print the corresponding list of objects considered | |
| by the garbage collector. | |
| - Issue #1573: Improper use of the keyword-only syntax makes the | |
| parser crash. | |
| - Issue #1564: The set implementation should special-case PyUnicode | |
| instead of PyString. | |
| - Patch #1031213: Decode source line in SyntaxErrors back to its | |
| original source encoding. | |
| - inspect.getsource() includes the decorators again. | |
| - Bug #1713: posixpath.ismount() claims symlink to a mountpoint is a | |
| mountpoint. | |
| - Fix utf-8-sig incremental decoder, which didn't recognise a BOM when | |
| the first chunk fed to the decoder started with a BOM, but was | |
| longer than 3 bytes. | |
| Extension Modules | |
| ----------------- | |
| - Code for itertools ifilter(), imap(), and izip() moved to bultins | |
| and renamed to filter(), map(), and zip(). Also, renamed | |
| izip_longest() to zip_longest() and ifilterfalse() to filterfalse(). | |
| - Issue #1762972: Re-added the reload() function as imp.reload(). | |
| - Bug #2111: mmap segfaults when trying to write a block opened with | |
| PROT_READ. | |
| - Issue #2063: correct order of utime and stime in os.times() result | |
| on Windows. | |
| Library | |
| ------- | |
| - Weakref dictionaries now inherit from MutableMapping. | |
| - Created new UserDict class in collections module. This one inherits | |
| from and complies with the MutableMapping ABC. Also, moved | |
| UserString and UserList to the collections module. The | |
| MutableUserString class was removed. | |
| - Removed UserDict.DictMixin. Replaced all its uses with | |
| collections.MutableMapping. | |
| - Issue #1703: getpass() should flush after writing prompt. | |
| - Issue #1585: IDLE uses non-existent xrange() function. | |
| - Issue #1578: Problems in win_getpass. | |
| Build | |
| ----- | |
| - Renamed --enable-unicode configure flag to --with-wide-unicode, | |
| since Unicode strings can't be disabled anymore. | |
| C API | |
| ----- | |
| - Issue #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, | |
| Py_TYPE and Py_REFCNT. | |
| - New API PyImport_ImportModuleNoBlock(), works like | |
| PyImport_ImportModule() but won't block on the import lock | |
| (returning an error instead). | |
| What's New in Python 3.0a2? | |
| =========================== | |
| *Release date: 07-Dec-2007* | |
| (Note: this list is incomplete.) | |
| Core and Builtins | |
| ----------------- | |
| - str8 now has the same construction signature as bytes. | |
| - Comparisons between str and str8 now return False/True for ==/!=. | |
| sqlite3 returns str8 when recreating on object from it's __conform__ | |
| value. The struct module returns str8 for all string-related | |
| formats. This was true before this change, but becomes more | |
| apparent thanks to string comparisons always being False. | |
| - Replaced `PyFile_FromFile()` with `PyFile_FromFd(fd, name. mode, | |
| buffer, encoding, newline)`. | |
| - Fixed `imp.find_module()` to obey the -*- coding: -*- header. | |
| - Changed `__file__` and `co_filename` to unicode. The path names are decoded | |
| with `Py_FileSystemDefaultEncoding` and a new API method | |
| `PyUnicode_DecodeFSDefault(char*)` was added. | |
| - io.open() and _fileio.FileIO have grown a new argument closefd. A | |
| false value disables the closing of the file descriptor. | |
| - Added a new option -b to issues warnings (-bb for errors) about | |
| certain operations between bytes/buffer and str like str(b'') and | |
| comparison. | |
| - The standard streams sys.stdin, stdout and stderr may be None | |
| when the C runtime library returns an invalid file descriptor | |
| for the streams (fileno(stdin) < 0). For now this happens only for | |
| Windows GUI apps and scripts started with `pythonw.exe`. | |
| - Added PCbuild9 directory for VS 2008. | |
| - Renamed structmember.h WRITE_RESTRICTED to PY_WRITE_RESTRICTED to | |
| work around a name clash with VS 2008 on Windows. | |
| - Unbound methods are gone for good. ClassObject.method returns an | |
| ordinary function object, instance.method still returns a bound | |
| method object. The API of bound methods is cleaned up, too. The | |
| im_class attribute is removed and im_func + im_self are renamed to | |
| __func__ and __self__. The factory PyMethod_New takes only func and | |
| instance as argument. | |
| - intobject.h is no longer included by Python.h. The remains were | |
| moved to longobject.h. It still exists to define several aliases | |
| from PyInt to PyLong functions. | |
| - Removed sys.maxint, use sys.maxsize instead. | |
| Extension Modules | |
| ----------------- | |
| - The `hotshot` profiler has been removed; use `cProfile` instead. | |
| Library | |
| ------- | |
| - When loading an external file using testfile(), the passed-in | |
| encoding argument was being ignored if __loader__ is defined and | |
| forcing the source to be UTF-8. | |
| - The methods `os.tmpnam()`, `os.tempnam()` and `os.tmpfile()` have | |
| been removed in favor of the tempfile module. | |
| - Removed the 'new' module. | |
| - Removed all types from the 'types' module that are easily accessible | |
| through builtins. | |
| What's New in Python 3.0a1? | |
| =========================== | |
| *Release date: 31-Aug-2007* | |
| Core and Builtins | |
| ----------------- | |
| - PEP 3131: Support non-ASCII identifiers. | |
| - PEP 3120: Change default encoding to UTF-8. | |
| - PEP 3123: Use proper C inheritance for PyObject. | |
| - Removed the __oct__ and __hex__ special methods and added a bin() | |
| builtin function. | |
| - PEP 3127: octal literals now start with "0o". Old-style octal | |
| literals are invalid. There are binary literals with a prefix of | |
| "0b". This also affects int(x, 0). | |
| - None, True, False are now keywords. | |
| - PEP 3119: isinstance() and issubclass() can be overridden. | |
| - Remove BaseException.message. | |
| - Remove tuple parameter unpacking (PEP 3113). | |
| - Remove the f_restricted attribute from frames. This naturally leads | |
| to the removal of PyEval_GetRestricted() and PyFrame_IsRestricted(). | |
| - PEP 3132 was accepted. That means that you can do ``a, *b = | |
| range(5)`` to assign 0 to a and [1, 2, 3, 4] to b. | |
| - range() now returns an iterator rather than a list. Floats are not | |
| allowed. xrange() is no longer defined. | |
| - Patch #1660500: hide iteration variable in list comps, add set comps | |
| and use common code to handle compilation of iterative expressions. | |
| - By default, != returns the opposite of ==, unless the latter returns | |
| NotImplemented. | |
| - Patch #1680961: sys.exitfunc has been removed and replaced with a | |
| private C-level API. | |
| - PEP 3115: new metaclasses: the metaclass is now specified as a | |
| keyword arg in the class statement, which can now use the full | |
| syntax of a parameter list. Also, the metaclass can implement a | |
| __prepare__ function which will be called to create the dictionary | |
| for the new class namespace. | |
| - The long-deprecated argument "pend" of PyFloat_FromString() has been | |
| removed. | |
| - The dir() function has been extended to call the __dir__() method on | |
| its argument, if it exists. If not, it will work like before. This | |
| allows customizing the output of dir() in the presence of a | |
| __getattr__(). | |
| - Removed support for __members__ and __methods__. | |
| - Removed indexing/slicing on BaseException. | |
| - input() became raw_input(): the name input() now implements the | |
| functionality formerly known as raw_input(); the name raw_input() is | |
| no longer defined. | |
| - Classes listed in an 'except' clause must inherit from | |
| BaseException. | |
| - PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone; | |
| and .keys(), .items(), .values() return dict views, which behave | |
| like sets. | |
| - PEP 3105: print is now a function. Also (not in the PEP) the | |
| 'softspace' attribute of files is now gone (since print() doesn't | |
| use it). A side effect of this change is that you can get | |
| incomplete output lines in interactive sessions: | |
| >>> print(42, end="") | |
| 42>>> | |
| We may be able to fix this after the I/O library rewrite. | |
| - PEP 3102: keyword-only arguments. | |
| - Int/Long unification is complete. The 'long' built-in type and | |
| literals with trailing 'L' or 'l' have been removed. Performance | |
| may be sub-optimal (haven't really benchmarked). | |
| - 'except E, V' must now be spelled as 'except E as V' and deletes V | |
| at the end of the except clause; V must be a simple name. | |
| - Added function annotations per PEP 3107. | |
| - Added nonlocal declaration from PEP 3104: | |
| >>> def f(x): | |
| ... def inc(): | |
| ... nonlocal x | |
| ... x += 1 | |
| ... return x | |
| ... return inc | |
| ... | |
| >>> inc = f(0) | |
| >>> inc() | |
| 1 | |
| >>> inc() | |
| 2 | |
| - Moved intern() to sys.intern(). | |
| - exec is now a function. | |
| - Renamed nb_nonzero to nb_bool and __nonzero__ to __bool__. | |
| - Classic classes are a thing of the past. All classes are new style. | |
| - Exceptions *must* derive from BaseException. | |
| - Integer division always returns a float. The -Q option is no more. | |
| All the following are gone: | |
| * PyNumber_Divide and PyNumber_InPlaceDivide | |
| * __div__, __rdiv__, and __idiv__ | |
| * nb_divide, nb_inplace_divide | |
| * operator.div, operator.idiv, operator.__div__, operator.__idiv__ | |
| (Only __truediv__ and __floordiv__ remain, not sure how to handle | |
| them if we want to re-use __div__ and friends. If we do, it will | |
| make it harder to write code for both 2.x and 3.x.) | |
| - 'as' and 'with' are keywords. | |
| - Absolute import is the default behavior for 'import foo' etc. | |
| - Removed support for syntax: backticks (ie, `x`), <>. | |
| - Removed these Python builtins: apply(), callable(), coerce(), | |
| execfile(), file(), reduce(), reload(). | |
| - Removed these Python methods: {}.has_key. | |
| - Removed these opcodes: BINARY_DIVIDE, INPLACE_DIVIDE, UNARY_CONVERT. | |
| - Remove C API support for restricted execution. | |
| - zip(), map() and filter() now return iterators, behaving like their | |
| itertools counterparts. This also affect map()'s behavior on | |
| sequences of unequal length -- it now stops after the shortest one | |
| is exhausted. | |
| - Additions: set literals, set comprehensions, ellipsis literal. | |
| - Added class decorators per PEP 3129. | |
| Extension Modules | |
| ----------------- | |
| - Removed the imageop module. Obsolete long with its unit tests | |
| becoming useless from the removal of rgbimg and imgfile. | |
| - Removed these attributes from the operator module: div, idiv, | |
| __div__, __idiv__, isCallable, sequenceIncludes. | |
| - Removed these attributes from the sys module: exc_clear(), exc_type, | |
| exc_value, exc_traceback. | |
| Library | |
| ------- | |
| - Removed the compiler package. Use of the _ast module and (an | |
| eventual) AST -> bytecode mechanism. | |
| - Removed these modules: audiodev, Bastion, bsddb185, exceptions, | |
| linuxaudiodev, md5, MimeWriter, mimify, popen2, rexec, sets, sha, | |
| stringold, strop, sunaudiodev, timing, xmllib. | |
| - Moved the toaiff module to Tools/Demos. | |
| - Removed obsolete IRIX modules: al/AL, cd/CD, cddb, cdplayer, cl/CL, | |
| DEVICE, ERRNO, FILE, fl/FL, flp, fm, GET, gl/GL, GLWS, IN, imgfile, | |
| IOCTL, jpeg, panel, panelparser, readcd, sgi, sv/SV, torgb, WAIT. | |
| - Removed obsolete functions: commands.getstatus(), os.popen*(). | |
| - Removed functions in the string module that are also string methods; | |
| Remove string.{letters, lowercase, uppercase}. | |
| - Removed support for long obsolete platforms: plat-aix3, plat-irix5. | |
| - Removed xmlrpclib.SlowParser. It was based on xmllib. | |
| - Patch #1680961: atexit has been reimplemented in C. | |
| - Add new codecs for UTF-32, UTF-32-LE and UTF-32-BE. | |
| Build | |
| ----- | |
| C API | |
| ----- | |
| - Removed these Python slots: __coerce__, __div__, __idiv__, __rdiv__. | |
| - Removed these C APIs: PyNumber_Coerce(), PyNumber_CoerceEx(), | |
| PyMember_Get, PyMember_Set. | |
| - Removed these C slots/fields: nb_divide, nb_inplace_divide. | |
| - Removed these macros: staticforward, statichere, PyArg_GetInt, | |
| PyArg_NoArgs, _PyObject_Del. | |
| - Removed these typedefs: intargfunc, intintargfunc, intobjargproc, | |
| intintobjargproc, getreadbufferproc, getwritebufferproc, | |
| getsegcountproc, getcharbufferproc, memberlist. | |
| Tests | |
| ----- | |
| - Removed test.testall as test.regrtest replaces it. | |
| Documentation | |
| ------------- | |
| Mac | |
| --- | |
| - The cfmfile module was removed. | |
| Platforms | |
| --------- | |
| - Support for BeOS and AtheOS was removed (according to PEP 11). | |
| - Support for RiscOS, Irix, Tru64 was removed (allegedly). | |
| Tools/Demos | |
| ----------- | |
| What's New in Python 2.5 release candidate 1? | |
| ============================================= | |
| *Release date: 17-AUG-2006* | |
| Core and builtins | |
| ----------------- | |
| - Unicode objects will no longer raise an exception when being | |
| compared equal or unequal to a string and a UnicodeDecodeError | |
| exception occurs, e.g. as result of a decoding failure. | |
| Instead, the equal (==) and unequal (!=) comparison operators will | |
| now issue a UnicodeWarning and interpret the two objects as | |
| unequal. The UnicodeWarning can be filtered as desired using | |
| the warning framework, e.g. silenced completely, turned into an | |
| exception, logged, etc. | |
| Note that compare operators other than equal and unequal will still | |
| raise UnicodeDecodeError exceptions as they've always done. | |
| - Fix segfault when doing string formatting on subclasses of long. | |
| - Fix bug related to __len__ functions using values > 2**32 on 64-bit machines | |
| with new-style classes. | |
| - Fix bug related to __len__ functions returning negative values with | |
| classic classes. | |
| - Patch #1538606, Fix __index__() clipping. There were some problems | |
| discovered with the API and how integers that didn't fit into Py_ssize_t | |
| were handled. This patch attempts to provide enough alternatives | |
| to effectively use __index__. | |
| - Bug #1536021: __hash__ may now return long int; the final hash | |
| value is obtained by invoking hash on the long int. | |
| - Bug #1536786: buffer comparison could emit a RuntimeWarning. | |
| - Bug #1535165: fixed a segfault in input() and raw_input() when | |
| sys.stdin is closed. | |
| - On Windows, the PyErr_Warn function is now exported from | |
| the Python dll again. | |
| - Bug #1191458: tracing over for loops now produces a line event | |
| on each iteration. Fixing this problem required changing the .pyc | |
| magic number. This means that .pyc files generated before 2.5c1 | |
| will be regenerated. | |
| - Bug #1333982: string/number constants were inappropriately stored | |
| in the byte code and co_consts even if they were not used, ie | |
| immediately popped off the stack. | |
| - Fixed a reference-counting problem in property(). | |
| Library | |
| ------- | |
| - Fix a bug in the ``compiler`` package that caused invalid code to be | |
| generated for generator expressions. | |
| - The distutils version has been changed to 2.5.0. The change to | |
| keep it programmatically in sync with the Python version running | |
| the code (introduced in 2.5b3) has been reverted. It will continue | |
| to be maintained manually as static string literal. | |
| - If the Python part of a ctypes callback function returns None, | |
| and this cannot be converted to the required C type, an exception is | |
| printed with PyErr_WriteUnraisable. Before this change, the C | |
| callback returned arbitrary values to the calling code. | |
| - The __repr__ method of a NULL ctypes.py_object() no longer raises | |
| an exception. | |
| - uuid.UUID now has a bytes_le attribute. This returns the UUID in | |
| little-endian byte order for Windows. In addition, uuid.py gained some | |
| workarounds for clocks with low resolution, to stop the code yielding | |
| duplicate UUIDs. | |
| - Patch #1540892: site.py Quitter() class attempts to close sys.stdin | |
| before raising SystemExit, allowing IDLE to honor quit() and exit(). | |
| - Bug #1224621: make tabnanny recognize IndentationErrors raised by tokenize. | |
| - Patch #1536071: trace.py should now find the full module name of a | |
| file correctly even on Windows. | |
| - logging's atexit hook now runs even if the rest of the module has | |
| already been cleaned up. | |
| - Bug #1112549, fix DoS attack on cgi.FieldStorage. | |
| - Bug #1531405, format_exception no longer raises an exception if | |
| str(exception) raised an exception. | |
| - Fix a bug in the ``compiler`` package that caused invalid code to be | |
| generated for nested functions. | |
| Extension Modules | |
| ----------------- | |
| - Patch #1511317: don't crash on invalid hostname (alias) info. | |
| - Patch #1535500: fix segfault in BZ2File.writelines and make sure it | |
| raises the correct exceptions. | |
| - Patch # 1536908: enable building ctypes on OpenBSD/AMD64. The | |
| '-no-stack-protector' compiler flag for OpenBSD has been removed. | |
| - Patch #1532975 was applied, which fixes Bug #1533481: ctypes now | |
| uses the _as_parameter_ attribute when objects are passed to foreign | |
| function calls. The ctypes version number was changed to 1.0.1. | |
| - Bug #1530559, struct.pack raises TypeError where it used to convert. | |
| Passing float arguments to struct.pack when integers are expected | |
| now triggers a DeprecationWarning. | |
| Tests | |
| ----- | |
| - test_socketserver should now work on cygwin and not fail sporadically | |
| on other platforms. | |
| - test_mailbox should now work on cygwin versions 2006-08-10 and later. | |
| - Bug #1535182: really test the xreadlines() method of bz2 objects. | |
| - test_threading now skips testing alternate thread stack sizes on | |
| platforms that don't support changing thread stack size. | |
| Documentation | |
| ------------- | |
| - Patch #1534922: unittest docs were corrected and enhanced. | |
| Build | |
| ----- | |
| - Bug #1535502, build _hashlib on Windows, and use masm assembler | |
| code in OpenSSL. | |
| - Bug #1534738, win32 debug version of _msi should be _msi_d.pyd. | |
| - Bug #1530448, ctypes build failure on Solaris 10 was fixed. | |
| C API | |
| ----- | |
| - New API for Unicode rich comparisons: PyUnicode_RichCompare() | |
| - Bug #1069160. Internal correctness changes were made to | |
| ``PyThreadState_SetAsyncExc()``. A test case was added, and | |
| the documentation was changed to state that the return value | |
| is always 1 (normal) or 0 (if the specified thread wasn't found). | |
| What's New in Python 2.5 beta 3? | |
| ================================ | |
| *Release date: 03-AUG-2006* | |
| Core and builtins | |
| ----------------- | |
| - _PyWeakref_GetWeakrefCount() now returns a Py_ssize_t; it previously | |
| returned a long (see PEP 353). | |
| - Bug #1515471: string.replace() accepts character buffers again. | |
| - Add PyErr_WarnEx() so C code can pass the stacklevel to warnings.warn(). | |
| This provides the proper warning for struct.pack(). | |
| PyErr_Warn() is now deprecated in favor of PyErr_WarnEx(). | |
| - Patch #1531113: Fix augmented assignment with yield expressions. | |
| Also fix a SystemError when trying to assign to yield expressions. | |
| - Bug #1529871: The speed enhancement patch #921466 broke Python's compliance | |
| with PEP 302. This was fixed by adding an ``imp.NullImporter`` type that is | |
| used in ``sys.path_importer_cache`` to cache non-directory paths and avoid | |
| excessive filesystem operations during imports. | |
| - Bug #1521947: When checking for overflow, ``PyOS_strtol()`` used some | |
| operations on signed longs that are formally undefined by C. | |
| Unfortunately, at least one compiler now cares about that, so complicated | |
| the code to make that compiler happy again. | |
| - Bug #1524310: Properly report errors from FindNextFile in os.listdir. | |
| - Patch #1232023: Stop including current directory in search | |
| path on Windows. | |
| - Fix some potential crashes found with failmalloc. | |
| - Fix warnings reported by Klocwork's static analysis tool. | |
| - Bug #1512814, Fix incorrect lineno's when code within a function | |
| had more than 255 blank lines. | |
| - Patch #1521179: Python now accepts the standard options ``--help`` and | |
| ``--version`` as well as ``/?`` on Windows. | |
| - Bug #1520864: unpacking singleton tuples in a 'for' loop (for x, in) works | |
| again. Fixing this problem required changing the .pyc magic number. | |
| This means that .pyc files generated before 2.5b3 will be regenerated. | |
| - Bug #1524317: Compiling Python ``--without-threads`` failed. | |
| The Python core compiles again, and, in a build without threads, the | |
| new ``sys._current_frames()`` returns a dictionary with one entry, | |
| mapping the faux "thread id" 0 to the current frame. | |
| - Bug #1525447: build on MacOS X on a case-sensitive filesystem. | |
| Library | |
| ------- | |
| - Fix #1693149. Now you can pass several modules separated by | |
| comma to trace.py in the same --ignore-module option. | |
| - Correction of patch #1455898: In the mbcs decoder, set final=False | |
| for stream decoder, but final=True for the decode function. | |
| - os.urandom no longer masks unrelated exceptions like SystemExit or | |
| KeyboardInterrupt. | |
| - Bug #1525866: Don't copy directory stat times in | |
| shutil.copytree on Windows | |
| - Bug #1002398: The documentation for os.path.sameopenfile now correctly | |
| refers to file descriptors, not file objects. | |
| - The renaming of the xml package to xmlcore, and the import hackery done | |
| to make it appear at both names, has been removed. Bug #1511497, | |
| #1513611, and probably others. | |
| - Bug #1441397: The compiler module now recognizes module and function | |
| docstrings correctly as it did in Python 2.4. | |
| - Bug #1529297: The rewrite of doctest for Python 2.4 unintentionally | |
| lost that tests are sorted by name before being run. This rarely | |
| matters for well-written tests, but can create baffling symptoms if | |
| side effects from one test to the next affect outcomes. ``DocTestFinder`` | |
| has been changed to sort the list of tests it returns. | |
| - The distutils version has been changed to 2.5.0, and is now kept | |
| in sync with sys.version_info[:3]. | |
| - Bug #978833: Really close underlying socket in _socketobject.close. | |
| - Bug #1459963: urllib and urllib2 now normalize HTTP header names with | |
| title(). | |
| - Patch #1525766: In pkgutil.walk_packages, correctly pass the onerror callback | |
| to recursive calls and call it with the failing package name. | |
| - Bug #1525817: Don't truncate short lines in IDLE's tool tips. | |
| - Patch #1515343: Fix printing of deprecated string exceptions with a | |
| value in the traceback module. | |
| - Resync optparse with Optik 1.5.3: minor tweaks for/to tests. | |
| - Patch #1524429: Use repr() instead of backticks in Tkinter again. | |
| - Bug #1520914: Change time.strftime() to accept a zero for any position in its | |
| argument tuple. For arguments where zero is illegal, the value is forced to | |
| the minimum value that is correct. This is to support an undocumented but | |
| common way people used to fill in inconsequential information in the time | |
| tuple pre-2.4. | |
| - Patch #1220874: Update the binhex module for Mach-O. | |
| - The email package has improved RFC 2231 support, specifically for | |
| recognizing the difference between encoded (name*0*=<blah>) and non-encoded | |
| (name*0=<blah>) parameter continuations. This may change the types of | |
| values returned from email.message.Message.get_param() and friends. | |
| Specifically in some cases where non-encoded continuations were used, | |
| get_param() used to return a 3-tuple of (None, None, string) whereas now it | |
| will just return the string (since non-encoded continuations don't have | |
| charset and language parts). | |
| Also, whereas % values were decoded in all parameter continuations, they are | |
| now only decoded in encoded parameter parts. | |
| - Bug #1517990: IDLE keybindings on MacOS X now work correctly | |
| - Bug #1517996: IDLE now longer shows the default Tk menu when a | |
| path browser, class browser or debugger is the frontmost window on MacOS X | |
| - Patch #1520294: Support for getset and member descriptors in types.py, | |
| inspect.py, and pydoc.py. Specifically, this allows for querying the type | |
| of an object against these built-in types and more importantly, for getting | |
| their docstrings printed in the interactive interpreter's help() function. | |
| Extension Modules | |
| ----------------- | |
| - Patch #1519025 and bug #926423: If a KeyboardInterrupt occurs during | |
| a socket operation on a socket with a timeout, the exception will be | |
| caught correctly. Previously, the exception was not caught. | |
| - Patch #1529514: The _ctypes extension is now compiled on more | |
| openbsd target platforms. | |
| - The ``__reduce__()`` method of the new ``collections.defaultdict`` had | |
| a memory leak, affecting pickles and deep copies. | |
| - Bug #1471938: Fix curses module build problem on Solaris 8; patch by | |
| Paul Eggert. | |
| - Patch #1448199: Release interpreter lock in _winreg.ConnectRegistry. | |
| - Patch #1521817: Index range checking on ctypes arrays containing | |
| exactly one element enabled again. This allows iterating over these | |
| arrays, without the need to check the array size before. | |
| - Bug #1521375: When the code in ctypes.util.find_library was | |
| run with root privileges, it could overwrite or delete | |
| /dev/null in certain cases; this is now fixed. | |
| - Bug #1467450: On Mac OS X 10.3, RTLD_GLOBAL is now used as the | |
| default mode for loading shared libraries in ctypes. | |
| - Because of a misspelled preprocessor symbol, ctypes was always | |
| compiled without thread support; this is now fixed. | |
| - pybsddb Bug #1527939: bsddb module DBEnv dbremove and dbrename | |
| methods now allow their database parameter to be None as the | |
| sleepycat API allows. | |
| - Bug #1526460: Fix socketmodule compile on NetBSD as it has a different | |
| bluetooth API compared with Linux and FreeBSD. | |
| Tests | |
| ----- | |
| - Bug #1501330: Change test_ossaudiodev to be much more tolerant in terms of | |
| how long the test file should take to play. Now accepts taking 2.93 secs | |
| (exact time) +/- 10% instead of the hard-coded 3.1 sec. | |
| - Patch #1529686: The standard tests ``test_defaultdict``, ``test_iterlen``, | |
| ``test_uuid`` and ``test_email_codecs`` didn't actually run any tests when | |
| run via ``regrtest.py``. Now they do. | |
| Build | |
| ----- | |
| - Bug #1439538: Drop usage of test -e in configure as it is not portable. | |
| Mac | |
| --- | |
| - PythonLauncher now works correctly when the path to the script contains | |
| characters that are treated specially by the shell (such as quotes). | |
| - Bug #1527397: PythonLauncher now launches scripts with the working directory | |
| set to the directory that contains the script instead of the user home | |
| directory. That latter was an implementation accident and not what users | |
| expect. | |
| What's New in Python 2.5 beta 2? | |
| ================================ | |
| *Release date: 11-JUL-2006* | |
| Core and builtins | |
| ----------------- | |
| - Bug #1441486: The literal representation of -(sys.maxint - 1) | |
| again evaluates to an int object, not a long. | |
| - Bug #1501934: The scope of global variables that are locally assigned | |
| using augmented assignment is now correctly determined. | |
| - Bug #927248: Recursive method-wrapper objects can now safely | |
| be released. | |
| - Bug #1417699: Reject locale-specific decimal point in float() | |
| and atof(). | |
| - Bug #1511381: codec_getstreamcodec() in codec.c is corrected to | |
| omit a default "error" argument for NULL pointer. This allows | |
| the parser to take a codec from cjkcodecs again. | |
| - Bug #1519018: 'as' is now validated properly in import statements. | |
| - On 64 bit systems, int literals that use less than 64 bits are | |
| now ints rather than longs. | |
| - Bug #1512814, Fix incorrect lineno's when code at module scope | |
| started after line 256. | |
| - New function ``sys._current_frames()`` returns a dict mapping thread | |
| id to topmost thread stack frame. This is for expert use, and is | |
| especially useful for debugging application deadlocks. The functionality | |
| was previously available in Fazal Majid's ``threadframe`` extension | |
| module, but it wasn't possible to do this in a wholly threadsafe way from | |
| an extension. | |
| Library | |
| ------- | |
| - Bug #1257728: Mention Cygwin in distutils error message about a missing | |
| VS 2003. | |
| - Patch #1519566: Update turtle demo, make begin_fill idempotent. | |
| - Bug #1508010: msvccompiler now requires the DISTUTILS_USE_SDK | |
| environment variable to be set in order to the SDK environment | |
| for finding the compiler, include files, etc. | |
| - Bug #1515998: Properly generate logical ids for files in bdist_msi. | |
| - warnings.py now ignores ImportWarning by default | |
| - string.Template() now correctly handles tuple-values. Previously, | |
| multi-value tuples would raise an exception and single-value tuples would | |
| be treated as the value they contain, instead. | |
| - Bug #822974: Honor timeout in telnetlib.{expect,read_until} | |
| even if some data are received. | |
| - Bug #1267547: Put proper recursive setup.py call into the | |
| spec file generated by bdist_rpm. | |
| - Bug #1514693: Update turtle's heading when switching between | |
| degrees and radians. | |
| - Reimplement turtle.circle using a polyline, to allow correct | |
| filling of arcs. | |
| - Bug #1514703: Only setup canvas window in turtle when the canvas | |
| is created. | |
| - Bug #1513223: .close() of a _socketobj now releases the underlying | |
| socket again, which then gets closed as it becomes unreferenced. | |
| - Bug #1504333: Make sgmllib support angle brackets in quoted | |
| attribute values. | |
| - Bug #853506: Fix IPv6 address parsing in unquoted attributes in | |
| sgmllib ('[' and ']' were not accepted). | |
| - Fix a bug in the turtle module's end_fill function. | |
| - Bug #1510580: The 'warnings' module improperly required that a Warning | |
| category be either a types.ClassType and a subclass of Warning. The proper | |
| check is just that it is a subclass with Warning as the documentation states. | |
| - The compiler module now correctly compiles the new try-except-finally | |
| statement (bug #1509132). | |
| - The wsgiref package is now installed properly on Unix. | |
| - A bug was fixed in logging.config.fileConfig() which caused a crash on | |
| shutdown when fileConfig() was called multiple times. | |
| - The sqlite3 module did cut off data from the SQLite database at the first | |
| null character before sending it to a custom converter. This has been fixed | |
| now. | |
| Extension Modules | |
| ----------------- | |
| - #1494314: Fix a regression with high-numbered sockets in 2.4.3. This | |
| means that select() on sockets > FD_SETSIZE (typically 1024) work again. | |
| The patch makes sockets use poll() internally where available. | |
| - Assigning None to pointer type fields in ctypes structures possible | |
| overwrote the wrong fields, this is fixed now. | |
| - Fixed a segfault in _ctypes when ctypes.wintypes were imported | |
| on non-Windows platforms. | |
| - Bug #1518190: The ctypes.c_void_p constructor now accepts any | |
| integer or long, without range checking. | |
| - Patch #1517790: It is now possible to use custom objects in the ctypes | |
| foreign function argtypes sequence as long as they provide a from_param | |
| method, no longer is it required that the object is a ctypes type. | |
| - The '_ctypes' extension module now works when Python is configured | |
| with the --without-threads option. | |
| - Bug #1513646: os.access on Windows now correctly determines write | |
| access, again. | |
| - Bug #1512695: cPickle.loads could crash if it was interrupted with | |
| a KeyboardInterrupt. | |
| - Bug #1296433: parsing XML with a non-default encoding and | |
| a CharacterDataHandler could crash the interpreter in pyexpat. | |
| - Patch #1516912: improve Modules support for OpenVMS. | |
| Build | |
| ----- | |
| - Automate Windows build process for the Win64 SSL module. | |
| - 'configure' now detects the zlib library the same way as distutils. | |
| Previously, the slight difference could cause compilation errors of the | |
| 'zlib' module on systems with more than one version of zlib. | |
| - The MSI compileall step was fixed to also support a TARGETDIR | |
| with spaces in it. | |
| - Bug #1517388: sqlite3.dll is now installed on Windows independent | |
| of Tcl/Tk. | |
| - Bug #1513032: 'make install' failed on FreeBSD 5.3 due to lib-old | |
| trying to be installed even though it's empty. | |
| Tests | |
| ----- | |
| - Call os.waitpid() at the end of tests that spawn child processes in order | |
| to minimize resources (zombies). | |
| Documentation | |
| ------------- | |
| - Cover ImportWarning, PendingDeprecationWarning and simplefilter() in the | |
| documentation for the warnings module. | |
| - Patch #1509163: MS Toolkit Compiler no longer available. | |
| - Patch #1504046: Add documentation for xml.etree. | |
| What's New in Python 2.5 beta 1? | |
| ================================ | |
| *Release date: 20-JUN-2006* | |
| Core and builtins | |
| ----------------- | |
| - Patch #1507676: Error messages returned by invalid abstract object operations | |
| (such as iterating over an integer) have been improved and now include the | |
| type of the offending object to help with debugging. | |
| - Bug #992017: A classic class that defined a __coerce__() method that returned | |
| its arguments swapped would infinitely recurse and segfault the interpreter. | |
| - Fix the socket tests so they can be run concurrently. | |
| - Removed 5 integers from C frame objects (PyFrameObject). | |
| f_nlocals, f_ncells, f_nfreevars, f_stack_size, f_restricted. | |
| - Bug #532646: object.__call__() will continue looking for the __call__ | |
| attribute on objects until one without one is found. This leads to recursion | |
| when you take a class and set its __call__ attribute to an instance of the | |
| class. Originally fixed for classic classes, but this fix is for new-style. | |
| Removes the infinite_rec_3 crasher. | |
| - The string and unicode methods startswith() and endswith() now accept | |
| a tuple of prefixes/suffixes to look for. Implements RFE #1491485. | |
| - Buffer objects, at the C level, never used the char buffer | |
| implementation even when the char buffer for the wrapped object was | |
| explicitly requested (originally returned the read or write buffer). | |
| Now a TypeError is raised if the char buffer is not present but is | |
| requested. | |
| - Patch #1346214: Statements like "if 0: suite" are now again optimized | |
| away like they were in Python 2.4. | |
| - Builtin exceptions are now full-blown new-style classes instead of | |
| instances pretending to be classes, which speeds up exception handling | |
| by about 80% in comparison to 2.5a2. | |
| - Patch #1494554: Update unicodedata.numeric and unicode.isnumeric to | |
| Unicode 4.1. | |
| - Patch #921466: sys.path_importer_cache is now used to cache valid and | |
| invalid file paths for the built-in import machinery which leads to | |
| fewer open calls on startup. | |
| - Patch #1442927: ``long(str, base)`` is now up to 6x faster for non-power- | |
| of-2 bases. The largest speedup is for inputs with about 1000 decimal | |
| digits. Conversion from non-power-of-2 bases remains quadratic-time in | |
| the number of input digits (it was and remains linear-time for bases | |
| 2, 4, 8, 16 and 32). | |
| - Bug #1334662: ``int(string, base)`` could deliver a wrong answer | |
| when ``base`` was not 2, 4, 8, 10, 16 or 32, and ``string`` represented | |
| an integer close to ``sys.maxint``. This was repaired by patch | |
| #1335972, which also gives a nice speedup. | |
| - Patch #1337051: reduced size of frame objects. | |
| - PyErr_NewException now accepts a tuple of base classes as its | |
| "base" parameter. | |
| - Patch #876206: function call speedup by retaining allocated frame | |
| objects. | |
| - Bug #1462152: file() now checks more thoroughly for invalid mode | |
| strings and removes a possible "U" before passing the mode to the | |
| C library function. | |
| - Patch #1488312, Fix memory alignment problem on SPARC in unicode | |
| - Bug #1487966: Fix SystemError with conditional expression in assignment | |
| - WindowsError now has two error code attributes: errno, which carries | |
| the error values from errno.h, and winerror, which carries the error | |
| values from winerror.h. Previous versions put the winerror.h values | |
| (from GetLastError()) into the errno attribute. | |
| - Patch #1475845: Raise IndentationError for unexpected indent. | |
| - Patch #1479181: split open() and file() from being aliases for each other. | |
| - Patch #1497053 & bug #1275608: Exceptions occurring in ``__eq__()`` | |
| methods were always silently ignored by dictionaries when comparing keys. | |
| They are now passed through (except when using the C API function | |
| ``PyDict_GetItem()``, whose semantics did not change). | |
| - Bug #1456209: In some obscure cases it was possible for a class with a | |
| custom ``__eq__()`` method to confuse dict internals when class instances | |
| were used as a dict's keys and the ``__eq__()`` method mutated the dict. | |
| No, you don't have any code that did this ;-) | |
| Extension Modules | |
| ----------------- | |
| - Bug #1295808: expat symbols should be namespaced in pyexpat | |
| - Patch #1462338: Upgrade pyexpat to expat 2.0.0 | |
| - Change binascii.hexlify to accept a read-only buffer instead of only a char | |
| buffer and actually follow its documentation. | |
| - Fixed a potentially invalid memory access of CJKCodecs' shift-jis decoder. | |
| - Patch #1478788 (modified version): The functional extension module has | |
| been renamed to _functools and a functools Python wrapper module added. | |
| This provides a home for additional function related utilities that are | |
| not specifically about functional programming. See PEP 309. | |
| - Patch #1493701: performance enhancements for struct module. | |
| - Patch #1490224: time.altzone is now set correctly on Cygwin. | |
| - Patch #1435422: zlib's compress and decompress objects now have a | |
| copy() method. | |
| - Patch #1454481: thread stack size is now tunable at runtime for thread | |
| enabled builds on Windows and systems with Posix threads support. | |
| - On Win32, os.listdir now supports arbitrarily-long Unicode path names | |
| (up to the system limit of 32K characters). | |
| - Use Win32 API to implement os.{access,chdir,chmod,mkdir,remove,rename,rmdir,utime}. | |
| As a result, these functions now raise WindowsError instead of OSError. | |
| - ``time.clock()`` on Win64 should use the high-performance Windows | |
| ``QueryPerformanceCounter()`` now (as was already the case on 32-bit | |
| Windows platforms). | |
| - Calling Tk_Init twice is refused if the first call failed as that | |
| may deadlock. | |
| - bsddb: added the DB_ARCH_REMOVE flag and fixed db.DBEnv.log_archive() to | |
| accept it without potentially using an uninitialized pointer. | |
| - bsddb: added support for the DBEnv.log_stat() and DBEnv.lsn_reset() methods | |
| assuming BerkeleyDB >= 4.0 and 4.4 respectively. [pybsddb project SF | |
| patch numbers 1494885 and 1494902] | |
| - bsddb: added an interface for the BerkeleyDB >= 4.3 DBSequence class. | |
| [pybsddb project SF patch number 1466734] | |
| - bsddb: fix DBCursor.pget() bug with keyword argument names when no data | |
| parameter is supplied. [SF pybsddb bug #1477863] | |
| - bsddb: the __len__ method of a DB object has been fixed to return correct | |
| results. It could previously incorrectly return 0 in some cases. | |
| Fixes SF bug 1493322 (pybsddb bug 1184012). | |
| - bsddb: the bsddb.dbtables Modify method now raises the proper error and | |
| aborts the db transaction safely when a modifier callback fails. | |
| Fixes SF python patch/bug #1408584. | |
| - bsddb: multithreaded DB access using the simple bsddb module interface | |
| now works reliably. It has been updated to use automatic BerkeleyDB | |
| deadlock detection and the bsddb.dbutils.DeadlockWrap wrapper to retry | |
| database calls that would previously deadlock. [SF python bug #775414] | |
| - Patch #1446489: add support for the ZIP64 extensions to zipfile. | |
| - Patch #1506645: add Python wrappers for the curses functions | |
| is_term_resized, resize_term and resizeterm. | |
| Library | |
| ------- | |
| - Patch #815924: Restore ability to pass type= and icon= in tkMessageBox | |
| functions. | |
| - Patch #812986: Update turtle output even if not tracing. | |
| - Patch #1494750: Destroy master after deleting children in | |
| Tkinter.BaseWidget. | |
| - Patch #1096231: Add ``default`` argument to Tkinter.Wm.wm_iconbitmap. | |
| - Patch #763580: Add name and value arguments to Tkinter variable | |
| classes. | |
| - Bug #1117556: SimpleHTTPServer now tries to find and use the system's | |
| mime.types file for determining MIME types. | |
| - Bug #1339007: Shelf objects now don't raise an exception in their | |
| __del__ method when initialization failed. | |
| - Patch #1455898: The MBCS codec now supports the incremental mode for | |
| double-byte encodings. | |
| - ``difflib``'s ``SequenceMatcher.get_matching_blocks()`` was changed to | |
| guarantee that adjacent triples in the return list always describe | |
| non-adjacent blocks. Previously, a pair of matching blocks could end | |
| up being described by multiple adjacent triples that formed a partition | |
| of the matching pair. | |
| - Bug #1498146: fix optparse to handle Unicode strings in option help, | |
| description, and epilog. | |
| - Bug #1366250: minor optparse documentation error. | |
| - Bug #1361643: fix textwrap.dedent() so it handles tabs appropriately; | |
| clarify docs. | |
| - The wsgiref package has been added to the standard library. | |
| - The functions update_wrapper() and wraps() have been added to the functools | |
| module. These make it easier to copy relevant metadata from the original | |
| function when writing wrapper functions. | |
| - The optional ``isprivate`` argument to ``doctest.testmod()``, and the | |
| ``doctest.is_private()`` function, both deprecated in 2.4, were removed. | |
| - Patch #1359618: Speed up charmap encoder by using a trie structure | |
| for lookup. | |
| - The functions in the ``pprint`` module now sort dictionaries by key | |
| before computing the display. Before 2.5, ``pprint`` sorted a dictionary | |
| if and only if its display required more than one line, although that | |
| wasn't documented. The new behavior increases predictability; e.g., | |
| using ``pprint.pprint(a_dict)`` in a doctest is now reliable. | |
| - Patch #1497027: try HTTP digest auth before basic auth in urllib2 | |
| (thanks for J. J. Lee). | |
| - Patch #1496206: improve urllib2 handling of passwords with respect to | |
| default HTTP and HTTPS ports. | |
| - Patch #1080727: add "encoding" parameter to doctest.DocFileSuite. | |
| - Patch #1281707: speed up gzip.readline. | |
| - Patch #1180296: Two new functions were added to the locale module: | |
| format_string() to get the effect of "format % items" but locale-aware, | |
| and currency() to format a monetary number with currency sign. | |
| - Patch #1486962: Several bugs in the turtle Tk demo module were fixed | |
| and several features added, such as speed and geometry control. | |
| - Patch #1488881: add support for external file objects in bz2 compressed | |
| tarfiles. | |
| - Patch #721464: pdb.Pdb instances can now be given explicit stdin and | |
| stdout arguments, making it possible to redirect input and output | |
| for remote debugging. | |
| - Patch #1484695: Update the tarfile module to version 0.8. This fixes | |
| a couple of issues, notably handling of long file names using the | |
| GNU LONGNAME extension. | |
| - Patch #1478292. ``doctest.register_optionflag(name)`` shouldn't create a | |
| new flag when ``name`` is already the name of an option flag. | |
| - Bug #1385040: don't allow "def foo(a=1, b): pass" in the compiler | |
| package. | |
| - Patch #1472854: make the rlcompleter.Completer class usable on non- | |
| UNIX platforms. | |
| - Patch #1470846: fix urllib2 ProxyBasicAuthHandler. | |
| - Bug #1472827: correctly escape newlines and tabs in attribute values in | |
| the saxutils.XMLGenerator class. | |
| Build | |
| ----- | |
| - Bug #1502728: Correctly link against librt library on HP-UX. | |
| - OpenBSD 3.9 is supported now. | |
| - Patch #1492356: Port to Windows CE. | |
| - Bug/Patch #1481770: Use .so extension for shared libraries on HP-UX for ia64. | |
| - Patch #1471883: Add --enable-universalsdk. | |
| C API | |
| ----- | |
| Tests | |
| ----- | |
| Tools | |
| ----- | |
| Documentation | |
| ------------- | |
| What's New in Python 2.5 alpha 2? | |
| ================================= | |
| *Release date: 27-APR-2006* | |
| Core and builtins | |
| ----------------- | |
| - Bug #1465834: 'bdist_wininst preinstall script support' was fixed | |
| by converting these apis from macros into exported functions again: | |
| PyParser_SimpleParseFile PyParser_SimpleParseString PyRun_AnyFile | |
| PyRun_AnyFileEx PyRun_AnyFileFlags PyRun_File PyRun_FileEx | |
| PyRun_FileFlags PyRun_InteractiveLoop PyRun_InteractiveOne | |
| PyRun_SimpleFile PyRun_SimpleFileEx PyRun_SimpleString | |
| PyRun_String Py_CompileString | |
| - Under COUNT_ALLOCS, types are not necessarily immortal anymore. | |
| - All uses of PyStructSequence_InitType have been changed to initialize | |
| the type objects only once, even if the interpreter is initialized | |
| multiple times. | |
| - Bug #1454485, array.array('u') could crash the interpreter. This was | |
| due to PyArgs_ParseTuple(args, 'u#', ...) trying to convert buffers (strings) | |
| to unicode when it didn't make sense. 'u#' now requires a unicode string. | |
| - Py_UNICODE is unsigned. It was always documented as unsigned, but | |
| due to a bug had a signed value in previous versions. | |
| - Patch #837242: ``id()`` of any Python object always gives a positive | |
| number now, which might be a long integer. ``PyLong_FromVoidPtr`` and | |
| ``PyLong_AsVoidPtr`` have been changed accordingly. Note that it has | |
| never been correct to implement a ``__hash()__`` method that returns the | |
| ``id()`` of an object: | |
| def __hash__(self): | |
| return id(self) # WRONG | |
| because a hash result must be a (short) Python int but it was always | |
| possible for ``id()`` to return a Python long. However, because ``id()`` | |
| could return negative values before, on a 32-bit box an ``id()`` result | |
| was always usable as a hash value before this patch. That's no longer | |
| necessarily so. | |
| - Python on OS X 10.3 and above now uses dlopen() (via dynload_shlib.c) | |
| to load extension modules and now provides the dl module. As a result, | |
| sys.setdlopenflags() now works correctly on these systems. (SF patch | |
| #1454844) | |
| - Patch #1463867: enhanced garbage collection to allow cleanup of cycles | |
| involving generators that have paused outside of any ``try`` or ``with`` | |
| blocks. (In 2.5a1, a paused generator that was part of a reference | |
| cycle could not be garbage collected, regardless of whether it was | |
| paused in a ``try`` or ``with`` block.) | |
| Extension Modules | |
| ----------------- | |
| - Patch #1191065: Fix preprocessor problems on systems where recvfrom | |
| is a macro. | |
| - Bug #1467952: os.listdir() now correctly raises an error if readdir() | |
| fails with an error condition. | |
| - Fixed bsddb.db.DBError derived exceptions so they can be unpickled. | |
| - Bug #1117761: bsddb.*open() no longer raises an exception when using | |
| the cachesize parameter. | |
| - Bug #1149413: bsddb.*open() no longer raises an exception when using | |
| a temporary db (file=None) with the 'n' flag to truncate on open. | |
| - Bug #1332852: bsddb module minimum BerkeleyDB version raised to 3.3 | |
| as older versions cause excessive test failures. | |
| - Patch #1062014: AF_UNIX sockets under Linux have a special | |
| abstract namespace that is now fully supported. | |
| Library | |
| ------- | |
| - Bug #1223937: subprocess.CalledProcessError reports the exit status | |
| of the process using the returncode attribute, instead of | |
| abusing errno. | |
| - Patch #1475231: ``doctest`` has a new ``SKIP`` option, which causes | |
| a doctest to be skipped (the code is not run, and the expected output | |
| or exception is ignored). | |
| - Fixed contextlib.nested to cope with exceptions being raised and | |
| caught inside exit handlers. | |
| - Updated optparse module to Optik 1.5.1 (allow numeric constants in | |
| hex, octal, or binary; add ``append_const`` action; keep going if | |
| gettext cannot be imported; added ``OptionParser.destroy()`` method; | |
| added ``epilog`` for better help generation). | |
| - Bug #1473760: ``tempfile.TemporaryFile()`` could hang on Windows, when | |
| called from a thread spawned as a side effect of importing a module. | |
| - The pydoc module now supports documenting packages contained in | |
| .zip or .egg files. | |
| - The pkgutil module now has several new utility functions, such | |
| as ``walk_packages()`` to support working with packages that are either | |
| in the filesystem or zip files. | |
| - The mailbox module can now modify and delete messages from | |
| mailboxes, in addition to simply reading them. Thanks to Gregory | |
| K. Johnson for writing the code, and to the 2005 Google Summer of | |
| Code for funding his work. | |
| - The ``__del__`` method of class ``local`` in module ``_threading_local`` | |
| returned before accomplishing any of its intended cleanup. | |
| - Patch #790710: Add breakpoint command lists in pdb. | |
| - Patch #1063914: Add Tkinter.Misc.clipboard_get(). | |
| - Patch #1191700: Adjust column alignment in bdb breakpoint lists. | |
| - SimpleXMLRPCServer relied on the fcntl module, which is unavailable on | |
| Windows. Bug #1469163. | |
| - The warnings, linecache, inspect, traceback, site, and doctest modules | |
| were updated to work correctly with modules imported from zipfiles or | |
| via other PEP 302 __loader__ objects. | |
| - Patch #1467770: Reduce usage of subprocess._active to processes which | |
| the application hasn't waited on. | |
| - Patch #1462222: Fix Tix.Grid. | |
| - Fix exception when doing glob.glob('anything*/') | |
| - The pstats.Stats class accepts an optional stream keyword argument to | |
| direct output to an alternate file-like object. | |
| Build | |
| ----- | |
| - The Makefile now has a reindent target, which runs reindent.py on | |
| the library. | |
| - Patch #1470875: Building Python with MS Free Compiler | |
| - Patch #1161914: Add a python-config script. | |
| - Patch #1324762:Remove ccpython.cc; replace --with-cxx with | |
| --with-cxx-main. Link with C++ compiler only if --with-cxx-main was | |
| specified. (Can be overridden by explicitly setting LINKCC.) Decouple | |
| CXX from --with-cxx-main, see description in README. | |
| - Patch #1429775: Link extension modules with the shared libpython. | |
| - Fixed a libffi build problem on MIPS systems. | |
| - ``PyString_FromFormat``, ``PyErr_Format``, and ``PyString_FromFormatV`` | |
| now accept formats "%u" for unsigned ints, "%lu" for unsigned longs, | |
| and "%zu" for unsigned integers of type ``size_t``. | |
| Tests | |
| ----- | |
| - test_contextlib now checks contextlib.nested can cope with exceptions | |
| being raised and caught inside exit handlers. | |
| - test_cmd_line now checks operation of the -m and -c command switches | |
| - The test_contextlib test in 2.5a1 wasn't actually run unless you ran | |
| it separately and by hand. It also wasn't cleaning up its changes to | |
| the current Decimal context. | |
| - regrtest.py now has a -M option to run tests that test the new limits of | |
| containers, on 64-bit architectures. Running these tests is only sensible | |
| on 64-bit machines with more than two gigabytes of memory. The argument | |
| passed is the maximum amount of memory for the tests to use. | |
| Tools | |
| ----- | |
| - Added the Python benchmark suite pybench to the Tools/ directory; | |
| contributed by Marc-Andre Lemburg. | |
| Documentation | |
| ------------- | |
| - Patch #1473132: Improve docs for ``tp_clear`` and ``tp_traverse``. | |
| - PEP 343: Added Context Types section to the library reference | |
| and attempted to bring other PEP 343 related documentation into | |
| line with the implementation and/or python-dev discussions. | |
| - Bug #1337990: clarified that ``doctest`` does not support examples | |
| requiring both expected output and an exception. | |
| What's New in Python 2.5 alpha 1? | |
| ================================= | |
| *Release date: 05-APR-2006* | |
| Core and builtins | |
| ----------------- | |
| - PEP 338: -m command line switch now delegates to runpy.run_module | |
| allowing it to support modules in packages and zipfiles | |
| - On Windows, .DLL is not an accepted file name extension for | |
| extension modules anymore; extensions are only found if they | |
| end in .PYD. | |
| - Bug #1421664: sys.stderr.encoding is now set to the same value as | |
| sys.stdout.encoding. | |
| - __import__ accepts keyword arguments. | |
| - Patch #1460496: round() now accepts keyword arguments. | |
| - Fixed bug #1459029 - unicode reprs were double-escaped. | |
| - Patch #1396919: The system scope threads are re-enabled on FreeBSD | |
| 5.4 and later versions. | |
| - Bug #1115379: Compiling a Unicode string with an encoding declaration | |
| now gives a SyntaxError. | |
| - Previously, Python code had no easy way to access the contents of a | |
| cell object. Now, a ``cell_contents`` attribute has been added | |
| (closes patch #1170323). | |
| - Patch #1123430: Python's small-object allocator now returns an arena to | |
| the system ``free()`` when all memory within an arena becomes unused | |
| again. Prior to Python 2.5, arenas (256KB chunks of memory) were never | |
| freed. Some applications will see a drop in virtual memory size now, | |
| especially long-running applications that, from time to time, temporarily | |
| use a large number of small objects. Note that when Python returns an | |
| arena to the platform C's ``free()``, there's no guarantee that the | |
| platform C library will in turn return that memory to the operating system. | |
| The effect of the patch is to stop making that impossible, and in tests it | |
| appears to be effective at least on Microsoft C and gcc-based systems. | |
| Thanks to Evan Jones for hard work and patience. | |
| - Patch #1434038: property() now uses the getter's docstring if there is | |
| no "doc" argument given. This makes it possible to legitimately use | |
| property() as a decorator to produce a read-only property. | |
| - PEP 357, patch 1436368: add an __index__ method to int/long and a matching | |
| nb_index slot to the PyNumberMethods struct. The slot is consulted instead | |
| of requiring an int or long in slicing and a few other contexts, enabling | |
| other objects (e.g. Numeric Python's integers) to be used as slice indices. | |
| - Fixed various bugs reported by Coverity's Prevent tool. | |
| - PEP 352, patch #1104669: Make exceptions new-style objects. Introduced the | |
| new exception base class, BaseException, which has a new message attribute. | |
| KeyboardInterrupt and SystemExit to directly inherit from BaseException now. | |
| Raising a string exception now raises a DeprecationWarning. | |
| - Patch #1438387, PEP 328: relative and absolute imports. Imports can now be | |
| explicitly relative, using 'from .module import name' to mean 'from the same | |
| package as this module is in. Imports without dots still default to the | |
| old relative-then-absolute, unless 'from __future__ import | |
| absolute_import' is used. | |
| - Properly check if 'warnings' raises an exception (usually when a filter set | |
| to "error" is triggered) when raising a warning for raising string | |
| exceptions. | |
| - CO_GENERATOR_ALLOWED is no longer defined. This behavior is the default. | |
| The name was removed from Include/code.h. | |
| - PEP 308: conditional expressions were added: (x if cond else y). | |
| - Patch 1433928: | |
| - The copy module now "copies" function objects (as atomic objects). | |
| - dict.__getitem__ now looks for a __missing__ hook before raising | |
| KeyError. | |
| - PEP 343: with statement implemented. Needs ``from __future__ import | |
| with_statement``. Use of 'with' as a variable will generate a warning. | |
| Use of 'as' as a variable will also generate a warning (unless it's | |
| part of an import statement). | |
| The following objects have __context__ methods: | |
| - The built-in file type. | |
| - The thread.LockType type. | |
| - The following types defined by the threading module: | |
| Lock, RLock, Condition, Semaphore, BoundedSemaphore. | |
| - The decimal.Context class. | |
| - Fix the encodings package codec search function to only search | |
| inside its own package. Fixes problem reported in patch #1433198. | |
| Note: Codec packages should implement and register their own | |
| codec search function. PEP 100 has the details. | |
| - PEP 353: Using ``Py_ssize_t`` as the index type. | |
| - ``PYMALLOC_DEBUG`` builds now add ``4*sizeof(size_t)`` bytes of debugging | |
| info to each allocated block, since the ``Py_ssize_t`` changes (PEP 353) | |
| now allow Python to make use of memory blocks exceeding 2**32 bytes for | |
| some purposes on 64-bit boxes. A ``PYMALLOC_DEBUG`` build was limited | |
| to 4-byte allocations before. | |
| - Patch #1400181, fix unicode string formatting to not use the locale. | |
| This is how string objects work. u'%f' could use , instead of . | |
| for the decimal point. Now both strings and unicode always use periods. | |
| - Bug #1244610, #1392915, fix build problem on OpenBSD 3.7 and 3.8. | |
| configure would break checking curses.h. | |
| - Bug #959576: The pwd module is now built in. This allows Python to be | |
| built on UNIX platforms without $HOME set. | |
| - Bug #1072182, fix some potential problems if characters are signed. | |
| - Bug #889500, fix line number on SyntaxWarning for global declarations. | |
| - Bug #1378022, UTF-8 files with a leading BOM crashed the interpreter. | |
| - Support for converting hex strings to floats no longer works. | |
| This was not portable. float('0x3') now raises a ValueError. | |
| - Patch #1382163: Expose Subversion revision number to Python. New C API | |
| function Py_GetBuildNumber(). New attribute sys.subversion. Build number | |
| is now displayed in interactive prompt banner. | |
| - Implementation of PEP 341 - Unification of try/except and try/finally. | |
| "except" clauses can now be written together with a "finally" clause in | |
| one try statement instead of two nested ones. Patch #1355913. | |
| - Bug #1379994: Builtin unicode_escape and raw_unicode_escape codec | |
| now encodes backslash correctly. | |
| - Patch #1350409: Work around signal handling bug in Visual Studio 2005. | |
| - Bug #1281408: Py_BuildValue now works correctly even with unsigned longs | |
| and long longs. | |
| - SF Bug #1350188, "setdlopenflags" leads to crash upon "import" | |
| It was possible for dlerror() to return a NULL pointer, so | |
| it will now use a default error message in this case. | |
| - Replaced most Unicode charmap codecs with new ones using the | |
| new Unicode translate string feature in the built-in charmap | |
| codec; the codecs were created from the mapping tables available | |
| at ftp.unicode.org and contain a few updates (e.g. the Mac OS | |
| encodings now include a mapping for the Apple logo) | |
| - Added a few more codecs for Mac OS encodings | |
| - Sped up some Unicode operations. | |
| - A new AST parser implementation was completed. The abstract | |
| syntax tree is available for read-only (non-compile) access | |
| to Python code; an _ast module was added. | |
| - SF bug #1167751: fix incorrect code being produced for generator expressions. | |
| The following code now raises a SyntaxError: foo(a = i for i in range(10)) | |
| - SF Bug #976608: fix SystemError when mtime of an imported file is -1. | |
| - SF Bug #887946: fix segfault when redirecting stdin from a directory. | |
| Provide a warning when a directory is passed on the command line. | |
| - Fix segfault with invalid coding. | |
| - SF bug #772896: unknown encoding results in MemoryError. | |
| - All iterators now have a Boolean value of True. Formerly, some iterators | |
| supported a __len__() method which evaluated to False when the iterator | |
| was empty. | |
| - On 64-bit platforms, when __len__() returns a value that cannot be | |
| represented as a C int, raise OverflowError. | |
| - test__locale is skipped on OS X < 10.4 (only partial locale support is | |
| present). | |
| - SF bug #893549: parsing keyword arguments was broken with a few format | |
| codes. | |
| - Changes donated by Elemental Security to make it work on AIX 5.3 | |
| with IBM's 64-bit compiler (SF patch #1284289). This also closes SF | |
| bug #105470: test_pwd fails on 64bit system (Opteron). | |
| - Changes donated by Elemental Security to make it work on HP-UX 11 on | |
| Itanium2 with HP's 64-bit compiler (SF patch #1225212). | |
| - Disallow keyword arguments for type constructors that don't use them | |
| (fixes bug #1119418). | |
| - Forward UnicodeDecodeError into SyntaxError for source encoding errors. | |
| - SF bug #900092: When tracing (e.g. for hotshot), restore 'return' events for | |
| exceptions that cause a function to exit. | |
| - The implementation of set() and frozenset() was revised to use its | |
| own internal data structure. Memory consumption is reduced by 1/3 | |
| and there are modest speed-ups as well. The API is unchanged. | |
| - SF bug #1238681: freed pointer is used in longobject.c:long_pow(). | |
| - SF bug #1229429: PyObject_CallMethod failed to decrement some | |
| reference counts in some error exit cases. | |
| - SF bug #1185883: Python's small-object memory allocator took over | |
| a block managed by the platform C library whenever a realloc specified | |
| a small new size. However, there's no portable way to know then how | |
| much of the address space following the pointer is valid, so there's no | |
| portable way to copy data from the C-managed block into Python's | |
| small-object space without risking a memory fault. Python's small-object | |
| realloc now leaves such blocks under the control of the platform C | |
| realloc. | |
| - SF bug #1232517: An overflow error was not detected properly when | |
| attempting to convert a large float to an int in os.utime(). | |
| - SF bug #1224347: hex longs now print with lowercase letters just | |
| like their int counterparts. | |
| - SF bug #1163563: the original fix for bug #1010677 ("thread Module | |
| Breaks PyGILState_Ensure()") broke badly in the case of multiple | |
| interpreter states; back out that fix and do a better job (see | |
| http://mail.python.org/pipermail/python-dev/2005-June/054258.html | |
| for a longer write-up of the problem). | |
| - SF patch #1180995: marshal now uses a binary format by default when | |
| serializing floats. | |
| - SF patch #1181301: on platforms that appear to use IEEE 754 floats, | |
| the routines that promise to produce IEEE 754 binary representations | |
| of floats now simply copy bytes around. | |
| - bug #967182: disallow opening files with 'wU' or 'aU' as specified by PEP | |
| 278. | |
| - patch #1109424: int, long, float, complex, and unicode now check for the | |
| proper magic slot for type conversions when subclassed. Previously the | |
| magic slot was ignored during conversion. Semantics now match the way | |
| subclasses of str always behaved. int/long/float, conversion of an instance | |
| to the base class has been moved to the proper nb_* magic slot and out of | |
| PyNumber_*(). | |
| Thanks Walter Dörwald. | |
| - Descriptors defined in C with a PyGetSetDef structure, where the setter is | |
| NULL, now raise an AttributeError when attempting to set or delete the | |
| attribute. Previously a TypeError was raised, but this was inconsistent | |
| with the equivalent pure-Python implementation. | |
| - It is now safe to call PyGILState_Release() before | |
| PyEval_InitThreads() (note that if there is reason to believe there | |
| are multiple threads around you still must call PyEval_InitThreads() | |
| before using the Python API; this fix is for extension modules that | |
| have no way of knowing if Python is multi-threaded yet). | |
| - Typing Ctrl-C whilst raw_input() was waiting in a build with threads | |
| disabled caused a crash. | |
| - Bug #1165306: instancemethod_new allowed the creation of a method | |
| with im_class == im_self == NULL, which caused a crash when called. | |
| - Move exception finalisation later in the shutdown process - this | |
| fixes the crash seen in bug #1165761 | |
| - Added two new builtins, any() and all(). | |
| - Defining a class with empty parentheses is now allowed | |
| (e.g., ``class C(): pass`` is no longer a syntax error). | |
| Patch #1176012 added support to the 'parser' module and 'compiler' package | |
| (thanks to logistix for that added support). | |
| - Patch #1115086: Support PY_LONGLONG in structmember. | |
| - Bug #1155938: new style classes did not check that __init__() was | |
| returning None. | |
| - Patch #802188: Report characters after line continuation character | |
| ('\') with a specific error message. | |
| - Bug #723201: Raise a TypeError for passing bad objects to 'L' format. | |
| - Bug #1124295: the __name__ attribute of file objects was | |
| inadvertently made inaccessible in restricted mode. | |
| - Bug #1074011: closing sys.std{out,err} now causes a flush() and | |
| an ferror() call. | |
| - min() and max() now support key= arguments with the same meaning as in | |
| list.sort(). | |
| - The peephole optimizer now performs simple constant folding in expressions: | |
| (2+3) --> (5). | |
| - set and frozenset objects can now be marshalled. SF #1098985. | |
| - Bug #1077106: Poor argument checking could cause memory corruption | |
| in calls to os.read(). | |
| - The parser did not complain about future statements in illegal | |
| positions. It once again reports a syntax error if a future | |
| statement occurs after anything other than a doc string. | |
| - Change the %s format specifier for str objects so that it returns a | |
| unicode instance if the argument is not an instance of basestring and | |
| calling __str__ on the argument returns a unicode instance. | |
| - Patch #1413181: changed ``PyThreadState_Delete()`` to forget about the | |
| current thread state when the auto-GIL-state machinery knows about | |
| it (since the thread state is being deleted, continuing to remember it | |
| can't help, but can hurt if another thread happens to get created with | |
| the same thread id). | |
| Extension Modules | |
| ----------------- | |
| - Patch #1380952: fix SSL objects timing out on consecutive read()s | |
| - Patch #1309579: wait3 and wait4 were added to the posix module. | |
| - Patch #1231053: The audioop module now supports encoding/decoding of alaw. | |
| In addition, the existing ulaw code was updated. | |
| - RFE #567972: Socket objects' family, type and proto properties are | |
| now exposed via new attributes. | |
| - Everything under lib-old was removed. This includes the following modules: | |
| Para, addpack, cmp, cmpcache, codehack, dircmp, dump, find, fmt, grep, | |
| lockfile, newdir, ni, packmail, poly, rand, statcache, tb, tzparse, | |
| util, whatsound, whrandom, zmod | |
| - The following modules were removed: regsub, reconvert, regex, regex_syntax. | |
| - re and sre were swapped, so help(re) provides full help. importing sre | |
| is deprecated. The undocumented re.engine variable no longer exists. | |
| - Bug #1448490: Fixed a bug that ISO-2022 codecs could not handle | |
| SS2 (single-shift 2) escape sequences correctly. | |
| - The unicodedata module was updated to the 4.1 version of the Unicode | |
| database. The 3.2 version is still available as unicodedata.db_3_2_0 | |
| for applications that require this specific version (such as IDNA). | |
| - The timing module is no longer built by default. It was deprecated | |
| in PEP 4 in Python 2.0 or earlier. | |
| - Patch 1433928: Added a new type, defaultdict, to the collections module. | |
| This uses the new __missing__ hook behavior added to dict (see above). | |
| - Bug #854823: socketmodule now builds on Sun platforms even when | |
| INET_ADDRSTRLEN is not defined. | |
| - Patch #1393157: os.startfile() now has an optional argument to specify | |
| a "command verb" to invoke on the file. | |
| - Bug #876637, prevent stack corruption when socket descriptor | |
| is larger than FD_SETSIZE. | |
| - Patch #1407135, bug #1424041: harmonize mmap behavior of anonymous memory. | |
| mmap.mmap(-1, size) now returns anonymous memory in both Unix and Windows. | |
| mmap.mmap(0, size) should not be used on Windows for anonymous memory. | |
| - Patch #1422385: The nis module now supports access to domains other | |
| than the system default domain. | |
| - Use Win32 API to implement os.stat/fstat. As a result, subsecond timestamps | |
| are reported, the limit on path name lengths is removed, and stat reports | |
| WindowsError now (instead of OSError). | |
| - Add bsddb.db.DBEnv.set_tx_timestamp allowing time based database recovery. | |
| - Bug #1413192, fix seg fault in bsddb if a transaction was deleted | |
| before the env. | |
| - Patch #1103116: Basic AF_NETLINK support. | |
| - Bug #1402308, (possible) segfault when using mmap.mmap(-1, ...) | |
| - Bug #1400822, _curses over{lay,write} doesn't work when passing 6 ints. | |
| Also fix ungetmouse() which did not accept arguments properly. | |
| The code now conforms to the documented signature. | |
| - Bug #1400115, Fix segfault when calling curses.panel.userptr() | |
| without prior setting of the userptr. | |
| - Fix 64-bit problems in bsddb. | |
| - Patch #1365916: fix some unsafe 64-bit mmap methods. | |
| - Bug #1290333: Added a workaround for cjkcodecs' _codecs_cn build | |
| problem on AIX. | |
| - Bug #869197: os.setgroups rejects long integer arguments | |
| - Bug #1346533, select.poll() doesn't raise an error if timeout > sys.maxint | |
| - Bug #1344508, Fix UNIX mmap leaking file descriptors | |
| - Patch #1338314, Bug #1336623: fix tarfile so it can extract | |
| REGTYPE directories from tarfiles written by old programs. | |
| - Patch #1407992, fixes broken bsddb module db associate when using | |
| BerkeleyDB 3.3, 4.0 or 4.1. | |
| - Get bsddb module to build with BerkeleyDB version 4.4 | |
| - Get bsddb module to build with BerkeleyDB version 3.2 | |
| - Patch #1309009, Fix segfault in pyexpat when the XML document is in latin_1, | |
| but Python incorrectly assumes it is in UTF-8 format | |
| - Fix parse errors in the readline module when compiling without threads. | |
| - Patch #1288833: Removed thread lock from socket.getaddrinfo on | |
| FreeBSD 5.3 and later versions which got thread-safe getaddrinfo(3). | |
| - Patches #1298449 and #1298499: Add some missing checks for error | |
| returns in cStringIO.c. | |
| - Patch #1297028: fix segfault if call type on MultibyteCodec, | |
| MultibyteStreamReader, or MultibyteStreamWriter | |
| - Fix memory leak in posix.access(). | |
| - Patch #1213831: Fix typo in unicodedata._getcode. | |
| - Bug #1007046: os.startfile() did not accept unicode strings encoded in | |
| the file system encoding. | |
| - Patch #756021: Special-case socket.inet_aton('255.255.255.255') for | |
| platforms that don't have inet_aton(). | |
| - Bug #1215928: Fix bz2.BZ2File.seek() for 64-bit file offsets. | |
| - Bug #1191043: Fix bz2.BZ2File.(x)readlines for files containing one | |
| line without newlines. | |
| - Bug #728515: mmap.resize() now resizes the file on Unix as it did | |
| on Windows. | |
| - Patch #1180695: Add nanosecond stat resolution, and st_gen, | |
| st_birthtime for FreeBSD. | |
| - Patch #1231069: The fcntl.ioctl function now uses the 'I' code for | |
| the request code argument, which results in more C-like behaviour | |
| for large or negative values. | |
| - Bug #1234979: For the argument of thread.Lock.acquire, the Windows | |
| implementation treated all integer values except 1 as false. | |
| - Bug #1194181: bz2.BZ2File didn't handle mode 'U' correctly. | |
| - Patch #1212117: os.stat().st_flags is now accessible as an attribute | |
| if available on the platform. | |
| - Patch #1103951: Expose O_SHLOCK and O_EXLOCK in the posix module if | |
| available on the platform. | |
| - Bug #1166660: The readline module could segfault if hook functions | |
| were set in a different thread than that which called readline. | |
| - collections.deque objects now support a remove() method. | |
| - operator.itemgetter() and operator.attrgetter() now support retrieving | |
| multiple fields. This provides direct support for sorting on multiple | |
| keys (primary, secondary, etc). | |
| - os.access now supports Unicode path names on non-Win32 systems. | |
| - Patches #925152, #1118602: Avoid reading after the end of the buffer | |
| in pyexpat.GetInputContext. | |
| - Patches #749830, #1144555: allow UNIX mmap size to default to current | |
| file size. | |
| - Added functional.partial(). See PEP309. | |
| - Patch #1093585: raise a ValueError for negative history items in readline. | |
| {remove_history,replace_history} | |
| - The spwd module has been added, allowing access to the shadow password | |
| database. | |
| - stat_float_times is now True. | |
| - array.array objects are now picklable. | |
| - the cPickle module no longer accepts the deprecated None option in the | |
| args tuple returned by __reduce__(). | |
| - itertools.islice() now accepts None for the start and step arguments. | |
| This allows islice() to work more readily with slices: | |
| islice(s.start, s.stop, s.step) | |
| - datetime.datetime() now has a strptime class method which can be used to | |
| create datetime object using a string and format. | |
| - Patch #1117961: Replace the MD5 implementation from RSA Data Security Inc | |
| with the implementation from http://sourceforge.net/projects/libmd5-rfc/. | |
| Library | |
| ------- | |
| - Patch #1388073: Numerous __-prefixed attributes of unittest.TestCase have | |
| been renamed to have only a single underscore prefix. This was done to | |
| make subclassing easier. | |
| - PEP 338: new module runpy defines a run_module function to support | |
| executing modules which provide access to source code or a code object | |
| via the PEP 302 import mechanisms. | |
| - The email module's parsedate_tz function now sets the daylight savings | |
| flag to -1 (unknown) since it can't tell from the date whether it should | |
| be set. | |
| - Patch #624325: urlparse.urlparse() and urlparse.urlsplit() results | |
| now sport attributes that provide access to the parts of the result. | |
| - Patch #1462498: sgmllib now handles entity and character references | |
| in attribute values. | |
| - Added the sqlite3 package. This is based on pysqlite2.1.3, and provides | |
| a DB-API interface in the standard library. You'll need sqlite 3.0.8 or | |
| later to build this - if you have an earlier version, the C extension | |
| module will not be built. | |
| - Bug #1460340: ``random.sample(dict)`` failed in various ways. Dicts | |
| aren't officially supported here, and trying to use them will probably | |
| raise an exception some day. But dicts have been allowed, and "mostly | |
| worked", so support for them won't go away without warning. | |
| - Bug #1445068: getpass.getpass() can now be given an explicit stream | |
| argument to specify where to write the prompt. | |
| - Patch #1462313, bug #1443328: the pickle modules now can handle classes | |
| that have __private names in their __slots__. | |
| - Bug #1250170: mimetools now handles socket.gethostname() failures gracefully. | |
| - patch #1457316: "setup.py upload" now supports --identity to select the | |
| key to be used for signing the uploaded code. | |
| - Queue.Queue objects now support .task_done() and .join() methods | |
| to make it easier to monitor when daemon threads have completed | |
| processing all enqueued tasks. Patch #1455676. | |
| - popen2.Popen objects now preserve the command in a .cmd attribute. | |
| - Added the ctypes ffi package. | |
| - email 4.0 package now integrated. This is largely the same as the email 3.0 | |
| package that was included in Python 2.3, except that PEP 8 module names are | |
| now used (e.g. mail.message instead of email.Message). The MIME classes | |
| have been moved to a subpackage (e.g. email.mime.text instead of | |
| email.MIMEText). The old names are still supported for now. Several | |
| deprecated Message methods have been removed and lots of bugs have been | |
| fixed. More details can be found in the email package documentation. | |
| - Patches #1436130/#1443155: codecs.lookup() now returns a CodecInfo object | |
| (a subclass of tuple) that provides incremental decoders and encoders | |
| (a way to use stateful codecs without the stream API). Python functions | |
| codecs.getincrementaldecoder() and codecs.getincrementalencoder() as well | |
| as C functions PyCodec_IncrementalEncoder() and PyCodec_IncrementalDecoder() | |
| have been added. | |
| - Patch #1359365: Calling next() on a closed StringIO.String object raises | |
| a ValueError instead of a StopIteration now (like file and cString.String do). | |
| cStringIO.StringIO.isatty() will raise a ValueError now if close() has been | |
| called before (like file and StringIO.StringIO do). | |
| - A regrtest option -w was added to re-run failed tests in verbose mode. | |
| - Patch #1446372: quit and exit can now be called from the interactive | |
| interpreter to exit. | |
| - The function get_count() has been added to the gc module, and gc.collect() | |
| grew an optional 'generation' argument. | |
| - A library msilib to generate Windows Installer files, and a distutils | |
| command bdist_msi have been added. | |
| - PEP 343: new module contextlib.py defines decorator @contextmanager | |
| and helpful context managers nested() and closing(). | |
| - The compiler package now supports future imports after the module docstring. | |
| - Bug #1413790: zipfile now sanitizes absolute archive names that are | |
| not allowed by the specs. | |
| - Patch #1215184: FileInput now can be given an opening hook which can | |
| be used to control how files are opened. | |
| - Patch #1212287: fileinput.input() now has a mode parameter for | |
| specifying the file mode input files should be opened with. | |
| - Patch #1215184: fileinput now has a fileno() function for getting the | |
| current file number. | |
| - Patch #1349274: gettext.install() now optionally installs additional | |
| translation functions other than _() in the builtins namespace. | |
| - Patch #1337756: fileinput now accepts Unicode filenames. | |
| - Patch #1373643: The chunk module can now read chunks larger than | |
| two gigabytes. | |
| - Patch #1417555: SimpleHTTPServer now returns Last-Modified headers. | |
| - Bug #1430298: It is now possible to send a mail with an empty | |
| return address using smtplib. | |
| - Bug #1432260: The names of lambda functions are now properly displayed | |
| in pydoc. | |
| - Patch #1412872: zipfile now sets the creator system to 3 (Unix) | |
| unless the system is Win32. | |
| - Patch #1349118: urllib now supports user:pass@ style proxy | |
| specifications, raises IOErrors when proxies for unsupported protocols | |
| are defined, and uses the https proxy on https redirections. | |
| - Bug #902075: urllib2 now supports 'host:port' style proxy specifications. | |
| - Bug #1407902: Add support for sftp:// URIs to urlparse. | |
| - Bug #1371247: Update Windows locale identifiers in locale.py. | |
| - Bug #1394565: SimpleHTTPServer now doesn't choke on query parameters | |
| any more. | |
| - Bug #1403410: The warnings module now doesn't get confused | |
| when it can't find out the module name it generates a warning for. | |
| - Patch #1177307: Added a new codec utf_8_sig for UTF-8 with a BOM signature. | |
| - Patch #1157027: cookielib mishandles RFC 2109 cookies in Netscape mode | |
| - Patch #1117398: cookielib.LWPCookieJar and .MozillaCookieJar now raise | |
| LoadError as documented, instead of IOError. For compatibility, | |
| LoadError subclasses IOError. | |
| - Added the hashlib module. It provides secure hash functions for MD5 and | |
| SHA1, 224, 256, 384, and 512. Note that recent developments make the | |
| historic MD5 and SHA1 unsuitable for cryptographic-strength applications. | |
| In <http://mail.python.org/pipermail/python-dev/2005-December/058850.html> | |
| Ronald L. Rivest offered this advice for Python: | |
| "The consensus of researchers in this area (at least as | |
| expressed at the NIST Hash Function Workshop 10/31/05), | |
| is that SHA-256 is a good choice for the time being, but | |
| that research should continue, and other alternatives may | |
| arise from this research. The larger SHA's also seem OK." | |
| - Added a subset of Fredrik Lundh's ElementTree package. Available | |
| modules are xml.etree.ElementTree, xml.etree.ElementPath, and | |
| xml.etree.ElementInclude, from ElementTree 1.2.6. | |
| - Patch #1162825: Support non-ASCII characters in IDLE window titles. | |
| - Bug #1365984: urllib now opens "data:" URLs again. | |
| - Patch #1314396: prevent deadlock for threading.Thread.join() when an exception | |
| is raised within the method itself on a previous call (e.g., passing in an | |
| illegal argument) | |
| - Bug #1340337: change time.strptime() to always return ValueError when there | |
| is an error in the format string. | |
| - Patch #754022: Greatly enhanced webbrowser.py (by Oleg Broytmann). | |
| - Bug #729103: pydoc.py: Fix docother() method to accept additional | |
| "parent" argument. | |
| - Patch #1300515: xdrlib.py: Fix pack_fstring() to really use null bytes | |
| for padding. | |
| - Bug #1296004: httplib.py: Limit maximal amount of data read from the | |
| socket to avoid a MemoryError on Windows. | |
| - Patch #1166948: locale.py: Prefer LC_ALL, LC_CTYPE and LANG over LANGUAGE | |
| to get the correct encoding. | |
| - Patch #1166938: locale.py: Parse LANGUAGE as a colon separated list of | |
| languages. | |
| - Patch #1268314: Cache lines in StreamReader.readlines for performance. | |
| - Bug #1290505: Fix clearing the regex cache for time.strptime(). | |
| - Bug #1167128: Fix size of a symlink in a tarfile to be 0. | |
| - Patch #810023: Fix off-by-one bug in urllib.urlretrieve reporthook | |
| functionality. | |
| - Bug #1163178: Make IDNA return an empty string when the input is empty. | |
| - Patch #848017: Make Cookie more RFC-compliant. Use CRLF as default output | |
| separator and do not output trailing semicolon. | |
| - Patch #1062060: urllib.urlretrieve() now raises a new exception, named | |
| ContentTooShortException, when the actually downloaded size does not | |
| match the Content-Length header. | |
| - Bug #1121494: distutils.dir_utils.mkpath now accepts Unicode strings. | |
| - Bug #1178484: Return complete lines from codec stream readers | |
| even if there is an exception in later lines, resulting in | |
| correct line numbers for decoding errors in source code. | |
| - Bug #1192315: Disallow negative arguments to clear() in pdb. | |
| - Patch #827386: Support absolute source paths in msvccompiler.py. | |
| - Patch #1105730: Apply the new implementation of commonprefix in posixpath | |
| to ntpath, macpath, os2emxpath and riscospath. | |
| - Fix a problem in Tkinter introduced by SF patch #869468: delete bogus | |
| __hasattr__ and __delattr__ methods on class Tk that were breaking | |
| Tkdnd. | |
| - Bug #1015140: disambiguated the term "article id" in nntplib docs and | |
| docstrings to either "article number" or "message id". | |
| - Bug #1238170: threading.Thread.__init__ no longer has "kwargs={}" as a | |
| parameter, but uses the usual "kwargs=None". | |
| - textwrap now processes text chunks at O(n) speed instead of O(n**2). | |
| Patch #1209527 (Contributed by Connelly). | |
| - urllib2 has now an attribute 'httpresponses' mapping from HTTP status code | |
| to W3C name (404 -> 'Not Found'). RFE #1216944. | |
| - Bug #1177468: Don't cache the /dev/urandom file descriptor for os.urandom, | |
| as this can cause problems with apps closing all file descriptors. | |
| - Bug #839151: Fix an attempt to access sys.argv in the warnings module; | |
| it can be missing in embedded interpreters | |
| - Bug #1155638: Fix a bug which affected HTTP 0.9 responses in httplib. | |
| - Bug #1100201: Cross-site scripting was possible on BaseHTTPServer via | |
| error messages. | |
| - Bug #1108948: Cookie.py produced invalid JavaScript code. | |
| - The tokenize module now detects and reports indentation errors. | |
| Bug #1224621. | |
| - The tokenize module has a new untokenize() function to support a full | |
| roundtrip from lexed tokens back to Python source code. In addition, | |
| the generate_tokens() function now accepts a callable argument that | |
| terminates by raising StopIteration. | |
| - Bug #1196315: fix weakref.WeakValueDictionary constructor. | |
| - Bug #1213894: os.path.realpath didn't resolve symlinks that were the first | |
| component of the path. | |
| - Patch #1120353: The xmlrpclib module provides better, more transparent, | |
| support for datetime.{datetime,date,time} objects. With use_datetime set | |
| to True, applications shouldn't have to fiddle with the DateTime wrapper | |
| class at all. | |
| - distutils.commands.upload was added to support uploading distribution | |
| files to PyPI. | |
| - distutils.commands.register now encodes the data as UTF-8 before posting | |
| them to PyPI. | |
| - decimal operator and comparison methods now return NotImplemented | |
| instead of raising a TypeError when interacting with other types. This | |
| allows other classes to implement __radd__ style methods and have them | |
| work as expected. | |
| - Bug #1163325: Decimal infinities failed to hash. Attempting to | |
| hash a NaN raised an InvalidOperation instead of a TypeError. | |
| - Patch #918101: Add tarfile open mode r|* for auto-detection of the | |
| stream compression; add, for symmetry reasons, r:* as a synonym of r. | |
| - Patch #1043890: Add extractall method to tarfile. | |
| - Patch #1075887: Don't require MSVC in distutils if there is nothing | |
| to build. | |
| - Patch #1103407: Properly deal with tarfile iterators when untarring | |
| symbolic links on Windows. | |
| - Patch #645894: Use getrusage for computing the time consumption in | |
| profile.py if available. | |
| - Patch #1046831: Use get_python_version where appropriate in sysconfig.py. | |
| - Patch #1117454: Remove code to special-case cookies without values | |
| in LWPCookieJar. | |
| - Patch #1117339: Add cookielib special name tests. | |
| - Patch #1112812: Make bsddb/__init__.py more friendly for modulefinder. | |
| - Patch #1110248: SYNC_FLUSH the zlib buffer for GZipFile.flush. | |
| - Patch #1107973: Allow iterating over the lines of a tarfile.ExFileObject. | |
| - Patch #1104111: Alter setup.py --help and --help-commands. | |
| - Patch #1121234: Properly cleanup _exit and tkerror commands. | |
| - Patch #1049151: xdrlib now unpacks booleans as True or False. | |
| - Fixed bug in a NameError bug in cookielib. Patch #1116583. | |
| - Applied a security fix to SimpleXMLRPCserver (PSF-2005-001). This | |
| disables recursive traversal through instance attributes, which can | |
| be exploited in various ways. | |
| - Bug #1222790: in SimpleXMLRPCServer, set the reuse-address and close-on-exec | |
| flags on the HTTP listening socket. | |
| - Bug #792570: SimpleXMLRPCServer had problems if the request grew too large. | |
| Fixed by reading the HTTP body in chunks instead of one big socket.read(). | |
| - Patches #893642, #1039083: add allow_none, encoding arguments to | |
| constructors of SimpleXMLRPCServer and CGIXMLRPCRequestHandler. | |
| - Bug #1110478: Revert os.environ.update to do putenv again. | |
| - Bug #1103844: fix distutils.install.dump_dirs() with negated options. | |
| - os.{SEEK_SET, SEEK_CUR, SEEK_END} have been added for convenience. | |
| - Enhancements to the csv module: | |
| + Dialects are now validated by the underlying C code, better | |
| reflecting its capabilities, and improving its compliance with | |
| PEP 305. | |
| + Dialect parameter parsing has been re-implemented to improve error | |
| reporting. | |
| + quotechar=None and quoting=QUOTE_NONE now work the way PEP 305 | |
| dictates. | |
| + the parser now removes the escapechar prefix from escaped characters. | |
| + when quoting=QUOTE_NONNUMERIC, the writer now tests for numeric | |
| types, rather than any object that can be represented as a numeric. | |
| + when quoting=QUOTE_NONNUMERIC, the reader now casts unquoted fields | |
| to floats. | |
| + reader now allows \r characters to be quoted (previously it only allowed | |
| \n to be quoted). | |
| + writer doublequote handling improved. | |
| + Dialect classes passed to the module are no longer instantiated by | |
| the module before being parsed (the former validation scheme required | |
| this, but the mechanism was unreliable). | |
| + The dialect registry now contains instances of the internal | |
| C-coded dialect type, rather than references to python objects. | |
| + the internal c-coded dialect type is now immutable. | |
| + register_dialect now accepts the same keyword dialect specifications | |
| as the reader and writer, allowing the user to register dialects | |
| without first creating a dialect class. | |
| + a configurable limit to the size of parsed fields has been added - | |
| previously, an unmatched quote character could result in the entire | |
| file being read into the field buffer before an error was reported. | |
| + A new module method csv.field_size_limit() has been added that sets | |
| the parser field size limit (returning the former limit). The initial | |
| limit is 128kB. | |
| + A line_num attribute has been added to the reader object, which tracks | |
| the number of lines read from the source iterator. This is not | |
| the same as the number of records returned, as records can span | |
| multiple lines. | |
| + reader and writer objects were not being registered with the cyclic-GC. | |
| This has been fixed. | |
| - _DummyThread objects in the threading module now delete self.__block that is | |
| inherited from _Thread since it uses up a lock allocated by 'thread'. The | |
| lock primitives tend to be limited in number and thus should not be wasted on | |
| a _DummyThread object. Fixes bug #1089632. | |
| - The imghdr module now detects Exif files. | |
| - StringIO.truncate() now correctly adjusts the size attribute. | |
| (Bug #951915). | |
| - locale.py now uses an updated locale alias table (built using | |
| Tools/i18n/makelocalealias.py, a tool to parse the X11 locale | |
| alias file); the encoding lookup was enhanced to use Python's | |
| encoding alias table. | |
| - moved deprecated modules to Lib/lib-old: whrandom, tzparse, statcache. | |
| - the pickle module no longer accepts the deprecated None option in the | |
| args tuple returned by __reduce__(). | |
| - optparse now optionally imports gettext. This allows its use in setup.py. | |
| - the pickle module no longer uses the deprecated bin parameter. | |
| - the shelve module no longer uses the deprecated binary parameter. | |
| - the pstats module no longer uses the deprecated ignore() method. | |
| - the filecmp module no longer uses the deprecated use_statcache argument. | |
| - unittest.TestCase.run() and unittest.TestSuite.run() can now be successfully | |
| extended or overridden by subclasses. Formerly, the subclassed method would | |
| be ignored by the rest of the module. (Bug #1078905). | |
| - heapq.nsmallest() and heapq.nlargest() now support key= arguments with | |
| the same meaning as in list.sort(). | |
| - Bug #1076985: ``codecs.StreamReader.readline()`` now calls ``read()`` only | |
| once when a size argument is given. This prevents a buffer overflow in the | |
| tokenizer with very long source lines. | |
| - Bug #1083110: ``zlib.decompress.flush()`` would segfault if called | |
| immediately after creating the object, without any intervening | |
| ``.decompress()`` calls. | |
| - The reconvert.quote function can now emit triple-quoted strings. The | |
| reconvert module now has some simple documentation. | |
| - ``UserString.MutableString`` now supports negative indices in | |
| ``__setitem__`` and ``__delitem__`` | |
| - Bug #1149508: ``textwrap`` now handles hyphenated numbers (eg. "2004-03-05") | |
| correctly. | |
| - Partial fixes for SF bugs #1163244 and #1175396: If a chunk read by | |
| ``codecs.StreamReader.readline()`` has a trailing "\r", read one more | |
| character even if the user has passed a size parameter to get a proper | |
| line ending. Remove the special handling of a "\r\n" that has been split | |
| between two lines. | |
| - Bug #1251300: On UCS-4 builds the "unicode-internal" codec will now complain | |
| about illegal code points. The codec now supports PEP 293 style error | |
| handlers. | |
| - Bug #1235646: ``codecs.StreamRecoder.next()`` now reencodes the data it reads | |
| from the input stream, so that the output is a byte string in the correct | |
| encoding instead of a unicode string. | |
| - Bug #1202493: Fixing SRE parser to handle '{}' as perl does, rather than | |
| considering it exactly like a '*'. | |
| - Bug #1245379: Add "unicode-1-1-utf-7" as an alias for "utf-7" to | |
| ``encodings.aliases``. | |
| - ` uu.encode()`` and ``uu.decode()`` now support unicode filenames. | |
| - Patch #1413711: Certain patterns of differences were making difflib | |
| touch the recursion limit. | |
| - Bug #947906: An object oriented interface has been added to the calendar | |
| module. It's possible to generate HTML calendar now and the module can be | |
| called as a script (e.g. via ``python -mcalendar``). Localized month and | |
| weekday names can be output (even if an exotic encoding is used) using | |
| special classes that use unicode. | |
| Build | |
| ----- | |
| - Fix test_float, test_long, and test_struct failures on Tru64 with gcc | |
| by using -mieee gcc option. | |
| - Patch #1432345: Make python compile on DragonFly. | |
| - Build support for Win64-AMD64 was added. | |
| - Patch #1428494: Prefer linking against ncursesw over ncurses library. | |
| - Patch #881820: look for openpty and forkpty also in libbsd. | |
| - The sources of zlib are now part of the Python distribution (zlib 1.2.3). | |
| The zlib module is now built in on Windows. | |
| - Use -xcode=pic32 for CCSHARED on Solaris with SunPro. | |
| - Bug #1189330: configure did not correctly determine the necessary | |
| value of LINKCC if python was built with GCC 4.0. | |
| - Upgrade Windows build to zlib 1.2.3 which eliminates a potential security | |
| vulnerability in zlib 1.2.1 and 1.2.2. | |
| - EXTRA_CFLAGS has been introduced as an environment variable to hold compiler | |
| flags that change binary compatibility. Changes were also made to | |
| distutils.sysconfig to also use the environment variable when used during | |
| compilation of the interpreter and of C extensions through distutils. | |
| - SF patch 1171735: Darwin 8's headers are anal about POSIX compliance, | |
| and linking has changed (prebinding is now deprecated, and libcc_dynamic | |
| no longer exists). This configure patch makes things right. | |
| - Bug #1158607: Build with --disable-unicode again. | |
| - spwdmodule.c is built only if either HAVE_GETSPNAM or HAVE_HAVE_GETSPENT is | |
| defined. Discovered as a result of not being able to build on OS X. | |
| - setup.py now uses the directories specified in LDFLAGS using the -L option | |
| and in CPPFLAGS using the -I option for adding library and include | |
| directories, respectively, for compiling extension modules against. This has | |
| led to the core being compiled using the values in CPPFLAGS. It also removes | |
| the need for the special-casing of both DarwinPorts and Fink for darwin since | |
| the proper directories can be specified in LDFLAGS (``-L/sw/lib`` for Fink, | |
| ``-L/opt/local/lib`` for DarwinPorts) and CPPFLAGS (``-I/sw/include`` for | |
| Fink, ``-I/opt/local/include`` for DarwinPorts). | |
| - Test in configure.in that checks for tzset no longer dependent on tm->tm_zone | |
| to exist in the struct (not required by either ISO C nor the UNIX 2 spec). | |
| Tests for sanity in tzname when HAVE_TZNAME defined were also defined. | |
| Closes bug #1096244. Thanks Gregory Bond. | |
| C API | |
| ----- | |
| - ``PyMem_{Del, DEL}`` and ``PyMem_{Free, FREE}`` no longer map to | |
| ``PyObject_{Free, FREE}``. They map to the system ``free()`` now. If memory | |
| is obtained via the ``PyObject_`` family, it must be released via the | |
| ``PyObject_`` family, and likewise for the ``PyMem_`` family. This has | |
| always been officially true, but when Python's small-object allocator was | |
| introduced, an attempt was made to cater to a few extension modules | |
| discovered at the time that obtained memory via ``PyObject_New`` but | |
| released it via ``PyMem_DEL``. It's years later, and if such code still | |
| exists it will fail now (probably with segfaults, but calling wrong | |
| low-level memory management functions can yield many symptoms). | |
| - Added a C API for set and frozenset objects. | |
| - Removed PyRange_New(). | |
| - Patch #1313939: PyUnicode_DecodeCharmap() accepts a unicode string as the | |
| mapping argument now. This string is used as a mapping table. Byte values | |
| greater than the length of the string and 0xFFFE are treated as undefined | |
| mappings. | |
| Tests | |
| ----- | |
| - In test_os, st_?time is now truncated before comparing it with ST_?TIME. | |
| - Patch #1276356: New resource "urlfetch" is implemented. This enables | |
| even impatient people to run tests that require remote files. | |
| Documentation | |
| ------------- | |
| - Bug #1402224: Add warning to dl docs about crashes. | |
| - Bug #1396471: Document that Windows' ftell() can return invalid | |
| values for text files with UNIX-style line endings. | |
| - Bug #1274828: Document os.path.splitunc(). | |
| - Bug #1190204: Clarify which directories are searched by site.py. | |
| - Bug #1193849: Clarify os.path.expanduser() documentation. | |
| - Bug #1243192: re.UNICODE and re.LOCALE affect \d, \D, \s and \S. | |
| - Bug #755617: Document the effects of os.chown() on Windows. | |
| - Patch #1180012: The documentation for modulefinder is now in the library reference. | |
| - Patch #1213031: Document that os.chown() accepts argument values of -1. | |
| - Bug #1190563: Document os.waitpid() return value with WNOHANG flag. | |
| - Bug #1175022: Correct the example code for property(). | |
| - Document the IterableUserDict class in the UserDict module. | |
| Closes bug #1166582. | |
| - Remove all latent references for "Macintosh" that referred to semantics for | |
| Mac OS 9 and change to reflect the state for OS X. | |
| Closes patch #1095802. Thanks Jack Jansen. | |
| Mac | |
| --- | |
| New platforms | |
| ------------- | |
| - FreeBSD 7 support is added. | |
| Tools/Demos | |
| ----------- | |
| - Created Misc/Vim/vim_syntax.py to auto-generate a python.vim file in that | |
| directory for syntax highlighting in Vim. Vim directory was added and placed | |
| vimrc to it (was previous up a level). | |
| - Added two new files to Tools/scripts: pysource.py, which recursively | |
| finds Python source files, and findnocoding.py, which finds Python | |
| source files that need an encoding declaration. | |
| Patch #784089, credits to Oleg Broytmann. | |
| - Bug #1072853: pindent.py used an uninitialized variable. | |
| - Patch #1177597: Correct Complex.__init__. | |
| - Fixed a display glitch in Pynche, which could cause the right arrow to | |
| wiggle over by a pixel. | |
| What's New in Python 2.4 final? | |
| =============================== | |
| *Release date: 30-NOV-2004* | |
| Core and builtins | |
| ----------------- | |
| - Bug 875692: Improve signal handling, especially when using threads, by | |
| forcing an early re-execution of PyEval_EvalFrame() "periodic" code when | |
| things_to_do is not cleared by Py_MakePendingCalls(). | |
| What's New in Python 2.4 (release candidate 1) | |
| ============================================== | |
| *Release date: 18-NOV-2004* | |
| Core and builtins | |
| ----------------- | |
| - Bug 1061968: Fixes in 2.4a3 to address thread bug 1010677 reintroduced | |
| the years-old thread shutdown race bug 225673. Numeric history lesson | |
| aside, all bugs in all three reports are fixed now. | |
| Library | |
| ------- | |
| - Bug 1052242: If exceptions are raised by an atexit handler function an | |
| attempt is made to execute the remaining handlers. The last exception | |
| raised is re-raised. | |
| - ``doctest``'s new support for adding ``pdb.set_trace()`` calls to | |
| doctests was broken in a dramatic but shallow way. Fixed. | |
| - Bug 1065388: ``calendar``'s ``day_name``, ``day_abbr``, ``month_name``, | |
| and ``month_abbr`` attributes emulate sequences of locale-correct | |
| spellings of month and day names. Because the locale can change at | |
| any time, the correct spelling is recomputed whenever one of these is | |
| indexed. In the worst case, the index may be a slice object, so these | |
| recomputed every day or month name each time they were indexed. This is | |
| much slower than necessary in the usual case, when the index is just an | |
| integer. In that case, only the single spelling needed is recomputed | |
| now; and, when the index is a slice object, only the spellings needed | |
| by the slice are recomputed now. | |
| - Patch 1061679: Added ``__all__`` to pickletools.py. | |
| Build | |
| ----- | |
| - Bug 1034277 / Patch 1035255: Remove compilation of core against CoreServices | |
| and CoreFoundation on OS X. Involved removing PyMac_GetAppletScriptFile() | |
| which has no known users. Thanks Bob Ippolito. | |
| C API | |
| ----- | |
| - The PyRange_New() function is deprecated. | |
| What's New in Python 2.4 beta 2? | |
| ================================ | |
| *Release date: 03-NOV-2004* | |
| License | |
| ------- | |
| The Python Software Foundation changed the license under which Python | |
| is released, to remove Python version numbers. There were no other | |
| changes to the license. So, for example, wherever the license for | |
| Python 2.3 said "Python 2.3", the new license says "Python". The | |
| intent is to make it possible to refer to the PSF license in a more | |
| durable way. For example, some people say they're confused by that | |
| the Open Source Initiative's entry for the Python Software Foundation | |
| License:: | |
| https://opensource.org/licenses/PythonSoftFoundation.php | |
| says "Python 2.1.1" all over it, wondering whether it applies only | |
| to Python 2.1.1. | |
| The official name of the new license is the Python Software Foundation | |
| License Version 2. | |
| Core and builtins | |
| ----------------- | |
| - Bug #1055820 Cyclic garbage collection was not protecting against that | |
| calling a live weakref to a piece of cyclic trash could resurrect an | |
| insane mutation of the trash if any Python code ran during gc (via | |
| running a dead object's __del__ method, running another callback on a | |
| weakref to a dead object, or via any Python code run in any other thread | |
| that managed to obtain the GIL while a __del__ or callback was running | |
| in the thread doing gc). The most likely symptom was "impossible" | |
| ``AttributeError`` exceptions, appearing seemingly at random, on weakly | |
| referenced objects. The cure was to clear all weakrefs to unreachable | |
| objects before allowing any callbacks to run. | |
| - Bug #1054139 _PyString_Resize() now invalidates its cached hash value. | |
| Extension Modules | |
| ----------------- | |
| - Bug #1048870: the compiler now generates distinct code objects for | |
| functions with identical bodies. This was producing confusing | |
| traceback messages which pointed to the function where the code | |
| object was first defined rather than the function being executed. | |
| Library | |
| ------- | |
| - Patch #1056967 changes the semantics of Template.safe_substitute() so that | |
| no ValueError is raised on an 'invalid' match group. Now the delimiter is | |
| returned. | |
| - Bug #1052503 pdb.runcall() was not passing along keyword arguments. | |
| - Bug #902037: XML.sax.saxutils.prepare_input_source() now combines relative | |
| paths with a base path before checking os.path.isfile(). | |
| - The whichdb module can now be run from the command line. | |
| - Bug #1045381: time.strptime() can now infer the date using %U or %W (week of | |
| the year) when the day of the week and year are also specified. | |
| - Bug #1048816: fix bug in Ctrl-K at start of line in curses.textpad.Textbox | |
| - Bug #1017553: fix bug in tarfile.filemode() | |
| - Patch #737473: fix bug that old source code is shown in tracebacks even if | |
| the source code is updated and reloaded. | |
| Build | |
| ----- | |
| - Patch #1044395: --enable-shared is allowed in FreeBSD also. | |
| What's New in Python 2.4 beta 1? | |
| ================================ | |
| *Release date: 15-OCT-2004* | |
| Core and builtins | |
| ----------------- | |
| - Patch #975056: Restartable signals were not correctly disabled on | |
| BSD systems. Consistently use PyOS_setsig() instead of signal(). | |
| - The internal portable implementation of thread-local storage (TLS), used | |
| by the ``PyGILState_Ensure()``/``PyGILState_Release()`` API, was not | |
| thread-correct. This could lead to a variety of problems, up to and | |
| including segfaults. See bug 1041645 for an example. | |
| - Added a command line option, -m module, which searches sys.path for the | |
| module and then runs it. (Contributed by Nick Coghlan.) | |
| - The bytecode optimizer now folds tuples of constants into a single | |
| constant. | |
| - SF bug #513866: Float/long comparison anomaly. Prior to 2.4b1, when | |
| an integer was compared to a float, the integer was coerced to a float. | |
| That could yield spurious overflow errors (if the integer was very | |
| large), and to anomalies such as | |
| ``long(1e200)+1 == 1e200 == long(1e200)-1``. Coercion to float is no | |
| longer performed, and cases like ``long(1e200)-1 < 1e200``, | |
| ``long(1e200)+1 > 1e200`` and ``(1 << 20000) > 1e200`` are computed | |
| correctly now. | |
| Extension modules | |
| ----------------- | |
| - ``collections.deque`` objects didn't play quite right with garbage | |
| collection, which could lead to a segfault in a release build, or | |
| an assert failure in a debug build. Also, added overflow checks, | |
| better detection of mutation during iteration, and shielded deque | |
| comparisons from unusual subclass overrides of the __iter__() method. | |
| Library | |
| ------- | |
| - Patch 1046644: distutils build_ext grew two new options - --swig for | |
| specifying the swig executable to use, and --swig-opts to specify | |
| options to pass to swig. --swig-opts="-c++" is the new way to spell | |
| --swig-cpp. | |
| - Patch 983206: distutils now obeys environment variable LDSHARED, if | |
| it is set. | |
| - Added Peter Astrand's subprocess.py module. See PEP 324 for details. | |
| - time.strptime() now properly escapes timezones and all other locale-specific | |
| strings for regex-specific symbols. Was breaking under Japanese Windows when | |
| the timezone was specified as "Tokyo (standard time)". | |
| Closes bug #1039270. | |
| - Updates for the email package: | |
| + email.Utils.formatdate() grew a 'usegmt' argument for HTTP support. | |
| + All deprecated APIs that in email 2.x issued warnings have been removed: | |
| _encoder argument to the MIMEText constructor, Message.add_payload(), | |
| Utils.dump_address_pair(), Utils.decode(), Utils.encode() | |
| + New deprecations: Generator.__call__(), Message.get_type(), | |
| Message.get_main_type(), Message.get_subtype(), the 'strict' argument to | |
| the Parser constructor. These will be removed in email 3.1. | |
| + Support for Python earlier than 2.3 has been removed (see PEP 291). | |
| + All defect classes have been renamed to end in 'Defect'. | |
| + Some FeedParser fixes; also a MultipartInvariantViolationDefect will be | |
| added to messages that claim to be multipart but really aren't. | |
| + Updates to documentation. | |
| - re's findall() and finditer() functions now take an optional flags argument | |
| just like the compile(), search(), and match() functions. Also, documented | |
| the previously existing start and stop parameters for the findall() and | |
| finditer() methods of regular expression objects. | |
| - rfc822 Messages now support iterating over the headers. | |
| - The (undocumented) tarfile.Tarfile.membernames has been removed; | |
| applications should use the getmember function. | |
| - httplib now offers symbolic constants for the HTTP status codes. | |
| - SF bug #1028306: Trying to compare a ``datetime.date`` to a | |
| ``datetime.datetime`` mistakenly compared only the year, month and day. | |
| Now it acts like a mixed-type comparison: ``False`` for ``==``, | |
| ``True`` for ``!=``, and raises ``TypeError`` for other comparison | |
| operators. Because datetime is a subclass of date, comparing only the | |
| base class (date) members can still be done, if that's desired, by | |
| forcing using of the appropriate date method; e.g., | |
| ``a_date.__eq__(a_datetime)`` is true if and only if the year, month | |
| and day members of ``a_date`` and ``a_datetime`` are equal. | |
| - bdist_rpm now supports command line options --force-arch, | |
| {pre,post}-install, {pre,post}-uninstall, and | |
| {prep,build,install,clean,verify}-script. | |
| - SF patch #998993: The UTF-8 and the UTF-16 stateful decoders now support | |
| decoding incomplete input (when the input stream is temporarily exhausted). | |
| ``codecs.StreamReader`` now implements buffering, which enables proper | |
| readline support for the UTF-16 decoders. ``codecs.StreamReader.read()`` | |
| has a new argument ``chars`` which specifies the number of characters to | |
| return. ``codecs.StreamReader.readline()`` and | |
| ``codecs.StreamReader.readlines()`` have a new argument ``keepends``. | |
| Trailing "\n"s will be stripped from the lines if ``keepends`` is false. | |
| - The documentation for doctest is greatly expanded, and now covers all | |
| the new public features (of which there are many). | |
| - ``doctest.master`` was put back in, and ``doctest.testmod()`` once again | |
| updates it. This isn't good, because every ``testmod()`` call | |
| contributes to bloating the "hidden" state of ``doctest.master``, but | |
| some old code apparently relies on it. For now, all we can do is | |
| encourage people to stitch doctests together via doctest's unittest | |
| integration features instead. | |
| - httplib now handles ipv6 address/port pairs. | |
| - SF bug #1017864: ConfigParser now correctly handles default keys, | |
| processing them with ``ConfigParser.optionxform`` when supplied, | |
| consistent with the handling of config file entries and runtime-set | |
| options. | |
| - SF bug #997050: Document, test, & check for non-string values in | |
| ConfigParser. Moved the new string-only restriction added in | |
| rev. 1.65 to the SafeConfigParser class, leaving existing | |
| ConfigParser & RawConfigParser behavior alone, and documented the | |
| conditions under which non-string values work. | |
| Build | |
| ----- | |
| - Building on darwin now includes /opt/local/include and /opt/local/lib for | |
| building extension modules. This is so as to include software installed as | |
| a DarwinPorts port <http://darwinports.opendarwin.org/> | |
| - pyport.h now defines a Py_IS_NAN macro. It works as-is when the | |
| platform C computes true for ``x != x`` if and only if X is a NaN. | |
| Other platforms can override the default definition with a platform- | |
| specific spelling in that platform's pyconfig.h. You can also override | |
| pyport.h's default Py_IS_INFINITY definition now. | |
| C API | |
| ----- | |
| - SF patch 1044089: New function ``PyEval_ThreadsInitialized()`` returns | |
| non-zero if PyEval_InitThreads() has been called. | |
| - The undocumented and unused extern int ``_PyThread_Started`` was removed. | |
| - The C API calls ``PyInterpreterState_New()`` and ``PyThreadState_New()`` | |
| are two of the very few advertised as being safe to call without holding | |
| the GIL. However, this wasn't true in a debug build, as bug 1041645 | |
| demonstrated. In a debug build, Python redirects the ``PyMem`` family | |
| of calls to Python's small-object allocator, to get the benefit of | |
| its extra debugging capabilities. But Python's small-object allocator | |
| isn't threadsafe, relying on the GIL to avoid the expense of doing its | |
| own locking. ``PyInterpreterState_New()`` and ``PyThreadState_New()`` | |
| call the platform ``malloc()`` directly now, regardless of build type. | |
| - PyLong_AsUnsignedLong[Mask] now support int objects as well. | |
| - SF patch #998993: ``PyUnicode_DecodeUTF8Stateful`` and | |
| ``PyUnicode_DecodeUTF16Stateful`` have been added, which implement stateful | |
| decoding. | |
| Tests | |
| ----- | |
| - test__locale ported to unittest | |
| Mac | |
| --- | |
| - ``plistlib`` now supports non-dict root objects. There is also a new | |
| interface for reading and writing plist files: ``readPlist(pathOrFile)`` | |
| and ``writePlist(rootObject, pathOrFile)`` | |
| Tools/Demos | |
| ----------- | |
| - The text file comparison scripts ``ndiff.py`` and ``diff.py`` now | |
| read the input files in universal-newline mode. This spares them | |
| from consuming a great deal of time to deduce the useless result that, | |
| e.g., a file with Windows line ends and a file with Linux line ends | |
| have no lines in common. | |
| What's New in Python 2.4 alpha 3? | |
| ================================= | |
| *Release date: 02-SEP-2004* | |
| Core and builtins | |
| ----------------- | |
| - SF patch #1007189: ``from ... import ...`` statements now allow the name | |
| list to be surrounded by parentheses. | |
| - Some speedups for long arithmetic, thanks to Trevor Perrin. Gradeschool | |
| multiplication was sped a little by optimizing the C code. Gradeschool | |
| squaring was sped by about a factor of 2, by exploiting that about half | |
| the digit products are duplicates in a square. Because exponentiation | |
| uses squaring often, this also speeds long power. For example, the time | |
| to compute 17**1000000 dropped from about 14 seconds to 9 on my box due | |
| to this much. The cutoff for Karatsuba multiplication was raised, | |
| since gradeschool multiplication got quicker, and the cutoff was | |
| aggressively small regardless. The exponentiation algorithm was switched | |
| from right-to-left to left-to-right, which is more efficient for small | |
| bases. In addition, if the exponent is large, the algorithm now does | |
| 5 bits (instead of 1 bit) at a time. That cut the time to compute | |
| 17**1000000 on my box in half again, down to about 4.5 seconds. | |
| - OverflowWarning is no longer generated. PEP 237 scheduled this to | |
| occur in Python 2.3, but since OverflowWarning was disabled by default, | |
| nobody realized it was still being generated. On the chance that user | |
| code is still using them, the Python builtin OverflowWarning, and | |
| corresponding C API PyExc_OverflowWarning, will exist until Python 2.5. | |
| - Py_InitializeEx has been added. | |
| - Fix the order of application of decorators. The proper order is bottom-up; | |
| the first decorator listed is the last one called. | |
| - SF patch #1005778. Fix a seg fault if the list size changed while | |
| calling list.index(). This could happen if a rich comparison function | |
| modified the list. | |
| - The ``func_name`` (a.k.a. ``__name__``) attribute of user-defined | |
| functions is now writable. | |
| - code_new (a.k.a new.code()) now checks its arguments sufficiently | |
| carefully that passing them on to PyCode_New() won't trigger calls | |
| to Py_FatalError() or PyErr_BadInternalCall(). It is still the case | |
| that the returned code object might be entirely insane. | |
| - Subclasses of string can no longer be interned. The semantics of | |
| interning were not clear here -- a subclass could be mutable, for | |
| example -- and had bugs. Explicitly interning a subclass of string | |
| via intern() will raise a TypeError. Internal operations that attempt | |
| to intern a string subclass will have no effect. | |
| - Bug 1003935: xrange() could report bogus OverflowErrors. Documented | |
| what xrange() intends, and repaired tests accordingly. | |
| Extension modules | |
| ----------------- | |
| - difflib now supports HTML side-by-side diff. | |
| - os.urandom has been added for systems that support sources of random | |
| data. | |
| - Patch 1012740: truncate() on a writable cStringIO now resets the | |
| position to the end of the stream. This is consistent with the original | |
| StringIO module and avoids inadvertently resurrecting data that was | |
| supposed to have been truncated away. | |
| - Added socket.socketpair(). | |
| - Added CurrentByteIndex, CurrentColumnNumber, CurrentLineNumber | |
| members to xml.parsers.expat.XMLParser object. | |
| - The mpz, rotor, and xreadlines modules, all deprecated in earlier | |
| versions of Python, have now been removed. | |
| Library | |
| ------- | |
| - Patch #934356: if a module defines __all__, believe that rather than using | |
| heuristics for filtering out imported names. | |
| - Patch #941486: added os.path.lexists(), which returns True for broken | |
| symlinks, unlike os.path.exists(). | |
| - the random module now uses os.urandom() for seeding if it is available. | |
| Added a new generator based on os.urandom(). | |
| - difflib and diff.py can now generate HTML. | |
| - bdist_rpm now includes version and release in the BuildRoot, and | |
| replaces - by ``_`` in version and release. | |
| - distutils build/build_scripts now has an -e option to specify the | |
| path to the Python interpreter for installed scripts. | |
| - PEP 292 classes Template and SafeTemplate are added to the string module. | |
| - tarfile now generates GNU tar files by default. | |
| - HTTPResponse has now a getheaders method. | |
| - Patch #1006219: let inspect.getsource handle '@' decorators. Thanks Simon | |
| Percivall. | |
| - logging.handlers.SMTPHandler.date_time has been removed; | |
| the class now uses email.Utils.formatdate to generate the time stamp. | |
| - A new function tkFont.nametofont was added to return an existing | |
| font. The Font class constructor now has an additional exists argument | |
| which, if True, requests to return/configure an existing font, rather | |
| than creating a new one. | |
| - Updated the decimal package's min() and max() methods to match the | |
| latest revision of the General Decimal Arithmetic Specification. | |
| Quiet NaNs are ignored and equal values are sorted based on sign | |
| and exponent. | |
| - The decimal package's Context.copy() method now returns deep copies. | |
| - Deprecated sys.exitfunc in favor of the atexit module. The sys.exitfunc | |
| attribute will be kept around for backwards compatibility and atexit | |
| will just become the one preferred way to do it. | |
| - patch #675551: Add get_history_item and replace_history_item functions | |
| to the readline module. | |
| - bug #989672: pdb.doc and the help messages for the help_d and help_u methods | |
| of the pdb.Pdb class gives have been corrected. d(own) goes to a newer | |
| frame, u(p) to an older frame, not the other way around. | |
| - bug #990669: os.path.realpath() will resolve symlinks before normalizing the | |
| path, as normalizing the path may alter the meaning of the path if it | |
| contains symlinks. | |
| - bug #851123: shutil.copyfile will raise an exception when trying to copy a | |
| file onto a link to itself. Thanks Gregory Ball. | |
| - bug #570300: Fix inspect to resolve file locations using os.path.realpath() | |
| so as to properly list all functions in a module when the module itself is | |
| reached through a symlink. Thanks Johannes Gijsbers. | |
| - doctest refactoring continued. See the docs for details. As part of | |
| this effort, some old and little- (never?) used features are now | |
| deprecated: the Tester class, the module is_private() function, and the | |
| isprivate argument to testmod(). The Tester class supplied a feeble | |
| "by hand" way to combine multiple doctests, if you knew exactly what | |
| you were doing. The newer doctest features for unittest integration | |
| already did a better job of that, are stronger now than ever, and the | |
| new DocTestRunner class is a saner foundation if you want to do it by | |
| hand. The "private name" filtering gimmick was a mistake from the | |
| start, and testmod() changed long ago to ignore it by default. If | |
| you want to filter out tests, the new DocTestFinder class can be used | |
| to return a list of all doctests, and you can filter that list by | |
| any computable criteria before passing it to a DocTestRunner instance. | |
| - Bug #891637, patch #1005466: fix inspect.getargs() crash on def foo((bar)). | |
| Tools/Demos | |
| ----------- | |
| - IDLE's shortcut keys for windows are now case insensitive so that | |
| Control-V works the same as Control-v. | |
| - pygettext.py: Generate POT-Creation-Date header in ISO format. | |
| Build | |
| ----- | |
| - Backward incompatibility: longintrepr.h now triggers a compile-time | |
| error if SHIFT (the number of bits in a Python long "digit") isn't | |
| divisible by 5. This new requirement allows simple code for the new | |
| 5-bits-at-a-time long_pow() implementation. If necessary, the | |
| restriction could be removed (by complicating long_pow(), or by | |
| falling back to the 1-bit-at-a-time algorithm), but there are no | |
| plans to do so. | |
| - bug #991962: When building with --disable-toolbox-glue on Darwin no | |
| attempt to build Mac-specific modules occurs. | |
| - The --with-tsc flag to configure to enable VM profiling with the | |
| processor's timestamp counter now works on PPC platforms. | |
| - patch #1006629: Define _XOPEN_SOURCE to 500 on Solaris 8/9 to match | |
| GCC's definition and avoid redefinition warnings. | |
| - Detect pthreads support (provided by gnu pth pthread emulation) on | |
| GNU/k*BSD systems. | |
| - bug #1005737, #1007249: Fixed several build problems and warnings | |
| found on old/legacy C compilers of HP-UX, IRIX and Tru64. | |
| C API | |
| ----- | |
| .. | |
| Documentation | |
| ------------- | |
| - patch #1005936, bug #1009373: fix index entries which contain | |
| an underscore when viewed with Acrobat. | |
| - bug #990669: os.path.normpath may alter the meaning of a path if | |
| it contains symbolic links. This has been documented in a comment | |
| since 1992, but is now in the library reference as well. | |
| New platforms | |
| ------------- | |
| - FreeBSD 6 is now supported. | |
| Tests | |
| ----- | |
| .. | |
| Windows | |
| ------- | |
| - Boosted the stack reservation for python.exe and pythonw.exe from | |
| the default 1MB to 2MB. Stack frames under VC 7.1 for 2.4 are enough | |
| bigger than under VC 6.0 for 2.3.4 that deeply recursive programs | |
| within the default sys.getrecursionlimit() default value of 1000 were | |
| able to suffer undetected C stack overflows. The standard test program | |
| test_compiler was one such program. If a Python process on Windows | |
| "just vanishes" without a trace, and without an error message of any | |
| kind, but with an exit code of 128, undetected stack overflow may be | |
| the problem. | |
| Mac | |
| --- | |
| .. | |
| What's New in Python 2.4 alpha 2? | |
| ================================= | |
| *Release date: 05-AUG-2004* | |
| Core and builtins | |
| ----------------- | |
| - Patch #980695: Implements efficient string concatenation for statements | |
| of the form s=s+t and s+=t. This will vary across implementations. | |
| Accordingly, the str.join() method is strongly preferred for performance | |
| sensitive code. | |
| - PEP-0318, Function Decorators have been added to the language. These are | |
| implemented using the Java-style @decorator syntax, like so:: | |
| @staticmethod | |
| def foo(bar): | |
| (The PEP needs to be updated to reflect the current state) | |
| - When importing a module M raises an exception, Python no longer leaves M | |
| in sys.modules. Before 2.4a2 it did, and a subsequent import of M would | |
| succeed, picking up a module object from sys.modules reflecting as much | |
| of the initialization of M as completed before the exception was raised. | |
| Subsequent imports got no indication that M was in a partially- | |
| initialized state, and the importers could get into arbitrarily bad | |
| trouble as a result (the M they got was in an unintended state, | |
| arbitrarily far removed from M's author's intent). Now subsequent | |
| imports of M will continue raising exceptions (but if, for example, the | |
| source code for M is edited between import attempts, then perhaps later | |
| attempts will succeed, or raise a different exception). | |
| This can break existing code, but in such cases the code was probably | |
| working before by accident. In the Python source, the only case of | |
| breakage discovered was in a test accidentally relying on a damaged | |
| module remaining in sys.modules. Cases are also known where tests | |
| deliberately provoking import errors remove damaged modules from | |
| sys.modules themselves, and such tests will break now if they do an | |
| unconditional del sys.modules[M]. | |
| - u'%s' % obj will now try obj.__unicode__() first and fallback to | |
| obj.__str__() if no __unicode__ method can be found. | |
| - Patch #550732: Add PyArg_VaParseTupleAndKeywords(). Analogous to | |
| PyArg_VaParse(). Both are now documented. Thanks Greg Chapman. | |
| - Allow string and unicode return types from .encode()/.decode() | |
| methods on string and unicode objects. Added unicode.decode() | |
| which was missing for no apparent reason. | |
| - An attempt to fix the mess that is Python's behaviour with | |
| signal handlers and threads, complicated by readline's behaviour. | |
| It's quite possible that there are still bugs here. | |
| - Added C macros Py_CLEAR and Py_VISIT to ease the implementation of | |
| types that support garbage collection. | |
| - Compiler now treats None as a constant. | |
| - The type of values returned by __int__, __float__, __long__, | |
| __oct__, and __hex__ are now checked. Returning an invalid type | |
| will cause a TypeError to be raised. This matches the behavior of | |
| Jython. | |
| - Implemented bind_textdomain_codeset() in locale module. | |
| - Added a workaround for proper string operations in BSDs. str.split | |
| and str.is* methods can now work correctly with UTF-8 locales. | |
| - Bug #989185: unicode.iswide() and unicode.width() is dropped and | |
| the East Asian Width support is moved to unicodedata extension | |
| module. | |
| - Patch #941229: The source code encoding in interactive mode | |
| now refers sys.stdin.encoding not just ISO-8859-1 anymore. This | |
| allows for non-latin-1 users to write unicode strings directly. | |
| Extension modules | |
| ----------------- | |
| - cpickle now supports the same keyword arguments as pickle. | |
| Library | |
| ------- | |
| - Added new codecs and aliases for ISO_8859-11, ISO_8859-16 and | |
| TIS-620 | |
| - Thanks to Edward Loper, doctest has been massively refactored, and | |
| many new features were added. Full docs will appear later. For now | |
| the doctest module comments and new test cases give good coverage. | |
| The refactoring provides many hook points for customizing behavior | |
| (such as how to report errors, and how to compare expected to actual | |
| output). New features include a <BLANKLINE> marker for expected | |
| output containing blank lines, options to produce unified or context | |
| diffs when actual output doesn't match expectations, an option to | |
| normalize whitespace before comparing, and an option to use an | |
| ellipsis to signify "don't care" regions of output. | |
| - Tkinter now supports the wish -sync and -use options. | |
| - The following methods in time support passing of None: ctime(), gmtime(), | |
| and localtime(). If None is provided, the current time is used (the | |
| same as when the argument is omitted). | |
| [SF bug 658254, patch 663482] | |
| - nntplib does now allow ignoring a .netrc file. | |
| - urllib2 now recognizes Basic authentication even if other authentication | |
| schemes are offered. | |
| - Bug #1001053. wave.open() now accepts unicode filenames. | |
| - gzip.GzipFile has a new fileno() method, to retrieve the handle of the | |
| underlying file object (provided it has a fileno() method). This is | |
| needed if you want to use os.fsync() on a GzipFile. | |
| - imaplib has two new methods: deleteacl and myrights. | |
| - nntplib has two new methods: description and descriptions. They | |
| use a more RFC-compliant way of getting a newsgroup description. | |
| - Bug #993394. Fix a possible red herring of KeyError in 'threading' being | |
| raised during interpreter shutdown from a registered function with atexit | |
| when dummy_threading is being used. | |
| - Bug #857297/Patch #916874. Fix an error when extracting a hard link | |
| from a tarfile. | |
| - Patch #846659. Fix an error in tarfile.py when using | |
| GNU longname/longlink creation. | |
| - The obsolete FCNTL.py has been deleted. The built-in fcntl module | |
| has been available (on platforms that support fcntl) since Python | |
| 1.5a3, and all FCNTL.py did is export fcntl's names, after generating | |
| a deprecation warning telling you to use fcntl directly. | |
| - Several new unicode codecs are added: big5hkscs, euc_jis_2004, | |
| iso2022_jp_2004, shift_jis_2004. | |
| - Bug #788520. Queue.{get, get_nowait, put, put_nowait} have new | |
| implementations, exploiting Conditions (which didn't exist at the time | |
| Queue was introduced). A minor semantic change is that the Full and | |
| Empty exceptions raised by non-blocking calls now occur only if the | |
| queue truly was full or empty at the instant the queue was checked (of | |
| course the Queue may no longer be full or empty by the time a calling | |
| thread sees those exceptions, though). Before, the exceptions could | |
| also be raised if it was "merely inconvenient" for the implementation | |
| to determine the true state of the Queue (because the Queue was locked | |
| by some other method in progress). | |
| - Bugs #979794 and #980117: difflib.get_grouped_opcodes() now handles the | |
| case of comparing two empty lists. This affected both context_diff() and | |
| unified_diff(), | |
| - Bug #980938: smtplib now prints debug output to sys.stderr. | |
| - Bug #930024: posixpath.realpath() now handles infinite loops in symlinks by | |
| returning the last point in the path that was not part of any loop. Thanks | |
| AM Kuchling. | |
| - Bug #980327: ntpath not handles compressing erroneous slashes between the | |
| drive letter and the rest of the path. Also clearly handles UNC addresses now | |
| as well. Thanks Paul Moore. | |
| - bug #679953: zipfile.py should now work for files over 2 GB. The packed data | |
| for file sizes (compressed and uncompressed) was being stored as signed | |
| instead of unsigned. | |
| - decimal.py now only uses signals in the IBM spec. The other conditions are | |
| no longer part of the public API. | |
| - codecs module now has two new generic APIs: encode() and decode() | |
| which don't restrict the return types (unlike the unicode and | |
| string methods of the same name). | |
| - Non-blocking SSL sockets work again; they were broken in Python 2.3. | |
| SF patch 945642. | |
| - doctest unittest integration improvements: | |
| o Improved the unitest test output for doctest-based unit tests | |
| o Can now pass setUp and tearDown functions when creating | |
| DocTestSuites. | |
| - The threading module has a new class, local, for creating objects | |
| that provide thread-local data. | |
| - Bug #990307: when keep_empty_values is True, cgi.parse_qsl() | |
| no longer returns spurious empty fields. | |
| - Implemented bind_textdomain_codeset() in gettext module. | |
| - Introduced in gettext module the l*gettext() family of functions, | |
| which return translation strings encoded in the preferred encoding, | |
| as informed by locale module's getpreferredencoding(). | |
| - optparse module (and tests) upgraded to Optik 1.5a1. Changes: | |
| - Add expansion of default values in help text: the string | |
| "%default" in an option's help string is expanded to str() of | |
| that option's default value, or "none" if no default value. | |
| - Bug #955889: option default values that happen to be strings are | |
| now processed in the same way as values from the command line; this | |
| allows generation of nicer help when using custom types. Can | |
| be disabled with parser.set_process_default_values(False). | |
| - Bug #960515: don't crash when generating help for callback | |
| options that specify 'type', but not 'dest' or 'metavar'. | |
| - Feature #815264: change the default help format for short options | |
| that take an argument from e.g. "-oARG" to "-o ARG"; add | |
| set_short_opt_delimiter() and set_long_opt_delimiter() methods to | |
| HelpFormatter to allow (slight) customization of the formatting. | |
| - Patch #736940: internationalize Optik: all built-in user- | |
| targeted literal strings are passed through gettext.gettext(). (If | |
| you want translations (.po files), they're not included with Python | |
| -- you'll find them in the Optik source distribution from | |
| http://optik.sourceforge.net/ .) | |
| - Bug #878453: respect $COLUMNS environment variable for | |
| wrapping help output. | |
| - Feature #988122: expand "%prog" in the 'description' passed | |
| to OptionParser, just like in the 'usage' and 'version' strings. | |
| (This is *not* done in the 'description' passed to OptionGroup.) | |
| C API | |
| ----- | |
| - PyImport_ExecCodeModule() and PyImport_ExecCodeModuleEx(): if an | |
| error occurs while loading the module, these now delete the module's | |
| entry from sys.modules. All ways of loading modules eventually call | |
| one of these, so this is an error-case change in semantics for all | |
| ways of loading modules. In rare cases, a module loader may wish | |
| to keep a module object in sys.modules despite that the module's | |
| code cannot be executed. In such cases, the module loader must | |
| arrange to reinsert the name and module object in sys.modules. | |
| PyImport_ReloadModule() has been changed to reinsert the original | |
| module object into sys.modules if the module reload fails, so that | |
| its visible semantics have not changed. | |
| - A large pile of datetime field-extraction macros is now documented, | |
| thanks to Anthony Tuininga (patch #986010). | |
| Documentation | |
| ------------- | |
| - Improved the tutorial on creating types in C. | |
| - point out the importance of reassigning data members before | |
| assigning their values | |
| - correct my misconception about return values from visitprocs. Sigh. | |
| - mention the labor saving Py_VISIT and Py_CLEAR macros. | |
| - Major rewrite of the math module docs, to address common confusions. | |
| Tests | |
| ----- | |
| - The test data files for the decimal test suite are now installed on | |
| platforms that use the Makefile. | |
| - SF patch 995225: The test file testtar.tar accidentally contained | |
| CVS keywords (like $Id$), which could cause spurious failures in | |
| test_tarfile.py depending on how the test file was checked out. | |
| What's New in Python 2.4 alpha 1? | |
| ================================= | |
| *Release date: 08-JUL-2004* | |
| Core and builtins | |
| ----------------- | |
| - weakref.ref is now the type object also known as | |
| weakref.ReferenceType; it can be subclassed like any other new-style | |
| class. There's less per-entry overhead in WeakValueDictionary | |
| objects now (one object instead of three). | |
| - Bug #951851: Python crashed when reading import table of certain | |
| Windows DLLs. | |
| - Bug #215126. The locals argument to eval(), execfile(), and exec now | |
| accept any mapping type. | |
| - marshal now shares interned strings. This change introduces | |
| a new .pyc magic. | |
| - Bug #966623. classes created with type() in an exec(, {}) don't | |
| have a __module__, but code in typeobject assumed it would always | |
| be there. | |
| - Python no longer relies on the LC_NUMERIC locale setting to be | |
| the "C" locale; as a result, it no longer tries to prevent changing | |
| the LC_NUMERIC category. | |
| - Bug #952807: Unpickling pickled instances of subclasses of | |
| datetime.date, datetime.datetime and datetime.time could yield insane | |
| objects. Thanks to Jiwon Seo for a fix. | |
| - Bug #845802: Python crashes when __init__.py is a directory. | |
| - Unicode objects received two new methods: iswide() and width(). | |
| These query East Asian width information, as specified in Unicode | |
| TR11. | |
| - Improved the tuple hashing algorithm to give fewer collisions in | |
| common cases. Fixes bug #942952. | |
| - Implemented generator expressions (PEP 289). Coded by Jiwon Seo. | |
| - Enabled the profiling of C extension functions (and builtins) - check | |
| new documentation and modified profile and bdb modules for more details | |
| - Set file.name to the object passed to open (instead of a new string) | |
| - Moved tracebackobject into traceback.h and renamed to PyTracebackObject | |
| - Optimized the byte coding for multiple assignments like "a,b=b,a" and | |
| "a,b,c=1,2,3". Improves their speed by 25% to 30%. | |
| - Limit the nested depth of a tuple for the second argument to isinstance() | |
| and issubclass() to the recursion limit of the interpreter. | |
| Fixes bug #858016 . | |
| - Optimized dict iterators, creating separate types for each | |
| and having them reveal their length. Also optimized the | |
| methods: keys(), values(), and items(). | |
| - Implemented a newcode opcode, LIST_APPEND, that simplifies | |
| the generated bytecode for list comprehensions and further | |
| improves their performance (about 35%). | |
| - Implemented rich comparisons for floats, which seems to make | |
| comparisons involving NaNs somewhat less surprising when the | |
| underlying C compiler actually implements C99 semantics. | |
| - Optimized list.extend() to save memory and no longer create | |
| intermediate sequences. Also, extend() now pre-allocates the | |
| needed memory whenever the length of the iterable is known in | |
| advance -- this halves the time to extend the list. | |
| - Optimized list resize operations to make fewer calls to the system | |
| realloc(). Significantly speeds up list appends, list pops, | |
| list comprehensions, and the list constructor (when the input iterable | |
| length is not known). | |
| - Changed the internal list over-allocation scheme. For larger lists, | |
| overallocation ranged between 3% and 25%. Now, it is a constant 12%. | |
| For smaller lists (n<8), overallocation was upto eight elements. Now, | |
| the overallocation is no more than three elements -- this improves space | |
| utilization for applications that have large numbers of small lists. | |
| - Most list bodies now get re-used rather than freed. Speeds up list | |
| instantiation and deletion by saving calls to malloc() and free(). | |
| - The dict.update() method now accepts all the same argument forms | |
| as the dict() constructor. This now includes item lists and/or | |
| keyword arguments. | |
| - Support for arbitrary objects supporting the read-only buffer | |
| interface as the co_code field of code objects (something that was | |
| only possible to create from C code) has been removed. | |
| - Made omitted callback and None equivalent for weakref.ref() and | |
| weakref.proxy(); the None case wasn't handled correctly in all | |
| cases. | |
| - Fixed problem where PyWeakref_NewRef() and PyWeakref_NewProxy() | |
| assumed that initial existing entries in an object's weakref list | |
| would not be removed while allocating a new weakref object. Since | |
| GC could be invoked at that time, however, that assumption was | |
| invalid. In a truly obscure case of GC being triggered during | |
| creation for a new weakref object for a referent which already | |
| has a weakref without a callback which is only referenced from | |
| cyclic trash, a memory error can occur. This consistently created a | |
| segfault in a debug build, but provided less predictable behavior in | |
| a release build. | |
| - input() built-in function now respects compiler flags such as | |
| __future__ statements. SF patch 876178. | |
| - Removed PendingDeprecationWarning from apply(). apply() remains | |
| deprecated, but the nuisance warning will not be issued. | |
| - At Python shutdown time (Py_Finalize()), 2.3 called cyclic garbage | |
| collection twice, both before and after tearing down modules. The | |
| call after tearing down modules has been disabled, because too much | |
| of Python has been torn down then for __del__ methods and weakref | |
| callbacks to execute sanely. The most common symptom was a sequence | |
| of uninformative messages on stderr when Python shut down, produced | |
| by threads trying to raise exceptions, but unable to report the nature | |
| of their problems because too much of the sys module had already been | |
| destroyed. | |
| - Removed FutureWarnings related to hex/oct literals and conversions | |
| and left shifts. (Thanks to Kalle Svensson for SF patch 849227.) | |
| This addresses most of the remaining semantic changes promised by | |
| PEP 237, except for repr() of a long, which still shows the trailing | |
| 'L'. The PEP appears to promise warnings for operations that | |
| changed semantics compared to Python 2.3, but this is not | |
| implemented; we've suffered through enough warnings related to | |
| hex/oct literals and I think it's best to be silent now. | |
| - For str and unicode objects, the ljust(), center(), and rjust() | |
| methods now accept an optional argument specifying a fill | |
| character other than a space. | |
| - When method objects have an attribute that can be satisfied either | |
| by the function object or by the method object, the function | |
| object's attribute usually wins. Christian Tismer pointed out that | |
| this is really a mistake, because this only happens for special | |
| methods (like __reduce__) where the method object's version is | |
| really more appropriate than the function's attribute. So from now | |
| on, all method attributes will have precedence over function | |
| attributes with the same name. | |
| - Critical bugfix, for SF bug 839548: if a weakref with a callback, | |
| its callback, and its weakly referenced object, all became part of | |
| cyclic garbage during a single run of garbage collection, the order | |
| in which they were torn down was unpredictable. It was possible for | |
| the callback to see partially-torn-down objects, leading to immediate | |
| segfaults, or, if the callback resurrected garbage objects, to | |
| resurrect insane objects that caused segfaults (or other surprises) | |
| later. In one sense this wasn't surprising, because Python's cyclic gc | |
| had no knowledge of Python's weakref objects. It does now. When | |
| weakrefs with callbacks become part of cyclic garbage now, those | |
| weakrefs are cleared first. The callbacks don't trigger then, | |
| preventing the problems. If you need callbacks to trigger, then just | |
| as when cyclic gc is not involved, you need to write your code so | |
| that weakref objects outlive the objects they weakly reference. | |
| - Critical bugfix, for SF bug 840829: if cyclic garbage collection | |
| happened to occur during a weakref callback for a new-style class | |
| instance, subtle memory corruption was the result (in a release build; | |
| in a debug build, a segfault occurred reliably very soon after). | |
| This has been repaired. | |
| - Compiler flags set in PYTHONSTARTUP are now active in __main__. | |
| - Added two built-in types, set() and frozenset(). | |
| - Added a reversed() built-in function that returns a reverse iterator | |
| over a sequence. | |
| - Added a sorted() built-in function that returns a new sorted list | |
| from any iterable. | |
| - CObjects are now mutable (on the C level) through PyCObject_SetVoidPtr. | |
| - list.sort() now supports three keyword arguments: cmp, key, and reverse. | |
| The key argument can be a function of one argument that extracts a | |
| comparison key from the original record: mylist.sort(key=str.lower). | |
| The reverse argument is a boolean value and if True will change the | |
| sort order as if the comparison arguments were reversed. In addition, | |
| the documentation has been amended to provide a guarantee that all sorts | |
| starting with Py2.3 are guaranteed to be stable (the relative order of | |
| records with equal keys is unchanged). | |
| - Added test whether wchar_t is signed or not. A signed wchar_t is not | |
| usable as internal unicode type base for Py_UNICODE since the | |
| unicode implementation assumes an unsigned type. | |
| - Fixed a bug in the cache of length-one Unicode strings that could | |
| lead to a seg fault. The specific problem occurred when an earlier, | |
| non-fatal error left an uninitialized Unicode object in the | |
| freelist. | |
| - The % formatting operator now supports '%F' which is equivalent to | |
| '%f'. This has always been documented but never implemented. | |
| - complex(obj) could leak a little memory if obj wasn't a string or | |
| number. | |
| - zip() with no arguments now returns an empty list instead of raising | |
| a TypeError exception. | |
| - obj.__contains__() now returns True/False instead of 1/0. SF patch | |
| 820195. | |
| - Python no longer tries to be smart about recursive comparisons. | |
| When comparing containers with cyclic references to themselves it | |
| will now just hit the recursion limit. See SF patch 825639. | |
| - str and unicode built-in types now have an rsplit() method that is | |
| same as split() except that it scans the string from the end | |
| working towards the beginning. See SF feature request 801847. | |
| - Fixed a bug in object.__reduce_ex__ when using protocol 2. Failure | |
| to clear the error when attempts to get the __getstate__ attribute | |
| fail caused intermittent errors and odd behavior. | |
| - buffer objects based on other objects no longer cache a pointer to | |
| the data and the data length. Instead, the appropriate tp_as_buffer | |
| method is called as necessary. | |
| - fixed: if a file is opened with an explicit buffer size >= 1, repeated | |
| close() calls would attempt to free() the buffer already free()ed on | |
| the first call. | |
| Extension modules | |
| ----------------- | |
| - Added socket.getservbyport(), and make the second argument in | |
| getservbyname() and getservbyport() optional. | |
| - time module code that deals with input POSIX timestamps will now raise | |
| ValueError if more than a second is lost in precision when the | |
| timestamp is cast to the platform C time_t type. There's no chance | |
| that the platform will do anything sensible with the result in such | |
| cases. This includes ctime(), localtime() and gmtime(). Assorted | |
| fromtimestamp() and utcfromtimestamp() methods in the datetime module | |
| were also protected. Closes bugs #919012 and 975996. | |
| - fcntl.ioctl now warns if the mutate flag is not specified. | |
| - nt now properly allows referring to UNC roots, e.g. in nt.stat(). | |
| - the weakref module now supports additional objects: array.array, | |
| sre.pattern_objects, file objects, and sockets. | |
| - operator.isMappingType() and operator.isSequenceType() now give | |
| fewer false positives. | |
| - socket.sslerror is now a subclass of socket.error . Also added | |
| socket.error to the socket module's C API. | |
| - Bug #920575: A problem where the _locale module segfaults on | |
| nl_langinfo(ERA) caused by GNU libc's illegal NULL return is fixed. | |
| - array objects now support the copy module. Also, their resizing | |
| scheme has been updated to match that used for list objects. This improves | |
| the performance (speed and memory usage) of append() operations. | |
| Also, array.array() and array.extend() now accept any iterable argument | |
| for repeated appends without needing to create another temporary array. | |
| - cStringIO.writelines() now accepts any iterable argument and writes | |
| the lines one at a time rather than joining them and writing once. | |
| Made a parallel change to StringIO.writelines(). Saves memory and | |
| makes suitable for use with generator expressions. | |
| - time.strftime() now checks that the values in its time tuple argument | |
| are within the proper boundaries to prevent possible crashes from the | |
| platform's C library implementation of strftime(). Can possibly | |
| break code that uses values outside the range that didn't cause | |
| problems previously (such as sitting day of year to 0). Fixes bug | |
| #897625. | |
| - The socket module now supports Bluetooth sockets, if the | |
| system has <bluetooth/bluetooth.h> | |
| - Added a collections module containing a new datatype, deque(), | |
| offering high-performance, thread-safe, memory friendly appends | |
| and pops on either side of the deque. | |
| - Several modules now take advantage of collections.deque() for | |
| improved performance: Queue, mutex, shlex, threading, and pydoc. | |
| - The operator module has two new functions, attrgetter() and | |
| itemgetter() which are useful for creating fast data extractor | |
| functions for map(), list.sort(), itertools.groupby(), and | |
| other functions that expect a function argument. | |
| - socket.SHUT_{RD,WR,RDWR} was added. | |
| - os.getsid was added. | |
| - The pwd module incorrectly advertised its struct type as | |
| struct_pwent; this has been renamed to struct_passwd. (The old name | |
| is still supported for backwards compatibility.) | |
| - The xml.parsers.expat module now provides Expat 1.95.7. | |
| - socket.IPPROTO_IPV6 was added. | |
| - readline.clear_history was added. | |
| - select.select() now accepts sequences for its first three arguments. | |
| - cStringIO now supports the f.closed attribute. | |
| - The signal module now exposes SIGRTMIN and SIGRTMAX (if available). | |
| - curses module now supports use_default_colors(). [patch #739124] | |
| - Bug #811028: ncurses.h breakage on FreeBSD/MacOS X | |
| - Bug #814613: INET_ADDRSTRLEN fix needed for all compilers on SGI | |
| - Implemented non-recursive SRE matching scheme (#757624). | |
| - Implemented (?(id/name)yes|no) support in SRE (#572936). | |
| - random.seed() with no arguments or None uses time.time() as a default | |
| seed. Modified to match Py2.2 behavior and use fractional seconds so | |
| that successive runs are more likely to produce different sequences. | |
| - random.Random has a new method, getrandbits(k), which returns an int | |
| with k random bits. This method is now an optional part of the API | |
| for user defined generators. Any generator that defines genrandbits() | |
| can now use randrange() for ranges with a length >= 2**53. Formerly, | |
| randrange would return only even numbers for ranges that large (see | |
| SF bug #812202). Generators that do not define genrandbits() now | |
| issue a warning when randrange() is called with a range that large. | |
| - itertools has a new function, groupby() for aggregating iterables | |
| into groups sharing the same key (as determined by a key function). | |
| It offers some of functionality of SQL's groupby keyword and of | |
| the Unix uniq filter. | |
| - itertools now has a new tee() function which produces two independent | |
| iterators from a single iterable. | |
| - itertools.izip() with no arguments now returns an empty iterator instead | |
| of raising a TypeError exception. | |
| - Fixed #853061: allow BZ2Compressor.compress() to receive an empty string | |
| as parameter. | |
| Library | |
| ------- | |
| - Added a new module: cProfile, a C profiler with the same interface as the | |
| profile module. cProfile avoids some of the drawbacks of the hotshot | |
| profiler and provides a bit more information than the other two profilers. | |
| Based on "lsprof" (patch #1212837). | |
| - Bug #1266283: The new function "lexists" is now in os.path.__all__. | |
| - Bug #981530: Fix UnboundLocalError in shutil.rmtree(). This affects | |
| the documented behavior: the function passed to the onerror() | |
| handler can now also be os.listdir. | |
| - Bug #754449: threading.Thread objects no longer mask exceptions raised during | |
| interpreter shutdown with another exception from attempting to handle the | |
| original exception. | |
| - Added decimal.py per PEP 327. | |
| - Bug #981299: rsync is now a recognized protocol in urlparse that uses a | |
| "netloc" portion of a URL. | |
| - Bug #919012: shutil.move() will not try to move a directory into itself. | |
| Thanks Johannes Gijsbers. | |
| - Bug #934282: pydoc.stripid() is now case-insensitive. Thanks Robin Becker. | |
| - Bug #823209: cmath.log() now takes an optional base argument so that its | |
| API matches math.log(). | |
| - Bug #957381: distutils bdist_rpm no longer fails on recent RPM versions | |
| that generate a -debuginfo.rpm | |
| - os.path.devnull has been added for all supported platforms. | |
| - Fixed #877165: distutils now picks the right C++ compiler command | |
| on cygwin and mingw32. | |
| - urllib.urlopen().readline() now handles HTTP/0.9 correctly. | |
| - refactored site.py into functions. Also wrote regression tests for the | |
| module. | |
| - The distutils install command now supports the --home option and | |
| installation scheme for all platforms. | |
| - asyncore.loop now has a repeat count parameter that defaults to | |
| looping forever. | |
| - The distutils sdist command now ignores all .svn directories, in | |
| addition to CVS and RCS directories. .svn directories hold | |
| administrative files for the Subversion source control system. | |
| - Added a new module: cookielib. Automatic cookie handling for HTTP | |
| clients. Also, support for cookielib has been added to urllib2, so | |
| urllib2.urlopen() can transparently handle cookies. | |
| - stringprep.py now uses built-in set() instead of sets.Set(). | |
| - Bug #876278: Unbounded recursion in modulefinder | |
| - Bug #780300: Swap public and system ID in LexicalHandler.startDTD. | |
| Applications relying on the wrong order need to be corrected. | |
| - Bug #926075: Fixed a bug that returns a wrong pattern object | |
| for a string or unicode object in sre.compile() when a different | |
| type pattern with the same value exists. | |
| - Added countcallers arg to trace.Trace class (--trackcalls command line arg | |
| when run from the command prompt). | |
| - Fixed a caching bug in platform.platform() where the argument of 'terse' was | |
| not taken into consideration when caching value. | |
| - Added two new command-line arguments for profile (output file and | |
| default sort). | |
| - Added global runctx function to profile module | |
| - Add hlist missing entryconfigure and entrycget methods. | |
| - The ptcp154 codec was added for Kazakh character set support. | |
| - Support non-anonymous ftp URLs in urllib2. | |
| - The encodings package will now apply codec name aliases | |
| first before starting to try the import of the codec module. | |
| This simplifies overriding built-in codecs with external | |
| packages, e.g. the included CJK codecs with the JapaneseCodecs | |
| package, by adjusting the aliases dictionary in encodings.aliases | |
| accordingly. | |
| - base64 now supports RFC 3548 Base16, Base32, and Base64 encoding and | |
| decoding standards. | |
| - urllib2 now supports processors. A processor is a handler that | |
| implements an xxx_request or xxx_response method. These methods are | |
| called for all requests. | |
| - distutils compilers now compile source files in the same order as | |
| they are passed to the compiler. | |
| - pprint.pprint() and pprint.pformat() now have additional parameters | |
| indent, width and depth. | |
| - Patch #750542: pprint now will pretty print subclasses of list, tuple | |
| and dict too, as long as they don't overwrite __repr__(). | |
| - Bug #848614: distutils' msvccompiler fails to find the MSVC6 | |
| compiler because of incomplete registry entries. | |
| - httplib.HTTP.putrequest now offers to omit the implicit Accept-Encoding. | |
| - Patch #841977: modulefinder didn't find extension modules in packages | |
| - imaplib.IMAP4.thread was added. | |
| - Plugged a minor hole in tempfile.mktemp() due to the use of | |
| os.path.exists(), switched to using os.lstat() directly if possible. | |
| - bisect.py and heapq.py now have underlying C implementations | |
| for better performance. | |
| - heapq.py has two new functions, nsmallest() and nlargest(). | |
| - traceback.format_exc has been added (similar to print_exc but it returns | |
| a string). | |
| - xmlrpclib.MultiCall has been added. | |
| - poplib.POP3_SSL has been added. | |
| - tmpfile.mkstemp now returns an absolute path even if dir is relative. | |
| - urlparse is RFC 2396 compliant. | |
| - The fieldnames argument to the csv module's DictReader constructor is now | |
| optional. If omitted, the first row of the file will be used as the | |
| list of fieldnames. | |
| - encodings.bz2_codec was added for access to bz2 compression | |
| using "a long string".encode('bz2') | |
| - Various improvements to unittest.py, realigned with PyUnit CVS. | |
| - dircache now passes exceptions to the caller, instead of returning | |
| empty lists. | |
| - The bsddb module and dbhash module now support the iterator and | |
| mapping protocols which make them more substitutable for dictionaries | |
| and shelves. | |
| - The csv module's DictReader and DictWriter classes now accept keyword | |
| arguments. This was an omission in the initial implementation. | |
| - The email package handles some RFC 2231 parameters with missing | |
| CHARSET fields better. It also includes a patch to parameter | |
| parsing when semicolons appear inside quotes. | |
| - sets.py now runs under Py2.2. In addition, the argument restrictions | |
| for most set methods (but not the operators) have been relaxed to | |
| allow any iterable. | |
| - _strptime.py now has a behind-the-scenes caching mechanism for the most | |
| recent TimeRE instance used along with the last five unique directive | |
| patterns. The overall module was also made more thread-safe. | |
| - random.cunifvariate() and random.stdgamma() were deprecated in Py2.3 | |
| and removed in Py2.4. | |
| - Bug #823328: urllib2.py's HTTP Digest Auth support works again. | |
| - Patch #873597: CJK codecs are imported into rank of default codecs. | |
| Tools/Demos | |
| ----------- | |
| - A hotshotmain script was added to the Tools/scripts directory that | |
| makes it easy to run a script under control of the hotshot profiler. | |
| - The db2pickle and pickle2db scripts can now dump/load gdbm files. | |
| - The file order on the command line of the pickle2db script was reversed. | |
| It is now [ picklefile ] dbfile. This provides better symmetry with | |
| db2pickle. The file arguments to both scripts are now source followed by | |
| destination in situations where both files are given. | |
| - The pydoc script will display a link to the module documentation for | |
| modules determined to be part of the core distribution. The documentation | |
| base directory defaults to http://www.python.org/doc/current/lib/ but can | |
| be changed by setting the PYTHONDOCS environment variable. | |
| - texcheck.py now detects double word errors. | |
| - md5sum.py mistakenly opened input files in text mode by default, a | |
| silent and dangerous change from previous releases. It once again | |
| opens input files in binary mode by default. The -t and -b flags | |
| remain for compatibility with the 2.3 release, but -b is the default | |
| now. | |
| - py-electric-colon now works when pending-delete/delete-selection mode is | |
| in effect | |
| - py-help-at-point is no longer bound to the F1 key - it's still bound to | |
| C-c C-h | |
| - Pynche was fixed to not crash when there is no ~/.pynche file and no | |
| -d option was given. | |
| Build | |
| ----- | |
| - Bug #978645: Modules/getpath.c now builds properly in --disable-framework | |
| build under OS X. | |
| - Profiling using gprof is now available if Python is configured with | |
| --enable-profiling. | |
| - Profiling the VM using the Pentium TSC is now possible if Python | |
| is configured --with-tsc. | |
| - In order to find libraries, setup.py now also looks in /lib64, for use | |
| on AMD64. | |
| - Bug #934635: Fixed a bug where the configure script couldn't detect | |
| getaddrinfo() properly if the KAME stack had SCTP support. | |
| - Support for missing ANSI C header files (limits.h, stddef.h, etc) was | |
| removed. | |
| - Systems requiring the D4, D6 or D7 variants of pthreads are no longer | |
| supported (see PEP 11). | |
| - Universal newline support can no longer be disabled (see PEP 11). | |
| - Support for DGUX, SunOS 4, IRIX 4 and Minix was removed (see PEP 11). | |
| - Support for systems requiring --with-dl-dld or --with-sgi-dl was removed | |
| (see PEP 11). | |
| - Tests for sizeof(char) were removed since ANSI C mandates that | |
| sizeof(char) must be 1. | |
| C API | |
| ----- | |
| - Thanks to Anthony Tuininga, the datetime module now supplies a C API | |
| containing type-check macros and constructors. See new docs in the | |
| Python/C API Reference Manual for details. | |
| - Private function _PyTime_DoubleToTimet added, to convert a Python | |
| timestamp (C double) to platform time_t with some out-of-bounds | |
| checking. Declared in new header file timefuncs.h. It would be | |
| good to expose some other internal timemodule.c functions there. | |
| - New public functions PyEval_EvaluateFrame and PyGen_New to expose | |
| generator objects. | |
| - New public functions Py_IncRef() and Py_DecRef(), exposing the | |
| functionality of the Py_XINCREF() and Py_XDECREF macros. Useful for | |
| runtime dynamic embedding of Python. See patch #938302, by Bob | |
| Ippolito. | |
| - Added a new macro, PySequence_Fast_ITEMS, which retrieves a fast sequence's | |
| underlying array of PyObject pointers. Useful for high speed looping. | |
| - Created a new method flag, METH_COEXIST, which causes a method to be loaded | |
| even if already defined by a slot wrapper. This allows a __contains__ | |
| method, for example, to co-exist with a defined sq_contains slot. This | |
| is helpful because the PyCFunction can take advantage of optimized calls | |
| whenever METH_O or METH_NOARGS flags are defined. | |
| - Added a new function, PyDict_Contains(d, k) which is like | |
| PySequence_Contains() but is specific to dictionaries and executes | |
| about 10% faster. | |
| - Added three new macros: Py_RETURN_NONE, Py_RETURN_TRUE, and Py_RETURN_FALSE. | |
| Each return the singleton they mention after Py_INCREF()ing them. | |
| - Added a new function, PyTuple_Pack(n, ...) for constructing tuples from a | |
| variable length argument list of Python objects without having to invoke | |
| the more complex machinery of Py_BuildValue(). PyTuple_Pack(3, a, b, c) | |
| is equivalent to Py_BuildValue("(OOO)", a, b, c). | |
| Windows | |
| ------- | |
| - The _winreg module could segfault when reading very large registry | |
| values, due to unchecked alloca() calls (SF bug 851056). The fix is | |
| uses either PyMem_Malloc(n) or PyString_FromStringAndSize(NULL, n), | |
| as appropriate, followed by a size check. | |
| - file.truncate() could misbehave if the file was open for update | |
| (modes r+, rb+, w+, wb+), and the most recent file operation before | |
| the truncate() call was an input operation. SF bug 801631. | |
| What's New in Python 2.3 final? | |
| =============================== | |
| *Release date: 29-Jul-2003* | |
| IDLE | |
| ---- | |
| - Bug 778400: IDLE hangs when selecting "Edit with IDLE" from explorer. | |
| This was unique to Windows, and was fixed by adding an -n switch to | |
| the command the Windows installer creates to execute "Edit with IDLE" | |
| context-menu actions. | |
| - IDLE displays a new message upon startup: some "personal firewall" | |
| kinds of programs (for example, ZoneAlarm) open a dialog of their | |
| own when any program opens a socket. IDLE does use sockets, talking | |
| on the computer's internal loopback interface. This connection is not | |
| visible on any external interface and no data is sent to or received | |
| from the internet. So, if you get such a dialog when opening IDLE, | |
| asking whether to let pythonw.exe talk to address 127.0.0.1, say yes, | |
| and rest assured no communication external to your machine is taking | |
| place. If you don't allow it, IDLE won't be able to start. | |
| What's New in Python 2.3 release candidate 2? | |
| ============================================= | |
| *Release date: 24-Jul-2003* | |
| Core and builtins | |
| ----------------- | |
| - It is now possible to import from zipfiles containing additional | |
| data bytes before the zip compatible archive. Zipfiles containing a | |
| comment at the end are still unsupported. | |
| Extension modules | |
| ----------------- | |
| - A longstanding bug in the parser module's initialization could cause | |
| fatal internal refcount confusion when the module got initialized more | |
| than once. This has been fixed. | |
| - Fixed memory leak in pyexpat; using the parser's ParseFile() method | |
| with open files that aren't instances of the standard file type | |
| caused an instance of the bound .read() method to be leaked on every | |
| call. | |
| - Fixed some leaks in the locale module. | |
| Library | |
| ------- | |
| - Lib/encodings/rot_13.py when used as a script, now more properly | |
| uses the first Python interpreter on your path. | |
| - Removed caching of TimeRE (and thus LocaleTime) in _strptime.py to | |
| fix a locale related bug in the test suite. Although another patch | |
| was needed to actually fix the problem, the cache code was not | |
| restored. | |
| IDLE | |
| ---- | |
| - Calltips patches. | |
| Build | |
| ----- | |
| - For MacOSX, added -mno-fused-madd to BASECFLAGS to fix test_coercion | |
| on Panther (OSX 10.3). | |
| C API | |
| ----- | |
| Windows | |
| ------- | |
| - The tempfile module could do insane imports on Windows if PYTHONCASEOK | |
| was set, making temp file creation impossible. Repaired. | |
| - Add a patch to workaround pthread_sigmask() bugs in Cygwin. | |
| Mac | |
| --- | |
| - Various fixes to pimp. | |
| - Scripts runs with pythonw no longer had full window manager access. | |
| - Don't force boot-disk-only install, for reasons unknown it causes | |
| more problems than it solves. | |
| What's New in Python 2.3 release candidate 1? | |
| ============================================= | |
| *Release date: 18-Jul-2003* | |
| Core and builtins | |
| ----------------- | |
| - The new function sys.getcheckinterval() returns the last value set | |
| by sys.setcheckinterval(). | |
| - Several bugs in the symbol table phase of the compiler have been | |
| fixed. Errors could be lost and compilation could fail without | |
| reporting an error. SF patch 763201. | |
| - The interpreter is now more robust about importing the warnings | |
| module. In an executable generated by freeze or similar programs, | |
| earlier versions of 2.3 would fail if the warnings module could | |
| not be found on the file system. Fixes SF bug 771097. | |
| - A warning about assignments to module attributes that shadow | |
| builtins, present in earlier releases of 2.3, has been removed. | |
| - It is not possible to create subclasses of built-in types like str | |
| and tuple that define an itemsize. Earlier releases of Python 2.3 | |
| allowed this by mistake, leading to crashes and other problems. | |
| - The thread_id is now initialized to 0 in a non-thread build. SF bug | |
| 770247. | |
| - SF bug 762891: "del p[key]" on proxy object no longer raises SystemError. | |
| Extension modules | |
| ----------------- | |
| - weakref.proxy() can now handle "del obj[i]" for proxy objects | |
| defining __delitem__. Formerly, it generated a SystemError. | |
| - SSL no longer crashes the interpreter when the remote side disconnects. | |
| - On Unix the mmap module can again be used to map device files. | |
| - time.strptime now exclusively uses the Python implementation | |
| contained within the _strptime module. | |
| - The print slot of weakref proxy objects was removed, because it was | |
| not consistent with the object's repr slot. | |
| - The mmap module only checks file size for regular files, not | |
| character or block devices. SF patch 708374. | |
| - The cPickle Pickler garbage collection support was fixed to traverse | |
| the find_class attribute, if present. | |
| - There are several fixes for the bsddb3 wrapper module. | |
| bsddb3 no longer crashes if an environment is closed before a cursor | |
| (SF bug 763298). | |
| The DB and DBEnv set_get_returns_none function was extended to take | |
| a level instead of a boolean flag. The new level 2 means that in | |
| addition, cursor.set()/.get() methods return None instead of raising | |
| an exception. | |
| A typo was fixed in DBCursor.join_item(), preventing a crash. | |
| Library | |
| ------- | |
| - distutils now supports MSVC 7.1 | |
| - doctest now examines all docstrings by default. Previously, it would | |
| skip over functions with private names (as indicated by the underscore | |
| naming convention). The old default created too much of a risk that | |
| user tests were being skipped inadvertently. Note, this change could | |
| break code in the unlikely case that someone had intentionally put | |
| failing tests in the docstrings of private functions. The breakage | |
| is easily fixable by specifying the old behavior when calling testmod() | |
| or Tester(). | |
| - There were several fixes to the way dumbdbms are closed. It's vital | |
| that a dumbdbm database be closed properly, else the on-disk data | |
| and directory files can be left in mutually inconsistent states. | |
| dumbdbm.py's _Database.__del__() method attempted to close the | |
| database properly, but a shutdown race in _Database._commit() could | |
| prevent this from working, so that a program trusting __del__() to | |
| get the on-disk files in synch could be badly surprised. The race | |
| has been repaired. A sync() method was also added so that shelve | |
| can guarantee data is written to disk. | |
| The close() method can now be called more than once without complaint. | |
| - The classes in threading.py are now new-style classes. That they | |
| weren't before was an oversight. | |
| - The urllib2 digest authentication handlers now define the correct | |
| auth_header. The earlier versions would fail at runtime. | |
| - SF bug 763023: fix uncaught ZeroDivisionError in difflib ratio methods | |
| when there are no lines. | |
| - SF bug 763637: fix exception in Tkinter with after_cancel | |
| which could occur with Tk 8.4 | |
| - SF bug 770601: CGIHTTPServer.py now passes the entire environment | |
| to child processes. | |
| - SF bug 765238: add filter to fnmatch's __all__. | |
| - SF bug 748201: make time.strptime() error messages more helpful. | |
| - SF patch 764470: Do not dump the args attribute of a Fault object in | |
| xmlrpclib. | |
| - SF patch 549151: urllib and urllib2 now redirect POSTs on 301 | |
| responses. | |
| - SF patch 766650: The whichdb module was fixed to recognize dbm files | |
| generated by gdbm on OS/2 EMX. | |
| - SF bugs 763047 and 763052: fixes bug of timezone value being left as | |
| -1 when ``time.tzname[0] == time.tzname[1] and not time.daylight`` | |
| is true when it should only when time.daylight is true. | |
| - SF bug 764548: re now allows subclasses of str and unicode to be | |
| used as patterns. | |
| - SF bug 763637: In Tkinter, change after_cancel() to handle tuples | |
| of varying sizes. Tk 8.4 returns a different number of values | |
| than Tk 8.3. | |
| - SF bug 763023: difflib.ratio() did not catch zero division. | |
| - The Queue module now has an __all__ attribute. | |
| Tools/Demos | |
| ----------- | |
| - See Lib/idlelib/NEWS.txt for IDLE news. | |
| - SF bug 753592: webchecker/wsgui now handles user supplied directories. | |
| - The trace.py script has been removed. It is now in the standard library. | |
| Build | |
| ----- | |
| - Python now compiles with -fno-strict-aliasing if possible (SF bug 766696). | |
| - The socket module compiles on IRIX 6.5.10. | |
| - An irix64 system is treated the same way as an irix6 system (SF | |
| patch 764560). | |
| - Several definitions were missing on FreeBSD 5.x unless the | |
| __BSD_VISIBLE symbol was defined. configure now defines it as | |
| needed. | |
| C API | |
| ----- | |
| - Unicode objects now support mbcs as a built-in encoding, so the C | |
| API can use it without deferring to the encodings package. | |
| Windows | |
| ------- | |
| - The Windows implementation of PyThread_start_new_thread() never | |
| checked error returns from Windows functions correctly. As a result, | |
| it could claim to start a new thread even when the Microsoft | |
| _beginthread() function failed (due to "too many threads" -- this is | |
| on the order of thousands when it happens). In these cases, the | |
| Python exception :: | |
| thread.error: can't start new thread | |
| is raised now. | |
| - SF bug 766669: Prevent a GPF on interpreter exit when sockets are in | |
| use. The interpreter now calls WSACleanup() from Py_Finalize() | |
| instead of from DLL teardown. | |
| Mac | |
| --- | |
| - Bundlebuilder now inherits default values in the right way. It was | |
| previously possible for app bundles to get a type of "BNDL" instead | |
| of "APPL." Other improvements include, a --build-id option to | |
| specify the CFBundleIdentifier and using the --python option to set | |
| the executable in the bundle. | |
| - Fixed two bugs in MacOSX framework handling. | |
| - pythonw did not allow user interaction in 2.3rc1, this has been fixed. | |
| - Python is now compiled with -mno-fused-madd, making all tests pass | |
| on Panther. | |
| What's New in Python 2.3 beta 2? | |
| ================================ | |
| *Release date: 29-Jun-2003* | |
| Core and builtins | |
| ----------------- | |
| - A program can now set the environment variable PYTHONINSPECT to some | |
| string value in Python, and cause the interpreter to enter the | |
| interactive prompt at program exit, as if Python had been invoked | |
| with the -i option. | |
| - list.index() now accepts optional start and stop arguments. Similar | |
| changes were made to UserList.index(). SF feature request 754014. | |
| - SF patch 751998 fixes an unwanted side effect of the previous fix | |
| for SF bug 742860 (the next item). | |
| - SF bug 742860: "WeakKeyDictionary __delitem__ uses iterkeys". This | |
| wasn't threadsafe, was very inefficient (expected time O(len(dict)) | |
| instead of O(1)), and could raise a spurious RuntimeError if another | |
| thread mutated the dict during __delitem__, or if a comparison function | |
| mutated it. It also neglected to raise KeyError when the key wasn't | |
| present; didn't raise TypeError when the key wasn't of a weakly | |
| referencable type; and broke various more-or-less obscure dict | |
| invariants by using a sequence of equality comparisons over the whole | |
| set of dict keys instead of computing the key's hash code to narrow | |
| the search to those keys with the same hash code. All of these are | |
| considered to be bugs. A new implementation of __delitem__ repairs all | |
| that, but note that fixing these bugs may change visible behavior in | |
| code relying (whether intentionally or accidentally) on old behavior. | |
| - SF bug 734869: Fixed a compiler bug that caused a fatal error when | |
| compiling a list comprehension that contained another list comprehension | |
| embedded in a lambda expression. | |
| - SF bug 705231: builtin pow() no longer lets the platform C pow() | |
| raise -1.0 to integer powers, because (at least) glibc gets it wrong | |
| in some cases. The result should be -1.0 if the power is odd and 1.0 | |
| if the power is even, and any float with a sufficiently large exponent | |
| is (mathematically) an exact even integer. | |
| - SF bug 759227: A new-style class that implements __nonzero__() must | |
| return a bool or int (but not an int subclass) from that method. This | |
| matches the restriction on classic classes. | |
| - The encoding attribute has been added for file objects, and set to | |
| the terminal encoding on Unix and Windows. | |
| - The softspace attribute of file objects became read-only by oversight. | |
| It's writable again. | |
| - Reverted a 2.3 beta 1 change to iterators for subclasses of list and | |
| tuple. By default, the iterators now access data elements directly | |
| instead of going through __getitem__. If __getitem__ access is | |
| preferred, then __iter__ can be overridden. | |
| - SF bug 735247: The staticmethod and super types participate in | |
| garbage collection. Before this change, it was possible for leaks to | |
| occur in functions with non-global free variables that used these types. | |
| Extension modules | |
| ----------------- | |
| - the socket module has a new exception, socket.timeout, to allow | |
| timeouts to be handled separately from other socket errors. | |
| - SF bug 751276: cPickle has fixed to propagate exceptions raised in | |
| user code. In earlier versions, cPickle caught and ignored any | |
| exception when it performed operations that it expected to raise | |
| specific exceptions like AttributeError. | |
| - cPickle Pickler and Unpickler objects now participate in garbage | |
| collection. | |
| - mimetools.choose_boundary() could return duplicate strings at times, | |
| especially likely on Windows. The strings returned are now guaranteed | |
| unique within a single program run. | |
| - thread.interrupt_main() raises KeyboardInterrupt in the main thread. | |
| dummy_thread has also been modified to try to simulate the behavior. | |
| - array.array.insert() now treats negative indices as being relative | |
| to the end of the array, just like list.insert() does. (SF bug #739313) | |
| - The datetime module classes datetime, time, and timedelta are now | |
| properly subclassable. | |
| - _tkinter.{get|set}busywaitinterval was added. | |
| - itertools.islice() now accepts stop=None as documented. | |
| Fixes SF bug #730685. | |
| - the bsddb185 module is built in one restricted instance - | |
| /usr/include/db.h exists and defines HASHVERSION to be 2. This is true | |
| for many BSD-derived systems. | |
| Library | |
| ------- | |
| - Some happy doctest extensions from Jim Fulton have been added to | |
| doctest.py. These are already being used in Zope3. The two | |
| primary ones: | |
| doctest.debug(module, name) extracts the doctests from the named object | |
| in the given module, puts them in a temp file, and starts pdb running | |
| on that file. This is great when a doctest fails. | |
| doctest.DocTestSuite(module=None) returns a synthesized unittest | |
| TestSuite instance, to be run by the unittest framework, which | |
| runs all the doctests in the module. This allows writing tests in | |
| doctest style (which can be clearer and shorter than writing tests | |
| in unittest style), without losing unittest's powerful testing | |
| framework features (which doctest lacks). | |
| - For compatibility with doctests created before 2.3, if an expected | |
| output block consists solely of "1" and the actual output block | |
| consists solely of "True", it's accepted as a match; similarly | |
| for "0" and "False". This is quite un-doctest-like, but is practical. | |
| The behavior can be disabled by passing the new doctest module | |
| constant DONT_ACCEPT_TRUE_FOR_1 to the new optionflags optional | |
| argument. | |
| - ZipFile.testzip() now only traps BadZipfile exceptions. Previously, | |
| a bare except caught to much and reported all errors as a problem | |
| in the archive. | |
| - The logging module now has a new function, makeLogRecord() making | |
| LogHandler easier to interact with DatagramHandler and SocketHandler. | |
| - The cgitb module has been extended to support plain text display (SF patch | |
| 569574). | |
| - A brand new version of IDLE (from the IDLEfork project at | |
| SourceForge) is now included as Lib/idlelib. The old Tools/idle is | |
| no more. | |
| - Added a new module: trace (documentation missing). This module used | |
| to be distributed in Tools/scripts. It uses sys.settrace() to trace | |
| code execution -- either function calls or individual lines. It can | |
| generate tracing output during execution or a post-mortem report of | |
| code coverage. | |
| - The threading module has new functions settrace() and setprofile() | |
| that cooperate with the functions of the same name in the sys | |
| module. A function registered with the threading module will | |
| be used for all threads it creates. The new trace module uses this | |
| to provide tracing for code running in threads. | |
| - copy.py: applied SF patch 707900, fixing bug 702858, by Steven | |
| Taschuk. Copying a new-style class that had a reference to itself | |
| didn't work. (The same thing worked fine for old-style classes.) | |
| Builtin functions are now treated as atomic, fixing bug #746304. | |
| - difflib.py has two new functions: context_diff() and unified_diff(). | |
| - More fixes to urllib (SF 549151): (a) When redirecting, always use | |
| GET. This is common practice and more-or-less sanctioned by the | |
| HTTP standard. (b) Add a handler for 307 redirection, which becomes | |
| an error for POST, but a regular redirect for GET and HEAD | |
| - Added optional 'onerror' argument to os.walk(), to control error | |
| handling. | |
| - inspect.is{method|data}descriptor was added, to allow pydoc display | |
| __doc__ of data descriptors. | |
| - Fixed socket speed loss caused by use of the _socketobject wrapper class | |
| in socket.py. | |
| - timeit.py now checks the current directory for imports. | |
| - urllib2.py now knows how to order proxy classes, so the user doesn't | |
| have to insert it in front of other classes, nor do dirty tricks like | |
| inserting a "dummy" HTTPHandler after a ProxyHandler when building an | |
| opener with proxy support. | |
| - Iterators have been added for dbm keys. | |
| - random.Random objects can now be pickled. | |
| Tools/Demos | |
| ----------- | |
| - pydoc now offers help on keywords and topics. | |
| - Tools/idle is gone; long live Lib/idlelib. | |
| - diff.py prints file diffs in context, unified, or ndiff formats, | |
| providing a command line interface to difflib.py. | |
| - texcheck.py is a new script for making a rough validation of Python LaTeX | |
| files. | |
| Build | |
| ----- | |
| - Setting DESTDIR during 'make install' now allows specifying a | |
| different root directory. | |
| C API | |
| ----- | |
| - PyType_Ready(): If a type declares that it participates in gc | |
| (Py_TPFLAGS_HAVE_GC), and its base class does not, and its base class's | |
| tp_free slot is the default _PyObject_Del, and type does not define | |
| a tp_free slot itself, _PyObject_GC_Del is assigned to type->tp_free. | |
| Previously _PyObject_Del was inherited, which could at best lead to a | |
| segfault. In addition, if even after this magic the type's tp_free | |
| slot is _PyObject_Del or NULL, and the type is a base type | |
| (Py_TPFLAGS_BASETYPE), TypeError is raised: since the type is a base | |
| type, its dealloc function must call type->tp_free, and since the type | |
| is gc'able, tp_free must not be NULL or _PyObject_Del. | |
| - PyThreadState_SetAsyncExc(): A new API (deliberately accessible only | |
| from C) to interrupt a thread by sending it an exception. It is | |
| intentional that you have to write your own C extension to call it | |
| from Python. | |
| New platforms | |
| ------------- | |
| None this time. | |
| Tests | |
| ----- | |
| - test_imp rewritten so that it doesn't raise RuntimeError if run as a | |
| side effect of being imported ("import test.autotest"). | |
| Windows | |
| ------- | |
| - The Windows installer ships with Tcl/Tk 8.4.3 (upgraded from 8.4.1). | |
| - The installer always suggested that Python be installed on the C: | |
| drive, due to a hardcoded "C:" generated by the Wise installation | |
| wizard. People with machines where C: is not the system drive | |
| usually want Python installed on whichever drive is their system drive | |
| instead. We removed the hardcoded "C:", and two testers on machines | |
| where C: is not the system drive report that the installer now | |
| suggests their system drive. Note that you can always select the | |
| directory you want in the "Select Destination Directory" dialog -- | |
| that's what it's for. | |
| Mac | |
| --- | |
| - There's a new module called "autoGIL", which offers a mechanism to | |
| automatically release the Global Interpreter Lock when an event loop | |
| goes to sleep, allowing other threads to run. It's currently only | |
| supported on OSX, in the Mach-O version. | |
| - The OSA modules now allow direct access to properties of the | |
| toplevel application class (in AppleScript terminology). | |
| - The Package Manager can now update itself. | |
| SourceForge Bugs and Patches Applied | |
| ------------------------------------ | |
| 430160, 471893, 501716, 542562, 549151, 569574, 595837, 596434, | |
| 598163, 604210, 604716, 610332, 612627, 614770, 620190, 621891, | |
| 622042, 639139, 640236, 644345, 649742, 649742, 658233, 660022, | |
| 661318, 661676, 662807, 662923, 666219, 672855, 678325, 682347, | |
| 683486, 684981, 685773, 686254, 692776, 692959, 693094, 696777, | |
| 697989, 700827, 703666, 708495, 708604, 708901, 710733, 711902, | |
| 713722, 715782, 718286, 719359, 719367, 723136, 723831, 723962, | |
| 724588, 724767, 724767, 725942, 726150, 726446, 726869, 727051, | |
| 727719, 727719, 727805, 728277, 728563, 728656, 729096, 729103, | |
| 729293, 729297, 729300, 729317, 729395, 729622, 729817, 730170, | |
| 730296, 730594, 730685, 730826, 730963, 731209, 731403, 731504, | |
| 731514, 731626, 731635, 731643, 731644, 731644, 731689, 732124, | |
| 732143, 732234, 732284, 732284, 732479, 732761, 732783, 732951, | |
| 733667, 733781, 734118, 734231, 734869, 735051, 735293, 735527, | |
| 735613, 735694, 736962, 736962, 737970, 738066, 739313, 740055, | |
| 740234, 740301, 741806, 742126, 742741, 742860, 742860, 742911, | |
| 744041, 744104, 744238, 744687, 744877, 745055, 745478, 745525, | |
| 745620, 746012, 746304, 746366, 746801, 746953, 747348, 747667, | |
| 747954, 748846, 748849, 748973, 748975, 749191, 749210, 749759, | |
| 749831, 749911, 750008, 750092, 750542, 750595, 751038, 751107, | |
| 751276, 751451, 751916, 751941, 751956, 751998, 752671, 753451, | |
| 753602, 753617, 753845, 753925, 754014, 754340, 754447, 755031, | |
| 755087, 755147, 755245, 755683, 755987, 756032, 756996, 757058, | |
| 757229, 757818, 757821, 757822, 758112, 758910, 759227, 759889, | |
| 760257, 760703, 760792, 761104, 761337, 761519, 761830, 762455 | |
| What's New in Python 2.3 beta 1? | |
| ================================ | |
| *Release date: 25-Apr-2003* | |
| Core and builtins | |
| ----------------- | |
| - New format codes B, H, I, k and K have been implemented for | |
| PyArg_ParseTuple and PyBuild_Value. | |
| - New built-in function sum(seq, start=0) returns the sum of all the | |
| items in iterable object seq, plus start (items are normally numbers, | |
| and cannot be strings). | |
| - bool() called without arguments now returns False rather than | |
| raising an exception. This is consistent with calling the | |
| constructors for the other built-in types -- called without argument | |
| they all return the false value of that type. (SF patch #724135) | |
| - In support of PEP 269 (making the pgen parser generator accessible | |
| from Python), some changes to the pgen code structure were made; a | |
| few files that used to be linked only with pgen are now linked with | |
| Python itself. | |
| - The repr() of a weakref object now shows the __name__ attribute of | |
| the referenced object, if it has one. | |
| - super() no longer ignores data descriptors, except __class__. See | |
| the thread started at | |
| http://mail.python.org/pipermail/python-dev/2003-April/034338.html | |
| - list.insert(i, x) now interprets negative i as it would be | |
| interpreted by slicing, so negative values count from the end of the | |
| list. This was the only place where such an interpretation was not | |
| placed on a list index. | |
| - range() now works even if the arguments are longs with magnitude | |
| larger than sys.maxint, as long as the total length of the sequence | |
| fits. E.g., range(2**100, 2**101, 2**100) is the following list: | |
| [1267650600228229401496703205376L]. (SF patch #707427.) | |
| - Some horridly obscure problems were fixed involving interaction | |
| between garbage collection and old-style classes with "ambitious" | |
| getattr hooks. If an old-style instance didn't have a __del__ method, | |
| but did have a __getattr__ hook, and the instance became reachable | |
| only from an unreachable cycle, and the hook resurrected or deleted | |
| unreachable objects when asked to resolve "__del__", anything up to | |
| a segfault could happen. That's been repaired. | |
| - dict.pop now takes an optional argument specifying a default | |
| value to return if the key is not in the dict. If a default is not | |
| given and the key is not found, a KeyError will still be raised. | |
| Parallel changes were made to UserDict.UserDict and UserDict.DictMixin. | |
| [SF patch #693753] (contributed by Michael Stone.) | |
| - sys.getfilesystemencoding() was added to expose | |
| Py_FileSystemDefaultEncoding. | |
| - New function sys.exc_clear() clears the current exception. This is | |
| rarely needed, but can sometimes be useful to release objects | |
| referenced by the traceback held in sys.exc_info()[2]. (SF patch | |
| #693195.) | |
| - On 64-bit systems, a dictionary could contain duplicate long/int keys | |
| if the key value was larger than 2**32. See SF bug #689659. | |
| - Fixed SF bug #663074. The codec system was using global static | |
| variables to store internal data. As a result, any attempts to use the | |
| unicode system with multiple active interpreters, or successive | |
| interpreter executions, would fail. | |
| - "%c" % u"a" now returns a unicode string instead of raising a | |
| TypeError. u"%c" % 0xffffffff now raises an OverflowError instead | |
| of a ValueError to be consistent with "%c" % 256. See SF patch #710127. | |
| Extension modules | |
| ----------------- | |
| - The socket module now provides the functions inet_pton and inet_ntop | |
| for converting between string and packed representation of IP | |
| addresses. There is also a new module variable, has_ipv6, which is | |
| True iff the current Python has IPv6 support. See SF patch #658327. | |
| - Tkinter wrappers around Tcl variables now pass objects directly | |
| to Tcl, instead of first converting them to strings. | |
| - The .*? pattern in the re module is now special-cased to avoid the | |
| recursion limit. (SF patch #720991 -- many thanks to Gary Herron | |
| and Greg Chapman.) | |
| - New function sys.call_tracing() allows pdb to debug code | |
| recursively. | |
| - New function gc.get_referents(obj) returns a list of objects | |
| directly referenced by obj. In effect, it exposes what the object's | |
| tp_traverse slot does, and can be helpful when debugging memory | |
| leaks. | |
| - The iconv module has been removed from this release. | |
| - The platform-independent routines for packing floats in IEEE formats | |
| (struct.pack's <f, >f, <d, and >d codes; pickle and cPickle's protocol 1 | |
| pickling of floats) ignored that rounding can cause a carry to | |
| propagate. The worst consequence was that, in rare cases, <f and >f | |
| could produce strings that, when unpacked again, were a factor of 2 | |
| away from the original float. This has been fixed. See SF bug | |
| #705836. | |
| - New function time.tzset() provides access to the C library tzset() | |
| function, if supported. (SF patch #675422.) | |
| - Using createfilehandler, deletefilehandler, createtimerhandler functions | |
| on Tkinter.tkinter (_tkinter module) no longer crashes the interpreter. | |
| See SF bug #692416. | |
| - Modified the fcntl.ioctl() function to allow modification of a passed | |
| mutable buffer (for details see the reference documentation). | |
| - Made user requested changes to the itertools module. | |
| Subsumed the times() function into repeat(). | |
| Added chain() and cycle(). | |
| - The rotor module is now deprecated; the encryption algorithm it uses | |
| is not believed to be secure, and including crypto code with Python | |
| has implications for exporting and importing it in various countries. | |
| - The socket module now always uses the _socketobject wrapper class, even on | |
| platforms which have dup(2). The makefile() method is built directly | |
| on top of the socket without duplicating the file descriptor, allowing | |
| timeouts to work properly. | |
| Library | |
| ------- | |
| - New generator function os.walk() is an easy-to-use alternative to | |
| os.path.walk(). See os module docs for details. os.path.walk() | |
| isn't deprecated at this time, but may become deprecated in a | |
| future release. | |
| - Added new module "platform" which provides a wide range of tools | |
| for querying platform dependent features. | |
| - netrc now allows ASCII punctuation characters in passwords. | |
| - shelve now supports the optional writeback argument, and exposes | |
| pickle protocol versions. | |
| - Several methods of nntplib.NNTP have grown an optional file argument | |
| which specifies a file where to divert the command's output | |
| (already supported by the body() method). (SF patch #720468) | |
| - The self-documenting XML server library DocXMLRPCServer was added. | |
| - Support for internationalized domain names has been added through | |
| the 'idna' and 'punycode' encodings, the 'stringprep' module, the | |
| 'mkstringprep' tool, and enhancements to the socket and httplib | |
| modules. | |
| - htmlentitydefs has two new dictionaries: name2codepoint maps | |
| HTML entity names to Unicode codepoints (as integers). | |
| codepoint2name is the reverse mapping. See SF patch #722017. | |
| - pdb has a new command, "debug", which lets you step through | |
| arbitrary code from the debugger's (pdb) prompt. | |
| - unittest.failUnlessEqual and its equivalent unittest.assertEqual now | |
| return 'not a == b' rather than 'a != b'. This gives the desired | |
| result for classes that define __eq__ without defining __ne__. | |
| - sgmllib now supports SGML marked sections, in particular the | |
| MS Office extensions. | |
| - The urllib module now offers support for the iterator protocol. | |
| SF patch 698520 contributed by Brett Cannon. | |
| - New module timeit provides a simple framework for timing the | |
| execution speed of expressions and statements. | |
| - sets.Set objects now support mixed-type __eq__ and __ne__, instead | |
| of raising TypeError. If x is a Set object and y is a non-Set object, | |
| x == y is False, and x != y is True. This is akin to the change made | |
| for mixed-type comparisons of datetime objects in 2.3a2; more info | |
| about the rationale is in the NEWS entry for that. See also SF bug | |
| report <https://bugs.python.org/issue693121>. | |
| - On Unix platforms, if os.listdir() is called with a Unicode argument, | |
| it now returns Unicode strings. (This behavior was added earlier | |
| to the Windows NT/2k/XP version of os.listdir().) | |
| - Distutils: both 'py_modules' and 'packages' keywords can now be specified | |
| in core.setup(). Previously you could supply one or the other, but | |
| not both of them. (SF patch #695090 from Bernhard Herzog) | |
| - New csv package makes it easy to read/write CSV files. | |
| - Module shlex has been extended to allow posix-like shell parsings, | |
| including a split() function for easy splitting of quoted strings and | |
| commands. An iterator interface was also implemented. | |
| Tools/Demos | |
| ----------- | |
| - New script combinerefs.py helps analyze new PYTHONDUMPREFS output. | |
| See the module docstring for details. | |
| Build | |
| ----- | |
| - Fix problem building on OSF1 because the compiler only accepted | |
| preprocessor directives that start in column 1. (SF bug #691793.) | |
| C API | |
| ----- | |
| - Added PyGC_Collect(), equivalent to calling gc.collect(). | |
| - PyThreadState_GetDict() was changed not to raise an exception or | |
| issue a fatal error when no current thread state is available. This | |
| makes it possible to print dictionaries when no thread is active. | |
| - LONG_LONG was renamed to PY_LONG_LONG. Extensions that use this and | |
| need compatibility with previous versions can use this: | |
| #ifndef PY_LONG_LONG | |
| #define PY_LONG_LONG LONG_LONG | |
| #endif | |
| - Added PyObject_SelfIter() to fill the tp_iter slot for the | |
| typical case where the method returns its self argument. | |
| - The extended type structure used for heap types (new-style | |
| classes defined by Python code using a class statement) is now | |
| exported from object.h as PyHeapTypeObject. (SF patch #696193.) | |
| New platforms | |
| ------------- | |
| None this time. | |
| Tests | |
| ----- | |
| - test_timeout now requires -u network to be passed to regrtest to run. | |
| See SF bug #692988. | |
| Windows | |
| ------- | |
| - os.fsync() now exists on Windows, and calls the Microsoft _commit() | |
| function. | |
| - New function winsound.MessageBeep() wraps the Win32 API | |
| MessageBeep(). | |
| Mac | |
| --- | |
| - os.listdir() now returns Unicode strings on MacOS X when called with | |
| a Unicode argument. See the general news item under "Library". | |
| - A new method MacOS.WMAvailable() returns true if it is safe to access | |
| the window manager, false otherwise. | |
| - EasyDialogs dialogs are now movable-modal, and if the application is | |
| currently in the background they will ask to be moved to the foreground | |
| before displaying. | |
| - OSA Scripting support has improved a lot, and gensuitemodule.py can now | |
| be used by mere mortals. The documentation is now also more or less | |
| complete. | |
| - The IDE (in a framework build) now includes introductory documentation | |
| in Apple Help Viewer format. | |
| What's New in Python 2.3 alpha 2? | |
| ================================= | |
| *Release date: 19-Feb-2003* | |
| Core and builtins | |
| ----------------- | |
| - Negative positions returned from PEP 293 error callbacks are now | |
| treated as being relative to the end of the input string. Positions | |
| that are out of bounds raise an IndexError. | |
| - sys.path[0] (the directory from which the script is loaded) is now | |
| turned into an absolute pathname, unless it is the empty string. | |
| (SF patch #664376.) | |
| - Finally fixed the bug in compile() and exec where a string ending | |
| with an indented code block but no newline would raise SyntaxError. | |
| This would have been a four-line change in parsetok.c... Except | |
| codeop.py depends on this behavior, so a compilation flag had to be | |
| invented that causes the tokenizer to revert to the old behavior; | |
| this required extra changes to 2 .h files, 2 .c files, and 2 .py | |
| files. (Fixes SF bug #501622.) | |
| - If a new-style class defines neither __new__ nor __init__, its | |
| constructor would ignore all arguments. This is changed now: the | |
| constructor refuses arguments in this case. This might break code | |
| that worked under Python 2.2. The simplest fix is to add a no-op | |
| __init__: ``def __init__(self, *args, **kw): pass``. | |
| - Through a bytecode optimizer bug (and I bet you didn't even know | |
| Python *had* a bytecode optimizer :-), "unsigned" hex/oct constants | |
| with a leading minus sign would come out with the wrong sign. | |
| ("Unsigned" hex/oct constants are those with a face value in the | |
| range sys.maxint+1 through sys.maxint*2+1, inclusive; these have | |
| always been interpreted as negative numbers through sign folding.) | |
| E.g. 0xffffffff is -1, and -(0xffffffff) is 1, but -0xffffffff would | |
| come out as -4294967295. This was the case in Python 2.2 through | |
| 2.2.2 and 2.3a1, and in Python 2.4 it will once again have that | |
| value, but according to PEP 237 it really needs to be 1 now. This | |
| will be backported to Python 2.2.3 a well. (SF #660455) | |
| - int(s, base) sometimes sign-folds hex and oct constants; it only | |
| does this when base is 0 and s.strip() starts with a '0'. When the | |
| sign is actually folded, as in int("0xffffffff", 0) on a 32-bit | |
| machine, which returns -1, a FutureWarning is now issued; in Python | |
| 2.4, this will return 4294967295L, as do int("+0xffffffff", 0) and | |
| int("0xffffffff", 16) right now. (PEP 347) | |
| - super(X, x): x may now be a proxy for an X instance, i.e. | |
| issubclass(x.__class__, X) but not issubclass(type(x), X). | |
| - isinstance(x, X): if X is a new-style class, this is now equivalent | |
| to issubclass(type(x), X) or issubclass(x.__class__, X). Previously | |
| only type(x) was tested. (For classic classes this was already the | |
| case.) | |
| - compile(), eval() and the exec statement now fully support source code | |
| passed as unicode strings. | |
| - int subclasses can be initialized with longs if the value fits in an int. | |
| See SF bug #683467. | |
| - long(string, base) takes time linear in len(string) when base is a power | |
| of 2 now. It used to take time quadratic in len(string). | |
| - filter returns now Unicode results for Unicode arguments. | |
| - raw_input can now return Unicode objects. | |
| - List objects' sort() method now accepts None as the comparison function. | |
| Passing None is semantically identical to calling sort() with no | |
| arguments. | |
| - Fixed crash when printing a subclass of str and __str__ returned self. | |
| See SF bug #667147. | |
| - Fixed an invalid RuntimeWarning and an undetected error when trying | |
| to convert a long integer into a float which couldn't fit. | |
| See SF bug #676155. | |
| - Function objects now have a __module__ attribute that is bound to | |
| the name of the module in which the function was defined. This | |
| applies for C functions and methods as well as functions and methods | |
| defined in Python. This attribute is used by pickle.whichmodule(), | |
| which changes the behavior of whichmodule slightly. In Python 2.2 | |
| whichmodule() returns "__main__" for functions that are not defined | |
| at the top-level of a module (examples: methods, nested functions). | |
| Now whichmodule() will return the proper module name. | |
| Extension modules | |
| ----------------- | |
| - operator.isNumberType() now checks that the object has a nb_int or | |
| nb_float slot, rather than simply checking whether it has a non-NULL | |
| tp_as_number pointer. | |
| - The imp module now has ways to acquire and release the "import | |
| lock": imp.acquire_lock() and imp.release_lock(). Note: this is a | |
| reentrant lock, so releasing the lock only truly releases it when | |
| this is the last release_lock() call. You can check with | |
| imp.lock_held(). (SF bug #580952 and patch #683257.) | |
| - Change to cPickle to match pickle.py (see below and PEP 307). | |
| - Fix some bugs in the parser module. SF bug #678518. | |
| - Thanks to Scott David Daniels, a subtle bug in how the zlib | |
| extension implemented flush() was fixed. Scott also rewrote the | |
| zlib test suite using the unittest module. (SF bug #640230 and | |
| patch #678531.) | |
| - Added an itertools module containing high speed, memory efficient | |
| looping constructs inspired by tools from Haskell and SML. | |
| - The SSL module now handles sockets with a timeout set correctly (SF | |
| patch #675750, fixing SF bug #675552). | |
| - os/posixmodule has grown the sysexits.h constants (EX_OK and friends). | |
| - Fixed broken threadstate swap in readline that could cause fatal | |
| errors when a readline hook was being invoked while a background | |
| thread was active. (SF bugs #660476 and #513033.) | |
| - fcntl now exposes the strops.h I_* constants. | |
| - Fix a crash on Solaris that occurred when calling close() on | |
| an mmap'ed file which was already closed. (SF patch #665913) | |
| - Fixed several serious bugs in the zipimport implementation. | |
| - datetime changes: | |
| The date class is now properly subclassable. (SF bug #720908) | |
| The datetime and datetimetz classes have been collapsed into a single | |
| datetime class, and likewise the time and timetz classes into a single | |
| time class. Previously, a datetimetz object with tzinfo=None acted | |
| exactly like a datetime object, and similarly for timetz. This wasn't | |
| enough of a difference to justify distinct classes, and life is simpler | |
| now. | |
| today() and now() now round system timestamps to the closest | |
| microsecond <https://bugs.python.org/issue661086>. This repairs an | |
| irritation most likely seen on Windows systems. | |
| In dt.astimezone(tz), if tz.utcoffset(dt) returns a duration, | |
| ValueError is raised if tz.dst(dt) returns None (2.3a1 treated it | |
| as 0 instead, but a tzinfo subclass wishing to participate in | |
| time zone conversion has to take a stand on whether it supports | |
| DST; if you don't care about DST, then code dst() to return 0 minutes, | |
| meaning that DST is never in effect). | |
| The tzinfo methods utcoffset() and dst() must return a timedelta object | |
| (or None) now. In 2.3a1 they could also return an int or long, but that | |
| was an unhelpfully redundant leftover from an earlier version wherein | |
| they couldn't return a timedelta. TOOWTDI. | |
| The example tzinfo class for local time had a bug. It was replaced | |
| by a later example coded by Guido. | |
| datetime.astimezone(tz) no longer raises an exception when the | |
| input datetime has no UTC equivalent in tz. For typical "hybrid" time | |
| zones (a single tzinfo subclass modeling both standard and daylight | |
| time), this case can arise one hour per year, at the hour daylight time | |
| ends. See new docs for details. In short, the new behavior mimics | |
| the local wall clock's behavior of repeating an hour in local time. | |
| dt.astimezone() can no longer be used to convert between naive and aware | |
| datetime objects. If you merely want to attach, or remove, a tzinfo | |
| object, without any conversion of date and time members, use | |
| dt.replace(tzinfo=whatever) instead, where "whatever" is None or a | |
| tzinfo subclass instance. | |
| A new method tzinfo.fromutc(dt) can be overridden in tzinfo subclasses | |
| to give complete control over how a UTC time is to be converted to | |
| a local time. The default astimezone() implementation calls fromutc() | |
| as its last step, so a tzinfo subclass can affect that too by overriding | |
| fromutc(). It's expected that the default fromutc() implementation will | |
| be suitable as-is for "almost all" time zone subclasses, but the | |
| creativity of political time zone fiddling appears unbounded -- fromutc() | |
| allows the highly motivated to emulate any scheme expressible in Python. | |
| datetime.now(): The optional tzinfo argument was undocumented (that's | |
| repaired), and its name was changed to tz ("tzinfo" is overloaded enough | |
| already). With a tz argument, now(tz) used to return the local date | |
| and time, and attach tz to it, without any conversion of date and time | |
| members. This was less than useful. Now now(tz) returns the current | |
| date and time as local time in tz's time zone, akin to :: | |
| tz.fromutc(datetime.utcnow().replace(tzinfo=utc)) | |
| where "utc" is an instance of a tzinfo subclass modeling UTC. Without | |
| a tz argument, now() continues to return the current local date and time, | |
| as a naive datetime object. | |
| datetime.fromtimestamp(): Like datetime.now() above, this had less than | |
| useful behavior when the optional tinzo argument was specified. See | |
| also SF bug report <https://bugs.python.org/issue660872>. | |
| date and datetime comparison: In order to prevent comparison from | |
| falling back to the default compare-object-addresses strategy, these | |
| raised TypeError whenever they didn't understand the other object type. | |
| They still do, except when the other object has a "timetuple" attribute, | |
| in which case they return NotImplemented now. This gives other | |
| datetime objects (e.g., mxDateTime) a chance to intercept the | |
| comparison. | |
| date, time, datetime and timedelta comparison: When the exception | |
| for mixed-type comparisons in the last paragraph doesn't apply, if | |
| the comparison is == then False is returned, and if the comparison is | |
| != then True is returned. Because dict lookup and the "in" operator | |
| only invoke __eq__, this allows, for example, :: | |
| if some_datetime in some_sequence: | |
| and :: | |
| some_dict[some_timedelta] = whatever | |
| to work as expected, without raising TypeError just because the | |
| sequence is heterogeneous, or the dict has mixed-type keys. [This | |
| seems like a good idea to implement for all mixed-type comparisons | |
| that don't want to allow falling back to address comparison.] | |
| The constructors building a datetime from a timestamp could raise | |
| ValueError if the platform C localtime()/gmtime() inserted "leap | |
| seconds". Leap seconds are ignored now. On such platforms, it's | |
| possible to have timestamps that differ by a second, yet where | |
| datetimes constructed from them are equal. | |
| The pickle format of date, time and datetime objects has changed | |
| completely. The undocumented pickler and unpickler functions no | |
| longer exist. The undocumented __setstate__() and __getstate__() | |
| methods no longer exist either. | |
| Library | |
| ------- | |
| - The logging module was updated slightly; the WARN level was renamed | |
| to WARNING, and the matching function/method warn() to warning(). | |
| - The pickle and cPickle modules were updated with a new pickling | |
| protocol (documented by pickletools.py, see below) and several | |
| extensions to the pickle customization API (__reduce__, __setstate__ | |
| etc.). The copy module now uses more of the pickle customization | |
| API to copy objects that don't implement __copy__ or __deepcopy__. | |
| See PEP 307 for details. | |
| - The distutils "register" command now uses http://www.python.org/pypi | |
| as the default repository. (See PEP 301.) | |
| - the platform dependent path related variables sep, altsep, | |
| pathsep, curdir, pardir and defpath are now defined in the platform | |
| dependent path modules (e.g. ntpath.py) rather than os.py, so these | |
| variables are now available via os.path. They continue to be | |
| available from the os module. | |
| (see <https://bugs.python.org/issue680789>). | |
| - array.array was added to the types repr.py knows about (see | |
| <https://bugs.python.org/issue680789>). | |
| - The new pickletools.py contains lots of documentation about pickle | |
| internals, and supplies some helpers for working with pickles, such as | |
| a symbolic pickle disassembler. | |
| - xmlrpclib.py now supports the built-in boolean type. | |
| - py_compile has a new 'doraise' flag and a new PyCompileError | |
| exception. | |
| - SimpleXMLRPCServer now supports CGI through the CGIXMLRPCRequestHandler | |
| class. | |
| - The sets module now raises TypeError in __cmp__, to clarify that | |
| sets are not intended to be three-way-compared; the comparison | |
| operators are overloaded as subset/superset tests. | |
| - Bastion.py and rexec.py are disabled. These modules are not safe in | |
| Python 2.2. or 2.3. | |
| - realpath is now exported when doing ``from poxixpath import *``. | |
| It is also exported for ntpath, macpath, and os2emxpath. | |
| See SF bug #659228. | |
| - New module tarfile from Lars Gustäbel provides a comprehensive interface | |
| to tar archive files with transparent gzip and bzip2 compression. | |
| See SF patch #651082. | |
| - urlparse can now parse imap:// URLs. See SF feature request #618024. | |
| - Tkinter.Canvas.scan_dragto() provides an optional parameter to support | |
| the gain value which is passed to Tk. SF bug# 602259. | |
| - Fix logging.handlers.SysLogHandler protocol when using UNIX domain sockets. | |
| See SF patch #642974. | |
| - The dospath module was deleted. Use the ntpath module when manipulating | |
| DOS paths from other platforms. | |
| Tools/Demos | |
| ----------- | |
| - Two new scripts (db2pickle.py and pickle2db.py) were added to the | |
| Tools/scripts directory to facilitate conversion from the old bsddb module | |
| to the new one. While the user-visible API of the new module is | |
| compatible with the old one, it's likely that the version of the | |
| underlying database library has changed. To convert from the old library, | |
| run the db2pickle.py script using the old version of Python to convert it | |
| to a pickle file. After upgrading Python, run the pickle2db.py script | |
| using the new version of Python to reconstitute your database. For | |
| example: | |
| % python2.2 db2pickle.py -h some.db > some.pickle | |
| % python2.3 pickle2db.py -h some.db.new < some.pickle | |
| Run the scripts without any args to get a usage message. | |
| Build | |
| ----- | |
| - The audio driver tests (test_ossaudiodev.py and | |
| test_linuxaudiodev.py) are no longer run by default. This is | |
| because they don't always work, depending on your hardware and | |
| software. To run these tests, you must use an invocation like :: | |
| ./python Lib/test/regrtest.py -u audio test_ossaudiodev | |
| - On systems which build using the configure script, compiler flags which | |
| used to be lumped together using the OPT flag have been split into two | |
| groups, OPT and BASECFLAGS. OPT is meant to carry just optimization- and | |
| debug-related flags like "-g" and "-O3". BASECFLAGS is meant to carry | |
| compiler flags that are required to get a clean compile. On some | |
| platforms (many Linux flavors in particular) BASECFLAGS will be empty by | |
| default. On others, such as Mac OS X and SCO, it will contain required | |
| flags. This change allows people building Python to override OPT without | |
| fear of clobbering compiler flags which are required to get a clean build. | |
| - On Darwin/Mac OS X platforms, /sw/lib and /sw/include are added to the | |
| relevant search lists in setup.py. This allows users building Python to | |
| take advantage of the many packages available from the fink project | |
| <http://fink.sf.net/>. | |
| - A new Makefile target, scriptsinstall, installs a number of useful scripts | |
| from the Tools/scripts directory. | |
| C API | |
| ----- | |
| - PyEval_GetFrame() is now declared to return a ``PyFrameObject *`` | |
| instead of a plain ``PyObject *``. (SF patch #686601.) | |
| - PyNumber_Check() now checks that the object has a nb_int or nb_float | |
| slot, rather than simply checking whether it has a non-NULL | |
| tp_as_number pointer. | |
| - A C type that inherits from a base type that defines tp_as_buffer | |
| will now inherit the tp_as_buffer pointer if it doesn't define one. | |
| (SF #681367) | |
| - The PyArg_Parse functions now issue a DeprecationWarning if a float | |
| argument is provided when an integer is specified (this affects the 'b', | |
| 'B', 'h', 'H', 'i', and 'l' codes). Future versions of Python will | |
| raise a TypeError. | |
| Tests | |
| ----- | |
| - Several tests weren't being run from regrtest.py (test_timeout.py, | |
| test_tarfile.py, test_netrc.py, test_multifile.py, | |
| test_importhooks.py and test_imp.py). Now they are. (Note to | |
| developers: please read Lib/test/README when creating a new test, to | |
| make sure to do it right! All tests need to use either unittest or | |
| pydoc.) | |
| - Added test_posix.py, a test suite for the posix module. | |
| - Added test_hexoct.py, a test suite for hex/oct constant folding. | |
| Windows | |
| ------- | |
| - The timeout code for socket connect() didn't work right; this has | |
| now been fixed. test_timeout.py should pass (at least most of the | |
| time). | |
| - distutils' msvccompiler class now passes the preprocessor options to | |
| the resource compiler. See SF patch #669198. | |
| - The bsddb module now ships with Sleepycat's 4.1.25.NC, the latest | |
| release without strong cryptography. | |
| - sys.path[0], if it contains a directory name, is now always an | |
| absolute pathname. (SF patch #664376.) | |
| - The new logging package is now installed by the Windows installer. It | |
| wasn't in 2.3a1 due to oversight. | |
| Mac | |
| --- | |
| - There are new dialogs EasyDialogs.AskFileForOpen, AskFileForSave | |
| and AskFolder. The old macfs.StandardGetFile and friends are deprecated. | |
| - Most of the standard library now uses pathnames or FSRefs in preference | |
| of FSSpecs, and use the underlying Carbon.File and Carbon.Folder modules | |
| in stead of macfs. macfs will probably be deprecated in the future. | |
| - Type Carbon.File.FSCatalogInfo and supporting methods have been implemented. | |
| This also makes macfs.FSSpec.SetDates() work again. | |
| - There is a new module pimp, the package install manager for Python, and | |
| accompanying applet PackageManager. These allow you to easily download | |
| and install pretested extension packages either in source or binary | |
| form. Only in MacPython-OSX. | |
| - Applets are now built with bundlebuilder in MacPython-OSX, which should make | |
| them more robust and also provides a path towards BuildApplication. The | |
| downside of this change is that applets can no longer be run from the | |
| Terminal window, this will hopefully be fixed in the 2.3b1. | |
| What's New in Python 2.3 alpha 1? | |
| ================================= | |
| *Release date: 31-Dec-2002* | |
| Type/class unification and new-style classes | |
| -------------------------------------------- | |
| - One can now assign to __bases__ and __name__ of new-style classes. | |
| - dict() now accepts keyword arguments so that dict(one=1, two=2) | |
| is the equivalent of {"one": 1, "two": 2}. Accordingly, | |
| the existing (but undocumented) 'items' keyword argument has | |
| been eliminated. This means that dict(items=someMapping) now has | |
| a different meaning than before. | |
| - int() now returns a long object if the argument is outside the | |
| integer range, so int("4" * 1000), int(1e200) and int(1L<<1000) will | |
| all return long objects instead of raising an OverflowError. | |
| - Assignment to __class__ is disallowed if either the old or the new | |
| class is a statically allocated type object (such as defined by an | |
| extension module). This prevents anomalies like 2.__class__ = bool. | |
| - New-style object creation and deallocation have been sped up | |
| significantly; they are now faster than classic instance creation | |
| and deallocation. | |
| - The __slots__ variable can now mention "private" names, and the | |
| right thing will happen (e.g. __slots__ = ["__foo"]). | |
| - The built-ins slice() and buffer() are now callable types. The | |
| types classobj (formerly class), code, function, instance, and | |
| instancemethod (formerly instance-method), which have no built-in | |
| names but are accessible through the types module, are now also | |
| callable. The type dict-proxy is renamed to dictproxy. | |
| - Cycles going through the __class__ link of a new-style instance are | |
| now detected by the garbage collector. | |
| - Classes using __slots__ are now properly garbage collected. | |
| [SF bug 519621] | |
| - Tightened the __slots__ rules: a slot name must be a valid Python | |
| identifier. | |
| - The constructor for the module type now requires a name argument and | |
| takes an optional docstring argument. Previously, this constructor | |
| ignored its arguments. As a consequence, deriving a class from a | |
| module (not from the module type) is now illegal; previously this | |
| created an unnamed module, just like invoking the module type did. | |
| [SF bug 563060] | |
| - A new type object, 'basestring', is added. This is a common base type | |
| for 'str' and 'unicode', and can be used instead of | |
| types.StringTypes, e.g. to test whether something is "a string": | |
| isinstance(x, basestring) is True for Unicode and 8-bit strings. This | |
| is an abstract base class and cannot be instantiated directly. | |
| - Changed new-style class instantiation so that when C's __new__ | |
| method returns something that's not a C instance, its __init__ is | |
| not called. [SF bug #537450] | |
| - Fixed super() to work correctly with class methods. [SF bug #535444] | |
| - If you try to pickle an instance of a class that has __slots__ but | |
| doesn't define or override __getstate__, a TypeError is now raised. | |
| This is done by adding a bozo __getstate__ to the class that always | |
| raises TypeError. (Before, this would appear to be pickled, but the | |
| state of the slots would be lost.) | |
| Core and builtins | |
| ----------------- | |
| - Import from zipfiles is now supported. The name of a zipfile placed | |
| on sys.path causes the import statement to look for importable Python | |
| modules (with .py, pyc and .pyo extensions) and packages inside the | |
| zipfile. The zipfile import follows the specification (though not | |
| the sample implementation) of PEP 273. The semantics of __path__ are | |
| compatible with those that have been implemented in Jython since | |
| Jython 2.1. | |
| - PEP 302 has been accepted. Although it was initially developed to | |
| support zipimport, it offers a new, general import hook mechanism. | |
| Several new variables have been added to the sys module: | |
| sys.meta_path, sys.path_hooks, and sys.path_importer_cache; these | |
| make extending the import statement much more convenient than | |
| overriding the __import__ built-in function. For a description of | |
| these, see PEP 302. | |
| - A frame object's f_lineno attribute can now be written to from a | |
| trace function to change which line will execute next. A command to | |
| exploit this from pdb has been added. [SF patch #643835] | |
| - The _codecs support module for codecs.py was turned into a built-in | |
| module to assure that at least the built-in codecs are available | |
| to the Python parser for source code decoding according to PEP 263. | |
| - issubclass now supports a tuple as the second argument, just like | |
| isinstance does. ``issubclass(X, (A, B))`` is equivalent to | |
| ``issubclass(X, A) or issubclass(X, B)``. | |
| - Thanks to Armin Rigo, the last known way to provoke a system crash | |
| by cleverly arranging for a comparison function to mutate a list | |
| during a list.sort() operation has been fixed. The effect of | |
| attempting to mutate a list, or even to inspect its contents or | |
| length, while a sort is in progress, is not defined by the language. | |
| The C implementation of Python 2.3 attempts to detect mutations, | |
| and raise ValueError if one occurs, but there's no guarantee that | |
| all mutations will be caught, or that any will be caught across | |
| releases or implementations. | |
| - Unicode file name processing for Windows (PEP 277) is implemented. | |
| All platforms now have an os.path.supports_unicode_filenames attribute, | |
| which is set to True on Windows NT/2000/XP, and False elsewhere. | |
| - Codec error handling callbacks (PEP 293) are implemented. | |
| Error handling in unicode.encode or str.decode can now be customized. | |
| - A subtle change to the semantics of the built-in function intern(): | |
| interned strings are no longer immortal. You must keep a reference | |
| to the return value intern() around to get the benefit. | |
| - Use of 'None' as a variable, argument or attribute name now | |
| issues a SyntaxWarning. In the future, None may become a keyword. | |
| - SET_LINENO is gone. co_lnotab is now consulted to determine when to | |
| call the trace function. C code that accessed f_lineno should call | |
| PyCode_Addr2Line instead (f_lineno is still there, but only kept up | |
| to date when there is a trace function set). | |
| - There's a new warning category, FutureWarning. This is used to warn | |
| about a number of situations where the value or sign of an integer | |
| result will change in Python 2.4 as a result of PEP 237 (integer | |
| unification). The warnings implement stage B0 mentioned in that | |
| PEP. The warnings are about the following situations: | |
| - Octal and hex literals without 'L' prefix in the inclusive range | |
| [0x80000000..0xffffffff]; these are currently negative ints, but | |
| in Python 2.4 they will be positive longs with the same bit | |
| pattern. | |
| - Left shifts on integer values that cause the outcome to lose | |
| bits or have a different sign than the left operand. To be | |
| precise: x<<n where this currently doesn't yield the same value | |
| as long(x)<<n; in Python 2.4, the outcome will be long(x)<<n. | |
| - Conversions from ints to string that show negative values as | |
| unsigned ints in the inclusive range [0x80000000..0xffffffff]; | |
| this affects the functions hex() and oct(), and the string | |
| formatting codes %u, %o, %x, and %X. In Python 2.4, these will | |
| show signed values (e.g. hex(-1) currently returns "0xffffffff"; | |
| in Python 2.4 it will return "-0x1"). | |
| - The bits manipulated under the cover by sys.setcheckinterval() have | |
| been changed. Both the check interval and the ticker used to be | |
| per-thread values. They are now just a pair of global variables. | |
| In addition, the default check interval was boosted from 10 to 100 | |
| bytecode instructions. This may have some effect on systems that | |
| relied on the old default value. In particular, in multi-threaded | |
| applications which try to be highly responsive, response time will | |
| increase by some (perhaps imperceptible) amount. | |
| - When multiplying very large integers, a version of the so-called | |
| Karatsuba algorithm is now used. This is most effective if the | |
| inputs have roughly the same size. If they both have about N digits, | |
| Karatsuba multiplication has O(N**1.58) runtime (the exponent is | |
| log_base_2(3)) instead of the previous O(N**2). Measured results may | |
| be better or worse than that, depending on platform quirks. Besides | |
| the O() improvement in raw instruction count, the Karatsuba algorithm | |
| appears to have much better cache behavior on extremely large integers | |
| (starting in the ballpark of a million bits). Note that this is a | |
| simple implementation, and there's no intent here to compete with, | |
| e.g., GMP. It gives a very nice speedup when it applies, but a package | |
| devoted to fast large-integer arithmetic should run circles around it. | |
| - u'%c' will now raise a ValueError in case the argument is an | |
| integer outside the valid range of Unicode code point ordinals. | |
| - The tempfile module has been overhauled for enhanced security. The | |
| mktemp() function is now deprecated; new, safe replacements are | |
| mkstemp() (for files) and mkdtemp() (for directories), and the | |
| higher-level functions NamedTemporaryFile() and TemporaryFile(). | |
| Use of some global variables in this module is also deprecated; the | |
| new functions have keyword arguments to provide the same | |
| functionality. All Lib, Tools and Demo modules that used the unsafe | |
| interfaces have been updated to use the safe replacements. Thanks | |
| to Zack Weinberg! | |
| - When x is an object whose class implements __mul__ and __rmul__, | |
| 1.0*x would correctly invoke __rmul__, but 1*x would erroneously | |
| invoke __mul__. This was due to the sequence-repeat code in the int | |
| type. This has been fixed now. | |
| - Previously, "str1 in str2" required str1 to be a string of length 1. | |
| This restriction has been relaxed to allow str1 to be a string of | |
| any length. Thus "'el' in 'hello world'" returns True now. | |
| - File objects are now their own iterators. For a file f, iter(f) now | |
| returns f (unless f is closed), and f.next() is similar to | |
| f.readline() when EOF is not reached; however, f.next() uses a | |
| readahead buffer that messes up the file position, so mixing | |
| f.next() and f.readline() (or other methods) doesn't work right. | |
| Calling f.seek() drops the readahead buffer, but other operations | |
| don't. It so happens that this gives a nice additional speed boost | |
| to "for line in file:"; the xreadlines method and corresponding | |
| module are now obsolete. Thanks to Oren Tirosh! | |
| - Encoding declarations (PEP 263, phase 1) have been implemented. A | |
| comment of the form "# -*- coding: <encodingname> -*-" in the first | |
| or second line of a Python source file indicates the encoding. | |
| - list.sort() has a new implementation. While cross-platform results | |
| may vary, and in data-dependent ways, this is much faster on many | |
| kinds of partially ordered lists than the previous implementation, | |
| and reported to be just as fast on randomly ordered lists on | |
| several major platforms. This sort is also stable (if A==B and A | |
| precedes B in the list at the start, A precedes B after the sort too), | |
| although the language definition does not guarantee stability. A | |
| potential drawback is that list.sort() may require temp space of | |
| len(list)*2 bytes (``*4`` on a 64-bit machine). It's therefore possible | |
| for list.sort() to raise MemoryError now, even if a comparison function | |
| does not. See <https://bugs.python.org/issue587076> for full details. | |
| - All standard iterators now ensure that, once StopIteration has been | |
| raised, all future calls to next() on the same iterator will also | |
| raise StopIteration. There used to be various counterexamples to | |
| this behavior, which could have caused confusion or subtle program | |
| breakage, without any benefits. (Note that this is still an | |
| iterator's responsibility; the iterator framework does not enforce | |
| this.) | |
| - Ctrl+C handling on Windows has been made more consistent with | |
| other platforms. KeyboardInterrupt can now reliably be caught, | |
| and Ctrl+C at an interactive prompt no longer terminates the | |
| process under NT/2k/XP (it never did under Win9x). Ctrl+C will | |
| interrupt time.sleep() in the main thread, and any child processes | |
| created via the popen family (on win2k; we can't make win9x work | |
| reliably) are also interrupted (as generally happens on for Linux/Unix.) | |
| [SF bugs 231273, 439992 and 581232] | |
| - sys.getwindowsversion() has been added on Windows. This | |
| returns a tuple with information about the version of Windows | |
| currently running. | |
| - Slices and repetitions of buffer objects now consistently return | |
| a string. Formerly, strings would be returned most of the time, | |
| but a buffer object would be returned when the repetition count | |
| was one or when the slice range was all inclusive. | |
| - Unicode objects in sys.path are no longer ignored but treated | |
| as directory names. | |
| - Fixed string.startswith and string.endswith built-in methods | |
| so they accept negative indices. [SF bug 493951] | |
| - Fixed a bug with a continue inside a try block and a yield in the | |
| finally clause. [SF bug 567538] | |
| - Most built-in sequences now support "extended slices", i.e. slices | |
| with a third "stride" parameter. For example, "hello world"[::-1] | |
| gives "dlrow olleh". | |
| - A new warning PendingDeprecationWarning was added to provide | |
| direction on features which are in the process of being deprecated. | |
| The warning will not be printed by default. To see the pending | |
| deprecations, use -Walways::PendingDeprecationWarning:: | |
| as a command line option or warnings.filterwarnings() in code. | |
| - Deprecated features of xrange objects have been removed as | |
| promised. The start, stop, and step attributes and the tolist() | |
| method no longer exist. xrange repetition and slicing have been | |
| removed. | |
| - New built-in function enumerate(x), from PEP 279. Example: | |
| enumerate("abc") is an iterator returning (0,"a"), (1,"b"), (2,"c"). | |
| The argument can be an arbitrary iterable object. | |
| - The assert statement no longer tests __debug__ at runtime. This means | |
| that assert statements cannot be disabled by assigning a false value | |
| to __debug__. | |
| - A method zfill() was added to str and unicode, that fills a numeric | |
| string to the left with zeros. For example, | |
| "+123".zfill(6) -> "+00123". | |
| - Complex numbers supported divmod() and the // and % operators, but | |
| these make no sense. Since this was documented, they're being | |
| deprecated now. | |
| - String and unicode methods lstrip(), rstrip() and strip() now take | |
| an optional argument that specifies the characters to strip. For | |
| example, "Foo!!!?!?!?".rstrip("?!") -> "Foo". | |
| - There's a new dictionary constructor (a class method of the dict | |
| class), dict.fromkeys(iterable, value=None). It constructs a | |
| dictionary with keys taken from the iterable and all values set to a | |
| single value. It can be used for building sets and for removing | |
| duplicates from sequences. | |
| - Added a new dict method pop(key). This removes and returns the | |
| value corresponding to key. [SF patch #539949] | |
| - A new built-in type, bool, has been added, as well as built-in | |
| names for its two values, True and False. Comparisons and sundry | |
| other operations that return a truth value have been changed to | |
| return a bool instead. Read PEP 285 for an explanation of why this | |
| is backward compatible. | |
| - Fixed two bugs reported as SF #535905: under certain conditions, | |
| deallocating a deeply nested structure could cause a segfault in the | |
| garbage collector, due to interaction with the "trashcan" code; | |
| access to the current frame during destruction of a local variable | |
| could access a pointer to freed memory. | |
| - The optional object allocator ("pymalloc") has been enabled by | |
| default. The recommended practice for memory allocation and | |
| deallocation has been streamlined. A header file is included, | |
| Misc/pymemcompat.h, which can be bundled with 3rd party extensions | |
| and lets them use the same API with Python versions from 1.5.2 | |
| onwards. | |
| - PyErr_Display will provide file and line information for all exceptions | |
| that have an attribute print_file_and_line, not just SyntaxErrors. | |
| - The UTF-8 codec will now encode and decode Unicode surrogates | |
| correctly and without raising exceptions for unpaired ones. | |
| - Universal newlines (PEP 278) is implemented. Briefly, using 'U' | |
| instead of 'r' when opening a text file for reading changes the line | |
| ending convention so that any of '\r', '\r\n', and '\n' is | |
| recognized (even mixed in one file); all three are converted to | |
| '\n', the standard Python line end character. | |
| - file.xreadlines() now raises a ValueError if the file is closed: | |
| Previously, an xreadlines object was returned which would raise | |
| a ValueError when the xreadlines.next() method was called. | |
| - sys.exit() inadvertently allowed more than one argument. | |
| An exception will now be raised if more than one argument is used. | |
| - Changed evaluation order of dictionary literals to conform to the | |
| general left to right evaluation order rule. Now {f1(): f2()} will | |
| evaluate f1 first. | |
| - Fixed bug #521782: when a file was in non-blocking mode, file.read() | |
| could silently lose data or wrongly throw an unknown error. | |
| - The sq_repeat, sq_inplace_repeat, sq_concat and sq_inplace_concat | |
| slots are now always tried after trying the corresponding nb_* slots. | |
| This fixes a number of minor bugs (see bug #624807). | |
| - Fix problem with dynamic loading on 64-bit AIX (see bug #639945). | |
| Extension modules | |
| ----------------- | |
| - Added three operators to the operator module: | |
| operator.pow(a,b) which is equivalent to: a**b. | |
| operator.is_(a,b) which is equivalent to: a is b. | |
| operator.is_not(a,b) which is equivalent to: a is not b. | |
| - posix.openpty now works on all systems that have /dev/ptmx. | |
| - A module zipimport exists to support importing code from zip | |
| archives. | |
| - The new datetime module supplies classes for manipulating dates and | |
| times. The basic design came from the Zope "fishbowl process", and | |
| favors practical commercial applications over calendar esoterica. See | |
| http://www.zope.org/Members/fdrake/DateTimeWiki/FrontPage | |
| - _tkinter now returns Tcl objects, instead of strings. Objects which | |
| have Python equivalents are converted to Python objects, other objects | |
| are wrapped. This can be configured through the wantobjects method, | |
| or Tkinter.wantobjects. | |
| - The PyBSDDB wrapper around the Sleepycat Berkeley DB library has | |
| been added as the package bsddb. The traditional bsddb module is | |
| still available in source code, but not built automatically anymore, | |
| and is now named bsddb185. This supports Berkeley DB versions from | |
| 3.0 to 4.1. For help converting your databases from the old module (which | |
| probably used an obsolete version of Berkeley DB) to the new module, see | |
| the db2pickle.py and pickle2db.py scripts described in the Tools/Demos | |
| section above. | |
| - unicodedata was updated to Unicode 3.2. It supports normalization | |
| and names for Hangul syllables and CJK unified ideographs. | |
| - resource.getrlimit() now returns longs instead of ints. | |
| - readline now dynamically adjusts its input/output stream if | |
| sys.stdin/stdout changes. | |
| - The _tkinter module (and hence Tkinter) has dropped support for | |
| Tcl/Tk 8.0 and 8.1. Only Tcl/Tk versions 8.2, 8.3 and 8.4 are | |
| supported. | |
| - cPickle.BadPickleGet is now a class. | |
| - The time stamps in os.stat_result are floating point numbers | |
| after stat_float_times has been called. | |
| - If the size passed to mmap.mmap() is larger than the length of the | |
| file on non-Windows platforms, a ValueError is raised. [SF bug 585792] | |
| - The xreadlines module is slated for obsolescence. | |
| - The strptime function in the time module is now always available (a | |
| Python implementation is used when the C library doesn't define it). | |
| - The 'new' module is no longer an extension, but a Python module that | |
| only exists for backwards compatibility. Its contents are no longer | |
| functions but callable type objects. | |
| - The bsddb.*open functions can now take 'None' as a filename. | |
| This will create a temporary in-memory bsddb that won't be | |
| written to disk. | |
| - posix.getloadavg, posix.lchown, posix.killpg, posix.mknod, and | |
| posix.getpgid have been added where available. | |
| - The locale module now exposes the C library's gettext interface. It | |
| also has a new function getpreferredencoding. | |
| - A security hole ("double free") was found in zlib-1.1.3, a popular | |
| third party compression library used by some Python modules. The | |
| hole was quickly plugged in zlib-1.1.4, and the Windows build of | |
| Python now ships with zlib-1.1.4. | |
| - pwd, grp, and resource return enhanced tuples now, with symbolic | |
| field names. | |
| - array.array is now a type object. A new format character | |
| 'u' indicates Py_UNICODE arrays. For those, .tounicode and | |
| .fromunicode methods are available. Arrays now support __iadd__ | |
| and __imul__. | |
| - dl now builds on every system that has dlfcn.h. Failure in case | |
| of sizeof(int)!=sizeof(long)!=sizeof(void*) is delayed until dl.open | |
| is called. | |
| - The sys module acquired a new attribute, api_version, which evaluates | |
| to the value of the PYTHON_API_VERSION macro with which the | |
| interpreter was compiled. | |
| - Fixed bug #470582: sre module would return a tuple (None, 'a', 'ab') | |
| when applying the regular expression '^((a)c)?(ab)$' on 'ab'. It now | |
| returns (None, None, 'ab'), as expected. Also fixed handling of | |
| lastindex/lastgroup match attributes in similar cases. For example, | |
| when running the expression r'(a)(b)?b' over 'ab', lastindex must be | |
| 1, not 2. | |
| - Fixed bug #581080: sre scanner was not checking the buffer limit | |
| before increasing the current pointer. This was creating an infinite | |
| loop in the search function, once the pointer exceeded the buffer | |
| limit. | |
| - The os.fdopen function now enforces a file mode starting with the | |
| letter 'r', 'w' or 'a', otherwise a ValueError is raised. This fixes | |
| bug #623464. | |
| - The linuxaudiodev module is now deprecated; it is being replaced by | |
| ossaudiodev. The interface has been extended to cover a lot more of | |
| OSS (see www.opensound.com), including most DSP ioctls and the | |
| OSS mixer API. Documentation forthcoming in 2.3a2. | |
| Library | |
| ------- | |
| - imaplib.py now supports SSL (Tino Lange and Piers Lauder). | |
| - Freeze's modulefinder.py has been moved to the standard library; | |
| slightly improved so it will issue less false missing submodule | |
| reports (see sf path #643711 for details). Documentation will follow | |
| with Python 2.3a2. | |
| - os.path exposes getctime. | |
| - unittest.py now has two additional methods called assertAlmostEqual() | |
| and failIfAlmostEqual(). They implement an approximate comparison | |
| by rounding the difference between the two arguments and comparing | |
| the result to zero. Approximate comparison is essential for | |
| unit tests of floating point results. | |
| - calendar.py now depends on the new datetime module rather than | |
| the time module. As a result, the range of allowable dates | |
| has been increased. | |
| - pdb has a new 'j(ump)' command to select the next line to be | |
| executed. | |
| - The distutils created windows installers now can run a | |
| postinstallation script. | |
| - doctest.testmod can now be called without argument, which means to | |
| test the current module. | |
| - When canceling a server that implemented threading with a keyboard | |
| interrupt, the server would shut down but not terminate (waiting on | |
| client threads). A new member variable, daemon_threads, was added to | |
| the ThreadingMixIn class in SocketServer.py to make it explicit that | |
| this behavior needs to be controlled. | |
| - A new module, optparse, provides a fancy alternative to getopt for | |
| command line parsing. It is a slightly modified version of Greg | |
| Ward's Optik package. | |
| - UserDict.py now defines a DictMixin class which defines all dictionary | |
| methods for classes that already have a minimum mapping interface. | |
| This greatly simplifies writing classes that need to be substitutable | |
| for dictionaries (such as the shelve module). | |
| - shelve.py now subclasses from UserDict.DictMixin. Now shelve supports | |
| all dictionary methods. This eases the transition to persistent | |
| storage for scripts originally written with dictionaries in mind. | |
| - shelve.open and the various classes in shelve.py now accept an optional | |
| binary flag, which defaults to False. If True, the values stored in the | |
| shelf are binary pickles. | |
| - A new package, logging, implements the logging API defined by PEP | |
| 282. The code is written by Vinay Sajip. | |
| - StreamReader, StreamReaderWriter and StreamRecoder in the codecs | |
| modules are iterators now. | |
| - gzip.py now handles files exceeding 2GB. Files over 4GB also work | |
| now (provided the OS supports it, and Python is configured with large | |
| file support), but in that case the underlying gzip file format can | |
| record only the least-significant 32 bits of the file size, so that | |
| some tools working with gzipped files may report an incorrect file | |
| size. | |
| - xml.sax.saxutils.unescape has been added, to replace entity references | |
| with their entity value. | |
| - Queue.Queue.{put,get} now support an optional timeout argument. | |
| - Various features of Tk 8.4 are exposed in Tkinter.py. The multiple | |
| option of tkFileDialog is exposed as function askopenfile{,name}s. | |
| - Various configure methods of Tkinter have been stream-lined, so that | |
| tag_configure, image_configure, window_configure now return a | |
| dictionary when invoked with no argument. | |
| - Importing the readline module now no longer has the side effect of | |
| calling setlocale(LC_CTYPE, ""). The initial "C" locale, or | |
| whatever locale is explicitly set by the user, is preserved. If you | |
| want repr() of 8-bit strings in your preferred encoding to preserve | |
| all printable characters of that encoding, you have to add the | |
| following code to your $PYTHONSTARTUP file or to your application's | |
| main(): | |
| import locale | |
| locale.setlocale(locale.LC_CTYPE, "") | |
| - shutil.move was added. shutil.copytree now reports errors as an | |
| exception at the end, instead of printing error messages. | |
| - Encoding name normalization was generalized to not only | |
| replace hyphens with underscores, but also all other non-alphanumeric | |
| characters (with the exception of the dot which is used for Python | |
| package names during lookup). The aliases.py mapping was updated | |
| to the new standard. | |
| - mimetypes has two new functions: guess_all_extensions() which | |
| returns a list of all known extensions for a mime type, and | |
| add_type() which adds one mapping between a mime type and | |
| an extension to the database. | |
| - New module: sets, defines the class Set that implements a mutable | |
| set type using the keys of a dict to represent the set. There's | |
| also a class ImmutableSet which is useful when you need sets of sets | |
| or when you need to use sets as dict keys, and a class BaseSet which | |
| is the base class of the two. | |
| - Added random.sample(population,k) for random sampling without replacement. | |
| Returns a k length list of unique elements chosen from the population. | |
| - random.randrange(-sys.maxint-1, sys.maxint) no longer raises | |
| OverflowError. That is, it now accepts any combination of 'start' | |
| and 'stop' arguments so long as each is in the range of Python's | |
| bounded integers. | |
| - Thanks to Raymond Hettinger, random.random() now uses a new core | |
| generator. The Mersenne Twister algorithm is implemented in C, | |
| threadsafe, faster than the previous generator, has an astronomically | |
| large period (2**19937-1), creates random floats to full 53-bit | |
| precision, and may be the most widely tested random number generator | |
| in existence. | |
| The random.jumpahead(n) method has different semantics for the new | |
| generator. Instead of jumping n steps ahead, it uses n and the | |
| existing state to create a new state. This means that jumpahead() | |
| continues to support multi-threaded code needing generators of | |
| non-overlapping sequences. However, it will break code which relies | |
| on jumpahead moving a specific number of steps forward. | |
| The attributes random.whseed and random.__whseed have no meaning for | |
| the new generator. Code using these attributes should switch to a | |
| new class, random.WichmannHill which is provided for backward | |
| compatibility and to make an alternate generator available. | |
| - New "algorithms" module: heapq, implements a heap queue. Thanks to | |
| Kevin O'Connor for the code and François Pinard for an entertaining | |
| write-up explaining the theory and practical uses of heaps. | |
| - New encoding for the Palm OS character set: palmos. | |
| - binascii.crc32() and the zipfile module had problems on some 64-bit | |
| platforms. These have been fixed. On a platform with 8-byte C longs, | |
| crc32() now returns a signed-extended 4-byte result, so that its value | |
| as a Python int is equal to the value computed a 32-bit platform. | |
| - xml.dom.minidom.toxml and toprettyxml now take an optional encoding | |
| argument. | |
| - Some fixes in the copy module: when an object is copied through its | |
| __reduce__ method, there was no check for a __setstate__ method on | |
| the result [SF patch 565085]; deepcopy should treat instances of | |
| custom metaclasses the same way it treats instances of type 'type' | |
| [SF patch 560794]. | |
| - Sockets now support timeout mode. After s.settimeout(T), where T is | |
| a float expressing seconds, subsequent operations raise an exception | |
| if they cannot be completed within T seconds. To disable timeout | |
| mode, use s.settimeout(None). There's also a module function, | |
| socket.setdefaulttimeout(T), which sets the default for all sockets | |
| created henceforth. | |
| - getopt.gnu_getopt was added. This supports GNU-style option | |
| processing, where options can be mixed with non-option arguments. | |
| - Stop using strings for exceptions. String objects used for | |
| exceptions are now classes deriving from Exception. The objects | |
| changed were: Tkinter.TclError, bdb.BdbQuit, macpath.norm_error, | |
| tabnanny.NannyNag, and xdrlib.Error. | |
| - Constants BOM_UTF8, BOM_UTF16, BOM_UTF16_LE, BOM_UTF16_BE, | |
| BOM_UTF32, BOM_UTF32_LE and BOM_UTF32_BE that represent the Byte | |
| Order Mark in UTF-8, UTF-16 and UTF-32 encodings for little and | |
| big endian systems were added to the codecs module. The old names | |
| BOM32_* and BOM64_* were off by a factor of 2. | |
| - Added conversion functions math.degrees() and math.radians(). | |
| - math.log() now takes an optional argument: math.log(x[, base]). | |
| - ftplib.retrlines() now tests for callback is None rather than testing | |
| for False. Was causing an error when given a callback object which | |
| was callable but also returned len() as zero. The change may | |
| create new breakage if the caller relied on the undocumented behavior | |
| and called with callback set to [] or some other False value not | |
| identical to None. | |
| - random.gauss() uses a piece of hidden state used by nothing else, | |
| and the .seed() and .whseed() methods failed to reset it. In other | |
| words, setting the seed didn't completely determine the sequence of | |
| results produced by random.gauss(). It does now. Programs repeatedly | |
| mixing calls to a seed method with calls to gauss() may see different | |
| results now. | |
| - The pickle.Pickler class grew a clear_memo() method to mimic that | |
| provided by cPickle.Pickler. | |
| - difflib's SequenceMatcher class now does a dynamic analysis of | |
| which elements are so frequent as to constitute noise. For | |
| comparing files as sequences of lines, this generally works better | |
| than the IS_LINE_JUNK function, and function ndiff's linejunk | |
| argument defaults to None now as a result. A happy benefit is | |
| that SequenceMatcher may run much faster now when applied | |
| to large files with many duplicate lines (for example, C program | |
| text with lots of repeated "}" and "return NULL;" lines). | |
| - New Text.dump() method in Tkinter module. | |
| - New distutils commands for building packagers were added to | |
| support pkgtool on Solaris and swinstall on HP-UX. | |
| - distutils now has a new abstract binary packager base class | |
| command/bdist_packager, which simplifies writing packagers. | |
| This will hopefully provide the missing bits to encourage | |
| people to submit more packagers, e.g. for Debian, FreeBSD | |
| and other systems. | |
| - The UTF-16, -LE and -BE stream readers now raise a | |
| NotImplementedError for all calls to .readline(). Previously, they | |
| used to just produce garbage or fail with an encoding error -- | |
| UTF-16 is a 2-byte encoding and the C lib's line reading APIs don't | |
| work well with these. | |
| - compileall now supports quiet operation. | |
| - The BaseHTTPServer now implements optional HTTP/1.1 persistent | |
| connections. | |
| - socket module: the SSL support was broken out of the main | |
| _socket module C helper and placed into a new _ssl helper | |
| which now gets imported by socket.py if available and working. | |
| - encodings package: added aliases for all supported IANA character | |
| sets | |
| - ftplib: to safeguard the user's privacy, anonymous login will use | |
| "anonymous@" as default password, rather than the real user and host | |
| name. | |
| - webbrowser: tightened up the command passed to os.system() so that | |
| arbitrary shell code can't be executed because a bogus URL was | |
| passed in. | |
| - gettext.translation has an optional fallback argument, and | |
| gettext.find an optional all argument. Translations will now fallback | |
| on a per-message basis. The module supports plural forms, by means | |
| of gettext.[d]ngettext and Translation.[u]ngettext. | |
| - distutils bdist commands now offer a --skip-build option. | |
| - warnings.warn now accepts a Warning instance as first argument. | |
| - The xml.sax.expatreader.ExpatParser class will no longer create | |
| circular references by using itself as the locator that gets passed | |
| to the content handler implementation. [SF bug #535474] | |
| - The email.Parser.Parser class now properly parses strings regardless | |
| of their line endings, which can be any of \r, \n, or \r\n (CR, LF, | |
| or CRLF). Also, the Header class's constructor default arguments | |
| has changed slightly so that an explicit maxlinelen value is always | |
| honored, and so unicode conversion error handling can be specified. | |
| - distutils' build_ext command now links C++ extensions with the C++ | |
| compiler available in the Makefile or CXX environment variable, if | |
| running under \*nix. | |
| - New module bz2: provides a comprehensive interface for the bz2 compression | |
| library. It implements a complete file interface, one-shot (de)compression | |
| functions, and types for sequential (de)compression. | |
| - New pdb command 'pp' which is like 'p' except that it pretty-prints | |
| the value of its expression argument. | |
| - Now bdist_rpm distutils command understands a verify_script option in | |
| the config file, including the contents of the referred filename in | |
| the "%verifyscript" section of the rpm spec file. | |
| - Fixed bug #495695: webbrowser module would run graphic browsers in a | |
| unix environment even if DISPLAY was not set. Also, support for | |
| skipstone browser was included. | |
| - Fixed bug #636769: rexec would run unallowed code if subclasses of | |
| strings were used as parameters for certain functions. | |
| Tools/Demos | |
| ----------- | |
| - pygettext.py now supports globbing on Windows, and accepts module | |
| names in addition to accepting file names. | |
| - The SGI demos (Demo/sgi) have been removed. Nobody thought they | |
| were interesting any more. (The SGI library modules and extensions | |
| are still there; it is believed that at least some of these are | |
| still used and useful.) | |
| - IDLE supports the new encoding declarations (PEP 263); it can also | |
| deal with legacy 8-bit files if they use the locale's encoding. It | |
| allows non-ASCII strings in the interactive shell and executes them | |
| in the locale's encoding. | |
| - freeze.py now produces binaries which can import shared modules, | |
| unlike before when this failed due to missing symbol exports in | |
| the generated binary. | |
| Build | |
| ----- | |
| - On Unix, IDLE is now installed automatically. | |
| - The fpectl module is not built by default; it's dangerous or useless | |
| except in the hands of experts. | |
| - The public Python C API will generally be declared using PyAPI_FUNC | |
| and PyAPI_DATA macros, while Python extension module init functions | |
| will be declared with PyMODINIT_FUNC. DL_EXPORT/DL_IMPORT macros | |
| are deprecated. | |
| - A bug was fixed that could cause COUNT_ALLOCS builds to segfault, or | |
| get into infinite loops, when a new-style class got garbage-collected. | |
| Unfortunately, to avoid this, the way COUNT_ALLOCS works requires | |
| that new-style classes be immortal in COUNT_ALLOCS builds. Note that | |
| COUNT_ALLOCS is not enabled by default, in either release or debug | |
| builds, and that new-style classes are immortal only in COUNT_ALLOCS | |
| builds. | |
| - Compiling out the cyclic garbage collector is no longer an option. | |
| The old symbol WITH_CYCLE_GC is now ignored, and Python.h arranges | |
| that it's always defined (for the benefit of any extension modules | |
| that may be conditionalizing on it). A bonus is that any extension | |
| type participating in cyclic gc can choose to participate in the | |
| Py_TRASHCAN mechanism now too; in the absence of cyclic gc, this used | |
| to require editing the core to teach the trashcan mechanism about the | |
| new type. | |
| - According to Annex F of the current C standard, | |
| The Standard C macro HUGE_VAL and its float and long double analogs, | |
| HUGE_VALF and HUGE_VALL, expand to expressions whose values are | |
| positive infinities. | |
| Python only uses the double HUGE_VAL, and only to #define its own symbol | |
| Py_HUGE_VAL. Some platforms have incorrect definitions for HUGE_VAL. | |
| pyport.h used to try to worm around that, but the workarounds triggered | |
| other bugs on other platforms, so we gave up. If your platform defines | |
| HUGE_VAL incorrectly, you'll need to #define Py_HUGE_VAL to something | |
| that works on your platform. The only instance of this I'm sure about | |
| is on an unknown subset of Cray systems, described here: | |
| http://www.cray.com/swpubs/manuals/SN-2194_2.0/html-SN-2194_2.0/x3138.htm | |
| Presumably 2.3a1 breaks such systems. If anyone uses such a system, help! | |
| - The configure option --without-doc-strings can be used to remove the | |
| doc strings from the built-in functions and modules; this reduces the | |
| size of the executable. | |
| - The universal newlines option (PEP 278) is on by default. On Unix | |
| it can be disabled by passing --without-universal-newlines to the | |
| configure script. On other platforms, remove | |
| WITH_UNIVERSAL_NEWLINES from pyconfig.h. | |
| - On Unix, a shared libpython2.3.so can be created with --enable-shared. | |
| - All uses of the CACHE_HASH, INTERN_STRINGS, and DONT_SHARE_SHORT_STRINGS | |
| preprocessor symbols were eliminated. The internal decisions they | |
| controlled stopped being experimental long ago. | |
| - The tools used to build the documentation now work under Cygwin as | |
| well as Unix. | |
| - The bsddb and dbm module builds have been changed to try and avoid version | |
| skew problems and disable linkage with Berkeley DB 1.85 unless the | |
| installer knows what s/he's doing. See the section on building these | |
| modules in the README file for details. | |
| C API | |
| ----- | |
| - PyNumber_Check() now returns true for string and unicode objects. | |
| This is a result of these types having a partially defined | |
| tp_as_number slot. (This is not a feature, but an indication that | |
| PyNumber_Check() is not very useful to determine numeric behavior. | |
| It may be deprecated.) | |
| - The string object's layout has changed: the pointer member | |
| ob_sinterned has been replaced by an int member ob_sstate. On some | |
| platforms (e.g. most 64-bit systems) this may change the offset of | |
| the ob_sval member, so as a precaution the API_VERSION has been | |
| incremented. The apparently unused feature of "indirect interned | |
| strings", supported by the ob_sinterned member, is gone. Interned | |
| strings are now usually mortal; there is a new API, | |
| PyString_InternImmortal() that creates immortal interned strings. | |
| (The ob_sstate member can only take three values; however, while | |
| making it a char saves a few bytes per string object on average, in | |
| it also slowed things down a bit because ob_sval was no longer | |
| aligned.) | |
| - The Py_InitModule*() functions now accept NULL for the 'methods' | |
| argument. Modules without global functions are becoming more common | |
| now that factories can be types rather than functions. | |
| - New C API PyUnicode_FromOrdinal() which exposes unichr() at C | |
| level. | |
| - New functions PyErr_SetExcFromWindowsErr() and | |
| PyErr_SetExcFromWindowsErrWithFilename(). Similar to | |
| PyErr_SetFromWindowsErrWithFilename() and | |
| PyErr_SetFromWindowsErr(), but they allow specifying | |
| the exception type to raise. Available on Windows. | |
| - Py_FatalError() is now declared as taking a const char* argument. It | |
| was previously declared without const. This should not affect working | |
| code. | |
| - Added new macro PySequence_ITEM(o, i) that directly calls | |
| sq_item without rechecking that o is a sequence and without | |
| adjusting for negative indices. | |
| - PyRange_New() now raises ValueError if the fourth argument is not 1. | |
| This is part of the removal of deprecated features of the xrange | |
| object. | |
| - PyNumber_Coerce() and PyNumber_CoerceEx() now also invoke the type's | |
| coercion if both arguments have the same type but this type has the | |
| CHECKTYPES flag set. This is to better support proxies. | |
| - The type of tp_free has been changed from "``void (*)(PyObject *)``" to | |
| "``void (*)(void *)``". | |
| - PyObject_Del, PyObject_GC_Del are now functions instead of macros. | |
| - A type can now inherit its metatype from its base type. Previously, | |
| when PyType_Ready() was called, if ob_type was found to be NULL, it | |
| was always set to &PyType_Type; now it is set to base->ob_type, | |
| where base is tp_base, defaulting to &PyObject_Type. | |
| - PyType_Ready() accidentally did not inherit tp_is_gc; now it does. | |
| - The PyCore_* family of APIs have been removed. | |
| - The "u#" parser marker will now pass through Unicode objects as-is | |
| without going through the buffer API. | |
| - The enumerators of cmp_op have been renamed to use the prefix ``PyCmp_``. | |
| - An old #define of ANY as void has been removed from pyport.h. This | |
| hasn't been used since Python's pre-ANSI days, and the #define has | |
| been marked as obsolete since then. SF bug 495548 says it created | |
| conflicts with other packages, so keeping it around wasn't harmless. | |
| - Because Python's magic number scheme broke on January 1st, we decided | |
| to stop Python development. Thanks for all the fish! | |
| - Some of us don't like fish, so we changed Python's magic number | |
| scheme to a new one. See Python/import.c for details. | |
| New platforms | |
| ------------- | |
| - OpenVMS is now supported. | |
| - AtheOS is now supported. | |
| - the EMX runtime environment on OS/2 is now supported. | |
| - GNU/Hurd is now supported. | |
| Tests | |
| ----- | |
| - The regrtest.py script's -u option now provides a way to say "allow | |
| all resources except this one." For example, to allow everything | |
| except bsddb, give the option '-uall,-bsddb'. | |
| Windows | |
| ------- | |
| - The Windows distribution now ships with version 4.0.14 of the | |
| Sleepycat Berkeley database library. This should be a huge | |
| improvement over the previous Berkeley DB 1.85, which had many | |
| bugs. | |
| XXX What are the licensing issues here? | |
| XXX If a user has a database created with a previous version of | |
| XXX Python, what must they do to convert it? | |
| XXX I'm still not sure how to link this thing (see PCbuild/readme.txt). | |
| XXX The version # is likely to change before 2.3a1. | |
| - The Windows distribution now ships with a Secure Sockets Library (SLL) | |
| module (_ssl.pyd) | |
| - The Windows distribution now ships with Tcl/Tk version 8.4.1 (it | |
| previously shipped with Tcl/Tk 8.3.2). | |
| - When Python is built under a Microsoft compiler, sys.version now | |
| includes the compiler version number (_MSC_VER). For example, under | |
| MSVC 6, sys.version contains the substring "MSC v.1200 ". 1200 is | |
| the value of _MSC_VER under MSVC 6. | |
| - Sometimes the uninstall executable (UNWISE.EXE) vanishes. One cause | |
| of that has been fixed in the installer (disabled Wise's "delete in- | |
| use files" uninstall option). | |
| - Fixed a bug in urllib's proxy handling in Windows. [SF bug #503031] | |
| - The installer now installs Start menu shortcuts under (the local | |
| equivalent of) "All Users" when doing an Admin install. | |
| - file.truncate([newsize]) now works on Windows for all newsize values. | |
| It used to fail if newsize didn't fit in 32 bits, reflecting a | |
| limitation of MS _chsize (which is no longer used). | |
| - os.waitpid() is now implemented for Windows, and can be used to block | |
| until a specified process exits. This is similar to, but not exactly | |
| the same as, os.waitpid() on POSIX systems. If you're waiting for | |
| a specific process whose pid was obtained from one of the spawn() | |
| functions, the same Python os.waitpid() code works across platforms. | |
| See the docs for details. The docs were changed to clarify that | |
| spawn functions return, and waitpid requires, a process handle on | |
| Windows (not the same thing as a Windows process id). | |
| - New tempfile.TemporaryFile implementation for Windows: this doesn't | |
| need a TemporaryFileWrapper wrapper anymore, and should be immune | |
| to a nasty problem: before 2.3, if you got a temp file on Windows, it | |
| got wrapped in an object whose close() method first closed the | |
| underlying file, then deleted the file. This usually worked fine. | |
| However, the spawn family of functions on Windows create (at a low C | |
| level) the same set of open files in the spawned process Q as were | |
| open in the spawning process P. If a temp file f was among them, then | |
| doing f.close() in P first closed P's C-level file handle on f, but Q's | |
| C-level file handle on f remained open, so the attempt in P to delete f | |
| blew up with a "Permission denied" error (Windows doesn't allow | |
| deleting open files). This was surprising, subtle, and difficult to | |
| work around. | |
| - The os module now exports all the symbolic constants usable with the | |
| low-level os.open() on Windows: the new constants in 2.3 are | |
| O_NOINHERIT, O_SHORT_LIVED, O_TEMPORARY, O_RANDOM and O_SEQUENTIAL. | |
| The others were also available in 2.2: O_APPEND, O_BINARY, O_CREAT, | |
| O_EXCL, O_RDONLY, O_RDWR, O_TEXT, O_TRUNC and O_WRONLY. Contrary | |
| to Microsoft docs, O_SHORT_LIVED does not seem to imply O_TEMPORARY | |
| (so specify both if you want both; note that neither is useful unless | |
| specified with O_CREAT too). | |
| Mac | |
| ---- | |
| - Mac/Relnotes is gone, the release notes are now here. | |
| - Python (the OSX-only, unix-based version, not the OS9-compatible CFM | |
| version) now fully supports unicode strings as arguments to various file | |
| system calls, eg. open(), file(), os.stat() and os.listdir(). | |
| - The current naming convention for Python on the Macintosh is that MacPython | |
| refers to the unix-based OSX-only version, and MacPython-OS9 refers to the | |
| CFM-based version that runs on both OS9 and OSX. | |
| - All MacPython-OS9 functionality is now available in an OSX unix build, | |
| including the Carbon modules, the IDE, OSA support, etc. A lot of this | |
| will only work correctly in a framework build, though, because you cannot | |
| talk to the window manager unless your application is run from a .app | |
| bundle. There is a command line tool "pythonw" that runs your script | |
| with an interpreter living in such a .app bundle, this interpreter should | |
| be used to run any Python script using the window manager (including | |
| Tkinter or wxPython scripts). | |
| - Most of Mac/Lib has moved to Lib/plat-mac, which is again used both in | |
| MacPython-OSX and MacPython-OS9. The only modules remaining in Mac/Lib | |
| are specifically for MacPython-OS9 (CFM support, preference resources, etc). | |
| - A new utility PythonLauncher will start a Python interpreter when a .py or | |
| .pyw script is double-clicked in the Finder. By default .py scripts are | |
| run with a normal Python interpreter in a Terminal window and .pyw | |
| files are run with a window-aware pythonw interpreter without a Terminal | |
| window, but all this can be customized. | |
| - MacPython-OS9 is now Carbon-only, so it runs on Mac OS 9 or Mac OS X and | |
| possibly on Mac OS 8.6 with the right CarbonLib installed, but not on earlier | |
| releases. | |
| - Many tools such as BuildApplet.py and gensuitemodule.py now support a command | |
| line interface too. | |
| - All the Carbon classes are now PEP253 compliant, meaning that you can | |
| subclass them from Python. Most of the attributes have gone, you should | |
| now use the accessor function call API, which is also what Apple's | |
| documentation uses. Some attributes such as grafport.visRgn are still | |
| available for convenience. | |
| - New Carbon modules File (implementing the APIs in Files.h and Aliases.h) | |
| and Folder (APIs from Folders.h). The old macfs built-in module is | |
| gone, and replaced by a Python wrapper around the new modules. | |
| - Pathname handling should now be fully consistent: MacPython-OSX always uses | |
| unix pathnames and MacPython-OS9 always uses colon-separated Mac pathnames | |
| (also when running on Mac OS X). | |
| - New Carbon modules Help and AH give access to the Carbon Help Manager. | |
| There are hooks in the IDE to allow accessing the Python documentation | |
| (and Apple's Carbon and Cocoa documentation) through the Help Viewer. | |
| See Mac/OSX/README for converting the Python documentation to a | |
| Help Viewer compatible form and installing it. | |
| - OSA support has been redesigned and the generated Python classes now | |
| mirror the inheritance defined by the underlying OSA classes. | |
| - MacPython no longer maps both \r and \n to \n on input for any text file. | |
| This feature has been replaced by universal newline support (PEP278). | |
| - The default encoding for Python sourcefiles in MacPython-OS9 is no longer | |
| mac-roman (or whatever your local Mac encoding was) but "ascii", like on | |
| other platforms. If you really need sourcefiles with Mac characters in them | |
| you can change this in site.py. | |
| What's New in Python 2.2 final? | |
| =============================== | |
| *Release date: 21-Dec-2001* | |
| Type/class unification and new-style classes | |
| -------------------------------------------- | |
| - pickle.py, cPickle: allow pickling instances of new-style classes | |
| with a custom metaclass. | |
| Core and builtins | |
| ----------------- | |
| - weakref proxy object: when comparing, unwrap both arguments if both | |
| are proxies. | |
| Extension modules | |
| ----------------- | |
| - binascii.b2a_base64(): fix a potential buffer overrun when encoding | |
| very short strings. | |
| - cPickle: the obscure "fast" mode was suspected of causing stack | |
| overflows on the Mac. Hopefully fixed this by setting the recursion | |
| limit much smaller. If the limit is too low (it only affects | |
| performance), you can change it by defining PY_CPICKLE_FAST_LIMIT | |
| when compiling cPickle.c (or in pyconfig.h). | |
| Library | |
| ------- | |
| - dumbdbm.py: fixed a dumb old bug (the file didn't get synched at | |
| close or delete time). | |
| - rfc822.py: fixed a bug where the address '<>' was converted to None | |
| instead of an empty string (also fixes the email.Utils module). | |
| - xmlrpclib.py: version 1.0.0; uses precision for doubles. | |
| - test suite: the pickle and cPickle tests were not executing any code | |
| when run from the standard regression test. | |
| Tools/Demos | |
| ----------- | |
| Build | |
| ----- | |
| C API | |
| ----- | |
| New platforms | |
| ------------- | |
| Tests | |
| ----- | |
| Windows | |
| ------- | |
| - distutils package: fixed broken Windows installers (bdist_wininst). | |
| - tempfile.py: prevent mysterious warnings when TemporaryFileWrapper | |
| instances are deleted at process exit time. | |
| - socket.py: prevent mysterious warnings when socket instances are | |
| deleted at process exit time. | |
| - posixmodule.c: fix a Windows crash with stat() of a filename ending | |
| in backslash. | |
| Mac | |
| ---- | |
| - The Carbon toolbox modules have been upgraded to Universal Headers | |
| 3.4, and experimental CoreGraphics and CarbonEvents modules have | |
| been added. All only for framework-enabled MacOSX. | |
| What's New in Python 2.2c1? | |
| =========================== | |
| *Release date: 14-Dec-2001* | |
| Type/class unification and new-style classes | |
| -------------------------------------------- | |
| - Guido's tutorial introduction to the new type/class features has | |
| been extensively updated. See | |
| http://www.python.org/2.2/descrintro.html | |
| That remains the primary documentation in this area. | |
| - Fixed a leak: instance variables declared with __slots__ were never | |
| deleted! | |
| - The "delete attribute" method of descriptor objects is called | |
| __delete__, not __del__. In previous releases, it was mistakenly | |
| called __del__, which created an unfortunate overloading condition | |
| with finalizers. (The "get attribute" and "set attribute" methods | |
| are still called __get__ and __set__, respectively.) | |
| - Some subtle issues with the super built-in were fixed: | |
| (a) When super itself is subclassed, its __get__ method would still | |
| return an instance of the base class (i.e., of super). | |
| (b) super(C, C()).__class__ would return C rather than super. This | |
| is confusing. To fix this, I decided to change the semantics of | |
| super so that it only applies to code attributes, not to data | |
| attributes. After all, overriding data attributes is not | |
| supported anyway. | |
| (c) The __get__ method didn't check whether the argument was an | |
| instance of the type used in creation of the super instance. | |
| - Previously, hash() of an instance of a subclass of a mutable type | |
| (list or dictionary) would return some value, rather than raising | |
| TypeError. This has been fixed. Also, directly calling | |
| dict.__hash__ and list.__hash__ now raises the same TypeError | |
| (previously, these were the same as object.__hash__). | |
| - New-style objects now support deleting their __dict__. This is for | |
| all intents and purposes equivalent to assigning a brand new empty | |
| dictionary, but saves space if the object is not used further. | |
| Core and builtins | |
| ----------------- | |
| - -Qnew now works as documented in PEP 238: when -Qnew is passed on | |
| the command line, all occurrences of "/" use true division instead | |
| of classic division. See the PEP for details. Note that "all" | |
| means all instances in library and 3rd-party modules, as well as in | |
| your own code. As the PEP says, -Qnew is intended for use only in | |
| educational environments with control over the libraries in use. | |
| Note that test_coercion.py in the standard Python test suite fails | |
| under -Qnew; this is expected, and won't be repaired until true | |
| division becomes the default (in the meantime, test_coercion is | |
| testing the current rules). | |
| - complex() now only allows the first argument to be a string | |
| argument, and raises TypeError if either the second arg is a string | |
| or if the second arg is specified when the first is a string. | |
| Extension modules | |
| ----------------- | |
| - gc.get_referents was renamed to gc.get_referrers. | |
| Library | |
| ------- | |
| - Functions in the os.spawn() family now release the global interpreter | |
| lock around calling the platform spawn. They should always have done | |
| this, but did not before 2.2c1. Multithreaded programs calling | |
| an os.spawn function with P_WAIT will no longer block all Python threads | |
| until the spawned program completes. It's possible that some programs | |
| relies on blocking, although more likely by accident than by design. | |
| - webbrowser defaults to netscape.exe on OS/2 now. | |
| - Tix.ResizeHandle exposes detach_widget, hide, and show. | |
| - The charset alias windows_1252 has been added. | |
| - types.StringTypes is a tuple containing the defined string types; | |
| usually this will be (str, unicode), but if Python was compiled | |
| without Unicode support it will be just (str,). | |
| - The pulldom and minidom modules were synchronized to PyXML. | |
| Tools/Demos | |
| ----------- | |
| - A new script called Tools/scripts/google.py was added, which fires | |
| off a search on Google. | |
| Build | |
| ----- | |
| - Note that release builds of Python should arrange to define the | |
| preprocessor symbol NDEBUG on the command line (or equivalent). | |
| In the 2.2 pre-release series we tried to define this by magic in | |
| Python.h instead, but it proved to cause problems for extension | |
| authors. The Unix, Windows and Mac builds now all define NDEBUG in | |
| release builds via cmdline (or equivalent) instead. Ports to | |
| other platforms should do likewise. | |
| - It is no longer necessary to use --with-suffix when building on a | |
| case-insensitive file system (such as Mac OS X HFS+). In the build | |
| directory an extension is used, but not in the installed python. | |
| C API | |
| ----- | |
| - New function PyDict_MergeFromSeq2() exposes the built-in dict | |
| constructor's logic for updating a dictionary from an iterable object | |
| producing key-value pairs. | |
| - PyArg_ParseTupleAndKeywords() requires that the number of entries in | |
| the keyword list equal the number of argument specifiers. This | |
| wasn't checked correctly, and PyArg_ParseTupleAndKeywords could even | |
| dump core in some bad cases. This has been repaired. As a result, | |
| PyArg_ParseTupleAndKeywords may raise RuntimeError in bad cases that | |
| previously went unchallenged. | |
| New platforms | |
| ------------- | |
| Tests | |
| ----- | |
| Windows | |
| ------- | |
| Mac | |
| ---- | |
| - In unix-Python on Mac OS X (and darwin) sys.platform is now "darwin", | |
| without any trailing digits. | |
| - Changed logic for finding python home in Mac OS X framework Pythons. | |
| Now sys.executable points to the executable again, in stead of to | |
| the shared library. The latter is used only for locating the python | |
| home. | |
| What's New in Python 2.2b2? | |
| =========================== | |
| *Release date: 16-Nov-2001* | |
| Type/class unification and new-style classes | |
| -------------------------------------------- | |
| - Multiple inheritance mixing new-style and classic classes in the | |
| list of base classes is now allowed, so this works now: | |
| class Classic: pass | |
| class Mixed(Classic, object): pass | |
| The MRO (method resolution order) for each base class is respected | |
| according to its kind, but the MRO for the derived class is computed | |
| using new-style MRO rules if any base class is a new-style class. | |
| This needs to be documented. | |
| - The new built-in dictionary() constructor, and dictionary type, have | |
| been renamed to dict. This reflects a decade of common usage. | |
| - dict() now accepts an iterable object producing 2-sequences. For | |
| example, dict(d.items()) == d for any dictionary d. The argument, | |
| and the elements of the argument, can be any iterable objects. | |
| - New-style classes can now have a __del__ method, which is called | |
| when the instance is deleted (just like for classic classes). | |
| - Assignment to object.__dict__ is now possible, for objects that are | |
| instances of new-style classes that have a __dict__ (unless the base | |
| class forbids it). | |
| - Methods of built-in types now properly check for keyword arguments | |
| (formerly these were silently ignored). The only built-in methods | |
| that take keyword arguments are __call__, __init__ and __new__. | |
| - The socket function has been converted to a type; see below. | |
| Core and builtins | |
| ----------------- | |
| - Assignment to __debug__ raises SyntaxError at compile-time. This | |
| was promised when 2.1c1 was released as "What's New in Python 2.1c1" | |
| (see below) says. | |
| - Clarified the error messages for unsupported operands to an operator | |
| (like 1 + ''). | |
| Extension modules | |
| ----------------- | |
| - mmap has a new keyword argument, "access", allowing a uniform way for | |
| both Windows and Unix users to create read-only, write-through and | |
| copy-on-write memory mappings. This was previously possible only on | |
| Unix. A new keyword argument was required to support this in a | |
| uniform way because the mmap() signatures had diverged across | |
| platforms. Thanks to Jay T Miller for repairing this! | |
| - By default, the gc.garbage list now contains only those instances in | |
| unreachable cycles that have __del__ methods; in 2.1 it contained all | |
| instances in unreachable cycles. "Instances" here has been generalized | |
| to include instances of both new-style and old-style classes. | |
| - The socket module defines a new method for socket objects, | |
| sendall(). This is like send() but may make multiple calls to | |
| send() until all data has been sent. Also, the socket function has | |
| been converted to a subclassable type, like list and tuple (etc.) | |
| before it; socket and SocketType are now the same thing. | |
| - Various bugfixes to the curses module. There is now a test suite | |
| for the curses module (you have to run it manually). | |
| - binascii.b2a_base64 no longer places an arbitrary restriction of 57 | |
| bytes on its input. | |
| Library | |
| ------- | |
| - tkFileDialog exposes a Directory class and askdirectory | |
| convenience function. | |
| - Symbolic group names in regular expressions must be unique. For | |
| example, the regexp r'(?P<abc>)(?P<abc>)' is not allowed, because a | |
| single name can't mean both "group 1" and "group 2" simultaneously. | |
| Python 2.2 detects this error at regexp compilation time; | |
| previously, the error went undetected, and results were | |
| unpredictable. Also in sre, the pattern.split(), pattern.sub(), and | |
| pattern.subn() methods have been rewritten in C. Also, an | |
| experimental function/method finditer() has been added, which works | |
| like findall() but returns an iterator. | |
| - Tix exposes more commands through the classes DirSelectBox, | |
| DirSelectDialog, ListNoteBook, Meter, CheckList, and the | |
| methods tix_addbitmapdir, tix_cget, tix_configure, tix_filedialog, | |
| tix_getbitmap, tix_getimage, tix_option_get, and tix_resetoptions. | |
| - Traceback objects are now scanned by cyclic garbage collection, so | |
| cycles created by casual use of sys.exc_info() no longer cause | |
| permanent memory leaks (provided garbage collection is enabled). | |
| - mimetypes.py has optional support for non-standard, but commonly | |
| found types. guess_type() and guess_extension() now accept an | |
| optional 'strict' flag, defaulting to true, which controls whether | |
| recognize non-standard types or not. A few non-standard types we | |
| know about have been added. Also, when run as a script, there are | |
| new -l and -e options. | |
| - statcache is now deprecated. | |
| - email.Utils.formatdate() now produces the preferred RFC 2822 style | |
| dates with numeric timezones (it used to produce obsolete dates | |
| hard coded to "GMT" timezone). An optional 'localtime' flag is | |
| added to produce dates in the local timezone, with daylight savings | |
| time properly taken into account. | |
| - In pickle and cPickle, instead of masking errors in load() by | |
| transforming them into SystemError, we let the original exception | |
| propagate out. Also, implement support for __safe_for_unpickling__ | |
| in pickle, as it already was supported in cPickle. | |
| Tools/Demos | |
| ----------- | |
| Build | |
| ----- | |
| - The dbm module is built using libdb1 if available. The bsddb module | |
| is built with libdb3 if available. | |
| - Misc/Makefile.pre.in has been removed by BDFL pronouncement. | |
| C API | |
| ----- | |
| - New function PySequence_Fast_GET_SIZE() returns the size of a non- | |
| NULL result from PySequence_Fast(), more quickly than calling | |
| PySequence_Size(). | |
| - New argument unpacking function PyArg_UnpackTuple() added. | |
| - New functions PyObject_CallFunctionObjArgs() and | |
| PyObject_CallMethodObjArgs() have been added to make it more | |
| convenient and efficient to call functions and methods from C. | |
| - PyArg_ParseTupleAndKeywords() no longer masks errors, so it's | |
| possible that this will propagate errors it didn't before. | |
| - New function PyObject_CheckReadBuffer(), which returns true if its | |
| argument supports the single-segment readable buffer interface. | |
| New platforms | |
| ------------- | |
| - We've finally confirmed that this release builds on HP-UX 11.00, | |
| *with* threads, and passes the test suite. | |
| - Thanks to a series of patches from Michael Muller, Python may build | |
| again under OS/2 Visual Age C++. | |
| - Updated RISCOS port by Dietmar Schwertberger. | |
| Tests | |
| ----- | |
| - Added a test script for the curses module. It isn't run automatically; | |
| regrtest.py must be run with '-u curses' to enable it. | |
| Windows | |
| ------- | |
| Mac | |
| ---- | |
| - PythonScript has been moved to unsupported and is slated to be | |
| removed completely in the next release. | |
| - It should now be possible to build applets that work on both OS9 and | |
| OSX. | |
| - The core is now linked with CoreServices not Carbon; as a side | |
| result, default 8bit encoding on OSX is now ASCII. | |
| - Python should now build on OSX 10.1.1 | |
| What's New in Python 2.2b1? | |
| =========================== | |
| *Release date: 19-Oct-2001* | |
| Type/class unification and new-style classes | |
| -------------------------------------------- | |
| - New-style classes are now always dynamic (except for built-in and | |
| extension types). There is no longer a performance penalty, and I | |
| no longer see another reason to keep this baggage around. One relic | |
| remains: the __dict__ of a new-style class is a read-only proxy; you | |
| must set the class's attribute to modify it. As a consequence, the | |
| __defined__ attribute of new-style types no longer exists, for lack | |
| of need: there is once again only one __dict__ (although in the | |
| future a __cache__ may be resurrected with a similar function, if I | |
| can prove that it actually speeds things up). | |
| - C.__doc__ now works as expected for new-style classes (in 2.2a4 it | |
| always returned None, even when there was a class docstring). | |
| - doctest now finds and runs docstrings attached to new-style classes, | |
| class methods, static methods, and properties. | |
| Core and builtins | |
| ----------------- | |
| - A very subtle syntactical pitfall in list comprehensions was fixed. | |
| For example: [a+b for a in 'abc', for b in 'def']. The comma in | |
| this example is a mistake. Previously, this would silently let 'a' | |
| iterate over the singleton tuple ('abc',), yielding ['abcd', 'abce', | |
| 'abcf'] rather than the intended ['ad', 'ae', 'af', 'bd', 'be', | |
| 'bf', 'cd', 'ce', 'cf']. Now, this is flagged as a syntax error. | |
| Note that [a for a in <singleton>] is a convoluted way to say | |
| [<singleton>] anyway, so it's not like any expressiveness is lost. | |
| - getattr(obj, name, default) now only catches AttributeError, as | |
| documented, rather than returning the default value for all | |
| exceptions (which could mask bugs in a __getattr__ hook, for | |
| example). | |
| - Weak reference objects are now part of the core and offer a C API. | |
| A bug which could allow a core dump when binary operations involved | |
| proxy reference has been fixed. weakref.ReferenceError is now a | |
| built-in exception. | |
| - unicode(obj) now behaves more like str(obj), accepting arbitrary | |
| objects, and calling a __unicode__ method if it exists. | |
| unicode(obj, encoding) and unicode(obj, encoding, errors) still | |
| require an 8-bit string or character buffer argument. | |
| - isinstance() now allows any object as the first argument and a | |
| class, a type or something with a __bases__ tuple attribute for the | |
| second argument. The second argument may also be a tuple of a | |
| class, type, or something with __bases__, in which case isinstance() | |
| will return true if the first argument is an instance of any of the | |
| things contained in the second argument tuple. E.g. | |
| isinstance(x, (A, B)) | |
| returns true if x is an instance of A or B. | |
| Extension modules | |
| ----------------- | |
| - thread.start_new_thread() now returns the thread ID (previously None). | |
| - binascii has now two quopri support functions, a2b_qp and b2a_qp. | |
| - readline now supports setting the startup_hook and the | |
| pre_event_hook, and adds the add_history() function. | |
| - os and posix supports chroot(), setgroups() and unsetenv() where | |
| available. The stat(), fstat(), statvfs() and fstatvfs() functions | |
| now return "pseudo-sequences" -- the various fields can now be | |
| accessed as attributes (e.g. os.stat("/").st_mtime) but for | |
| backwards compatibility they also behave as a fixed-length sequence. | |
| Some platform-specific fields (e.g. st_rdev) are only accessible as | |
| attributes. | |
| - time: localtime(), gmtime() and strptime() now return a | |
| pseudo-sequence similar to the os.stat() return value, with | |
| attributes like tm_year etc. | |
| - Decompression objects in the zlib module now accept an optional | |
| second parameter to decompress() that specifies the maximum amount | |
| of memory to use for the uncompressed data. | |
| - optional SSL support in the socket module now exports OpenSSL | |
| functions RAND_add(), RAND_egd(), and RAND_status(). These calls | |
| are useful on platforms like Solaris where OpenSSL does not | |
| automatically seed its PRNG. Also, the keyfile and certfile | |
| arguments to socket.ssl() are now optional. | |
| - posixmodule (and by extension, the os module on POSIX platforms) now | |
| exports O_LARGEFILE, O_DIRECT, O_DIRECTORY, and O_NOFOLLOW. | |
| Library | |
| ------- | |
| - doctest now excludes functions and classes not defined by the module | |
| being tested, thanks to Tim Hochberg. | |
| - HotShot, a new profiler implemented using a C-based callback, has | |
| been added. This substantially reduces the overhead of profiling, | |
| but it is still quite preliminary. Support modules and | |
| documentation will be added in upcoming releases (before 2.2 final). | |
| - profile now produces correct output in situations where an exception | |
| raised in Python is cleared by C code (e.g. hasattr()). This used | |
| to cause wrong output, including spurious claims of recursive | |
| functions and attribution of time spent to the wrong function. | |
| The code and documentation for the derived OldProfile and HotProfile | |
| profiling classes was removed. The code hasn't worked for years (if | |
| you tried to use them, they raised exceptions). OldProfile | |
| intended to reproduce the behavior of the profiler Python used more | |
| than 7 years ago, and isn't interesting anymore. HotProfile intended | |
| to provide a faster profiler (but producing less information), and | |
| that's a worthy goal we intend to meet via a different approach (but | |
| without losing information). | |
| - Profile.calibrate() has a new implementation that should deliver | |
| a much better system-specific calibration constant. The constant can | |
| now be specified in an instance constructor, or as a Profile class or | |
| instance variable, instead of by editing profile.py's source code. | |
| Calibration must still be done manually (see the docs for the profile | |
| module). | |
| Note that Profile.calibrate() must be overridden by subclasses. | |
| Improving the accuracy required exploiting detailed knowledge of | |
| profiler internals; the earlier method abstracted away the details | |
| and measured a simplified model instead, but consequently computed | |
| a constant too small by a factor of 2 on some modern machines. | |
| - quopri's encode and decode methods take an optional header parameter, | |
| which indicates whether output is intended for the header 'Q' | |
| encoding. | |
| - The SocketServer.ThreadingMixIn class now closes the request after | |
| finish_request() returns. (Not when it errors out though.) | |
| - The nntplib module's NNTP.body() method has grown a 'file' argument | |
| to allow saving the message body to a file. | |
| - The email package has added a class email.Parser.HeaderParser which | |
| only parses headers and does not recurse into the message's body. | |
| Also, the module/class MIMEAudio has been added for representing | |
| audio data (contributed by Anthony Baxter). | |
| - ftplib should be able to handle files > 2GB. | |
| - ConfigParser.getboolean() now also interprets TRUE, FALSE, YES, NO, | |
| ON, and OFF. | |
| - xml.dom.minidom NodeList objects now support the length attribute | |
| and item() method as required by the DOM specifications. | |
| Tools/Demos | |
| ----------- | |
| - Demo/dns was removed. It no longer serves any purpose; a package | |
| derived from it is now maintained by Anthony Baxter, see | |
| http://PyDNS.SourceForge.net. | |
| - The freeze tool has been made more robust, and two new options have | |
| been added: -X and -E. | |
| Build | |
| ----- | |
| - configure will use CXX in LINKCC if CXX is used to build main() and | |
| the system requires to link a C++ main using the C++ compiler. | |
| C API | |
| ----- | |
| - The documentation for the tp_compare slot is updated to require that | |
| the return value must be -1, 0, 1; an arbitrary number <0 or >0 is | |
| not correct. This is not yet enforced but will be enforced in | |
| Python 2.3; even later, we may use -2 to indicate errors and +2 for | |
| "NotImplemented". Right now, -1 should be used for an error return. | |
| - PyLong_AsLongLong() now accepts int (as well as long) arguments. | |
| Consequently, PyArg_ParseTuple's 'L' code also accepts int (as well | |
| as long) arguments. | |
| - PyThread_start_new_thread() now returns a long int giving the thread | |
| ID, if one can be calculated; it returns -1 for error, 0 if no | |
| thread ID is calculated (this is an incompatible change, but only | |
| the thread module used this API). This code has only really been | |
| tested on Linux and Windows; other platforms please beware (and | |
| report any bugs or strange behavior). | |
| - PyUnicode_FromEncodedObject() no longer accepts Unicode objects as | |
| input. | |
| New platforms | |
| ------------- | |
| Tests | |
| ----- | |
| Windows | |
| ------- | |
| - Installer: If you install IDLE, and don't disable file-extension | |
| registration, a new "Edit with IDLE" context (right-click) menu entry | |
| is created for .py and .pyw files. | |
| - The signal module now supports SIGBREAK on Windows, thanks to Steven | |
| Scott. Note that SIGBREAK is unique to Windows. The default SIGBREAK | |
| action remains to call Win32 ExitProcess(). This can be changed via | |
| signal.signal(). For example:: | |
| # Make Ctrl+Break raise KeyboardInterrupt, like Python's default Ctrl+C | |
| # (SIGINT) behavior. | |
| import signal | |
| signal.signal(signal.SIGBREAK, signal.default_int_handler) | |
| try: | |
| while 1: | |
| pass | |
| except KeyboardInterrupt: | |
| # We get here on Ctrl+C or Ctrl+Break now; if we had not changed | |
| # SIGBREAK, only on Ctrl+C (and Ctrl+Break would terminate the | |
| # program without the possibility for any Python-level cleanup). | |
| print "Clean exit" | |
| What's New in Python 2.2a4? | |
| =========================== | |
| *Release date: 28-Sep-2001* | |
| Type/class unification and new-style classes | |
| -------------------------------------------- | |
| - pydoc and inspect are now aware of new-style classes; | |
| e.g. help(list) at the interactive prompt now shows proper | |
| documentation for all operations on list objects. | |
| - Applications using Jim Fulton's ExtensionClass module can now safely | |
| be used with Python 2.2. In particular, Zope 2.4.1 now works with | |
| Python 2.2 (as well as with Python 2.1.1). The Demo/metaclass | |
| examples also work again. It is hoped that Gtk and Boost also work | |
| with 2.2a4 and beyond. (If you can confirm this, please write | |
| webmaster@python.org; if there are still problems, please open a bug | |
| report on SourceForge.) | |
| - property() now takes 4 keyword arguments: fget, fset, fdel and doc. | |
| These map to read-only attributes 'fget', 'fset', 'fdel', and '__doc__' | |
| in the constructed property object. fget, fset and fdel weren't | |
| discoverable from Python in 2.2a3. __doc__ is new, and allows | |
| associating a docstring with a property. | |
| - Comparison overloading is now more completely implemented. For | |
| example, a str subclass instance can properly be compared to a str | |
| instance, and it can properly overload comparison. Ditto for most | |
| other built-in object types. | |
| - The repr() of new-style classes has changed; instead of <type | |
| 'M.Foo'> a new-style class is now rendered as <class 'M.Foo'>, | |
| *except* for built-in types, which are still rendered as <type | |
| 'Foo'> (to avoid upsetting existing code that might parse or | |
| otherwise rely on repr() of certain type objects). | |
| - The repr() of new-style objects is now always <Foo object at XXX>; | |
| previously, it was sometimes <Foo instance at XXX>. | |
| - For new-style classes, what was previously called __getattr__ is now | |
| called __getattribute__. This method, if defined, is called for | |
| *every* attribute access. A new __getattr__ hook more similar to the | |
| one in classic classes is defined which is called only if regular | |
| attribute access raises AttributeError; to catch *all* attribute | |
| access, you can use __getattribute__ (for new-style classes). If | |
| both are defined, __getattribute__ is called first, and if it raises | |
| AttributeError, __getattr__ is called. | |
| - The __class__ attribute of new-style objects can be assigned to. | |
| The new class must have the same C-level object layout as the old | |
| class. | |
| - The built-in file type can be subclassed now. In the usual pattern, | |
| "file" is the name of the built-in type, and file() is a new built-in | |
| constructor, with the same signature as the built-in open() function. | |
| file() is now the preferred way to open a file. | |
| - Previously, __new__ would only see sequential arguments passed to | |
| the type in a constructor call; __init__ would see both sequential | |
| and keyword arguments. This made no sense whatsoever any more, so | |
| now both __new__ and __init__ see all arguments. | |
| - Previously, hash() applied to an instance of a subclass of str or | |
| unicode always returned 0. This has been repaired. | |
| - Previously, an operation on an instance of a subclass of an | |
| immutable type (int, long, float, complex, tuple, str, unicode), | |
| where the subtype didn't override the operation (and so the | |
| operation was handled by the built-in type), could return that | |
| instance instead a value of the base type. For example, if s was of | |
| a str subclass type, s[:] returned s as-is. Now it returns a str | |
| with the same value as s. | |
| - Provisional support for pickling new-style objects has been added. | |
| Core | |
| ---- | |
| - file.writelines() now accepts any iterable object producing strings. | |
| - PyUnicode_FromEncodedObject() now works very much like | |
| PyObject_Str(obj) in that it tries to use __str__/tp_str | |
| on the object if the object is not a string or buffer. This | |
| makes unicode() behave like str() when applied to non-string/buffer | |
| objects. | |
| - PyFile_WriteObject now passes Unicode objects to the file's write | |
| method. As a result, all file-like objects which may be the target | |
| of a print statement must support Unicode objects, i.e. they must | |
| at least convert them into ASCII strings. | |
| - Thread scheduling on Solaris should be improved; it is no longer | |
| necessary to insert a small sleep at the start of a thread in order | |
| to let other runnable threads be scheduled. | |
| Library | |
| ------- | |
| - StringIO.StringIO instances and cStringIO.StringIO instances support | |
| read character buffer compatible objects for their .write() methods. | |
| These objects are converted to strings and then handled as such | |
| by the instances. | |
| - The "email" package has been added. This is basically a port of the | |
| mimelib package <http://sf.net/projects/mimelib> with API changes | |
| and some implementations updated to use iterators and generators. | |
| - difflib.ndiff() and difflib.Differ.compare() are generators now. This | |
| restores the ability of Tools/scripts/ndiff.py to start producing output | |
| before the entire comparison is complete. | |
| - StringIO.StringIO instances and cStringIO.StringIO instances support | |
| iteration just like file objects (i.e. their .readline() method is | |
| called for each iteration until it returns an empty string). | |
| - The codecs module has grown four new helper APIs to access | |
| built-in codecs: getencoder(), getdecoder(), getreader(), | |
| getwriter(). | |
| - SimpleXMLRPCServer: a new module (based upon SimpleHTMLServer) | |
| simplifies writing XML RPC servers. | |
| - os.path.realpath(): a new function that returns the absolute pathname | |
| after interpretation of symbolic links. On non-Unix systems, this | |
| is an alias for os.path.abspath(). | |
| - operator.indexOf() (PySequence_Index() in the C API) now works with any | |
| iterable object. | |
| - smtplib now supports various authentication and security features of | |
| the SMTP protocol through the new login() and starttls() methods. | |
| - hmac: a new module implementing keyed hashing for message | |
| authentication. | |
| - mimetypes now recognizes more extensions and file types. At the | |
| same time, some mappings not sanctioned by IANA were removed. | |
| - The "compiler" package has been brought up to date to the state of | |
| Python 2.2 bytecode generation. It has also been promoted from a | |
| Tool to a standard library package. (Tools/compiler still exists as | |
| a sample driver.) | |
| Build | |
| ----- | |
| - Large file support (LFS) is now automatic when the platform supports | |
| it; no more manual configuration tweaks are needed. On Linux, at | |
| least, it's possible to have a system whose C library supports large | |
| files but whose kernel doesn't; in this case, large file support is | |
| still enabled but doesn't do you any good unless you upgrade your | |
| kernel or share your Python executable with another system whose | |
| kernel has large file support. | |
| - The configure script now supplies plausible defaults in a | |
| cross-compilation environment. This doesn't mean that the supplied | |
| values are always correct, or that cross-compilation now works | |
| flawlessly -- but it's a first step (and it shuts up most of | |
| autoconf's warnings about AC_TRY_RUN). | |
| - The Unix build is now a bit less chatty, courtesy of the parser | |
| generator. The build is completely silent (except for errors) when | |
| using "make -s", thanks to a -q option to setup.py. | |
| C API | |
| ----- | |
| - The "structmember" API now supports some new flag bits to deny read | |
| and/or write access to attributes in restricted execution mode. | |
| New platforms | |
| ------------- | |
| - Compaq's iPAQ handheld, running the "familiar" Linux distribution | |
| (http://familiar.handhelds.org). | |
| Tests | |
| ----- | |
| - The "classic" standard tests, which work by comparing stdout to | |
| an expected-output file under Lib/test/output/, no longer stop at | |
| the first mismatch. Instead the test is run to completion, and a | |
| variant of ndiff-style comparison is used to report all differences. | |
| This is much easier to understand than the previous style of reporting. | |
| - The unittest-based standard tests now use regrtest's test_main() | |
| convention, instead of running as a side-effect of merely being | |
| imported. This allows these tests to be run in more natural and | |
| flexible ways as unittests, outside the regrtest framework. | |
| - regrtest.py is much better integrated with unittest and doctest now, | |
| especially in regard to reporting errors. | |
| Windows | |
| ------- | |
| - Large file support now also works for files > 4GB, on filesystems | |
| that support it (NTFS under Windows 2000). See "What's New in | |
| Python 2.2a3" for more detail. | |
| What's New in Python 2.2a3? | |
| =========================== | |
| *Release Date: 07-Sep-2001* | |
| Core | |
| ---- | |
| - Conversion of long to float now raises OverflowError if the long is too | |
| big to represent as a C double. | |
| - The 3-argument builtin pow() no longer allows a third non-None argument | |
| if either of the first two arguments is a float, or if both are of | |
| integer types and the second argument is negative (in which latter case | |
| the arguments are converted to float, so this is really the same | |
| restriction). | |
| - The builtin dir() now returns more information, and sometimes much | |
| more, generally naming all attributes of an object, and all attributes | |
| reachable from the object via its class, and from its class's base | |
| classes, and so on from them too. Example: in 2.2a2, dir([]) returned | |
| an empty list. In 2.2a3, | |
| >>> dir([]) | |
| ['__add__', '__class__', '__contains__', '__delattr__', '__delitem__', | |
| '__eq__', '__ge__', '__getattr__', '__getitem__', '__getslice__', | |
| '__gt__', '__hash__', '__iadd__', '__imul__', '__init__', '__le__', | |
| '__len__', '__lt__', '__mul__', '__ne__', '__new__', '__repr__', | |
| '__rmul__', '__setattr__', '__setitem__', '__setslice__', '__str__', | |
| 'append', 'count', 'extend', 'index', 'insert', 'pop', 'remove', | |
| 'reverse', 'sort'] | |
| dir(module) continues to return only the module's attributes, though. | |
| - Overflowing operations on plain ints now return a long int rather | |
| than raising OverflowError. This is a partial implementation of PEP | |
| 237. You can use -Wdefault::OverflowWarning to enable a warning for | |
| this situation, and -Werror::OverflowWarning to revert to the old | |
| OverflowError exception. | |
| - A new command line option, -Q<arg>, is added to control run-time | |
| warnings for the use of classic division. (See PEP 238.) Possible | |
| values are -Qold, -Qwarn, -Qwarnall, and -Qnew. The default is | |
| -Qold, meaning the / operator has its classic meaning and no | |
| warnings are issued. Using -Qwarn issues a run-time warning about | |
| all uses of classic division for int and long arguments; -Qwarnall | |
| also warns about classic division for float and complex arguments | |
| (for use with fixdiv.py). | |
| [Note: the remainder of this item (preserved below) became | |
| obsolete in 2.2c1 -- -Qnew has global effect in 2.2] :: | |
| Using -Qnew is questionable; it turns on new division by default, but | |
| only in the __main__ module. You can usefully combine -Qwarn or | |
| -Qwarnall and -Qnew: this gives the __main__ module new division, and | |
| warns about classic division everywhere else. | |
| - Many built-in types can now be subclassed. This applies to int, | |
| long, float, str, unicode, and tuple. (The types complex, list and | |
| dictionary can also be subclassed; this was introduced earlier.) | |
| Note that restrictions apply when subclassing immutable built-in | |
| types: you can only affect the value of the instance by overloading | |
| __new__. You can add mutable attributes, and the subclass instances | |
| will have a __dict__ attribute, but you cannot change the "value" | |
| (as implemented by the base class) of an immutable subclass instance | |
| once it is created. | |
| - The dictionary constructor now takes an optional argument, a | |
| mapping-like object, and initializes the dictionary from its | |
| (key, value) pairs. | |
| - A new built-in type, super, has been added. This facilitates making | |
| "cooperative super calls" in a multiple inheritance setting. For an | |
| explanation, see http://www.python.org/2.2/descrintro.html#cooperation | |
| - A new built-in type, property, has been added. This enables the | |
| creation of "properties". These are attributes implemented by | |
| getter and setter functions (or only one of these for read-only or | |
| write-only attributes), without the need to override __getattr__. | |
| See http://www.python.org/2.2/descrintro.html#property | |
| - The syntax of floating-point and imaginary literals has been | |
| liberalized, to allow leading zeroes. Examples of literals now | |
| legal that were SyntaxErrors before: | |
| 00.0 0e3 0100j 07.5 00000000000000000008. | |
| - An old tokenizer bug allowed floating point literals with an incomplete | |
| exponent, such as 1e and 3.1e-. Such literals now raise SyntaxError. | |
| Library | |
| ------- | |
| - telnetlib includes symbolic names for the options, and support for | |
| setting an option negotiation callback. It also supports processing | |
| of suboptions. | |
| - The new C standard no longer requires that math libraries set errno to | |
| ERANGE on overflow. For platform libraries that exploit this new | |
| freedom, Python's overflow-checking was wholly broken. A new overflow- | |
| checking scheme attempts to repair that, but may not be reliable on all | |
| platforms (C doesn't seem to provide anything both useful and portable | |
| in this area anymore). | |
| - Asynchronous timeout actions are available through the new class | |
| threading.Timer. | |
| - math.log and math.log10 now return sensible results for even huge | |
| long arguments. For example, math.log10(10 ** 10000) ~= 10000.0. | |
| - A new function, imp.lock_held(), returns 1 when the import lock is | |
| currently held. See the docs for the imp module. | |
| - pickle, cPickle and marshal on 32-bit platforms can now correctly read | |
| dumps containing ints written on platforms where Python ints are 8 bytes. | |
| When read on a box where Python ints are 4 bytes, such values are | |
| converted to Python longs. | |
| - In restricted execution mode (using the rexec module), unmarshalling | |
| code objects is no longer allowed. This plugs a security hole. | |
| - unittest.TestResult instances no longer store references to tracebacks | |
| generated by test failures. This prevents unexpected dangling references | |
| to objects that should be garbage collected between tests. | |
| Tools | |
| ----- | |
| - Tools/scripts/fixdiv.py has been added which can be used to fix | |
| division operators as per PEP 238. | |
| Build | |
| ----- | |
| - If you are an adventurous person using Mac OS X you may want to look at | |
| Mac/OSX. There is a Makefile there that will build Python as a real Mac | |
| application, which can be used for experimenting with Carbon or Cocoa. | |
| Discussion of this on pythonmac-sig, please. | |
| C API | |
| ----- | |
| - New function PyObject_Dir(obj), like Python __builtin__.dir(obj). | |
| - Note that PyLong_AsDouble can fail! This has always been true, but no | |
| callers checked for it. It's more likely to fail now, because overflow | |
| errors are properly detected now. The proper way to check:: | |
| double x = PyLong_AsDouble(some_long_object); | |
| if (x == -1.0 && PyErr_Occurred()) { | |
| /* The conversion failed. */ | |
| } | |
| - The GC API has been changed. Extensions that use the old API will still | |
| compile but will not participate in GC. To upgrade an extension | |
| module: | |
| - rename Py_TPFLAGS_GC to PyTPFLAGS_HAVE_GC | |
| - use PyObject_GC_New or PyObject_GC_NewVar to allocate objects and | |
| PyObject_GC_Del to deallocate them | |
| - rename PyObject_GC_Init to PyObject_GC_Track and PyObject_GC_Fini | |
| to PyObject_GC_UnTrack | |
| - remove PyGC_HEAD_SIZE from object size calculations | |
| - remove calls to PyObject_AS_GC and PyObject_FROM_GC | |
| - Two new functions: PyString_FromFormat() and PyString_FromFormatV(). | |
| These can be used safely to construct string objects from a | |
| sprintf-style format string (similar to the format string supported | |
| by PyErr_Format()). | |
| New platforms | |
| ------------- | |
| - Stephen Hansen contributed patches sufficient to get a clean compile | |
| under Borland C (Windows), but he reports problems running it and ran | |
| out of time to complete the port. Volunteers? Expect a MemoryError | |
| when importing the types module; this is probably shallow, and | |
| causing later failures too. | |
| Tests | |
| ----- | |
| Windows | |
| ------- | |
| - Large file support is now enabled on Win32 platforms as well as on | |
| Win64. This means that, for example, you can use f.tell() and f.seek() | |
| to manipulate files larger than 2 gigabytes (provided you have enough | |
| disk space, and are using a Windows filesystem that supports large | |
| partitions). Windows filesystem limits: FAT has a 2GB (gigabyte) | |
| filesize limit, and large file support makes no difference there. | |
| FAT32's limit is 4GB, and files >= 2GB are easier to use from Python now. | |
| NTFS has no practical limit on file size, and files of any size can be | |
| used from Python now. | |
| - The w9xpopen hack is now used on Windows NT and 2000 too when COMPSPEC | |
| points to command.com (patch from Brian Quinlan). | |
| What's New in Python 2.2a2? | |
| =========================== | |
| *Release Date: 22-Aug-2001* | |
| Build | |
| ----- | |
| - Tim Peters developed a brand new Windows installer using Wise 8.1, | |
| generously donated to us by Wise Solutions. | |
| - configure supports a new option --enable-unicode, with the values | |
| ucs2 and ucs4 (new in 2.2a1). With --disable-unicode, the Unicode | |
| type and supporting code is completely removed from the interpreter. | |
| - A new configure option --enable-framework builds a Mac OS X framework, | |
| which "make frameworkinstall" will install. This provides a starting | |
| point for more mac-like functionality, join pythonmac-sig@python.org | |
| if you are interested in helping. | |
| - The NeXT platform is no longer supported. | |
| - The 'new' module is now statically linked. | |
| Tools | |
| ----- | |
| - The new Tools/scripts/cleanfuture.py can be used to automatically | |
| edit out obsolete future statements from Python source code. See | |
| the module docstring for details. | |
| Tests | |
| ----- | |
| - regrtest.py now knows which tests are expected to be skipped on some | |
| platforms, allowing clearer test result output to be given. regrtest | |
| also has optional --use/-u switch to run normally disabled tests | |
| which require network access or consume significant disk resources. | |
| - Several new tests in the standard test suite, with special thanks to | |
| Nick Mathewson. | |
| Core | |
| ---- | |
| - The floor division operator // has been added as outlined in PEP | |
| 238. The / operator still provides classic division (and will until | |
| Python 3.0) unless "from __future__ import division" is included, in | |
| which case the / operator will provide true division. The operator | |
| module provides truediv() and floordiv() functions. Augmented | |
| assignment variants are included, as are the equivalent overloadable | |
| methods and C API methods. See the PEP for a full discussion: | |
| <http://python.sf.net/peps/pep-0238.html> | |
| - Future statements are now effective in simulated interactive shells | |
| (like IDLE). This should "just work" by magic, but read Michael | |
| Hudson's "Future statements in simulated shells" PEP 264 for full | |
| details: <http://python.sf.net/peps/pep-0264.html>. | |
| - The type/class unification (PEP 252-253) was integrated into the | |
| trunk and is not so tentative any more (the exact specification of | |
| some features is still tentative). A lot of work has done on fixing | |
| bugs and adding robustness and features (performance still has to | |
| come a long way). | |
| - Warnings about a mismatch in the Python API during extension import | |
| now use the Python warning framework (which makes it possible to | |
| write filters for these warnings). | |
| - A function's __dict__ (aka func_dict) will now always be a | |
| dictionary. It used to be possible to delete it or set it to None, | |
| but now both actions raise TypeErrors. It is still legal to set it | |
| to a dictionary object. Getting func.__dict__ before any attributes | |
| have been assigned now returns an empty dictionary instead of None. | |
| - A new command line option, -E, was added which disables the use of | |
| all environment variables, or at least those that are specifically | |
| significant to Python. Usually those have a name starting with | |
| "PYTHON". This was used to fix a problem where the tests fail if | |
| the user happens to have PYTHONHOME or PYTHONPATH pointing to an | |
| older distribution. | |
| Library | |
| ------- | |
| - New class Differ and new functions ndiff() and restore() in difflib.py. | |
| These package the algorithms used by the popular Tools/scripts/ndiff.py, | |
| for programmatic reuse. | |
| - New function xml.sax.saxutils.quoteattr(): Quote an XML attribute | |
| value using the minimal quoting required for the value; more | |
| reliable than using xml.sax.saxutils.escape() for attribute values. | |
| - Readline completion support for cmd.Cmd was added. | |
| - Calling os.tempnam() or os.tmpnam() generate RuntimeWarnings. | |
| - Added function threading.BoundedSemaphore() | |
| - Added Ka-Ping Yee's cgitb.py module. | |
| - The 'new' module now exposes the CO_xxx flags. | |
| - The gc module offers the get_referents function. | |
| New platforms | |
| ------------- | |
| C API | |
| ----- | |
| - Two new APIs PyOS_snprintf() and PyOS_vsnprintf() were added | |
| which provide a cross-platform implementations for the | |
| relatively new snprintf()/vsnprintf() C lib APIs. In contrast to | |
| the standard sprintf() and vsprintf() C lib APIs, these versions | |
| apply bounds checking on the used buffer which enhances protection | |
| against buffer overruns. | |
| - Unicode APIs now use name mangling to assure that mixing interpreters | |
| and extensions using different Unicode widths is rendered next to | |
| impossible. Trying to import an incompatible Unicode-aware extension | |
| will result in an ImportError. Unicode extensions writers must make | |
| sure to check the Unicode width compatibility in their extensions by | |
| using at least one of the mangled Unicode APIs in the extension. | |
| - Two new flags METH_NOARGS and METH_O are available in method definition | |
| tables to simplify implementation of methods with no arguments and a | |
| single untyped argument. Calling such methods is more efficient than | |
| calling corresponding METH_VARARGS methods. METH_OLDARGS is now | |
| deprecated. | |
| Windows | |
| ------- | |
| - "import module" now compiles module.pyw if it exists and nothing else | |
| relevant is found. | |
| What's New in Python 2.2a1? | |
| =========================== | |
| *Release date: 18-Jul-2001* | |
| Core | |
| ---- | |
| - TENTATIVELY, a large amount of code implementing much of what's | |
| described in PEP 252 (Making Types Look More Like Classes) and PEP | |
| 253 (Subtyping Built-in Types) was added. This will be released | |
| with Python 2.2a1. Documentation will be provided separately | |
| through http://www.python.org/2.2/. The purpose of releasing this | |
| with Python 2.2a1 is to test backwards compatibility. It is | |
| possible, though not likely, that a decision is made not to release | |
| this code as part of 2.2 final, if any serious backwards | |
| incompatibilities are found during alpha testing that cannot be | |
| repaired. | |
| - Generators were added; this is a new way to create an iterator (see | |
| below) using what looks like a simple function containing one or | |
| more 'yield' statements. See PEP 255. Since this adds a new | |
| keyword to the language, this feature must be enabled by including a | |
| future statement: "from __future__ import generators" (see PEP 236). | |
| Generators will become a standard feature in a future release | |
| (probably 2.3). Without this future statement, 'yield' remains an | |
| ordinary identifier, but a warning is issued each time it is used. | |
| (These warnings currently don't conform to the warnings framework of | |
| PEP 230; we intend to fix this in 2.2a2.) | |
| - The UTF-16 codec was modified to be more RFC compliant. It will now | |
| only remove BOM characters at the start of the string and then | |
| only if running in native mode (UTF-16-LE and -BE won't remove a | |
| leading BMO character). | |
| - Strings now have a new method .decode() to complement the already | |
| existing .encode() method. These two methods provide direct access | |
| to the corresponding decoders and encoders of the registered codecs. | |
| To enhance the usability of the .encode() method, the special | |
| casing of Unicode object return values was dropped (Unicode objects | |
| were auto-magically converted to string using the default encoding). | |
| Both methods will now return whatever the codec in charge of the | |
| requested encoding returns as object, e.g. Unicode codecs will | |
| return Unicode objects when decoding is requested ("äöü".decode("latin-1") | |
| will return u"äöü"). This enables codec writer to create codecs | |
| for various simple to use conversions. | |
| New codecs were added to demonstrate these new features (the .encode() | |
| and .decode() columns indicate the type of the returned objects): | |
| +---------+-----------+-----------+-----------------------------+ | |
| |Name | .encode() | .decode() | Description | | |
| +=========+===========+===========+=============================+ | |
| |uu | string | string | UU codec (e.g. for email) | | |
| +---------+-----------+-----------+-----------------------------+ | |
| |base64 | string | string | base64 codec | | |
| +---------+-----------+-----------+-----------------------------+ | |
| |quopri | string | string | quoted-printable codec | | |
| +---------+-----------+-----------+-----------------------------+ | |
| |zlib | string | string | zlib compression | | |
| +---------+-----------+-----------+-----------------------------+ | |
| |hex | string | string | 2-byte hex codec | | |
| +---------+-----------+-----------+-----------------------------+ | |
| |rot-13 | string | Unicode | ROT-13 Unicode charmap codec| | |
| +---------+-----------+-----------+-----------------------------+ | |
| - Some operating systems now support the concept of a default Unicode | |
| encoding for file system operations. Notably, Windows supports 'mbcs' | |
| as the default. The Macintosh will also adopt this concept in the medium | |
| term, although the default encoding for that platform will be other than | |
| 'mbcs'. | |
| On operating system that support non-ASCII filenames, it is common for | |
| functions that return filenames (such as os.listdir()) to return Python | |
| string objects pre-encoded using the default file system encoding for | |
| the platform. As this encoding is likely to be different from Python's | |
| default encoding, converting this name to a Unicode object before passing | |
| it back to the Operating System would result in a Unicode error, as Python | |
| would attempt to use its default encoding (generally ASCII) rather than | |
| the default encoding for the file system. | |
| In general, this change simply removes surprises when working with | |
| Unicode and the file system, making these operations work as you expect, | |
| increasing the transparency of Unicode objects in this context. | |
| See [????] for more details, including examples. | |
| - Float (and complex) literals in source code were evaluated to full | |
| precision only when running from a .py file; the same code loaded from a | |
| .pyc (or .pyo) file could suffer numeric differences starting at about the | |
| 12th significant decimal digit. For example, on a machine with IEEE-754 | |
| floating arithmetic, | |
| x = 9007199254740992.0 | |
| print long(x) | |
| printed 9007199254740992 if run directly from .py, but 9007199254740000 | |
| if from a compiled (.pyc or .pyo) file. This was due to marshal using | |
| str(float) instead of repr(float) when building code objects. marshal | |
| now uses repr(float) instead, which should reproduce floats to full | |
| machine precision (assuming the platform C float<->string I/O conversion | |
| functions are of good quality). | |
| This may cause floating-point results to change in some cases, and | |
| usually for the better, but may also cause numerically unstable | |
| algorithms to break. | |
| - The implementation of dicts suffers fewer collisions, which has speed | |
| benefits. However, the order in which dict entries appear in dict.keys(), | |
| dict.values() and dict.items() may differ from previous releases for a | |
| given dict. Nothing is defined about this order, so no program should | |
| rely on it. Nevertheless, it's easy to write test cases that rely on the | |
| order by accident, typically because of printing the str() or repr() of a | |
| dict to an "expected results" file. See Lib/test/test_support.py's new | |
| sortdict(dict) function for a simple way to display a dict in sorted | |
| order. | |
| - Many other small changes to dicts were made, resulting in faster | |
| operation along the most common code paths. | |
| - Dictionary objects now support the "in" operator: "x in dict" means | |
| the same as dict.has_key(x). | |
| - The update() method of dictionaries now accepts generic mapping | |
| objects. Specifically the argument object must support the .keys() | |
| and __getitem__() methods. This allows you to say, for example, | |
| {}.update(UserDict()) | |
| - Iterators were added; this is a generalized way of providing values | |
| to a for loop. See PEP 234. There's a new built-in function iter() | |
| to return an iterator. There's a new protocol to get the next value | |
| from an iterator using the next() method (in Python) or the | |
| tp_iternext slot (in C). There's a new protocol to get iterators | |
| using the __iter__() method (in Python) or the tp_iter slot (in C). | |
| Iterating (i.e. a for loop) over a dictionary generates its keys. | |
| Iterating over a file generates its lines. | |
| - The following functions were generalized to work nicely with iterator | |
| arguments:: | |
| map(), filter(), reduce(), zip() | |
| list(), tuple() (PySequence_Tuple() and PySequence_Fast() in C API) | |
| max(), min() | |
| join() method of strings | |
| extend() method of lists | |
| 'x in y' and 'x not in y' (PySequence_Contains() in C API) | |
| operator.countOf() (PySequence_Count() in C API) | |
| right-hand side of assignment statements with multiple targets, such as :: | |
| x, y, z = some_iterable_object_returning_exactly_3_values | |
| - Accessing module attributes is significantly faster (for example, | |
| random.random or os.path or yourPythonModule.yourAttribute). | |
| - Comparing dictionary objects via == and != is faster, and now works even | |
| if the keys and values don't support comparisons other than ==. | |
| - Comparing dictionaries in ways other than == and != is slower: there were | |
| insecurities in the dict comparison implementation that could cause Python | |
| to crash if the element comparison routines for the dict keys and/or | |
| values mutated the dicts. Making the code bulletproof slowed it down. | |
| - Collisions in dicts are resolved via a new approach, which can help | |
| dramatically in bad cases. For example, looking up every key in a dict | |
| d with d.keys() == [i << 16 for i in range(20000)] is approximately 500x | |
| faster now. Thanks to Christian Tismer for pointing out the cause and | |
| the nature of an effective cure (last December! better late than never). | |
| - repr() is much faster for large containers (dict, list, tuple). | |
| Library | |
| ------- | |
| - The constants ascii_letters, ascii_lowercase. and ascii_uppercase | |
| were added to the string module. These a locale-independent | |
| constants, unlike letters, lowercase, and uppercase. These are now | |
| use in appropriate locations in the standard library. | |
| - The flags used in dlopen calls can now be configured using | |
| sys.setdlopenflags and queried using sys.getdlopenflags. | |
| - Fredrik Lundh's xmlrpclib is now a standard library module. This | |
| provides full client-side XML-RPC support. In addition, | |
| Demo/xmlrpc/ contains two server frameworks (one SocketServer-based, | |
| one asyncore-based). Thanks to Eric Raymond for the documentation. | |
| - The xrange() object is simplified: it no longer supports slicing, | |
| repetition, comparisons, efficient 'in' checking, the tolist() | |
| method, or the start, stop and step attributes. See PEP 260. | |
| - A new function fnmatch.filter to filter lists of file names was added. | |
| - calendar.py uses month and day names based on the current locale. | |
| - strop is now *really* obsolete (this was announced before with 1.6), | |
| and issues DeprecationWarning when used (except for the four items | |
| that are still imported into string.py). | |
| - Cookie.py now sorts key+value pairs by key in output strings. | |
| - pprint.isrecursive(object) didn't correctly identify recursive objects. | |
| Now it does. | |
| - pprint functions now much faster for large containers (tuple, list, dict). | |
| - New 'q' and 'Q' format codes in the struct module, corresponding to C | |
| types "long long" and "unsigned long long" (on Windows, __int64). In | |
| native mode, these can be used only when the platform C compiler supports | |
| these types (when HAVE_LONG_LONG is #define'd by the Python config | |
| process), and then they inherit the sizes and alignments of the C types. | |
| In standard mode, 'q' and 'Q' are supported on all platforms, and are | |
| 8-byte integral types. | |
| - The site module installs a new built-in function 'help' that invokes | |
| pydoc.help. It must be invoked as 'help()'; when invoked as 'help', | |
| it displays a message reminding the user to use 'help()' or | |
| 'help(object)'. | |
| Tests | |
| ----- | |
| - New test_mutants.py runs dict comparisons where the key and value | |
| comparison operators mutate the dicts randomly during comparison. This | |
| rapidly causes Python to crash under earlier releases (not for the faint | |
| of heart: it can also cause Win9x to freeze or reboot!). | |
| - New test_pprint.py verifies that pprint.isrecursive() and | |
| pprint.isreadable() return sensible results. Also verifies that simple | |
| cases produce correct output. | |
| C API | |
| ----- | |
| - Removed the unused last_is_sticky argument from the internal | |
| _PyTuple_Resize(). If this affects you, you were cheating. | |
| What's New in Python 2.1 (final)? | |
| ================================= | |
| We only changed a few things since the last release candidate, all in | |
| Python library code: | |
| - A bug in the locale module was fixed that affected locales which | |
| define no grouping for numeric formatting. | |
| - A few bugs in the weakref module's implementations of weak | |
| dictionaries (WeakValueDictionary and WeakKeyDictionary) were fixed, | |
| and the test suite was updated to check for these bugs. | |
| - An old bug in the os.path.walk() function (introduced in Python | |
| 2.0!) was fixed: a non-existent file would cause an exception | |
| instead of being ignored. | |
| - Fixed a few bugs in the new symtable module found by Neil Norwitz's | |
| PyChecker. | |
| What's New in Python 2.1c2? | |
| =========================== | |
| A flurry of small changes, and one showstopper fixed in the nick of | |
| time made it necessary to release another release candidate. The list | |
| here is the *complete* list of patches (except version updates): | |
| Core | |
| - Tim discovered a nasty bug in the dictionary code, caused by | |
| PyDict_Next() calling dict_resize(), and the GC code's use of | |
| PyDict_Next() violating an assumption in dict_items(). This was | |
| fixed with considerable amounts of band-aid, but the net effect is a | |
| saner and more robust implementation. | |
| - Made a bunch of symbols static that were accidentally global. | |
| Build and Ports | |
| - The setup.py script didn't check for a new enough version of zlib | |
| (1.1.3 is needed). Now it does. | |
| - Changed "make clean" target to also remove shared libraries. | |
| - Added a more general warning about the SGI Irix optimizer to README. | |
| Library | |
| - Fix a bug in urllib.basejoin("http://host", "../file.html") which | |
| omitted the slash between host and file.html. | |
| - The mailbox module's _Mailbox class contained a completely broken | |
| and undocumented seek() method. Ripped it out. | |
| - Fixed a bunch of typos in various library modules (urllib2, smtpd, | |
| sgmllib, netrc, chunk) found by Neil Norwitz's PyChecker. | |
| - Fixed a few last-minute bugs in unittest. | |
| Extensions | |
| - Reverted the patch to the OpenSSL code in socketmodule.c to support | |
| RAND_status() and the EGD, and the subsequent patch that tried to | |
| fix it for pre-0.9.5 versions; the problem with the patch is that on | |
| some systems it issues a warning whenever socket is imported, and | |
| that's unacceptable. | |
| Tests | |
| - Fixed the pickle tests to work with "import test.test_pickle". | |
| - Tweaked test_locale.py to actually run the test Windows. | |
| - In distutils/archive_util.py, call zipfile.ZipFile() with mode "w", | |
| not "wb" (which is not a valid mode at all). | |
| - Fix pstats browser crashes. Import readline if it exists to make | |
| the user interface nicer. | |
| - Add "import thread" to the top of test modules that import the | |
| threading module (test_asynchat and test_threadedtempfile). This | |
| prevents test failures caused by a broken threading module resulting | |
| from a previously caught failed import. | |
| - Changed test_asynchat.py to set the SO_REUSEADDR option; this was | |
| needed on some platforms (e.g. Solaris 8) when the tests are run | |
| twice in succession. | |
| - Skip rather than fail test_sunaudiodev if no audio device is found. | |
| What's New in Python 2.1c1? | |
| =========================== | |
| This list was significantly updated when 2.1c2 was released; the 2.1c1 | |
| release didn't mention most changes that were actually part of 2.1c1: | |
| Legal | |
| - Copyright was assigned to the Python Software Foundation (PSF) and a | |
| PSF license (very similar to the CNRI license) was added. | |
| - The CNRI copyright notice was updated to include 2001. | |
| Core | |
| - After a public outcry, assignment to __debug__ is no longer illegal; | |
| instead, a warning is issued. It will become illegal in 2.2. | |
| - Fixed a core dump with "%#x" % 0, and changed the semantics so that | |
| "%#x" now always prepends "0x", even if the value is zero. | |
| - Fixed some nits in the bytecode compiler. | |
| - Fixed core dumps when calling certain kinds of non-functions. | |
| - Fixed various core dumps caused by reference count bugs. | |
| Build and Ports | |
| - Use INSTALL_SCRIPT to install script files. | |
| - New port: SCO Unixware 7, by Billy G. Allie. | |
| - Updated RISCOS port. | |
| - Updated BeOS port and notes. | |
| - Various other porting problems resolved. | |
| Library | |
| - The TERMIOS and SOCKET modules are now truly obsolete and | |
| unnecessary. Their symbols are incorporated in the termios and | |
| socket modules. | |
| - Fixed some 64-bit bugs in pickle, cPickle, and struct, and added | |
| better tests for pickling. | |
| - threading: make Condition.wait() robust against KeyboardInterrupt. | |
| - zipfile: add support to zipfile to support opening an archive | |
| represented by an open file rather than a file name. Fix bug where | |
| the archive was not properly closed. Fixed a bug in this bugfix | |
| where flush() was called for a read-only file. | |
| - imputil: added an uninstall() method to the ImportManager. | |
| - Canvas: fixed bugs in lower() and tkraise() methods. | |
| - SocketServer: API change (added overridable close_request() method) | |
| so that the TCP server can explicitly close the request. | |
| - pstats: Eric Raymond added a simple interactive statistics browser, | |
| invoked when the module is run as a script. | |
| - locale: fixed a problem in format(). | |
| - webbrowser: made it work when the BROWSER environment variable has a | |
| value like "/usr/bin/netscape". Made it auto-detect Konqueror for | |
| KDE 2. Fixed some other nits. | |
| - unittest: changes to allow using a different exception than | |
| AssertionError, and added a few more function aliases. Some other | |
| small changes. | |
| - urllib, urllib2: fixed redirect problems and a coupleof other nits. | |
| - asynchat: fixed a critical bug in asynchat that slipped through the | |
| 2.1b2 release. Fixed another rare bug. | |
| - Fix some unqualified except: clauses (always a bad code example). | |
| XML | |
| - pyexpat: new API get_version_string(). | |
| - Fixed some minidom bugs. | |
| Extensions | |
| - Fixed a core dump in _weakref. Removed the weakref.mapping() | |
| function (it adds nothing to the API). | |
| - Rationalized the use of header files in the readline module, to make | |
| it compile (albeit with some warnings) with the very recent readline | |
| 4.2, without breaking for earlier versions. | |
| - Hopefully fixed a buffering problem in linuxaudiodev. | |
| - Attempted a fix to make the OpenSSL support in the socket module | |
| work again with pre-0.9.5 versions of OpenSSL. | |
| Tests | |
| - Added a test case for asynchat and asyncore. | |
| - Removed coupling between tests where one test failing could break | |
| another. | |
| Tools | |
| - Ping added an interactive help browser to pydoc, fixed some nits | |
| in the rest of the pydoc code, and added some features to his | |
| inspect module. | |
| - An updated python-mode.el version 4.1 which integrates Ken | |
| Manheimer's pdbtrack.el. This makes debugging Python code via pdb | |
| much nicer in XEmacs and Emacs. When stepping through your program | |
| with pdb, in either the shell window or the *Python* window, the | |
| source file and line will be tracked by an arrow. Very cool! | |
| - IDLE: syntax warnings in interactive mode are changed into errors. | |
| - Some improvements to Tools/webchecker (ignore some more URL types, | |
| follow some more links). | |
| - Brought the Tools/compiler package up to date. | |
| What's New in Python 2.1 beta 2? | |
| ================================ | |
| (Unlisted are many fixed bugs, more documentation, etc.) | |
| Core language, builtins, and interpreter | |
| - The nested scopes work (enabled by "from __future__ import | |
| nested_scopes") is completed; in particular, the future now extends | |
| into code executed through exec, eval() and execfile(), and into the | |
| interactive interpreter. | |
| - When calling a base class method (e.g. BaseClass.__init__(self)), | |
| this is now allowed even if self is not strictly spoken a class | |
| instance (e.g. when using metaclasses or the Don Beaudry hook). | |
| - Slice objects are now comparable but not hashable; this prevents | |
| dict[:] from being accepted but meaningless. | |
| - Complex division is now calculated using less braindead algorithms. | |
| This doesn't change semantics except it's more likely to give useful | |
| results in extreme cases. Complex repr() now uses full precision | |
| like float repr(). | |
| - sgmllib.py now calls handle_decl() for simple <!...> declarations. | |
| - It is illegal to assign to the name __debug__, which is set when the | |
| interpreter starts. It is effectively a compile-time constant. | |
| - A warning will be issued if a global statement for a variable | |
| follows a use or assignment of that variable. | |
| Standard library | |
| - unittest.py, a unit testing framework by Steve Purcell (PyUNIT, | |
| inspired by JUnit), is now part of the standard library. You now | |
| have a choice of two testing frameworks: unittest requires you to | |
| write testcases as separate code, doctest gathers them from | |
| docstrings. Both approaches have their advantages and | |
| disadvantages. | |
| - A new module Tix was added, which wraps the Tix extension library | |
| for Tk. With that module, it is not necessary to statically link | |
| Tix with _tkinter, since Tix will be loaded with Tcl's "package | |
| require" command. See Demo/tix/. | |
| - tzparse.py is now obsolete. | |
| - In gzip.py, the seek() and tell() methods are removed -- they were | |
| non-functional anyway, and it's better if callers can test for their | |
| existence with hasattr(). | |
| Python/C API | |
| - PyDict_Next(): it is now safe to call PyDict_SetItem() with a key | |
| that's already in the dictionary during a PyDict_Next() iteration. | |
| This used to fail occasionally when a dictionary resize operation | |
| could be triggered that would rehash all the keys. All other | |
| modifications to the dictionary are still off-limits during a | |
| PyDict_Next() iteration! | |
| - New extended APIs related to passing compiler variables around. | |
| - New abstract APIs PyObject_IsInstance(), PyObject_IsSubclass() | |
| implement isinstance() and issubclass(). | |
| - Py_BuildValue() now has a "D" conversion to create a Python complex | |
| number from a Py_complex C value. | |
| - Extensions types which support weak references must now set the | |
| field allocated for the weak reference machinery to NULL themselves; | |
| this is done to avoid the cost of checking each object for having a | |
| weakly referencable type in PyObject_INIT(), since most types are | |
| not weakly referencable. | |
| - PyFrame_FastToLocals() and PyFrame_LocalsToFast() copy bindings for | |
| free variables and cell variables to and from the frame's f_locals. | |
| - Variants of several functions defined in pythonrun.h have been added | |
| to support the nested_scopes future statement. The variants all end | |
| in Flags and take an extra argument, a PyCompilerFlags *; examples: | |
| PyRun_AnyFileExFlags(), PyRun_InteractiveLoopFlags(). These | |
| variants may be removed in Python 2.2, when nested scopes are | |
| mandatory. | |
| Distutils | |
| - the sdist command now writes a PKG-INFO file, as described in PEP 241, | |
| into the release tree. | |
| - several enhancements to the bdist_wininst command from Thomas Heller | |
| (an uninstaller, more customization of the installer's display) | |
| - from Jack Jansen: added Mac-specific code to generate a dialog for | |
| users to specify the command-line (because providing a command-line with | |
| MacPython is awkward). Jack also made various fixes for the Mac | |
| and the Metrowerks compiler. | |
| - added 'platforms' and 'keywords' to the set of metadata that can be | |
| specified for a distribution. | |
| - applied patches from Jason Tishler to make the compiler class work with | |
| Cygwin. | |
| What's New in Python 2.1 beta 1? | |
| ================================ | |
| Core language, builtins, and interpreter | |
| - Following an outcry from the community about the amount of code | |
| broken by the nested scopes feature introduced in 2.1a2, we decided | |
| to make this feature optional, and to wait until Python 2.2 (or at | |
| least 6 months) to make it standard. The option can be enabled on a | |
| per-module basis by adding "from __future__ import nested_scopes" at | |
| the beginning of a module (before any other statements, but after | |
| comments and an optional docstring). See PEP 236 (Back to the | |
| __future__) for a description of the __future__ statement. PEP 227 | |
| (Statically Nested Scopes) has been updated to reflect this change, | |
| and to clarify the semantics in a number of endcases. | |
| - The nested scopes code, when enabled, has been hardened, and most | |
| bugs and memory leaks in it have been fixed. | |
| - Compile-time warnings are now generated for a number of conditions | |
| that will break or change in meaning when nested scopes are enabled: | |
| - Using "from...import *" or "exec" without in-clause in a function | |
| scope that also defines a lambda or nested function with one or | |
| more free (non-local) variables. The presence of the import* or | |
| bare exec makes it impossible for the compiler to determine the | |
| exact set of local variables in the outer scope, which makes it | |
| impossible to determine the bindings for free variables in the | |
| inner scope. To avoid the warning about import *, change it into | |
| an import of explicitly name object, or move the import* statement | |
| to the global scope; to avoid the warning about bare exec, use | |
| exec...in... (a good idea anyway -- there's a possibility that | |
| bare exec will be deprecated in the future). | |
| - Use of a global variable in a nested scope with the same name as a | |
| local variable in a surrounding scope. This will change in | |
| meaning with nested scopes: the name in the inner scope will | |
| reference the variable in the outer scope rather than the global | |
| of the same name. To avoid the warning, either rename the outer | |
| variable, or use a global statement in the inner function. | |
| - An optional object allocator has been included. This allocator is | |
| optimized for Python objects and should be faster and use less memory | |
| than the standard system allocator. It is not enabled by default | |
| because of possible thread safety problems. The allocator is only | |
| protected by the Python interpreter lock and it is possible that some | |
| extension modules require a thread safe allocator. The object | |
| allocator can be enabled by providing the "--with-pymalloc" option to | |
| configure. | |
| Standard library | |
| - pyexpat now detects the expat version if expat.h defines it. A | |
| number of additional handlers are provided, which are only available | |
| since expat 1.95. In addition, the methods SetParamEntityParsing and | |
| GetInputContext of Parser objects are available with 1.95.x | |
| only. Parser objects now provide the ordered_attributes and | |
| specified_attributes attributes. A new module expat.model was added, | |
| which offers a number of additional constants if 1.95.x is used. | |
| - xml.dom offers the new functions registerDOMImplementation and | |
| getDOMImplementation. | |
| - xml.dom.minidom offers a toprettyxml method. A number of DOM | |
| conformance issues have been resolved. In particular, Element now | |
| has a hasAttributes method, and the handling of namespaces was | |
| improved. | |
| - Ka-Ping Yee contributed two new modules: inspect.py, a module for | |
| getting information about live Python code, and pydoc.py, a module | |
| for interactively converting docstrings to HTML or text. | |
| Tools/scripts/pydoc, which is now automatically installed into | |
| <prefix>/bin, uses pydoc.py to display documentation; try running | |
| "pydoc -h" for instructions. "pydoc -g" pops up a small GUI that | |
| lets you browse the module docstrings using a web browser. | |
| - New library module difflib.py, primarily packaging the SequenceMatcher | |
| class at the heart of the popular ndiff.py file-comparison tool. | |
| - doctest.py (a framework for verifying Python code examples in docstrings) | |
| is now part of the std library. | |
| Windows changes | |
| - A new entry in the Start menu, "Module Docs", runs "pydoc -g" -- a | |
| small GUI that lets you browse the module docstrings using your | |
| default web browser. | |
| - Import is now case-sensitive. PEP 235 (Import on Case-Insensitive | |
| Platforms) is implemented. See | |
| http://python.sourceforge.net/peps/pep-0235.html | |
| for full details, especially the "Current Lower-Left Semantics" section. | |
| The new Windows import rules are simpler than before: | |
| A. If the PYTHONCASEOK environment variable exists, same as | |
| before: silently accept the first case-insensitive match of any | |
| kind; raise ImportError if none found. | |
| B. Else search sys.path for the first case-sensitive match; raise | |
| ImportError if none found. | |
| The same rules have been implemented on other platforms with case- | |
| insensitive but case-preserving filesystems too (including Cygwin, and | |
| several flavors of Macintosh operating systems). | |
| - winsound module: Under Win9x, winsound.Beep() now attempts to simulate | |
| what it's supposed to do (and does do under NT and 2000) via direct | |
| port manipulation. It's unknown whether this will work on all systems, | |
| but it does work on my Win98SE systems now and was known to be useless on | |
| all Win9x systems before. | |
| - Build: Subproject _test (effectively) renamed to _testcapi. | |
| New platforms | |
| - 2.1 should compile and run out of the box under MacOS X, even using HFS+. | |
| Thanks to Steven Majewski! | |
| - 2.1 should compile and run out of the box on Cygwin. Thanks to Jason | |
| Tishler! | |
| - 2.1 contains new files and patches for RISCOS, thanks to Dietmar | |
| Schwertberger! See RISCOS/README for more information -- it seems | |
| that because of the bizarre filename conventions on RISCOS, no port | |
| to that platform is easy. | |
| What's New in Python 2.1 alpha 2? | |
| ================================= | |
| Core language, builtins, and interpreter | |
| - Scopes nest. If a name is used in a function or class, but is not | |
| local, the definition in the nearest enclosing function scope will | |
| be used. One consequence of this change is that lambda statements | |
| could reference variables in the namespaces where the lambda is | |
| defined. In some unusual cases, this change will break code. | |
| In all previous version of Python, names were resolved in exactly | |
| three namespaces -- the local namespace, the global namespace, and | |
| the builtins namespace. According to this old definition, if a | |
| function A is defined within a function B, the names bound in B are | |
| not visible in A. The new rules make names bound in B visible in A, | |
| unless A contains a name binding that hides the binding in B. | |
| Section 4.1 of the reference manual describes the new scoping rules | |
| in detail. The test script in Lib/test/test_scope.py demonstrates | |
| some of the effects of the change. | |
| The new rules will cause existing code to break if it defines nested | |
| functions where an outer function has local variables with the same | |
| name as globals or builtins used by the inner function. Example: | |
| def munge(str): | |
| def helper(x): | |
| return str(x) | |
| if type(str) != type(''): | |
| str = helper(str) | |
| return str.strip() | |
| Under the old rules, the name str in helper() is bound to the | |
| built-in function str(). Under the new rules, it will be bound to | |
| the argument named str and an error will occur when helper() is | |
| called. | |
| - The compiler will report a SyntaxError if "from ... import *" occurs | |
| in a function or class scope. The language reference has documented | |
| that this case is illegal, but the compiler never checked for it. | |
| The recent introduction of nested scope makes the meaning of this | |
| form of name binding ambiguous. In a future release, the compiler | |
| may allow this form when there is no possibility of ambiguity. | |
| - repr(string) is easier to read, now using hex escapes instead of octal, | |
| and using \t, \n and \r instead of \011, \012 and \015 (respectively): | |
| >>> "\texample \r\n" + chr(0) + chr(255) | |
| '\texample \r\n\x00\xff' # in 2.1 | |
| '\011example \015\012\000\377' # in 2.0 | |
| - Functions are now compared and hashed by identity, not by value, since | |
| the func_code attribute is writable. | |
| - Weak references (PEP 205) have been added. This involves a few | |
| changes in the core, an extension module (_weakref), and a Python | |
| module (weakref). The weakref module is the public interface. It | |
| includes support for "explicit" weak references, proxy objects, and | |
| mappings with weakly held values. | |
| - A 'continue' statement can now appear in a try block within the body | |
| of a loop. It is still not possible to use continue in a finally | |
| clause. | |
| Standard library | |
| - mailbox.py now has a new class, PortableUnixMailbox which is | |
| identical to UnixMailbox but uses a more portable scheme for | |
| determining From_ separators. Also, the constructors for all the | |
| classes in this module have a new optional `factory' argument, which | |
| is a callable used when new message classes must be instantiated by | |
| the next() method. | |
| - random.py is now self-contained, and offers all the functionality of | |
| the now-deprecated whrandom.py. See the docs for details. random.py | |
| also supports new functions getstate() and setstate(), for saving | |
| and restoring the internal state of the generator; and jumpahead(n), | |
| for quickly forcing the internal state to be the same as if n calls to | |
| random() had been made. The latter is particularly useful for multi- | |
| threaded programs, creating one instance of the random.Random() class for | |
| each thread, then using .jumpahead() to force each instance to use a | |
| non-overlapping segment of the full period. | |
| - random.py's seed() function is new. For bit-for-bit compatibility with | |
| prior releases, use the whseed function instead. The new seed function | |
| addresses two problems: (1) The old function couldn't produce more than | |
| about 2**24 distinct internal states; the new one about 2**45 (the best | |
| that can be done in the Wichmann-Hill generator). (2) The old function | |
| sometimes produced identical internal states when passed distinct | |
| integers, and there was no simple way to predict when that would happen; | |
| the new one guarantees to produce distinct internal states for all | |
| arguments in [0, 27814431486576L). | |
| - The socket module now supports raw packets on Linux. The socket | |
| family is AF_PACKET. | |
| - test_capi.py is a start at running tests of the Python C API. The tests | |
| are implemented by the new Modules/_testmodule.c. | |
| - A new extension module, _symtable, provides provisional access to the | |
| internal symbol table used by the Python compiler. A higher-level | |
| interface will be added on top of _symtable in a future release. | |
| - Removed the obsolete soundex module. | |
| - xml.dom.minidom now uses the standard DOM exceptions. Node supports | |
| the isSameNode method; NamedNodeMap the get method. | |
| - xml.sax.expatreader supports the lexical handler property; it | |
| generates comment, startCDATA, and endCDATA events. | |
| Windows changes | |
| - Build procedure: the zlib project is built in a different way that | |
| ensures the zlib header files used can no longer get out of synch with | |
| the zlib binary used. See PCbuild\readme.txt for details. Your old | |
| zlib-related directories can be deleted; you'll need to download fresh | |
| source for zlib and unpack it into a new directory. | |
| - Build: New subproject _test for the benefit of test_capi.py (see above). | |
| - Build: New subproject _symtable, for new DLL _symtable.pyd (a nascent | |
| interface to some Python compiler internals). | |
| - Build: Subproject ucnhash is gone, since the code was folded into the | |
| unicodedata subproject. | |
| What's New in Python 2.1 alpha 1? | |
| ================================= | |
| Core language, builtins, and interpreter | |
| - There is a new Unicode companion to the PyObject_Str() API | |
| called PyObject_Unicode(). It behaves in the same way as the | |
| former, but assures that the returned value is a Unicode object | |
| (applying the usual coercion if necessary). | |
| - The comparison operators support "rich comparison overloading" (PEP | |
| 207). C extension types can provide a rich comparison function in | |
| the new tp_richcompare slot in the type object. The cmp() function | |
| and the C function PyObject_Compare() first try the new rich | |
| comparison operators before trying the old 3-way comparison. There | |
| is also a new C API PyObject_RichCompare() (which also falls back on | |
| the old 3-way comparison, but does not constrain the outcome of the | |
| rich comparison to a Boolean result). | |
| The rich comparison function takes two objects (at least one of | |
| which is guaranteed to have the type that provided the function) and | |
| an integer indicating the opcode, which can be Py_LT, Py_LE, Py_EQ, | |
| Py_NE, Py_GT, Py_GE (for <, <=, ==, !=, >, >=), and returns a Python | |
| object, which may be NotImplemented (in which case the tp_compare | |
| slot function is used as a fallback, if defined). | |
| Classes can overload individual comparison operators by defining one | |
| or more of the methods__lt__, __le__, __eq__, __ne__, __gt__, | |
| __ge__. There are no explicit "reflected argument" versions of | |
| these; instead, __lt__ and __gt__ are each other's reflection, | |
| likewise for__le__ and __ge__; __eq__ and __ne__ are their own | |
| reflection (similar at the C level). No other implications are | |
| made; in particular, Python does not assume that == is the Boolean | |
| inverse of !=, or that < is the Boolean inverse of >=. This makes | |
| it possible to define types with partial orderings. | |
| Classes or types that want to implement (in)equality tests but not | |
| the ordering operators (i.e. unordered types) should implement == | |
| and !=, and raise an error for the ordering operators. | |
| It is possible to define types whose rich comparison results are not | |
| Boolean; e.g. a matrix type might want to return a matrix of bits | |
| for A < B, giving elementwise comparisons. Such types should ensure | |
| that any interpretation of their value in a Boolean context raises | |
| an exception, e.g. by defining __nonzero__ (or the tp_nonzero slot | |
| at the C level) to always raise an exception. | |
| - Complex numbers use rich comparisons to define == and != but raise | |
| an exception for <, <=, > and >=. Unfortunately, this also means | |
| that cmp() of two complex numbers raises an exception when the two | |
| numbers differ. Since it is not mathematically meaningful to compare | |
| complex numbers except for equality, I hope that this doesn't break | |
| too much code. | |
| - The outcome of comparing non-numeric objects of different types is | |
| not defined by the language, other than that it's arbitrary but | |
| consistent (see the Reference Manual). An implementation detail changed | |
| in 2.1a1 such that None now compares less than any other object. Code | |
| relying on this new behavior (like code that relied on the previous | |
| behavior) does so at its own risk. | |
| - Functions and methods now support getting and setting arbitrarily | |
| named attributes (PEP 232). Functions have a new __dict__ | |
| (a.k.a. func_dict) which hold the function attributes. Methods get | |
| and set attributes on their underlying im_func. It is a TypeError | |
| to set an attribute on a bound method. | |
| - The xrange() object implementation has been improved so that | |
| xrange(sys.maxint) can be used on 64-bit platforms. There's still a | |
| limitation that in this case len(xrange(sys.maxint)) can't be | |
| calculated, but the common idiom "for i in xrange(sys.maxint)" will | |
| work fine as long as the index i doesn't actually reach 2**31. | |
| (Python uses regular ints for sequence and string indices; fixing | |
| that is much more work.) | |
| - Two changes to from...import: | |
| 1) "from M import X" now works even if (after loading module M) | |
| sys.modules['M'] is not a real module; it's basically a getattr() | |
| operation with AttributeError exceptions changed into ImportError. | |
| 2) "from M import *" now looks for M.__all__ to decide which names to | |
| import; if M.__all__ doesn't exist, it uses M.__dict__.keys() but | |
| filters out names starting with '_' as before. Whether or not | |
| __all__ exists, there's no restriction on the type of M. | |
| - File objects have a new method, xreadlines(). This is the fastest | |
| way to iterate over all lines in a file: | |
| for line in file.xreadlines(): | |
| ...do something to line... | |
| See the xreadlines module (mentioned below) for how to do this for | |
| other file-like objects. | |
| - Even if you don't use file.xreadlines(), you may expect a speedup on | |
| line-by-line input. The file.readline() method has been optimized | |
| quite a bit in platform-specific ways: on systems (like Linux) that | |
| support flockfile(), getc_unlocked(), and funlockfile(), those are | |
| used by default. On systems (like Windows) without getc_unlocked(), | |
| a complicated (but still thread-safe) method using fgets() is used by | |
| default. | |
| You can force use of the fgets() method by #define'ing | |
| USE_FGETS_IN_GETLINE at build time (it may be faster than | |
| getc_unlocked()). | |
| You can force fgets() not to be used by #define'ing | |
| DONT_USE_FGETS_IN_GETLINE (this is the first thing to try if std test | |
| test_bufio.py fails -- and let us know if it does!). | |
| - In addition, the fileinput module, while still slower than the other | |
| methods on most platforms, has been sped up too, by using | |
| file.readlines(sizehint). | |
| - Support for run-time warnings has been added, including a new | |
| command line option (-W) to specify the disposition of warnings. | |
| See the description of the warnings module below. | |
| - Extensive changes have been made to the coercion code. This mostly | |
| affects extension modules (which can now implement mixed-type | |
| numerical operators without having to use coercion), but | |
| occasionally, in boundary cases the coercion semantics have changed | |
| subtly. Since this was a terrible gray area of the language, this | |
| is considered an improvement. Also note that __rcmp__ is no longer | |
| supported -- instead of calling __rcmp__, __cmp__ is called with | |
| reflected arguments. | |
| - In connection with the coercion changes, a new built-in singleton | |
| object, NotImplemented is defined. This can be returned for | |
| operations that wish to indicate they are not implemented for a | |
| particular combination of arguments. From C, this is | |
| Py_NotImplemented. | |
| - The interpreter accepts now bytecode files on the command line even | |
| if they do not have a .pyc or .pyo extension. On Linux, after executing | |
| import imp,sys,string | |
| magic = string.join(["\\x%.2x" % ord(c) for c in imp.get_magic()],"") | |
| reg = ':pyc:M::%s::%s:' % (magic, sys.executable) | |
| open("/proc/sys/fs/binfmt_misc/register","wb").write(reg) | |
| any byte code file can be used as an executable (i.e. as an argument | |
| to execve(2)). | |
| - %[xXo] formats of negative Python longs now produce a sign | |
| character. In 1.6 and earlier, they never produced a sign, | |
| and raised an error if the value of the long was too large | |
| to fit in a Python int. In 2.0, they produced a sign if and | |
| only if too large to fit in an int. This was inconsistent | |
| across platforms (because the size of an int varies across | |
| platforms), and inconsistent with hex() and oct(). Example: | |
| >>> "%x" % -0x42L | |
| '-42' # in 2.1 | |
| 'ffffffbe' # in 2.0 and before, on 32-bit machines | |
| >>> hex(-0x42L) | |
| '-0x42L' # in all versions of Python | |
| The behavior of %d formats for negative Python longs remains | |
| the same as in 2.0 (although in 1.6 and before, they raised | |
| an error if the long didn't fit in a Python int). | |
| %u formats don't make sense for Python longs, but are allowed | |
| and treated the same as %d in 2.1. In 2.0, a negative long | |
| formatted via %u produced a sign if and only if too large to | |
| fit in an int. In 1.6 and earlier, a negative long formatted | |
| via %u raised an error if it was too big to fit in an int. | |
| - Dictionary objects have an odd new method, popitem(). This removes | |
| an arbitrary item from the dictionary and returns it (in the form of | |
| a (key, value) pair). This can be useful for algorithms that use a | |
| dictionary as a bag of "to do" items and repeatedly need to pick one | |
| item. Such algorithms normally end up running in quadratic time; | |
| using popitem() they can usually be made to run in linear time. | |
| Standard library | |
| - In the time module, the time argument to the functions strftime, | |
| localtime, gmtime, asctime and ctime is now optional, defaulting to | |
| the current time (in the local timezone). | |
| - The ftplib module now defaults to passive mode, which is deemed a | |
| more useful default given that clients are often inside firewalls | |
| these days. Note that this could break if ftplib is used to connect | |
| to a *server* that is inside a firewall, from outside; this is | |
| expected to be a very rare situation. To fix that, you can call | |
| ftp.set_pasv(0). | |
| - The module site now treats .pth files not only for path configuration, | |
| but also supports extensions to the initialization code: Lines starting | |
| with import are executed. | |
| - There's a new module, warnings, which implements a mechanism for | |
| issuing and filtering warnings. There are some new built-in | |
| exceptions that serve as warning categories, and a new command line | |
| option, -W, to control warnings (e.g. -Wi ignores all warnings, -We | |
| turns warnings into errors). warnings.warn(message[, category]) | |
| issues a warning message; this can also be called from C as | |
| PyErr_Warn(category, message). | |
| - A new module xreadlines was added. This exports a single factory | |
| function, xreadlines(). The intention is that this code is the | |
| absolutely fastest way to iterate over all lines in an open | |
| file(-like) object: | |
| import xreadlines | |
| for line in xreadlines.xreadlines(file): | |
| ...do something to line... | |
| This is equivalent to the previous the speed record holder using | |
| file.readlines(sizehint). Note that if file is a real file object | |
| (as opposed to a file-like object), this is equivalent: | |
| for line in file.xreadlines(): | |
| ...do something to line... | |
| - The bisect module has new functions bisect_left, insort_left, | |
| bisect_right and insort_right. The old names bisect and insort | |
| are now aliases for bisect_right and insort_right. XXX_right | |
| and XXX_left methods differ in what happens when the new element | |
| compares equal to one or more elements already in the list: the | |
| XXX_left methods insert to the left, the XXX_right methods to the | |
| right. Code that doesn't care where equal elements end up should | |
| continue to use the old, short names ("bisect" and "insort"). | |
| - The new curses.panel module wraps the panel library that forms part | |
| of SYSV curses and ncurses. Contributed by Thomas Gellekum. | |
| - The SocketServer module now sets the allow_reuse_address flag by | |
| default in the TCPServer class. | |
| - A new function, sys._getframe(), returns the stack frame pointer of | |
| the caller. This is intended only as a building block for | |
| higher-level mechanisms such as string interpolation. | |
| - The pyexpat module supports a number of new handlers, which are | |
| available only in expat 1.2. If invocation of a callback fails, it | |
| will report an additional frame in the traceback. Parser objects | |
| participate now in garbage collection. If expat reports an unknown | |
| encoding, pyexpat will try to use a Python codec; that works only | |
| for single-byte charsets. The parser type objects is exposed as | |
| XMLParserObject. | |
| - xml.dom now offers standard definitions for symbolic node type and | |
| exception code constants, and a hierarchy of DOM exceptions. minidom | |
| was adjusted to use them. | |
| - The conformance of xml.dom.minidom to the DOM specification was | |
| improved. It detects a number of additional error cases; the | |
| previous/next relationship works even when the tree is modified; | |
| Node supports the normalize() method; NamedNodeMap, DocumentType and | |
| DOMImplementation classes were added; Element supports the | |
| hasAttribute and hasAttributeNS methods; and Text supports the splitText | |
| method. | |
| Build issues | |
| - For Unix (and Unix-compatible) builds, configuration and building of | |
| extension modules is now greatly automated. Rather than having to | |
| edit the Modules/Setup file to indicate which modules should be | |
| built and where their include files and libraries are, a | |
| distutils-based setup.py script now takes care of building most | |
| extension modules. All extension modules built this way are built | |
| as shared libraries. Only a few modules that must be linked | |
| statically are still listed in the Setup file; you won't need to | |
| edit their configuration. | |
| - Python should now build out of the box on Cygwin. If it doesn't, | |
| mail to Jason Tishler (jlt63 at users.sourceforge.net). | |
| - Python now always uses its own (renamed) implementation of getopt() | |
| -- there's too much variation among C library getopt() | |
| implementations. | |
| - C++ compilers are better supported; the CXX macro is always set to a | |
| C++ compiler if one is found. | |
| Windows changes | |
| - select module: By default under Windows, a select() call | |
| can specify no more than 64 sockets. Python now boosts | |
| this Microsoft default to 512. If you need even more than | |
| that, see the MS docs (you'll need to #define FD_SETSIZE | |
| and recompile Python from source). | |
| - Support for Windows 3.1, DOS and OS/2 is gone. The Lib/dos-8x3 | |
| subdirectory is no more! | |
| What's New in Python 2.0? | |
| ========================= | |
| Below is a list of all relevant changes since release 1.6. Older | |
| changes are in the file HISTORY. If you are making the jump directly | |
| from Python 1.5.2 to 2.0, make sure to read the section for 1.6 in the | |
| HISTORY file! Many important changes listed there. | |
| Alternatively, a good overview of the changes between 1.5.2 and 2.0 is | |
| the document "What's New in Python 2.0" by Kuchling and Moshe Zadka: | |
| http://www.amk.ca/python/2.0/. | |
| --Guido van Rossum (home page: http://www.pythonlabs.com/~guido/) | |
| ====================================================================== | |
| What's new in 2.0 (since release candidate 1)? | |
| ============================================== | |
| Standard library | |
| - The copy_reg module was modified to clarify its intended use: to | |
| register pickle support for extension types, not for classes. | |
| pickle() will raise a TypeError if it is passed a class. | |
| - Fixed a bug in gettext's "normalize and expand" code that prevented | |
| it from finding an existing .mo file. | |
| - Restored support for HTTP/0.9 servers in httplib. | |
| - The math module was changed to stop raising OverflowError in case of | |
| underflow, and return 0 instead in underflow cases. Whether Python | |
| used to raise OverflowError in case of underflow was platform- | |
| dependent (it did when the platform math library set errno to ERANGE | |
| on underflow). | |
| - Fixed a bug in StringIO that occurred when the file position was not | |
| at the end of the file and write() was called with enough data to | |
| extend past the end of the file. | |
| - Fixed a bug that caused Tkinter error messages to get lost on | |
| Windows. The bug was fixed by replacing direct use of | |
| interp->result with Tcl_GetStringResult(interp). | |
| - Fixed bug in urllib2 that caused it to fail when it received an HTTP | |
| redirect response. | |
| - Several changes were made to distutils: Some debugging code was | |
| removed from util. Fixed the installer used when an external zip | |
| program (like WinZip) is not found; the source code for this | |
| installer is in Misc/distutils. check_lib() was modified to behave | |
| more like AC_CHECK_LIB by add other_libraries() as a parameter. The | |
| test for whether installed modules are on sys.path was changed to | |
| use both normcase() and normpath(). | |
| - Several minor bugs were fixed in the xml package (the minidom, | |
| pulldom, expatreader, and saxutils modules). | |
| - The regression test driver (regrtest.py) behavior when invoked with | |
| -l changed: It now reports a count of objects that are recognized as | |
| garbage but not freed by the garbage collector. | |
| - The regression test for the math module was changed to test | |
| exceptional behavior when the test is run in verbose mode. Python | |
| cannot yet guarantee consistent exception behavior across platforms, | |
| so the exception part of test_math is run only in verbose mode, and | |
| may fail on your platform. | |
| Internals | |
| - PyOS_CheckStack() has been disabled on Win64, where it caused | |
| test_sre to fail. | |
| Build issues | |
| - Changed compiler flags, so that gcc is always invoked with -Wall and | |
| -Wstrict-prototypes. Users compiling Python with GCC should see | |
| exactly one warning, except if they have passed configure the | |
| --with-pydebug flag. The expected warning is for getopt() in | |
| Modules/main.c. This warning will be fixed for Python 2.1. | |
| - Fixed configure to add -threads argument during linking on OSF1. | |
| Tools and other miscellany | |
| - The compiler in Tools/compiler was updated to support the new | |
| language features introduced in 2.0: extended print statement, list | |
| comprehensions, and augmented assignments. The new compiler should | |
| also be backwards compatible with Python 1.5.2; the compiler will | |
| always generate code for the version of the interpreter it runs | |
| under. | |
| What's new in 2.0 release candidate 1 (since beta 2)? | |
| ===================================================== | |
| What is release candidate 1? | |
| We believe that release candidate 1 will fix all known bugs that we | |
| intend to fix for the 2.0 final release. This release should be a bit | |
| more stable than the previous betas. We would like to see even more | |
| widespread testing before the final release, so we are producing this | |
| release candidate. The final release will be exactly the same unless | |
| any show-stopping (or brown bag) bugs are found by testers of the | |
| release candidate. | |
| All the changes since the last beta release are bug fixes or changes | |
| to support building Python for specific platforms. | |
| Core language, builtins, and interpreter | |
| - A bug that caused crashes when __coerce__ was used with augmented | |
| assignment, e.g. +=, was fixed. | |
| - Raise ZeroDivisionError when raising zero to a negative number, | |
| e.g. 0.0 ** -2.0. Note that math.pow is unrelated to the built-in | |
| power operator and the result of math.pow(0.0, -2.0) will vary by | |
| platform. On Linux, it raises a ValueError. | |
| - A bug in Unicode string interpolation was fixed that occasionally | |
| caused errors with formats including "%%". For example, the | |
| following expression "%% %s" % u"abc" no longer raises a TypeError. | |
| - Compilation of deeply nested expressions raises MemoryError instead | |
| of SyntaxError, e.g. eval("[" * 50 + "]" * 50). | |
| - In 2.0b2 on Windows, the interpreter wrote .pyc files in text mode, | |
| rendering them useless. They are now written in binary mode again. | |
| Standard library | |
| - Keyword arguments are now accepted for most pattern and match object | |
| methods in SRE, the standard regular expression engine. | |
| - In SRE, fixed error with negative lookahead and lookbehind that | |
| manifested itself as a runtime error in patterns like "(?<!abc)(def)". | |
| - Several bugs in the Unicode handling and error handling in _tkinter | |
| were fixed. | |
| - Fix memory management errors in Merge() and Tkapp_Call() routines. | |
| - Several changes were made to cStringIO to make it compatible with | |
| the file-like object interface and with StringIO. If operations are | |
| performed on a closed object, an exception is raised. The truncate | |
| method now accepts a position argument and readline accepts a size | |
| argument. | |
| - There were many changes made to the linuxaudiodev module and its | |
| test suite; as a result, a short, unexpected audio sample should now | |
| play when the regression test is run. | |
| Note that this module is named poorly, because it should work | |
| correctly on any platform that supports the Open Sound System | |
| (OSS). | |
| The module now raises exceptions when errors occur instead of | |
| crashing. It also defines the AFMT_A_LAW format (logarithmic A-law | |
| audio) and defines a getptr() method that calls the | |
| SNDCTL_DSP_GETxPTR ioctl defined in the OSS Programmer's Guide. | |
| - The library_version attribute, introduced in an earlier beta, was | |
| removed because it can not be supported with early versions of the C | |
| readline library, which provides no way to determine the version at | |
| compile-time. | |
| - The binascii module is now enabled on Win64. | |
| - tokenize.py no longer suffers "recursion depth" errors when parsing | |
| programs with very long string literals. | |
| Internals | |
| - Fixed several buffer overflow vulnerabilities in calculate_path(), | |
| which is called when the interpreter starts up to determine where | |
| the standard library is installed. These vulnerabilities affect all | |
| previous versions of Python and can be exploited by setting very | |
| long values for PYTHONHOME or argv[0]. The risk is greatest for a | |
| setuid Python script, although use of the wrapper in | |
| Misc/setuid-prog.c will eliminate the vulnerability. | |
| - Fixed garbage collection bugs in instance creation that were | |
| triggered when errors occurred during initialization. The solution, | |
| applied in cPickle and in PyInstance_New(), is to call | |
| PyObject_GC_Init() after the initialization of the object's | |
| container attributes is complete. | |
| - pyexpat adds definitions of PyModule_AddStringConstant and | |
| PyModule_AddObject if the Python version is less than 2.0, which | |
| provides compatibility with PyXML on Python 1.5.2. | |
| - If the platform has a bogus definition for LONG_BIT (the number of | |
| bits in a long), an error will be reported at compile time. | |
| - Fix bugs in _PyTuple_Resize() which caused hard-to-interpret garbage | |
| collection crashes and possibly other, unreported crashes. | |
| - Fixed a memory leak in _PyUnicode_Fini(). | |
| Build issues | |
| - configure now accepts a --with-suffix option that specifies the | |
| executable suffix. This is useful for builds on Cygwin and Mac OS | |
| X, for example. | |
| - The mmap.PAGESIZE constant is now initialized using sysconf when | |
| possible, which eliminates a dependency on -lucb for Reliant UNIX. | |
| - The md5 file should now compile on all platforms. | |
| - The select module now compiles on platforms that do not define | |
| POLLRDNORM and related constants. | |
| - Darwin (Mac OS X): Initial support for static builds on this | |
| platform. | |
| - BeOS: A number of changes were made to the build and installation | |
| process. ar-fake now operates on a directory of object files. | |
| dl_export.h is gone, and its macros now appear on the mwcc command | |
| line during build on PPC BeOS. | |
| - Platform directory in lib/python2.0 is "plat-beos5" (or | |
| "plat-beos4", if building on BeOS 4.5), rather than "plat-beos". | |
| - Cygwin: Support for shared libraries, Tkinter, and sockets. | |
| - SunOS 4.1.4_JL: Fix test for directory existence in configure. | |
| Tools and other miscellany | |
| - Removed debugging prints from main used with freeze. | |
| - IDLE auto-indent no longer crashes when it encounters Unicode | |
| characters. | |
| What's new in 2.0 beta 2 (since beta 1)? | |
| ======================================== | |
| Core language, builtins, and interpreter | |
| - Add support for unbounded ints in %d,i,u,x,X,o formats; for example | |
| "%d" % 2L**64 == "18446744073709551616". | |
| - Add -h and -V command line options to print the usage message and | |
| Python version number and exit immediately. | |
| - eval() and exec accept Unicode objects as code parameters. | |
| - getattr() and setattr() now also accept Unicode objects for the | |
| attribute name, which are converted to strings using the default | |
| encoding before lookup. | |
| - Multiplication on string and Unicode now does proper bounds | |
| checking; e.g. 'a' * 65536 * 65536 will raise ValueError, "repeated | |
| string is too long." | |
| - Better error message when continue is found in try statement in a | |
| loop. | |
| Standard library and extensions | |
| - socket module: the OpenSSL code now adds support for RAND_status() | |
| and EGD (Entropy Gathering Device). | |
| - array: reverse() method of array now works. buffer_info() now does | |
| argument checking; it still takes no arguments. | |
| - asyncore/asynchat: Included most recent version from Sam Rushing. | |
| - cgi: Accept '&' or ';' as separator characters when parsing form data. | |
| - CGIHTTPServer: Now works on Windows (and perhaps even Mac). | |
| - ConfigParser: When reading the file, options spelled in upper case | |
| letters are now correctly converted to lowercase. | |
| - copy: Copy Unicode objects atomically. | |
| - cPickle: Fail gracefully when copy_reg can't be imported. | |
| - cStringIO: Implemented readlines() method. | |
| - dbm: Add get() and setdefault() methods to dbm object. Add constant | |
| `library' to module that names the library used. Added doc strings | |
| and method names to error messages. Uses configure to determine | |
| which ndbm.h file to include; Berkeley DB's nbdm and GDBM's ndbm is | |
| now available options. | |
| - distutils: Update to version 0.9.3. | |
| - dl: Add several dl.RTLD_ constants. | |
| - fpectl: Now supported on FreeBSD. | |
| - gc: Add DEBUG_SAVEALL option. When enabled all garbage objects | |
| found by the collector will be saved in gc.garbage. This is useful | |
| for debugging a program that creates reference cycles. | |
| - httplib: Three changes: Restore support for set_debuglevel feature | |
| of HTTP class. Do not close socket on zero-length response. Do not | |
| crash when server sends invalid content-length header. | |
| - mailbox: Mailbox class conforms better to qmail specifications. | |
| - marshal: When reading a short, sign-extend on platforms where shorts | |
| are bigger than 16 bits. When reading a long, repair the unportable | |
| sign extension that was being done for 64-bit machines. (It assumed | |
| that signed right shift sign-extends.) | |
| - operator: Add contains(), invert(), __invert__() as aliases for | |
| __contains__(), inv(), and __inv__() respectively. | |
| - os: Add support for popen2() and popen3() on all platforms where | |
| fork() exists. (popen4() is still in the works.) | |
| - os: (Windows only:) Add startfile() function that acts like double- | |
| clicking on a file in Explorer (or passing the file name to the | |
| DOS "start" command). | |
| - os.path: (Windows, DOS:) Treat trailing colon correctly in | |
| os.path.join. os.path.join("a:", "b") yields "a:b". | |
| - pickle: Now raises ValueError when an invalid pickle that contains | |
| a non-string repr where a string repr was expected. This behavior | |
| matches cPickle. | |
| - posixfile: Remove broken __del__() method. | |
| - py_compile: support CR+LF line terminators in source file. | |
| - readline: Does not immediately exit when ^C is hit when readline and | |
| threads are configured. Adds definition of rl_library_version. (The | |
| latter addition requires GNU readline 2.2 or later.) | |
| - rfc822: Domain literals returned by AddrlistClass method | |
| getdomainliteral() are now properly wrapped in brackets. | |
| - site: sys.setdefaultencoding() should only be called in case the | |
| standard default encoding ("ascii") is changed. This saves quite a | |
| few cycles during startup since the first call to | |
| setdefaultencoding() will initialize the codec registry and the | |
| encodings package. | |
| - socket: Support for size hint in readlines() method of object returned | |
| by makefile(). | |
| - sre: Added experimental expand() method to match objects. Does not | |
| use buffer interface on Unicode strings. Does not hang if group id | |
| is followed by whitespace. | |
| - StringIO: Size hint in readlines() is now supported as documented. | |
| - struct: Check ranges for bytes and shorts. | |
| - urllib: Improved handling of win32 proxy settings. Fixed quote and | |
| quote_plus functions so that the always encode a comma. | |
| - Tkinter: Image objects are now guaranteed to have unique ids. Set | |
| event.delta to zero if Tk version doesn't support mousewheel. | |
| Removed some debugging prints. | |
| - UserList: now implements __contains__(). | |
| - webbrowser: On Windows, use os.startfile() instead of os.popen(), | |
| which works around a bug in Norton AntiVirus 2000 that leads directly | |
| to a Blue Screen freeze. | |
| - xml: New version detection code allows PyXML to override standard | |
| XML package if PyXML version is greater than 0.6.1. | |
| - xml.dom: DOM level 1 support for basic XML. Includes xml.dom.minidom | |
| (conventional DOM), and xml.dom.pulldom, which allows building the DOM | |
| tree only for nodes which are sufficiently interesting to a specific | |
| application. Does not provide the HTML-specific extensions. Still | |
| undocumented. | |
| - xml.sax: SAX 2 support for Python, including all the handler | |
| interfaces needed to process XML 1.0 compliant XML. Some | |
| documentation is already available. | |
| - pyexpat: Renamed to xml.parsers.expat since this is part of the new, | |
| packagized XML support. | |
| C API | |
| - Add three new convenience functions for module initialization -- | |
| PyModule_AddObject(), PyModule_AddIntConstant(), and | |
| PyModule_AddStringConstant(). | |
| - Cleaned up definition of NULL in C source code; all definitions were | |
| removed and add #error to Python.h if NULL isn't defined after | |
| #include of stdio.h. | |
| - Py_PROTO() macros that were removed in 2.0b1 have been restored for | |
| backwards compatibility (at the source level) with old extensions. | |
| - A wrapper API was added for signal() and sigaction(). Instead of | |
| either function, always use PyOS_getsig() to get a signal handler | |
| and PyOS_setsig() to set one. A new convenience typedef | |
| PyOS_sighandler_t is defined for the type of signal handlers. | |
| - Add PyString_AsStringAndSize() function that provides access to the | |
| internal data buffer and size of a string object -- or the default | |
| encoded version of a Unicode object. | |
| - PyString_Size() and PyString_AsString() accept Unicode objects. | |
| - The standard header <limits.h> is now included by Python.h (if it | |
| exists). INT_MAX and LONG_MAX will always be defined, even if | |
| <limits.h> is not available. | |
| - PyFloat_FromString takes a second argument, pend, that was | |
| effectively useless. It is now officially useless but preserved for | |
| backwards compatibility. If the pend argument is not NULL, *pend is | |
| set to NULL. | |
| - PyObject_GetAttr() and PyObject_SetAttr() now accept Unicode objects | |
| for the attribute name. See note on getattr() above. | |
| - A few bug fixes to argument processing for Unicode. | |
| PyArg_ParseTupleAndKeywords() now accepts "es#" and "es". | |
| PyArg_Parse() special cases "s#" for Unicode objects; it returns a | |
| pointer to the default encoded string data instead of to the raw | |
| UTF-16. | |
| - Py_BuildValue accepts B format (for bgen-generated code). | |
| Internals | |
| - On Unix, fix code for finding Python installation directory so that | |
| it works when argv[0] is a relative path. | |
| - Added a true unicode_internal_encode() function and fixed the | |
| unicode_internal_decode function() to support Unicode objects directly | |
| rather than by generating a copy of the object. | |
| - Several of the internal Unicode tables are much smaller now, and | |
| the source code should be much friendlier to weaker compilers. | |
| - In the garbage collector: Fixed bug in collection of tuples. Fixed | |
| bug that caused some instances to be removed from the container set | |
| while they were still live. Fixed parsing in gc.set_debug() for | |
| platforms where sizeof(long) > sizeof(int). | |
| - Fixed refcount problem in instance deallocation that only occurred | |
| when Py_REF_DEBUG was defined and Py_TRACE_REFS was not. | |
| - On Windows, getpythonregpath is now protected against null data in | |
| registry key. | |
| - On Unix, create .pyc/.pyo files with O_EXCL flag to avoid a race | |
| condition. | |
| Build and platform-specific issues | |
| - Better support of GNU Pth via --with-pth configure option. | |
| - Python/C API now properly exposed to dynamically-loaded extension | |
| modules on Reliant UNIX. | |
| - Changes for the benefit of SunOS 4.1.4 (really!). mmapmodule.c: | |
| Don't define MS_SYNC to be zero when it is undefined. Added missing | |
| prototypes in posixmodule.c. | |
| - Improved support for HP-UX build. Threads should now be correctly | |
| configured (on HP-UX 10.20 and 11.00). | |
| - Fix largefile support on older NetBSD systems and OpenBSD by adding | |
| define for TELL64. | |
| Tools and other miscellany | |
| - ftpmirror: Call to main() is wrapped in if __name__ == "__main__". | |
| - freeze: The modulefinder now works with 2.0 opcodes. | |
| - IDLE: | |
| Move hackery of sys.argv until after the Tk instance has been | |
| created, which allows the application-specific Tkinter | |
| initialization to be executed if present; also pass an explicit | |
| className parameter to the Tk() constructor. | |
| What's new in 2.0 beta 1? | |
| ========================= | |
| Source Incompatibilities | |
| ------------------------ | |
| None. Note that 1.6 introduced several incompatibilities with 1.5.2, | |
| such as single-argument append(), connect() and bind(), and changes to | |
| str(long) and repr(float). | |
| Binary Incompatibilities | |
| ------------------------ | |
| - Third party extensions built for Python 1.5.x or 1.6 cannot be used | |
| with Python 2.0; these extensions will have to be rebuilt for Python | |
| 2.0. | |
| - On Windows, attempting to import a third party extension built for | |
| Python 1.5.x or 1.6 results in an immediate crash; there's not much we | |
| can do about this. Check your PYTHONPATH environment variable! | |
| - Python bytecode files (*.pyc and *.pyo) are not compatible between | |
| releases. | |
| Overview of Changes Since 1.6 | |
| ----------------------------- | |
| There are many new modules (including brand new XML support through | |
| the xml package, and i18n support through the gettext module); a list | |
| of all new modules is included below. Lots of bugs have been fixed. | |
| The process for making major new changes to the language has changed | |
| since Python 1.6. Enhancements must now be documented by a Python | |
| Enhancement Proposal (PEP) before they can be accepted. | |
| There are several important syntax enhancements, described in more | |
| detail below: | |
| - Augmented assignment, e.g. x += 1 | |
| - List comprehensions, e.g. [x**2 for x in range(10)] | |
| - Extended import statement, e.g. import Module as Name | |
| - Extended print statement, e.g. print >> file, "Hello" | |
| Other important changes: | |
| - Optional collection of cyclical garbage | |
| Python Enhancement Proposal (PEP) | |
| --------------------------------- | |
| PEP stands for Python Enhancement Proposal. A PEP is a design | |
| document providing information to the Python community, or describing | |
| a new feature for Python. The PEP should provide a concise technical | |
| specification of the feature and a rationale for the feature. | |
| We intend PEPs to be the primary mechanisms for proposing new | |
| features, for collecting community input on an issue, and for | |
| documenting the design decisions that have gone into Python. The PEP | |
| author is responsible for building consensus within the community and | |
| documenting dissenting opinions. | |
| The PEPs are available at http://python.sourceforge.net/peps/. | |
| Augmented Assignment | |
| -------------------- | |
| This must have been the most-requested feature of the past years! | |
| Eleven new assignment operators were added: | |
| += -= *= /= %= **= <<= >>= &= ^= |= | |
| For example, | |
| A += B | |
| is similar to | |
| A = A + B | |
| except that A is evaluated only once (relevant when A is something | |
| like dict[index].attr). | |
| However, if A is a mutable object, A may be modified in place. Thus, | |
| if A is a number or a string, A += B has the same effect as A = A+B | |
| (except A is only evaluated once); but if a is a list, A += B has the | |
| same effect as A.extend(B)! | |
| Classes and built-in object types can override the new operators in | |
| order to implement the in-place behavior; the not-in-place behavior is | |
| used automatically as a fallback when an object doesn't implement the | |
| in-place behavior. For classes, the method name is derived from the | |
| method name for the corresponding not-in-place operator by inserting | |
| an 'i' in front of the name, e.g. __iadd__ implements in-place | |
| __add__. | |
| Augmented assignment was implemented by Thomas Wouters. | |
| List Comprehensions | |
| ------------------- | |
| This is a flexible new notation for lists whose elements are computed | |
| from another list (or lists). The simplest form is: | |
| [<expression> for <variable> in <sequence>] | |
| For example, [i**2 for i in range(4)] yields the list [0, 1, 4, 9]. | |
| This is more efficient than a for loop with a list.append() call. | |
| You can also add a condition: | |
| [<expression> for <variable> in <sequence> if <condition>] | |
| For example, [w for w in words if w == w.lower()] would yield the list | |
| of words that contain no uppercase characters. This is more efficient | |
| than a for loop with an if statement and a list.append() call. | |
| You can also have nested for loops and more than one 'if' clause. For | |
| example, here's a function that flattens a sequence of sequences:: | |
| def flatten(seq): | |
| return [x for subseq in seq for x in subseq] | |
| flatten([[0], [1,2,3], [4,5], [6,7,8,9], []]) | |
| This prints | |
| [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] | |
| List comprehensions originated as a patch set from Greg Ewing; Skip | |
| Montanaro and Thomas Wouters also contributed. Described by PEP 202. | |
| Extended Import Statement | |
| ------------------------- | |
| Many people have asked for a way to import a module under a different | |
| name. This can be accomplished like this: | |
| import foo | |
| bar = foo | |
| del foo | |
| but this common idiom gets old quickly. A simple extension of the | |
| import statement now allows this to be written as follows: | |
| import foo as bar | |
| There's also a variant for 'from ... import': | |
| from foo import bar as spam | |
| This also works with packages; e.g. you can write this: | |
| import test.regrtest as regrtest | |
| Note that 'as' is not a new keyword -- it is recognized only in this | |
| context (this is only possible because the syntax for the import | |
| statement doesn't involve expressions). | |
| Implemented by Thomas Wouters. Described by PEP 221. | |
| Extended Print Statement | |
| ------------------------ | |
| Easily the most controversial new feature, this extension to the print | |
| statement adds an option to make the output go to a different file | |
| than the default sys.stdout. | |
| For example, to write an error message to sys.stderr, you can now | |
| write: | |
| print >> sys.stderr, "Error: bad dog!" | |
| As a special feature, if the expression used to indicate the file | |
| evaluates to None, the current value of sys.stdout is used. Thus: | |
| print >> None, "Hello world" | |
| is equivalent to | |
| print "Hello world" | |
| Design and implementation by Barry Warsaw. Described by PEP 214. | |
| Optional Collection of Cyclical Garbage | |
| --------------------------------------- | |
| Python is now equipped with a garbage collector that can hunt down | |
| cyclical references between Python objects. It's no replacement for | |
| reference counting; in fact, it depends on the reference counts being | |
| correct, and decides that a set of objects belong to a cycle if all | |
| their reference counts can be accounted for from their references to | |
| each other. This devious scheme was first proposed by Eric Tiedemann, | |
| and brought to implementation by Neil Schemenauer. | |
| There's a module "gc" that lets you control some parameters of the | |
| garbage collection. There's also an option to the configure script | |
| that lets you enable or disable the garbage collection. In 2.0b1, | |
| it's on by default, so that we (hopefully) can collect decent user | |
| experience with this new feature. There are some questions about its | |
| performance. If it proves to be too much of a problem, we'll turn it | |
| off by default in the final 2.0 release. | |
| Smaller Changes | |
| --------------- | |
| A new function zip() was added. zip(seq1, seq2, ...) is equivalent to | |
| map(None, seq1, seq2, ...) when the sequences have the same length; | |
| i.e. zip([1,2,3], [10,20,30]) returns [(1,10), (2,20), (3,30)]. When | |
| the lists are not all the same length, the shortest list wins: | |
| zip([1,2,3], [10,20]) returns [(1,10), (2,20)]. See PEP 201. | |
| sys.version_info is a tuple (major, minor, micro, level, serial). | |
| Dictionaries have an odd new method, setdefault(key, default). | |
| dict.setdefault(key, default) returns dict[key] if it exists; if not, | |
| it sets dict[key] to default and returns that value. Thus: | |
| dict.setdefault(key, []).append(item) | |
| does the same work as this common idiom: | |
| if not dict.has_key(key): | |
| dict[key] = [] | |
| dict[key].append(item) | |
| There are two new variants of SyntaxError that are raised for | |
| indentation-related errors: IndentationError and TabError. | |
| Changed \x to consume exactly two hex digits; see PEP 223. Added \U | |
| escape that consumes exactly eight hex digits. | |
| The limits on the size of expressions and file in Python source code | |
| have been raised from 2**16 to 2**32. Previous versions of Python | |
| were limited because the maximum argument size the Python VM accepted | |
| was 2**16. This limited the size of object constructor expressions, | |
| e.g. [1,2,3] or {'a':1, 'b':2}, and the size of source files. This | |
| limit was raised thanks to a patch by Charles Waldman that effectively | |
| fixes the problem. It is now much more likely that you will be | |
| limited by available memory than by an arbitrary limit in Python. | |
| The interpreter's maximum recursion depth can be modified by Python | |
| programs using sys.getrecursionlimit and sys.setrecursionlimit. This | |
| limit is the maximum number of recursive calls that can be made by | |
| Python code. The limit exists to prevent infinite recursion from | |
| overflowing the C stack and causing a core dump. The default value is | |
| 1000. The maximum safe value for a particular platform can be found | |
| by running Tools/scripts/find_recursionlimit.py. | |
| New Modules and Packages | |
| ------------------------ | |
| atexit - for registering functions to be called when Python exits. | |
| imputil - Greg Stein's alternative API for writing custom import | |
| hooks. | |
| pyexpat - an interface to the Expat XML parser, contributed by Paul | |
| Prescod. | |
| xml - a new package with XML support code organized (so far) in three | |
| subpackages: xml.dom, xml.sax, and xml.parsers. Describing these | |
| would fill a volume. There's a special feature whereby a | |
| user-installed package named _xmlplus overrides the standard | |
| xmlpackage; this is intended to give the XML SIG a hook to distribute | |
| backwards-compatible updates to the standard xml package. | |
| webbrowser - a platform-independent API to launch a web browser. | |
| Changed Modules | |
| --------------- | |
| array -- new methods for array objects: count, extend, index, pop, and | |
| remove | |
| binascii -- new functions b2a_hex and a2b_hex that convert between | |
| binary data and its hex representation | |
| calendar -- Many new functions that support features including control | |
| over which day of the week is the first day, returning strings instead | |
| of printing them. Also new symbolic constants for days of week, | |
| e.g. MONDAY, ..., SUNDAY. | |
| cgi -- FieldStorage objects have a getvalue method that works like a | |
| dictionary's get method and returns the value attribute of the object. | |
| ConfigParser -- The parser object has new methods has_option, | |
| remove_section, remove_option, set, and write. They allow the module | |
| to be used for writing config files as well as reading them. | |
| ftplib -- ntransfercmd(), transfercmd(), and retrbinary() all now | |
| optionally support the RFC 959 REST command. | |
| gzip -- readline and readlines now accept optional size arguments | |
| httplib -- New interfaces and support for HTTP/1.1 by Greg Stein. See | |
| the module doc strings for details. | |
| locale -- implement getdefaultlocale for Win32 and Macintosh | |
| marshal -- no longer dumps core when marshaling deeply nested or | |
| recursive data structures | |
| os -- new functions isatty, seteuid, setegid, setreuid, setregid | |
| os/popen2 -- popen2/popen3/popen4 support under Windows. popen2/popen3 | |
| support under Unix. | |
| os/pty -- support for openpty and forkpty | |
| os.path -- fix semantics of os.path.commonprefix | |
| smtplib -- support for sending very long messages | |
| socket -- new function getfqdn() | |
| readline -- new functions to read, write and truncate history files. | |
| The readline section of the library reference manual contains an | |
| example. | |
| select -- add interface to poll system call | |
| shutil -- new copyfileobj function | |
| SimpleHTTPServer, CGIHTTPServer -- Fix problems with buffering in the | |
| HTTP server. | |
| Tkinter -- optimization of function flatten | |
| urllib -- scans environment variables for proxy configuration, | |
| e.g. http_proxy. | |
| whichdb -- recognizes dumbdbm format | |
| Obsolete Modules | |
| ---------------- | |
| None. However note that 1.6 made a whole slew of modules obsolete: | |
| stdwin, soundex, cml, cmpcache, dircache, dump, find, grep, packmail, | |
| poly, zmod, strop, util, whatsound. | |
| Changed, New, Obsolete Tools | |
| ---------------------------- | |
| None. | |
| C-level Changes | |
| --------------- | |
| Several cleanup jobs were carried out throughout the source code. | |
| All C code was converted to ANSI C; we got rid of all uses of the | |
| Py_PROTO() macro, which makes the header files a lot more readable. | |
| Most of the portability hacks were moved to a new header file, | |
| pyport.h; several other new header files were added and some old | |
| header files were removed, in an attempt to create a more rational set | |
| of header files. (Few of these ever need to be included explicitly; | |
| they are all included by Python.h.) | |
| Trent Mick ensured portability to 64-bit platforms, under both Linux | |
| and Win64, especially for the new Intel Itanium processor. Mick also | |
| added large file support for Linux64 and Win64. | |
| The C APIs to return an object's size have been update to consistently | |
| use the form PyXXX_Size, e.g. PySequence_Size and PyDict_Size. In | |
| previous versions, the abstract interfaces used PyXXX_Length and the | |
| concrete interfaces used PyXXX_Size. The old names, | |
| e.g. PyObject_Length, are still available for backwards compatibility | |
| at the API level, but are deprecated. | |
| The PyOS_CheckStack function has been implemented on Windows by | |
| Fredrik Lundh. It prevents Python from failing with a stack overflow | |
| on Windows. | |
| The GC changes resulted in creation of two new slots on object, | |
| tp_traverse and tp_clear. The augmented assignment changes result in | |
| the creation of a new slot for each in-place operator. | |
| The GC API creates new requirements for container types implemented in | |
| C extension modules. See Include/objimpl.h for details. | |
| PyErr_Format has been updated to automatically calculate the size of | |
| the buffer needed to hold the formatted result string. This change | |
| prevents crashes caused by programmer error. | |
| New C API calls: PyObject_AsFileDescriptor, PyErr_WriteUnraisable. | |
| PyRun_AnyFileEx, PyRun_SimpleFileEx, PyRun_FileEx -- New functions | |
| that are the same as their non-Ex counterparts except they take an | |
| extra flag argument that tells them to close the file when done. | |
| XXX There were other API changes that should be fleshed out here. | |
| Windows Changes | |
| --------------- | |
| New popen2/popen3/peopen4 in os module (see Changed Modules above). | |
| os.popen is much more usable on Windows 95 and 98. See Microsoft | |
| Knowledge Base article Q150956. The Win9x workaround described there | |
| is implemented by the new w9xpopen.exe helper in the root of your | |
| Python installation. Note that Python uses this internally; it is not | |
| a standalone program. | |
| Administrator privileges are no longer required to install Python | |
| on Windows NT or Windows 2000. If you have administrator privileges, | |
| Python's registry info will be written under HKEY_LOCAL_MACHINE. | |
| Otherwise the installer backs off to writing Python's registry info | |
| under HKEY_CURRENT_USER. The latter is sufficient for all "normal" | |
| uses of Python, but will prevent some advanced uses from working | |
| (for example, running a Python script as an NT service, or possibly | |
| from CGI). | |
| [This was new in 1.6] The installer no longer runs a separate Tcl/Tk | |
| installer; instead, it installs the needed Tcl/Tk files directly in the | |
| Python directory. If you already have a Tcl/Tk installation, this | |
| wastes some disk space (about 4 Megs) but avoids problems with | |
| conflicting Tcl/Tk installations, and makes it much easier for Python | |
| to ensure that Tcl/Tk can find all its files. | |
| [This was new in 1.6] The Windows installer now installs by default in | |
| \Python20\ on the default volume, instead of \Program Files\Python-2.0\. | |
| Updates to the changes between 1.5.2 and 1.6 | |
| -------------------------------------------- | |
| The 1.6 NEWS file can't be changed after the release is done, so here | |
| is some late-breaking news: | |
| New APIs in locale.py: normalize(), getdefaultlocale(), resetlocale(), | |
| and changes to getlocale() and setlocale(). | |
| The new module is now enabled per default. | |
| It is not true that the encodings codecs cannot be used for normal | |
| strings: the string.encode() (which is also present on 8-bit strings | |
| !) allows using them for 8-bit strings too, e.g. to convert files from | |
| cp1252 (Windows) to latin-1 or vice-versa. | |
| Japanese codecs are available from Tamito KAJIYAMA: | |
| http://pseudo.grad.sccs.chukyo-u.ac.jp/~kajiyama/python/ | |
| ====================================================================== | |
| ======================================= | |
| ==> Release 1.6 (September 5, 2000) <== | |
| ======================================= | |
| What's new in release 1.6? | |
| ========================== | |
| Below is a list of all relevant changes since release 1.5.2. | |
| Source Incompatibilities | |
| ------------------------ | |
| Several small incompatible library changes may trip you up: | |
| - The append() method for lists can no longer be invoked with more | |
| than one argument. This used to append a single tuple made out of | |
| all arguments, but was undocumented. To append a tuple, use | |
| e.g. l.append((a, b, c)). | |
| - The connect(), connect_ex() and bind() methods for sockets require | |
| exactly one argument. Previously, you could call s.connect(host, | |
| port), but this was undocumented. You must now write | |
| s.connect((host, port)). | |
| - The str() and repr() functions are now different more often. For | |
| long integers, str() no longer appends a 'L'. Thus, str(1L) == '1', | |
| which used to be '1L'; repr(1L) is unchanged and still returns '1L'. | |
| For floats, repr() now gives 17 digits of precision, to ensure no | |
| precision is lost (on all current hardware). | |
| - The -X option is gone. Built-in exceptions are now always | |
| classes. Many more library modules also have been converted to | |
| class-based exceptions. | |
| Binary Incompatibilities | |
| ------------------------ | |
| - Third party extensions built for Python 1.5.x cannot be used with | |
| Python 1.6; these extensions will have to be rebuilt for Python 1.6. | |
| - On Windows, attempting to import a third party extension built for | |
| Python 1.5.x results in an immediate crash; there's not much we can do | |
| about this. Check your PYTHONPATH environment variable! | |
| Overview of Changes since 1.5.2 | |
| ------------------------------- | |
| For this overview, I have borrowed from the document "What's New in | |
| Python 2.0" by Andrew Kuchling and Moshe Zadka: | |
| http://www.amk.ca/python/2.0/ . | |
| There are lots of new modules and lots of bugs have been fixed. A | |
| list of all new modules is included below. | |
| Probably the most pervasive change is the addition of Unicode support. | |
| We've added a new fundamental datatype, the Unicode string, a new | |
| built-in function unicode(), and numerous C APIs to deal with Unicode | |
| and encodings. See the file Misc/unicode.txt for details, or | |
| http://starship.python.net/crew/lemburg/unicode-proposal.txt. | |
| Two other big changes, related to the Unicode support, are the | |
| addition of string methods and (yet another) new regular expression | |
| engine. | |
| - String methods mean that you can now say s.lower() etc. instead of | |
| importing the string module and saying string.lower(s) etc. One | |
| peculiarity is that the equivalent of string.join(sequence, | |
| delimiter) is delimiter.join(sequence). Use " ".join(sequence) for | |
| the effect of string.join(sequence); to make this more readable, try | |
| space=" " first. Note that the maxsplit argument defaults in | |
| split() and replace() have changed from 0 to -1. | |
| - The new regular expression engine, SRE by Fredrik Lundh, is fully | |
| backwards compatible with the old engine, and is in fact invoked | |
| using the same interface (the "re" module). You can explicitly | |
| invoke the old engine by import pre, or the SRE engine by importing | |
| sre. SRE is faster than pre, and supports Unicode (which was the | |
| main reason to put effort in yet another new regular expression | |
| engine -- this is at least the fourth!). | |
| Other Changes | |
| ------------- | |
| Other changes that won't break code but are nice to know about: | |
| Deleting objects is now safe even for deeply nested data structures. | |
| Long/int unifications: long integers can be used in seek() calls, as | |
| slice indexes. | |
| String formatting (s % args) has a new formatting option, '%r', which | |
| acts like '%s' but inserts repr(arg) instead of str(arg). (Not yet in | |
| alpha 1.) | |
| Greg Ward's "distutils" package is included: this will make | |
| installing, building and distributing third party packages much | |
| simpler. | |
| There's now special syntax that you can use instead of the apply() | |
| function. f(*args, **kwds) is equivalent to apply(f, args, kwds). | |
| You can also use variations f(a1, a2, *args, **kwds) and you can leave | |
| one or the other out: f(*args), f(**kwds). | |
| The built-ins int() and long() take an optional second argument to | |
| indicate the conversion base -- of course only if the first argument | |
| is a string. This makes string.atoi() and string.atol() obsolete. | |
| (string.atof() was already obsolete). | |
| When a local variable is known to the compiler but undefined when | |
| used, a new exception UnboundLocalError is raised. This is a class | |
| derived from NameError so code catching NameError should still work. | |
| The purpose is to provide better diagnostics in the following example: | |
| x = 1 | |
| def f(): | |
| print x | |
| x = x+1 | |
| This used to raise a NameError on the print statement, which confused | |
| even experienced Python programmers (especially if there are several | |
| hundreds of lines of code between the reference and the assignment to | |
| x :-). | |
| You can now override the 'in' operator by defining a __contains__ | |
| method. Note that it has its arguments backwards: x in a causes | |
| a.__contains__(x) to be called. That's why the name isn't __in__. | |
| The exception AttributeError will have a more friendly error message, | |
| e.g.: <code>'Spam' instance has no attribute 'eggs'</code>. This may | |
| <b>break code</b> that expects the message to be exactly the attribute | |
| name. | |
| New Modules in 1.6 | |
| ------------------ | |
| UserString - base class for deriving from the string type. | |
| distutils - tools for distributing Python modules. | |
| robotparser - parse a robots.txt file, for writing web spiders. | |
| (Moved from Tools/webchecker/.) | |
| linuxaudiodev - audio for Linux. | |
| mmap - treat a file as a memory buffer. (Windows and Unix.) | |
| sre - regular expressions (fast, supports unicode). Currently, this | |
| code is very rough. Eventually, the re module will be reimplemented | |
| using sre (without changes to the re API). | |
| filecmp - supersedes the old cmp.py and dircmp.py modules. | |
| tabnanny - check Python sources for tab-width dependence. (Moved from | |
| Tools/scripts/.) | |
| urllib2 - new and improved but incompatible version of urllib (still | |
| experimental). | |
| zipfile - read and write zip archives. | |
| codecs - support for Unicode encoders/decoders. | |
| unicodedata - provides access to the Unicode 3.0 database. | |
| _winreg - Windows registry access. | |
| encodings - package which provides a large set of standard codecs -- | |
| currently only for the new Unicode support. It has a drop-in extension | |
| mechanism which allows you to add new codecs by simply copying them | |
| into the encodings package directory. Asian codec support will | |
| probably be made available as separate distribution package built upon | |
| this technique and the new distutils package. | |
| Changed Modules | |
| --------------- | |
| readline, ConfigParser, cgi, calendar, posix, readline, xmllib, aifc, | |
| chunk, wave, random, shelve, nntplib - minor enhancements. | |
| socket, httplib, urllib - optional OpenSSL support (Unix only). | |
| _tkinter - support for 8.0 up to 8.3. Support for versions older than | |
| 8.0 has been dropped. | |
| string - most of this module is deprecated now that strings have | |
| methods. This no longer uses the built-in strop module, but takes | |
| advantage of the new string methods to provide transparent support for | |
| both Unicode and ordinary strings. | |
| Changes on Windows | |
| ------------------ | |
| The installer no longer runs a separate Tcl/Tk installer; instead, it | |
| installs the needed Tcl/Tk files directly in the Python directory. If | |
| you already have a Tcl/Tk installation, this wastes some disk space | |
| (about 4 Megs) but avoids problems with conflincting Tcl/Tk | |
| installations, and makes it much easier for Python to ensure that | |
| Tcl/Tk can find all its files. Note: the alpha installers don't | |
| include the documentation. | |
| The Windows installer now installs by default in \Python16\ on the | |
| default volume, instead of \Program Files\Python-1.6\. | |
| Changed Tools | |
| ------------- | |
| IDLE - complete overhaul. See the <a href="../idle/">IDLE home | |
| page</a> for more information. (Python 1.6 alpha 1 will come with | |
| IDLE 0.6.) | |
| Tools/i18n/pygettext.py - Python equivalent of xgettext(1). A message | |
| text extraction tool used for internationalizing applications written | |
| in Python. | |
| Obsolete Modules | |
| ---------------- | |
| stdwin and everything that uses it. (Get Python 1.5.2 if you need | |
| it. :-) | |
| soundex. (Skip Montanaro has a version in Python but it won't be | |
| included in the Python release.) | |
| cmp, cmpcache, dircmp. (Replaced by filecmp.) | |
| dump. (Use pickle.) | |
| find. (Easily coded using os.walk().) | |
| grep. (Not very useful as a library module.) | |
| packmail. (No longer has any use.) | |
| poly, zmod. (These were poor examples at best.) | |
| strop. (No longer needed by the string module.) | |
| util. (This functionality was long ago built in elsewhere). | |
| whatsound. (Use sndhdr.) | |
| Detailed Changes from 1.6b1 to 1.6 | |
| ---------------------------------- | |
| - Slight changes to the CNRI license. A copyright notice has been | |
| added; the requirement to indicate the nature of modifications now | |
| applies when making a derivative work available "to others" instead of | |
| just "to the public"; the version and date are updated. The new | |
| license has a new handle. | |
| - Added the Tools/compiler package. This is a project led by Jeremy | |
| Hylton to write the Python bytecode generator in Python. | |
| - The function math.rint() is removed. | |
| - In Python.h, "#define _GNU_SOURCE 1" was added. | |
| - Version 0.9.1 of Greg Ward's distutils is included (instead of | |
| version 0.9). | |
| - A new version of SRE is included. It is more stable, and more | |
| compatible with the old RE module. Non-matching ranges are indicated | |
| by -1, not None. (The documentation said None, but the PRE | |
| implementation used -1; changing to None would break existing code.) | |
| - The winreg module has been renamed to _winreg. (There are plans for | |
| a higher-level API called winreg, but this has not yet materialized in | |
| a form that is acceptable to the experts.) | |
| - The _locale module is enabled by default. | |
| - Fixed the configuration line for the _curses module. | |
| - A few crashes have been fixed, notably <file>.writelines() with a | |
| list containing non-string objects would crash, and there were | |
| situations where a lost SyntaxError could dump core. | |
| - The <list>.extend() method now accepts an arbitrary sequence | |
| argument. | |
| - If __str__() or __repr__() returns a Unicode object, this is | |
| converted to an 8-bit string. | |
| - Unicode string comparisons is no longer aware of UTF-16 | |
| encoding peculiarities; it's a straight 16-bit compare. | |
| - The Windows installer now installs the LICENSE file and no longer | |
| registers the Python DLL version in the registry (this is no longer | |
| needed). It now uses Tcl/Tk 8.3.2. | |
| - A few portability problems have been fixed, in particular a | |
| compilation error involving socklen_t. | |
| - The PC configuration is slightly friendlier to non-Microsoft | |
| compilers. | |
| ====================================================================== | |
| ====================================== | |
| ==> Release 1.5.2 (April 13, 1999) <== | |
| ====================================== | |
| From 1.5.2c1 to 1.5.2 (final) | |
| ============================= | |
| Tue Apr 13 15:44:49 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * PCbuild/python15.wse: Bump version to 1.5.2 (final) | |
| * PCbuild/python15.dsp: Added shamodule.c | |
| * PC/config.c: Added sha module! | |
| * README, Include/patchlevel.h: Prepare for final release. | |
| * Misc/ACKS: | |
| More (Cameron Laird is honorary; the others are 1.5.2c1 testers). | |
| * Python/thread_solaris.h: | |
| While I can't really test this thoroughly, Pat Knight and the Solaris | |
| man pages suggest that the proper thing to do is to add THR_NEW_LWP to | |
| the flags on thr_create(), and that there really isn't a downside, so | |
| I'll do that. | |
| * Misc/ACKS: | |
| Bunch of new names who helped iron out the last wrinkles of 1.5.2. | |
| * PC/python_nt.rc: | |
| Bump the myusterious M$ version number from 1,5,2,1 to 1,5,2,3. | |
| (I can't even display this on NT, maybe Win/98 can?) | |
| * Lib/pstats.py: | |
| Fix mysterious references to jprofile that were in the source since | |
| its creation. I'm assuming these were once valid references to "Jim | |
| Roskind's profile"... | |
| * Lib/Attic/threading_api.py: | |
| Removed; since long subsumed in Doc/lib/libthreading.tex | |
| * Modules/socketmodule.c: | |
| Put back __osf__ support for gethostbyname_r(); the real bug was that | |
| it was being used even without threads. This of course might be an | |
| all-platform problem so now we only use the _r variant when we are | |
| using threads. | |
| Mon Apr 12 22:51:20 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Modules/cPickle.c: | |
| Fix accidentally reversed NULL test in load_mark(). Suggested by | |
| Tamito Kajiyama. (This caused a bug only on platforms where malloc(0) | |
| returns NULL.) | |
| * README: | |
| Add note about popen2 problem on Linux noticed by Pablo Bleyer. | |
| * README: Add note about -D_REENTRANT for HP-UX 10.20. | |
| * Modules/Makefile.pre.in: 'clean' target should remove hassignal. | |
| * PC/Attic/vc40.mak, PC/readme.txt: | |
| Remove all VC++ info (except VC 1.5) from readme.txt; | |
| remove the VC++ 4.0 project file; remove the unused _tkinter extern defs. | |
| * README: Clarify PC build instructions (point to PCbuild). | |
| * Modules/zlibmodule.c: Cast added by Jack Jansen (for Mac port). | |
| * Lib/plat-sunos5/CDIO.py, Lib/plat-linux2/CDROM.py: | |
| Forgot to add this file. CDROM device parameters. | |
| * Lib/gzip.py: Two different changes. | |
| 1. Jack Jansen reports that on the Mac, the time may be negative, and | |
| solves this by adding a write32u() function that writes an unsigned | |
| long. | |
| 2. On 64-bit platforms the CRC comparison fails; I've fixed this by | |
| casting both values to be compared to "unsigned long" i.e. modulo | |
| 0x100000000L. | |
| Sat Apr 10 18:42:02 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * PC/Attic/_tkinter.def: No longer needed. | |
| * Misc/ACKS: Correct missed character in Andrew Dalke's name. | |
| * README: Add DEC Ultrix notes (from Donn Cave's email). | |
| * configure: The usual | |
| * configure.in: | |
| Quote a bunch of shell variables used in test, related to long-long. | |
| * Objects/fileobject.c, Modules/shamodule.c, Modules/regexpr.c: | |
| casts for picky compilers. | |
| * Modules/socketmodule.c: | |
| 3-arg gethostbyname_r doesn't really work on OSF/1. | |
| * PC/vc15_w31/_.c, PC/vc15_lib/_.c, Tools/pynche/__init__.py: | |
| Avoid totally empty files. | |
| Fri Apr 9 14:56:35 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Tools/scripts/fixps.py: Use re instead of regex. | |
| Don't rewrite the file in place. | |
| (Reported by Andy Dustman.) | |
| * Lib/netrc.py, Lib/shlex.py: Get rid of #! line | |
| Thu Apr 8 23:13:37 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * PCbuild/python15.wse: Use the Tcl 8.0.5 installer. | |
| Add a variable %_TCL_% that makes it easier to switch to a different version. | |
| ====================================================================== | |
| From 1.5.2b2 to 1.5.2c1 | |
| ======================= | |
| Thu Apr 8 23:13:37 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * PCbuild/python15.wse: | |
| Release 1.5.2c1. Add IDLE and Uninstall to program group. | |
| Don't distribute zlib.dll. Tweak some comments. | |
| * PCbuild/zlib.dsp: Now using static zlib 1.1.3 | |
| * Lib/dos-8x3/userdict.py, Lib/dos-8x3/userlist.py, Lib/dos-8x3/test_zli.py, Lib/dos-8x3/test_use.py, Lib/dos-8x3/test_pop.py, Lib/dos-8x3/test_pic.py, Lib/dos-8x3/test_ntp.py, Lib/dos-8x3/test_gzi.py, Lib/dos-8x3/test_fcn.py, Lib/dos-8x3/test_cpi.py, Lib/dos-8x3/test_bsd.py, Lib/dos-8x3/posixfil.py, Lib/dos-8x3/mimetype.py, Lib/dos-8x3/nturl2pa.py, Lib/dos-8x3/compilea.py, Lib/dos-8x3/exceptio.py, Lib/dos-8x3/basehttp.py: | |
| The usual | |
| * Include/patchlevel.h: Release 1.5.2c1 | |
| * README: Release 1.5.2c1. | |
| * Misc/NEWS: News for the 1.5.2c1 release. | |
| * Lib/test/test_strftime.py: | |
| On Windows, we suddenly find, strftime() may return "" for an | |
| unsupported format string. (I guess this is because the logic for | |
| deciding whether to reallocate the buffer or not has been improved.) | |
| This caused the test code to crash on result[0]. Fix this by assuming | |
| an empty result also means the format is not supported. | |
| * Demo/tkinter/matt/window-creation-w-location.py: | |
| This demo imported some private code from Matt. Make it cripple along. | |
| * Lib/lib-tk/Tkinter.py: | |
| Delete an accidentally checked-in feature that actually broke more | |
| than was worth it: when deleting a canvas item, it would try to | |
| automatically delete the bindings for that item. Since there's | |
| nothing that says you can't reuse the tag and still have the bindings, | |
| this is not correct. Also, it broke at least one demo | |
| (Demo/tkinter/matt/rubber-band-box-demo-1.py). | |
| * Python/thread_wince.h: Win/CE thread support by Mark Hammond. | |
| Wed Apr 7 20:23:17 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Modules/zlibmodule.c: | |
| Patch by Andrew Kuchling to unflush() (flush() for deflating). | |
| Without this, if inflate() returned Z_BUF_ERROR asking for more output | |
| space, we would report the error; now, we increase the buffer size and | |
| try again, just as for Z_OK. | |
| * Lib/test/test_gzip.py: Use binary mode for all gzip files we open. | |
| * Tools/idle/ChangeLog: New change log. | |
| * Tools/idle/README.txt, Tools/idle/NEWS.txt: New version. | |
| * Python/pythonrun.c: | |
| Alas, get rid of the Win specific hack to ask the user to press Return | |
| before exiting when an error happened. This didn't work right when | |
| Python is invoked from a daemon. | |
| * Tools/idle/idlever.py: Version bump awaiting impending new release. | |
| (Not much has changed :-( ) | |
| * Lib/lib-tk/Tkinter.py: | |
| lower, tkraise/lift hide Misc.lower, Misc.tkraise/lift, | |
| so the preferred name for them is tag_lower, tag_raise | |
| (similar to tag_bind, and similar to the Text widget); | |
| unfortunately can't delete the old ones yet (maybe in 1.6) | |
| * Python/thread.c, Python/strtod.c, Python/mystrtoul.c, Python/import.c, Python/ceval.c: | |
| Changes by Mark Hammond for Windows CE. Mostly of the form | |
| #ifdef DONT_HAVE_header_H ... #endif around #include <header.h>. | |
| * Python/bltinmodule.c: | |
| Remove unused variable from complex_from_string() code. | |
| * Include/patchlevel.h: | |
| Add the possibility of a gamma release (release candidate). | |
| Add '+' to string version number to indicate we're beyond b2 now. | |
| * Modules/posixmodule.c: Add extern decl for fsync() for SunOS 4.x. | |
| * Lib/smtplib.py: Changes by Per Cederquist and The Dragon. | |
| Per writes: | |
| """ | |
| The application where Signum Support uses smtplib needs to be able to | |
| report good error messages to the user when sending email fails. To | |
| help in diagnosing problems it is useful to be able to report the | |
| entire message sent by the server, not only the SMTP error code of the | |
| offending command. | |
| A lot of the functions in sendmail.py unfortunately discards the | |
| message, leaving only the code. The enclosed patch fixes that | |
| problem. | |
| The enclosed patch also introduces a base class for exceptions that | |
| include an SMTP error code and error message, and make the code and | |
| message available on separate attributes, so that surrounding code can | |
| deal with them in whatever way it sees fit. I've also added some | |
| documentation to the exception classes. | |
| The constructor will now raise an exception if it cannot connect to | |
| the SMTP server. | |
| The data() method will raise an SMTPDataError if it doesn't receive | |
| the expected 354 code in the middle of the exchange. | |
| According to section 5.2.10 of RFC 1123 a smtp client must accept "any | |
| text, including no text at all" after the error code. If the response | |
| of a HELO command contains no text self.helo_resp will be set to the | |
| empty string (""). The patch fixes the test in the sendmail() method | |
| so that helo_resp is tested against None; if it has the empty string | |
| as value the sendmail() method would invoke the helo() method again. | |
| The code no longer accepts a -1 reply from the ehlo() method in | |
| sendmail(). | |
| [Text about removing SMTPRecipientsRefused deleted --GvR] | |
| """ | |
| and also: | |
| """ | |
| smtplib.py appends an extra blank line to the outgoing mail if the | |
| `msg' argument to the sendmail method already contains a trailing | |
| newline. This patch should fix the problem. | |
| """ | |
| The Dragon writes: | |
| """ | |
| Mostly I just re-added the SMTPRecipientsRefused exception | |
| (the exception object now has the appropriate info in it ) [Per had | |
| removed this in his patch --GvR] and tweaked the behavior of the | |
| sendmail method whence it throws the newly added SMTPHeloException (it | |
| was closing the connection, which it shouldn't. whatever catches the | |
| exception should do that. ) | |
| I pondered the change of the return values to tuples all around, | |
| and after some thinking I decided that regularizing the return values was | |
| too much of the Right Thing (tm) to not do. | |
| My one concern is that code expecting an integer & getting a tuple | |
| may fail silently. | |
| (i.e. if it's doing : | |
| x.somemethod() >= 400: | |
| expecting an integer, the expression will always be true if it gets a | |
| tuple instead. ) | |
| However, most smtplib code I've seen only really uses the | |
| sendmail() method, so this wouldn't bother it. Usually code I've seen | |
| that calls the other methods usually only calls helo() and ehlo() for | |
| doing ESMTP, a feature which was not in the smtplib included with 1.5.1, | |
| and thus I would think not much code uses it yet. | |
| """ | |
| Tue Apr 6 19:38:18 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/test/test_ntpath.py: | |
| Fix the tests now that splitdrive() no longer treats UNC paths special. | |
| (Some tests converted to splitunc() tests.) | |
| * Lib/ntpath.py: | |
| Withdraw the UNC support from splitdrive(). Instead, a new function | |
| splitunc() parses UNC paths. The contributor of the UNC parsing in | |
| splitdrive() doesn't like it, but I haven't heard a good reason to | |
| keep it, and it causes some problems. (I think there's a | |
| philosophical problem -- to me, the split*() functions are purely | |
| syntactical, and the fact that \\foo is not a valid path doesn't mean | |
| that it shouldn't be considered an absolute path.) | |
| Also (quite separately, but strangely related to the philosophical | |
| issue above) fix abspath() so that if win32api exists, it doesn't fail | |
| when the path doesn't actually exist -- if GetFullPathName() fails, | |
| fall back on the old strategy (join with getcwd() if necessary, and | |
| then use normpath()). | |
| * configure.in, configure, config.h.in, acconfig.h: | |
| For BeOS PowerPC. Chris Herborth. | |
| Mon Apr 5 21:54:14 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Modules/timemodule.c: | |
| Jonathan Giddy notes, and Chris Lawrence agrees, that some comments on | |
| #else/#endif are wrong, and that #if HAVE_TM_ZONE should be #ifdef. | |
| * Misc/ACKS: | |
| Bunch of new contributors, including 9 who contributed to the Docs, | |
| reported by Fred. | |
| Mon Apr 5 18:37:59 1999 Fred Drake <fdrake@eric.cnri.reston.va.us> | |
| * Lib/gzip.py: | |
| Oops, missed mode parameter to open(). | |
| * Lib/gzip.py: | |
| Made the default mode 'rb' instead of 'r', for better cross-platform | |
| support. (Based on comment on the documentation by Bernhard Reiter | |
| <bernhard@csd.uwm.edu>). | |
| Fri Apr 2 22:18:25 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Tools/scripts/dutree.py: | |
| For reasons I dare not explain, this script should always execute | |
| main() when imported (in other words, it is not usable as a module). | |
| Thu Apr 1 15:32:30 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/test/test_cpickle.py: Jonathan Giddy write: | |
| In test_cpickle.py, the module os got imported, but the line to remove | |
| the temp file has gone missing. | |
| Tue Mar 30 20:17:31 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/BaseHTTPServer.py: Per Cederqvist writes: | |
| If you send something like "PUT / HTTP/1.0" to something derived from | |
| BaseHTTPServer that doesn't define do_PUT, you will get a response | |
| that begins like this: | |
| HTTP/1.0 501 Unsupported method ('do_PUT') | |
| Server: SimpleHTTP/0.3 Python/1.5 | |
| Date: Tue, 30 Mar 1999 18:53:53 GMT | |
| The server should complain about 'PUT' instead of 'do_PUT'. This | |
| patch should fix the problem. | |
| Mon Mar 29 20:33:21 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/smtplib.py: Patch by Per Cederqvist, who writes: | |
| """ | |
| - It needlessly used the makefile() method for each response that is | |
| read from the SMTP server. | |
| - If the remote SMTP server closes the connection unexpectedly the | |
| code raised an IndexError. It now raises an SMTPServerDisconnected | |
| exception instead. | |
| - The code now checks that all lines in a multiline response actually | |
| contains an error code. | |
| """ | |
| The Dragon approves. | |
| Mon Mar 29 20:25:40 1999 Fred Drake <fdrake@eric.cnri.reston.va.us> | |
| * Lib/compileall.py: | |
| When run as a script, report failures in the exit code as well. | |
| Patch largely based on changes by Andrew Dalke, as discussed in the | |
| distutils-sig. | |
| Mon Mar 29 20:23:41 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/urllib.py: | |
| Hack so that if a 302 or 301 redirect contains a relative URL, the | |
| right thing "just happens" (basejoin() with old URL). | |
| * Modules/cPickle.c: | |
| Protection against picling to/from closed (real) file. | |
| The problem was reported by Moshe Zadka. | |
| * Lib/test/test_cpickle.py: | |
| Test protection against picling to/from closed (real) file. | |
| * Modules/timemodule.c: Chris Lawrence writes: | |
| """ | |
| The GNU folks, in their infinite wisdom, have decided not to implement | |
| altzone in libc6; this would not be horrible, except that timezone | |
| (which is implemented) includes the current DST setting (i.e. timezone | |
| for Central is 18000 in summer and 21600 in winter). So Python's | |
| timezone and altzone variables aren't set correctly during DST. | |
| Here's a patch relative to 1.5.2b2 that (a) makes timezone and altzone | |
| show the "right" thing on Linux (by using the tm_gmtoff stuff | |
| available in BSD, which is how the GLIBC manual claims things should | |
| be done) and (b) should cope with the southern hemisphere. In pursuit | |
| of (b), I also took the liberty of renaming the "summer" and "winter" | |
| variables to "july" and "jan". This patch should also make certain | |
| time calculations on Linux actually work right (like the tz-aware | |
| functions in the rfc822 module). | |
| (It's hard to find DST that's currently being used in the southern | |
| hemisphere; I tested using Africa/Windhoek.) | |
| """ | |
| * Lib/test/output/test_gzip: | |
| Jonathan Giddy discovered this file was missing. | |
| * Modules/shamodule.c: | |
| Avoid warnings from AIX compiler. Reported by Vladimir (AIX is my | |
| middlename) Marangozov, patch coded by Greg Stein. | |
| * Tools/idle/ScriptBinding.py, Tools/idle/PyShell.py: | |
| At Tim Peters' recommendation, add a dummy flush() method to PseudoFile. | |
| Sun Mar 28 17:55:32 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Tools/scripts/ndiff.py: Tim Peters writes: | |
| I should have waited overnight <wink/sigh>. Nothing wrong with the one I | |
| sent, but I couldn't resist going on to add new -r1 / -r2 cmdline options | |
| for recreating the original files from ndiff's output. That's attached, if | |
| you're game! Us Windows guys don't usually have a sed sitting around | |
| <wink>. | |
| Sat Mar 27 13:34:01 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Tools/scripts/ndiff.py: Tim Peters writes: | |
| Attached is a cleaned-up version of ndiff (added useful module | |
| docstring, now echo'ed in case of cmd line mistake); added -q option | |
| to suppress initial file identification lines; + other minor cleanups, | |
| & a slightly faster match engine. | |
| Fri Mar 26 22:36:00 1999 Fred Drake <fdrake@eric.cnri.reston.va.us> | |
| * Tools/scripts/dutree.py: | |
| During display, if EPIPE is raised, it's probably because a pager was | |
| killed. Discard the error in that case, but propagate it otherwise. | |
| Fri Mar 26 16:20:45 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/test/output/test_userlist, Lib/test/test_userlist.py: | |
| Test suite for UserList. | |
| * Lib/UserList.py: Use isinstance() where appropriate. | |
| Reformatted with 4-space indent. | |
| Fri Mar 26 16:11:40 1999 Barry Warsaw <bwarsaw@eric.cnri.reston.va.us> | |
| * Tools/pynche/PyncheWidget.py: | |
| Helpwin.__init__(): The text widget should get focus. | |
| * Tools/pynche/pyColorChooser.py: | |
| Removed unnecessary import `from PyncheWidget import PyncheWidget' | |
| Fri Mar 26 15:32:05 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/test/output/test_userdict, Lib/test/test_userdict.py: | |
| Test suite for UserDict | |
| * Lib/UserDict.py: Improved a bunch of things. | |
| The constructor now takes an optional dictionary. | |
| Use isinstance() where appropriate. | |
| Thu Mar 25 22:38:49 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/test/output/test_pickle, Lib/test/output/test_cpickle, Lib/test/test_pickle.py, Lib/test/test_cpickle.py: | |
| Basic regr tests for pickle/cPickle | |
| * Lib/pickle.py: | |
| Don't use "exec" in find_class(). It's slow, unnecessary, and (as AMK | |
| points out) it doesn't work in JPython Applets. | |
| Thu Mar 25 21:50:27 1999 Andrew Kuchling <akuchlin@eric.cnri.reston.va.us> | |
| * Lib/test/test_gzip.py: | |
| Added a simple test suite for gzip. It simply opens a temp file, | |
| writes a chunk of compressed data, closes it, writes another chunk, and | |
| reads the contents back to verify that they are the same. | |
| * Lib/gzip.py: | |
| Based on a suggestion from bruce@hams.com, make a trivial change to | |
| allow using the 'a' flag as a mode for opening a GzipFile. gzip | |
| files, surprisingly enough, can be concatenated and then decompressed; | |
| the effect is to concatenate the two chunks of data. | |
| If we support it on writing, it should also be supported on reading. | |
| This *wasn't* trivial, and required rearranging the code in the | |
| reading path, particularly the _read() method. | |
| Raise IOError instead of RuntimeError in two cases, 'Not a gzipped file' | |
| and 'Unknown compression method' | |
| Thu Mar 25 21:25:01 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/test/test_b1.py: | |
| Add tests for float() and complex() with string args (Nick/Stephanie | |
| Lockwood). | |
| Thu Mar 25 21:21:08 1999 Andrew Kuchling <akuchlin@eric.cnri.reston.va.us> | |
| * Modules/zlibmodule.c: | |
| Add an .unused_data attribute to decompressor objects. If .unused_data | |
| is not an empty string, this means that you have arrived at the | |
| end of the stream of compressed data, and the contents of .unused_data are | |
| whatever follows the compressed stream. | |
| Thu Mar 25 21:16:07 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Python/bltinmodule.c: | |
| Patch by Nick and Stephanie Lockwood to implement complex() with a string | |
| argument. This closes TODO item 2.19. | |
| Wed Mar 24 19:09:00 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Tools/webchecker/wcnew.py: Added Samuel Bayer's new webchecker. | |
| Unfortunately his code breaks wcgui.py in a way that's not easy | |
| to fix. I expect that this is a temporary situation -- | |
| eventually Sam's changes will be merged back in. | |
| (The changes add a -t option to specify exceptions to the -x | |
| option, and explicit checking for #foo style fragment ids.) | |
| * Objects/dictobject.c: | |
| Vladimir Marangozov contributed updated comments. | |
| * Objects/bufferobject.c: Folded long lines. | |
| * Lib/test/output/test_sha, Lib/test/test_sha.py: | |
| Added Jeremy's test code for the sha module. | |
| * Modules/shamodule.c, Modules/Setup.in: | |
| Added Greg Stein and Andrew Kuchling's sha module. | |
| Fix comments about zlib version and URL. | |
| * Lib/test/test_bsddb.py: Remove the temp file when we're done. | |
| * Include/pythread.h: Conform to standard boilerplate. | |
| * configure.in, configure, BeOS/linkmodule, BeOS/ar-fake: | |
| Chris Herborth: the new compiler in R4.1 needs some new options to work... | |
| * Modules/socketmodule.c: | |
| Implement two suggestions by Jonathan Giddy: (1) in AIX, clear the | |
| data struct before calling gethostby{name,addr}_r(); (2) ignore the | |
| 3/5/6 args determinations made by the configure script and switch on | |
| platform identifiers instead: | |
| AIX, OSF have 3 args | |
| Sun, SGI have 5 args | |
| Linux has 6 args | |
| On all other platforms, undef HAVE_GETHOSTBYNAME_R altogether. | |
| * Modules/socketmodule.c: | |
| Vladimir Marangozov implements the AIX 3-arg gethostbyname_r code. | |
| * Lib/mailbox.py: | |
| Add readlines() to _Subfile class. Not clear who would need it, but | |
| Chris Lawrence sent me a broken version; this one is a tad simpler and | |
| more conforming to the standard. | |
| Tue Mar 23 23:05:34 1999 Jeremy Hylton <jhylton@eric.cnri.reston.va.us> | |
| * Lib/gzip.py: use struct instead of bit-manipulate in Python | |
| Tue Mar 23 19:00:55 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Modules/Makefile.pre.in: | |
| Add $(EXE) to various occurrences of python so it will work on Cygwin | |
| with egcs (after setting EXE=.exe). Patch by Norman Vine. | |
| * configure, configure.in: | |
| Ack! It never defined HAVE_GETHOSTBYNAME_R so that code was never tested! | |
| Mon Mar 22 22:25:39 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Include/thread.h: | |
| Adding thread.h -- unused but for b/w compatibility. | |
| As requested by Bill Janssen. | |
| * configure.in, configure: | |
| Add code to test for all sorts of gethostbyname_r variants, | |
| donated by David Arnold. | |
| * config.h.in, acconfig.h: | |
| Add symbols for gethostbyname_r variants (sigh). | |
| * Modules/socketmodule.c: Clean up pass for the previous patches. | |
| - Use HAVE_GETHOSTBYNAME_R_6_ARG instead of testing for Linux and | |
| glibc2. | |
| - If gethostbyname takes 3 args, undefine HAVE_GETHOSTBYNAME_R -- | |
| don't know what code should be used. | |
| - New symbol USE_GETHOSTBYNAME_LOCK defined iff the lock should be used. | |
| - Modify the gethostbyaddr() code to also hold on to the lock until | |
| after it is safe to release, overlapping with the Python lock. | |
| (Note: I think that it could in theory be possible that Python code | |
| executed while gethostbyname_lock is held could attempt to reacquire | |
| the lock -- e.g. in a signal handler or destructor. I will simply say | |
| "don't do that then.") | |
| * Modules/socketmodule.c: Jonathan Giddy writes: | |
| Here's a patch to fix the race condition, which wasn't fixed by Rob's | |
| patch. It holds the gethostbyname lock until the results are copied out, | |
| which means that this lock and the Python global lock are held at the same | |
| time. This shouldn't be a problem as long as the gethostbyname lock is | |
| always acquired when the global lock is not held. | |
| Mon Mar 22 19:25:30 1999 Andrew Kuchling <akuchlin@eric.cnri.reston.va.us> | |
| * Modules/zlibmodule.c: | |
| Fixed the flush() method of compression objects; the test for | |
| the end of loop was incorrect, and failed when the flushmode != Z_FINISH. | |
| Logic cleaned up and commented. | |
| * Lib/test/test_zlib.py: | |
| Added simple test for the flush() method of compression objects, trying the | |
| different flush values Z_NO_FLUSH, Z_SYNC_FLUSH, Z_FULL_FLUSH. | |
| Mon Mar 22 15:28:08 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/shlex.py: | |
| Bug reported by Tobias Thelen: missing "self." in assignment target. | |
| Fri Mar 19 21:50:11 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Modules/arraymodule.c: | |
| Use an unsigned cast to avoid a warning in VC++. | |
| * Lib/dospath.py, Lib/ntpath.py: | |
| New code for split() by Tim Peters, behaves more like posixpath.split(). | |
| * Objects/floatobject.c: | |
| Fix a problem with Vladimir's PyFloat_Fini code: clear the free list; if | |
| a block cannot be freed, add its free items back to the free list. | |
| This is necessary to avoid leaking when Python is reinitialized later. | |
| * Objects/intobject.c: | |
| Fix a problem with Vladimir's PyInt_Fini code: clear the free list; if | |
| a block cannot be freed, add its free items back to the free list, and | |
| add its valid ints back to the small_ints array if they are in range. | |
| This is necessary to avoid leaking when Python is reinitialized later. | |
| * Lib/types.py: | |
| Added BufferType, the type returned by the new builtin buffer(). Greg Stein. | |
| * Python/bltinmodule.c: | |
| New builtin buffer() creates a derived read-only buffer from any | |
| object that supports the buffer interface (e.g. strings, arrays). | |
| * Objects/bufferobject.c: | |
| Added check for negative offset for PyBuffer_FromObject and check for | |
| negative size for PyBuffer_FromMemory. Greg Stein. | |
| Thu Mar 18 15:10:44 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/urlparse.py: Sjoerd Mullender writes: | |
| If a filename on Windows starts with \\, it is converted to a URL | |
| which starts with ////. If this URL is passed to urlparse.urlparse | |
| you get a path that starts with // (and an empty netloc). If you pass | |
| the result back to urlparse.urlunparse, you get a URL that starts with | |
| //, which is parsed differently by urlparse.urlparse. The fix is to | |
| add the (empty) netloc with accompanying slashes if the path in | |
| urlunparse starts with //. Do this for all schemes that use a netloc. | |
| * Lib/nturl2path.py: Sjoerd Mullender writes: | |
| Pathnames of files on other hosts in the same domain | |
| (\\host\path\to\file) are not translated correctly to URLs and back. | |
| The URL should be something like file:////host/path/to/file. | |
| Note that a combination of drive letter and remote host is not | |
| possible. | |
| Wed Mar 17 22:30:10 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/urlparse.py: | |
| Delete non-standard-conforming code in urljoin() that would use the | |
| netloc from the base url as the default netloc for the resulting url | |
| even if the schemes differ. | |
| Once upon a time, when the web was wild, this was a valuable hack | |
| because some people had a URL referencing an ftp server colocated with | |
| an http server without having the host in the ftp URL (so they could | |
| replicate it or change the hostname easily). | |
| More recently, after the file: scheme got added back to the list of | |
| schemes that accept a netloc, it turns out that this caused weirdness | |
| when joining an http: URL with a file: URL -- the resulting file: URL | |
| would always inherit the host from the http: URL because the file: | |
| scheme supports a netloc but in practice never has one. | |
| There are two reasons to get rid of the old, once-valuable hack, | |
| instead of removing the file: scheme from the uses_netloc list. One, | |
| the RFC says that file: uses the netloc syntax, and does not endorse | |
| the old hack. Two, neither netscape 4.5 nor IE 4.0 support the old | |
| hack. | |
| * Include/ceval.h, Include/abstract.h: | |
| Add DLL level b/w compat for PySequence_In and PyEval_CallObject | |
| Tue Mar 16 21:54:50 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/lib-tk/Tkinter.py: Bug reported by Jim Robinson: | |
| An attempt to execute grid_slaves with arguments (0,0) results in | |
| *all* of the slaves being returned, not just the slave associated with | |
| row 0, column 0. This is because the test for arguments in the method | |
| does not test to see if row (and column) does not equal None, but | |
| rather just whether is evaluates to non-false. A value of 0 fails | |
| this test. | |
| Tue Mar 16 14:17:48 1999 Fred Drake <fdrake@eric.cnri.reston.va.us> | |
| * Modules/cmathmodule.c: | |
| Docstring fix: acosh() returns the hyperbolic arccosine, not the | |
| hyperbolic cosine. Problem report via David Ascher by one of his | |
| students. | |
| Mon Mar 15 21:40:59 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * configure.in: | |
| Should test for gethost*by*name_r, not for gethostname_r (which | |
| doesn't exist and doesn't make sense). | |
| * Modules/socketmodule.c: | |
| Patch by Rob Riggs for Linux -- glibc2 has a different argument | |
| converntion for gethostbyname_r() etc. than Solaris! | |
| * Python/thread_pthread.h: Rob Riggs wrote: | |
| """ | |
| Spec says that on success pthread_create returns 0. It does not say | |
| that an error code will be < 0. Linux glibc2 pthread_create() returns | |
| ENOMEM (12) when one exceed process limits. (It looks like it should | |
| return EAGAIN, but that's another story.) | |
| For reference, see: | |
| http://www.opengroup.org/onlinepubs/7908799/xsh/pthread_create.html | |
| """ | |
| [I have a feeling that similar bugs were fixed before; perhaps someone | |
| could check that all error checks no check for != 0?] | |
| * Tools/bgen/bgen/bgenObjectDefinition.py: | |
| New mixin class that defines cmp and hash that use | |
| the ob_itself pointer. This allows (when using the mixin) | |
| different Python objects pointing to the same C object and | |
| behaving well as dictionary keys. | |
| Or so sez Jack Jansen... | |
| * Lib/urllib.py: Yet another patch by Sjoerd Mullender: | |
| Don't convert URLs to URLs using pathname2url. | |
| Fri Mar 12 22:15:43 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/cmd.py: Patch by Michael Scharf. He writes: | |
| The module cmd requires for each do_xxx command a help_xxx | |
| function. I think this is a little old fashioned. | |
| Here is a patch: use the docstring as help if no help_xxx | |
| function can be found. | |
| [I'm tempted to rip out all the help_* functions from pdb, but I'll | |
| resist it. Any takers? --Guido] | |
| * Tools/freeze/freeze.py: Bug submitted by Wayne Knowles, who writes: | |
| Under Windows, python freeze.py -o hello hello.py | |
| creates all the correct files in the hello subdirectory, but the | |
| Makefile has the directory prefix in it for frozen_extensions.c | |
| nmake fails because it tries to locate hello/frozen_extensions.c | |
| (His fix adds a call to os.path.basename() in the appropriate place.) | |
| * Objects/floatobject.c, Objects/intobject.c: | |
| Vladimir has restructured his code somewhat so that the blocks are now | |
| represented by an explicit structure. (There are still too many casts | |
| in the code, but that may be unavoidable.) | |
| Also added code so that with -vv it is very chatty about what it does. | |
| * Demo/zlib/zlibdemo.py, Demo/zlib/minigzip.py: | |
| Change #! line to modern usage; also chmod +x | |
| * Demo/pdist/rrcs, Demo/pdist/rcvs, Demo/pdist/rcsbump: | |
| Change #! line to modern usage | |
| * Lib/nturl2path.py, Lib/urllib.py: From: Sjoerd Mullender | |
| The filename to URL conversion didn't properly quote special | |
| characters. | |
| The URL to filename didn't properly unquote special characters. | |
| * Objects/floatobject.c: | |
| OK, try again. Vladimir gave me a fix for the alignment bus error, | |
| so here's his patch again. This time it works (at least on Solaris, | |
| Linux and Irix). | |
| Thu Mar 11 23:21:23 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Tools/idle/PathBrowser.py: | |
| Don't crash when sys.path contains an empty string. | |
| * Tools/idle/PathBrowser.py: | |
| - Don't crash in the case where a superclass is a string instead of a | |
| pyclbr.Class object; this can happen when the superclass is | |
| unrecognizable (to pyclbr), e.g. when module renaming is used. | |
| - Show a watch cursor when calling pyclbr (since it may take a while | |
| recursively parsing imported modules!). | |
| Thu Mar 11 16:04:04 1999 Fred Drake <fdrake@eric.cnri.reston.va.us> | |
| * Lib/mimetypes.py: | |
| Added .rdf and .xsl as application/xml types. (.rdf is for the | |
| Resource Description Framework, a metadata encoding, and .xsl is for | |
| the Extensible Stylesheet Language.) | |
| Thu Mar 11 13:26:23 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/test/output/test_popen2, Lib/test/test_popen2.py: | |
| Test for popen2 module, by Chris Tismer. | |
| * Objects/floatobject.c: | |
| Alas, Vladimir's patch caused a bus error (probably double | |
| alignment?), and I didn't test it. Withdrawing it for now. | |
| Wed Mar 10 22:55:47 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Objects/floatobject.c: | |
| Patch by Vladimir Marangoz to allow freeing of the allocated blocks of | |
| floats on finalization. | |
| * Objects/intobject.c: | |
| Patch by Vladimir Marangoz to allow freeing of the allocated blocks of | |
| integers on finalization. | |
| * Tools/idle/EditorWindow.py, Tools/idle/Bindings.py: | |
| Add PathBrowser to File module | |
| * Tools/idle/PathBrowser.py: | |
| "Path browser" - 4 scrolled lists displaying: | |
| directories on sys.path | |
| modules in selected directory | |
| classes in selected module | |
| methods of selected class | |
| Single clicking in a directory, module or class item updates the next | |
| column with info about the selected item. Double clicking in a | |
| module, class or method item opens the file (and selects the clicked | |
| item if it is a class or method). | |
| I guess eventually I should be using a tree widget for this, but the | |
| ones I've seen don't work well enough, so for now I use the old | |
| Smalltalk or NeXT style multi-column hierarchical browser. | |
| * Tools/idle/MultiScrolledLists.py: | |
| New utility: multiple scrolled lists in parallel | |
| * Tools/idle/ScrolledList.py: - White background. | |
| - Display "(None)" (or text of your choosing) when empty. | |
| - Don't set the focus. | |
| Tue Mar 9 19:31:21 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/urllib.py: | |
| open_http also had the 'data is None' test backwards. don't call with the | |
| extra argument if data is None. | |
| * Demo/embed/demo.c: | |
| Call Py_SetProgramName() instead of redefining getprogramname(), | |
| reflecting changes in the runtime around 1.5 or earlier. | |
| * Python/ceval.c: | |
| Always test for an error return (usually NULL or -1) without setting | |
| an exception. | |
| * Modules/timemodule.c: Patch by Chris Herborth for BeOS code. | |
| He writes: | |
| I had an off-by-1000 error in floatsleep(), | |
| and the problem with time.clock() is that it's not implemented properly | |
| on QNX... ANSI says it's supposed to return _CPU_ time used by the | |
| process, but on QNX it returns the amount of real time used... so I was | |
| confused. | |
| * Tools/bgen/bgen/macsupport.py: Small change by Jack Jansen. | |
| Test for self.returntype behaving like OSErr rather than being it. | |
| Thu Feb 25 16:14:58 1999 Jeremy Hylton <jhylton@eric.cnri.reston.va.us> | |
| * Lib/urllib.py: | |
| http_error had the 'data is None' test backwards. don't call with the | |
| extra argument if data is None. | |
| * Lib/urllib.py: change indentation from 8 spaces to 4 spaces | |
| * Lib/urllib.py: pleasing the tabnanny | |
| Thu Feb 25 14:26:02 1999 Fred Drake <fdrake@eric.cnri.reston.va.us> | |
| * Lib/colorsys.py: | |
| Oops, one more "x, y, z" to convert... | |
| * Lib/colorsys.py: | |
| Adjusted comment at the top to be less confusing, following Fredrik | |
| Lundh's example. | |
| Converted comment to docstring. | |
| Wed Feb 24 18:49:15 1999 Fred Drake <fdrake@eric.cnri.reston.va.us> | |
| * Lib/toaiff.py: | |
| Use sndhdr instead of the obsolete whatsound module. | |
| Wed Feb 24 18:42:38 1999 Jeremy Hylton <jhylton@eric.cnri.reston.va.us> | |
| * Lib/urllib.py: | |
| When performing a POST request, i.e. when the second argument to | |
| urlopen is used to specify form data, make sure the second argument is | |
| threaded through all of the http_error_NNN calls. This allows error | |
| handlers like the redirect and authorization handlers to properly | |
| re-start the connection. | |
| Wed Feb 24 16:25:17 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/mhlib.py: Patch by Lars Wirzenius: | |
| o the initial comment is wrong: creating messages is already | |
| implemented | |
| o Message.getbodytext: if the mail or it's part contains an | |
| empty content-transfer-encoding header, the code used to | |
| break; the change below treats an empty encoding value the same | |
| as the other types that do not need decoding | |
| o SubMessage.getbodytext was missing the decode argument; the | |
| change below adds it; I also made it unconditionally return | |
| the raw text if decoding was not desired, because my own | |
| routines needed that (and it was easier than rewriting my | |
| own routines ;-) | |
| Wed Feb 24 00:35:43 1999 Barry Warsaw <bwarsaw@eric.cnri.reston.va.us> | |
| * Python/bltinmodule.c (initerrors): | |
| Make sure that the exception tuples ("base-classes" when | |
| string-based exceptions are used) reflect the real class hierarchy, | |
| i.e. that SystemExit derives from Exception not StandardError. | |
| * Lib/exceptions.py: | |
| Document the correct class hierarchy for SystemExit. It is not an | |
| error and so it derives from Exception and not SystemError. The | |
| docstring was incorrect but the implementation was fine. | |
| Tue Feb 23 23:07:51 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/shutil.py: | |
| Add import sys, needed by reference to sys.exc_info() in rmtree(). | |
| Discovered by Mitch Chapman. | |
| * config.h.in: | |
| Now that we don't have AC_CHECK_LIB(m, pow), the HAVE_LIBM symbol | |
| disappears. It wasn't used anywhere anyway... | |
| * Modules/arraymodule.c: | |
| Carefully check for overflow when allocating the memory for fromfile | |
| -- someone tried to pass in sys.maxint and got bitten by the bogus | |
| calculations. | |
| * configure.in: | |
| Get rid of AC_CHECK_LIB(m, pow) since this is taken care of later with | |
| LIBM (from --with-libm=...); this actually broke the customizability | |
| offered by the latter option. Thanks go to Clay Spence for reporting | |
| this. | |
| * Lib/test/test_dl.py: | |
| 1. Print the error message (carefully) when a dl.open() fails in verbose mode. | |
| 2. When no test case worked, raise ImportError instead of failing. | |
| * Python/bltinmodule.c: | |
| Patch by Tim Peters to improve the range checks for range() and | |
| xrange(), especially for platforms where int and long are different | |
| sizes (so sys.maxint isn't actually the theoretical limit for the | |
| length of a list, but the largest C int is -- sys.maxint is the | |
| largest Python int, which is actually a C long). | |
| * Makefile.in: | |
| 1. Augment the DG/UX rule so it doesn't break the BeOS build. | |
| 2. Add $(EXE) to various occurrences of python so it will work on | |
| Cygwin with egcs (after setting EXE=.exe). These patches by | |
| Norman Vine. | |
| * Lib/posixfile.py: | |
| According to Jeffrey Honig, bsd/os 2.0 - 4.0 should be added to the | |
| list (of bsd variants that have a different lock structure). | |
| * Lib/test/test_fcntl.py: | |
| According to Jeffrey Honig, bsd/os 4.0 should be added to the list. | |
| * Modules/timemodule.c: | |
| Patch by Tadayoshi Funaba (with some changes) to be smarter about | |
| guessing what happened when strftime() returns 0. Is it buffer | |
| overflow or was the result simply 0 bytes long? (This happens for an | |
| empty format string, or when the format string is a single %Z and the | |
| timezone is unknown.) if the buffer is at least 256 times as long as | |
| the format, assume the latter. | |
| Mon Feb 22 19:01:42 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/urllib.py: | |
| As Des Barry points out, we need to call pathname2url(file) in two | |
| calls to addinfourl() in open_file(). | |
| * Modules/Setup.in: Document *static* -- in two places! | |
| * Modules/timemodule.c: | |
| We don't support leap seconds, so the seconds field of a time 9-tuple | |
| should be in the range [0-59]. Noted by Tadayoshi Funaba. | |
| * Modules/stropmodule.c: | |
| In atoi(), don't use isxdigit() to test whether the last character | |
| converted was a "digit" -- use isalnum(). This test is there only to | |
| guard against "+" or "-" being interpreted as a valid int literal. | |
| Reported by Takahiro Nakayama. | |
| * Lib/os.py: | |
| As Finn Bock points out, _P_WAIT etc. don't have a leading underscore | |
| so they don't need to be treated specially here. | |
| Mon Feb 22 15:38:58 1999 Fred Drake <fdrake@eric.cnri.reston.va.us> | |
| * Misc/NEWS: | |
| Typo: "apparentlt" --> "apparently" | |
| Mon Feb 22 15:38:46 1999 Guido van Rossum <guido@eric.cnri.reston.va.us> | |
| * Lib/urlparse.py: Steve Clift pointed out that 'file' allows a netloc. | |
| * Modules/posixmodule.c: | |
| The docstring for ttyname(..) claims a second "mode" argument. The | |
| actual code does not allow such an argument. (Finn Bock.) | |
| * Lib/lib-old/poly.py: | |
| Dang. Even though this is obsolete code, somebody found a bug, and I | |
| fix it. Oh well. | |
| Thu Feb 18 20:51:50 1999 Fred Drake <fdrake@eric.cnri.reston.va.us> | |
| * Lib/pyclbr.py: | |
| Bow to font-lock at the end of the docstring, since it throws stuff | |
| off. | |
| Make sure the path parameter to readmodule() is a list before adding it | |
| with sys.path, or the addition could fail. | |
| ====================================================================== | |
| From 1.5.2b1 to 1.5.2b2 | |
| ======================= | |
| General | |
| ------- | |
| - Many memory leaks fixed. | |
| - Many small bugs fixed. | |
| - Command line option -OO (or -O -O) suppresses inclusion of doc | |
| strings in resulting bytecode. | |
| Windows-specific changes | |
| ------------------------ | |
| - New built-in module winsound provides an interface to the Win32 | |
| PlaySound() call. | |
| - Re-enable the audioop module in the config.c file. | |
| - On Windows, support spawnv() and associated P_* symbols. | |
| - Fixed the conversion of times() return values on Windows. | |
| - Removed freeze from the installer -- it doesn't work without the | |
| source tree. (See FAQ 8.11.) | |
| - On Windows 95/98, the Tkinter module now is smart enough to find | |
| Tcl/Tk even when the PATH environment variable hasn't been set -- when | |
| the import of _tkinter fails, it searches in a standard locations, | |
| patches os.environ["PATH"], and tries again. When it still fails, a | |
| clearer error message is produced. This should avoid most | |
| installation problems with Tkinter use (e.g. in IDLE). | |
| - The -i option doesn't make any calls to set[v]buf() for stdin -- | |
| this apparently screwed up _kbhit() and the _tkinter main loop. | |
| - The ntpath module (and hence, os.path on Windows) now parses out UNC | |
| paths (e.g. \\host\mountpoint\dir\file) as "drive letters", so that | |
| splitdrive() will \\host\mountpoint as the drive and \dir\file as the | |
| path. ** EXPERIMENTAL ** | |
| - Added a hack to the exit code so that if (1) the exit status is | |
| nonzero and (2) we think we have our own DOS box (i.e. we're not | |
| started from a command line shell), we print a message and wait for | |
| the user to hit a key before the DOS box is closed. | |
| - Updated the installer to WISE 5.0g. Added a dialog warning about | |
| the imminent Tcl installation. Added a dialog to specify the program | |
| group name in the start menu. Upgraded the Tcl installer to Tcl | |
| 8.0.4. | |
| Changes to intrinsics | |
| --------------------- | |
| - The repr() or str() of a module object now shows the __file__ | |
| attribute (i.e., the file which it was loaded), or the string | |
| "(built-in)" if there is no __file__ attribute. | |
| - The range() function now avoids overflow during its calculations (if | |
| at all possible). | |
| - New info string sys.hexversion, which is an integer encoding the | |
| version in hexadecimal. In other words, hex(sys.hexversion) == | |
| 0x010502b2 for Python 1.5.2b2. | |
| New or improved ports | |
| --------------------- | |
| - Support for Nextstep descendants (future Mac systems). | |
| - Improved BeOS support. | |
| - Support dynamic loading of shared libraries on NetBSD platforms that | |
| use ELF (i.e., MIPS and Alpha systems). | |
| Configuration/build changes | |
| --------------------------- | |
| - The Lib/test directory is no longer included in the default module | |
| search path (sys.path) -- "test" has been a package ever since 1.5. | |
| - Now using autoconf 2.13. | |
| New library modules | |
| ------------------- | |
| - New library modules asyncore and asynchat: these form Sam Rushing's | |
| famous asynchronous socket library. Sam has gracefully allowed me to | |
| incorporate these in the standard Python library. | |
| - New module statvfs contains indexing constants for [f]statvfs() | |
| return tuple. | |
| Changes to the library | |
| ---------------------- | |
| - The wave module (platform-independent support for Windows sound | |
| files) has been fixed to actually make it work. | |
| - The sunau module (platform-independent support for Sun/NeXT sound | |
| files) has been fixed to work across platforms. Also, a weird | |
| encoding bug in the header of the audio test data file has been | |
| corrected. | |
| - Fix a bug in the urllib module that occasionally tripped up | |
| webchecker and other ftp retrieves. | |
| - ConfigParser's get() method now accepts an optional keyword argument | |
| (vars) that is substituted on top of the defaults that were setup in | |
| __init__. You can now also have recursive references in your | |
| configuration file. | |
| - Some improvements to the Queue module, including a put_nowait() | |
| module and an optional "block" second argument, to get() and put(), | |
| defaulting to 1. | |
| - The updated xmllib module is once again compatible with the version | |
| present in Python 1.5.1 (this was accidentally broken in 1.5.2b1). | |
| - The bdb module (base class for the debugger) now supports | |
| canonicalizing pathnames used in breakpoints. The derived class must | |
| override the new canonical() method for this to work. Also changed | |
| clear_break() to the backwards compatible old signature, and added | |
| clear_bpbynumber() for the new functionality. | |
| - In sgmllib (and hence htmllib), recognize attributes even if they | |
| don't have space in front of them. I.e. '<a | |
| name="foo"href="bar.html">' will now have two attributes recognized. | |
| - In the debugger (pdb), change clear syntax to support three | |
| alternatives: clear; clear file:line; clear bpno bpno ... | |
| - The os.path module now pretends to be a submodule within the os | |
| "package", so you can do things like "from os.path import exists". | |
| - The standard exceptions now have doc strings. | |
| - In the smtplib module, exceptions are now classes. Also avoid | |
| inserting a non-standard space after "TO" in rcpt() command. | |
| - The rfc822 module's getaddrlist() method now uses all occurrences of | |
| the specified header instead of just the first. Some other bugfixes | |
| too (to handle more weird addresses found in a very large test set, | |
| and to avoid crashes on certain invalid dates), and a small test | |
| module has been added. | |
| - Fixed bug in urlparse in the common-case code for HTTP URLs; it | |
| would lose the query, fragment, and/or parameter information. | |
| - The sndhdr module no longer supports whatraw() -- it depended on a | |
| rare extenral program. | |
| - The UserList module/class now supports the extend() method, like | |
| real list objects. | |
| - The uu module now deals better with trailing garbage generated by | |
| some broke uuencoders. | |
| - The telnet module now has a my_interact() method which uses threads | |
| instead of select. The interact() method uses this by default on | |
| Windows (where the single-threaded version doesn't work). | |
| - Add a class to mailbox.py for dealing with qmail directory | |
| mailboxes. The test code was extended to notice these being used as | |
| well. | |
| Changes to extension modules | |
| ---------------------------- | |
| - Support for the [f]statvfs() system call, where it exists. | |
| - Fixed some bugs in cPickle where bad input could cause it to dump | |
| core. | |
| - Fixed cStringIO to make the writelines() function actually work. | |
| - Added strop.expandtabs() so string.expandtabs() is now much faster. | |
| - Added fsync() and fdatasync(), if they appear to exist. | |
| - Support for "long files" (64-bit seek pointers). | |
| - Fixed a bug in the zlib module's flush() function. | |
| - Added access() system call. It returns 1 if access granted, 0 if | |
| not. | |
| - The curses module implements an optional nlines argument to | |
| w.scroll(). (It then calls wscrl(win, nlines) instead of scroll(win).) | |
| Changes to tools | |
| ---------------- | |
| - Some changes to IDLE; see Tools/idle/NEWS.txt. | |
| - Latest version of Misc/python-mode.el included. | |
| Changes to Tkinter | |
| ------------------ | |
| - Avoid tracebacks when an image is deleted after its root has been | |
| destroyed. | |
| Changes to the Python/C API | |
| --------------------------- | |
| - When parentheses are used in a PyArg_Parse[Tuple]() call, any | |
| sequence is now accepted, instead of requiring a tuple. This is in | |
| line with the general trend towards accepting arbitrary sequences. | |
| - Added PyModule_GetFilename(). | |
| - In PyNumber_Power(), remove unneeded and even harmful test for float | |
| to the negative power (which is already and better done in | |
| floatobject.c). | |
| - New version identification symbols; read patchlevel.h for info. The | |
| version numbers are now exported by Python.h. | |
| - Rolled back the API version change -- it's back to 1007! | |
| - The frozenmain.c function calls PyInitFrozenExtensions(). | |
| - Added 'N' format character to Py_BuildValue -- like 'O' but doesn't | |
| INCREF. | |
| ====================================================================== | |
| From 1.5.2a2 to 1.5.2b1 | |
| ======================= | |
| Changes to intrinsics | |
| --------------------- | |
| - New extension NotImplementedError, derived from RuntimeError. Not | |
| used, but recommended use is for "abstract" methods to raise this. | |
| - The parser will now spit out a warning or error when -t or -tt is | |
| used for parser input coming from a string, too. | |
| - The code generator now inserts extra SET_LINENO opcodes when | |
| compiling multi-line argument lists. | |
| - When comparing bound methods, use identity test on the objects, not | |
| equality test. | |
| New or improved ports | |
| --------------------- | |
| - Chris Herborth has redone his BeOS port; it now works on PowerPC | |
| (R3/R4) and x86 (R4 only). Threads work too in this port. | |
| Renaming | |
| -------- | |
| - Thanks to Chris Herborth, the thread primitives now have proper Py* | |
| names in the source code (they already had those for the linker, | |
| through some smart macros; but the source still had the old, un-Py | |
| names). | |
| Configuration/build changes | |
| --------------------------- | |
| - Improved support for FreeBSD/3. | |
| - Check for pthread_detach instead of pthread_create in libc. | |
| - The makesetup script now searches EXECINCLUDEPY before INCLUDEPY. | |
| - Misc/Makefile.pre.in now also looks at Setup.thread and Setup.local. | |
| Otherwise modules such as thread didn't get incorporated in extensions. | |
| New library modules | |
| ------------------- | |
| - shlex.py by Eric Raymond provides a lexical analyzer class for | |
| simple shell-like syntaxes. | |
| - netrc.py by Eric Raymond provides a parser for .netrc files. (The | |
| undocumented Netrc class in ftplib.py is now obsolete.) | |
| - codeop.py is a new module that contains the compile_command() | |
| function that was previously in code.py. This is so that JPython can | |
| provide its own version of this function, while still sharing the | |
| higher-level classes in code.py. | |
| - turtle.py is a new module for simple turtle graphics. I'm still | |
| working on it; let me know if you use this to teach Python to children | |
| or other novices without prior programming experience. | |
| Obsoleted library modules | |
| ------------------------- | |
| - poly.py and zmod.py have been moved to Lib/lib-old to emphasize | |
| their status of obsoleteness. They don't do a particularly good job | |
| and don't seem particularly relevant to the Python core. | |
| New tools | |
| --------- | |
| - I've added IDLE: my Integrated DeveLopment Environment for Python. | |
| Requires Tcl/Tk (and Tkinter). Works on Windows and Unix (and should | |
| work on Macintosh, but I haven't been able to test it there; it does | |
| depend on new features in 1.5.2 and perhaps even new features in | |
| 1.5.2b1, especially the new code module). This is very much a work in | |
| progress. I'd like to hear how people like it compared to PTUI (or | |
| any other IDE they are familiar with). | |
| - New tools by Barry Warsaw: | |
| = audiopy: controls the Solaris Audio device | |
| = pynche: The PYthonically Natural Color and Hue Editor | |
| = world: Print mappings between country names and DNS country codes | |
| New demos | |
| --------- | |
| - Demo/scripts/beer.py prints the lyrics to an arithmetic drinking | |
| song. | |
| - Demo/tkinter/guido/optionmenu.py shows how to do an option menu in | |
| Tkinter. (By Fredrik Lundh -- not by me!) | |
| Changes to the library | |
| ---------------------- | |
| - compileall.py now avoids recompiling .py files that haven't changed; | |
| it adds a -f option to force recompilation. | |
| - New version of xmllib.py by Sjoerd Mullender (0.2 with latest | |
| patches). | |
| - nntplib.py: statparse() no longer lowercases the message-id. | |
| - types.py: use type(__stdin__) for FileType. | |
| - urllib.py: fix translations for filenames with "funny" characters. | |
| Patch by Sjoerd Mullender. Note that if you subclass one of the | |
| URLopener classes, and you have copied code from the old urllib.py, | |
| your subclass may stop working. A long-term solution is to provide | |
| more methods so that you don't have to copy code. | |
| - cgi.py: In read_multi, allow a subclass to override the class we | |
| instantiate when we create a recursive instance, by setting the class | |
| variable 'FieldStorageClass' to the desired class. By default, this | |
| is set to None, in which case we use self.__class__ (as before). | |
| Also, a patch by Jim Fulton to pass additional arguments to recursive | |
| calls to the FieldStorage constructor from its read_multi method. | |
| - UserList.py: In __getslice__, use self.__class__ instead of | |
| UserList. | |
| - In SimpleHTTPServer.py, the server specified in test() should be | |
| BaseHTTPServer.HTTPServer, in case the request handler should want to | |
| reference the two attributes added by BaseHTTPServer.server_bind. (By | |
| Jeff Rush, for Bobo). Also open the file in binary mode, so serving | |
| images from a Windows box might actually work. | |
| - In CGIHTTPServer.py, the list of acceptable formats is -split- | |
| on spaces but -joined- on commas, resulting in double commas | |
| in the joined text. (By Jeff Rush.) | |
| - SocketServer.py, patch by Jeff Bauer: a minor change to declare two | |
| new threaded versions of Unix Server classes, using the ThreadingMixIn | |
| class: ThreadingUnixStreamServer, ThreadingUnixDatagramServer. | |
| - bdb.py: fix bomb on deleting a temporary breakpoint: there's no | |
| method do_delete(); do_clear() was meant. By Greg Ward. | |
| - getopt.py: accept a non-list sequence for the long options (request | |
| by Jack Jansen). Because it might be a common mistake to pass a | |
| single string, this situation is treated separately. Also added | |
| docstrings (copied from the library manual) and removed the (now | |
| redundant) module comments. | |
| - tempfile.py: improvements to avoid security leaks. | |
| - code.py: moved compile_command() to new module codeop.py. | |
| - pickle.py: support pickle format 1.3 (binary float added). By Jim | |
| Fulton. Also get rid of the undocumented obsolete Pickler dump_special | |
| method. | |
| - uu.py: Move 'import sys' to top of module, as noted by Tim Peters. | |
| - imaplib.py: fix problem with some versions of IMAP4 servers that | |
| choose to mix the case in their CAPABILITIES response. | |
| - cmp.py: use (f1, f2) as cache key instead of f1 + ' ' + f2. Noted | |
| by Fredrik Lundh. | |
| Changes to extension modules | |
| ---------------------------- | |
| - More doc strings for several modules were contributed by Chris | |
| Petrilli: math, cmath, fcntl. | |
| - Fixed a bug in zlibmodule.c that could cause core dumps on | |
| decompression of rarely occurring input. | |
| - cPickle.c: new version from Jim Fulton, with Open Source copyright | |
| notice. Also, initialize self->safe_constructors early on to prevent | |
| crash in early dealloc. | |
| - cStringIO.c: new version from Jim Fulton, with Open Source copyright | |
| notice. Also fixed a core dump in cStringIO.c when doing seeks. | |
| - mpzmodule.c: fix signed character usage in mpz.mpz(stringobjecty). | |
| - readline.c: Bernard Herzog pointed out that rl_parse_and_bind | |
| modifies its argument string (bad function!), so we make a temporary | |
| copy. | |
| - sunaudiodev.c: Barry Warsaw added more smarts to get the device and | |
| control pseudo-device, per audio(7I). | |
| Changes to tools | |
| ---------------- | |
| - New, improved version of Barry Warsaw's Misc/python-mode.el (editing | |
| support for Emacs). | |
| - tabnanny.py: added a -q ('quiet') option to tabnanny, which causes | |
| only the names of offending files to be printed. | |
| - freeze: when printing missing modules, also print the module they | |
| were imported from. | |
| - untabify.py: patch by Detlef Lannert to implement -t option | |
| (set tab size). | |
| Changes to Tkinter | |
| ------------------ | |
| - grid_bbox(): support new Tk API: grid bbox ?column row? ?column2 | |
| row2? | |
| - _tkinter.c: RajGopal Srinivasan noted that the latest code (1.5.2a2) | |
| doesn't work when running in a non-threaded environment. He added | |
| some #ifdefs that fix this. | |
| Changes to the Python/C API | |
| --------------------------- | |
| - Bumped API version number to 1008 -- enough things have changed! | |
| - There's a new macro, PyThreadState_GET(), which does the same work | |
| as PyThreadState_Get() without the overhead of a function call (it | |
| also avoids the error check). The two top calling locations of | |
| PyThreadState_Get() have been changed to use this macro. | |
| - All symbols intended for export from a DLL or shared library are now | |
| marked as such (with the DL_IMPORT() macro) in the header file that | |
| declares them. This was needed for the BeOS port, and should also | |
| make some other ports easier. The PC port no longer needs the file | |
| with exported symbols (PC/python_nt.def). There's also a DL_EXPORT | |
| macro which is only used for init methods in extension modules, and | |
| for Py_Main(). | |
| Invisible changes to internals | |
| ------------------------------ | |
| - Fixed a bug in new_buffersize() in fileobject.c which could | |
| return a buffer size that was way too large. | |
| - Use PySys_WriteStderr instead of fprintf in most places. | |
| - dictobject.c: remove dead code discovered by Vladimir Marangozov. | |
| - tupleobject.c: make tuples less hungry -- an extra item was | |
| allocated but never used. Tip by Vladimir Marangozov. | |
| - mymath.h: Metrowerks PRO4 finally fixes the hypot snafu. (Jack | |
| Jansen) | |
| - import.c: Jim Fulton fixes a reference count bug in | |
| PyEval_GetGlobals. | |
| - glmodule.c: check in the changed version after running the stubber | |
| again -- this solves the conflict with curses over the 'clear' entry | |
| point much nicer. (Jack Jansen had checked in the changes to cstubs | |
| eons ago, but I never regenerated glmodule.c :-( ) | |
| - frameobject.c: fix reference count bug in PyFrame_New. Vladimir | |
| Marangozov. | |
| - stropmodule.c: add a missing DECREF in an error exit. Submitted by | |
| Jonathan Giddy. | |
| ====================================================================== | |
| From 1.5.2a1 to 1.5.2a2 | |
| ======================= | |
| General | |
| ------- | |
| - It is now a syntax error to have a function argument without a | |
| default following one with a default. | |
| - __file__ is now set to the .py file if it was parsed (it used to | |
| always be the .pyc/.pyo file). | |
| - Don't exit with a fatal error during initialization when there's a | |
| problem with the exceptions.py module. | |
| - New environment variable PYTHONOPTIMIZE can be used to set -O. | |
| - New version of python-mode.el for Emacs. | |
| Miscellaneous fixed bugs | |
| ------------------------ | |
| - No longer print the (confusing) error message about stack underflow | |
| while compiling. | |
| - Some threading and locking bugs fixed. | |
| - When errno is zero, report "Error", not "Success". | |
| Documentation | |
| ------------- | |
| - Documentation will be released separately. | |
| - Doc strings added to array and md5 modules by Chris Petrilli. | |
| Ports and build procedure | |
| ------------------------- | |
| - Stop installing when a move or copy fails. | |
| - New version of the OS/2 port code by Jeff Rush. | |
| - The makesetup script handles absolute filenames better. | |
| - The 'new' module is now enabled by default in the Setup file. | |
| - I *think* I've solved the problem with the Linux build blowing up | |
| sometimes due to a conflict between sigcheck/intrcheck and | |
| signalmodule. | |
| Built-in functions | |
| ------------------ | |
| - The second argument to apply() can now be any sequence, not just a | |
| tuple. | |
| Built-in types | |
| -------------- | |
| - Lists have a new method: L1.extend(L2) is equivalent to the common | |
| idiom L1[len(L1):] = L2. | |
| - Better error messages when a sequence is indexed with a non-integer. | |
| - Better error message when calling a non-callable object (include | |
| the type in the message). | |
| Python services | |
| --------------- | |
| - New version of cPickle.c fixes some bugs. | |
| - pickle.py: improved instantiation error handling. | |
| - code.py: reworked quite a bit. New base class | |
| InteractiveInterpreter and derived class InteractiveConsole. Fixed | |
| several problems in compile_command(). | |
| - py_compile.py: print error message and continue on syntax errors. | |
| Also fixed an old bug with the fstat code (it was never used). | |
| - pyclbr.py: support submodules of packages. | |
| String Services | |
| --------------- | |
| - StringIO.py: raise the right exception (ValueError) for attempted | |
| I/O on closed StringIO objects. | |
| - re.py: fixed a bug in subn(), which caused .groups() to fail inside | |
| the replacement function called by sub(). | |
| - The struct module has a new format 'P': void * in native mode. | |
| Generic OS Services | |
| ------------------- | |
| - Module time: Y2K robustness. 2-digit year acceptance depends on | |
| value of time.accept2dyear, initialized from env var PYTHONY2K, | |
| default 0. Years 00-68 mean 2000-2068, while 69-99 mean 1969-1999 | |
| (POSIX or X/Open recommendation). | |
| - os.path: normpath(".//x") should return "x", not "/x". | |
| - getpass.py: fall back on default_getpass() when sys.stdin.fileno() | |
| doesn't work. | |
| - tempfile.py: regenerate the template after a fork() call. | |
| Optional OS Services | |
| -------------------- | |
| - In the signal module, disable restarting interrupted system calls | |
| when we have siginterrupt(). | |
| Debugger | |
| -------- | |
| - No longer set __args__; this feature is no longer supported and can | |
| affect the debugged code. | |
| - cmd.py, pdb.py and bdb.py have been overhauled by Richard Wolff, who | |
| added aliases and some other useful new features, e.g. much better | |
| breakpoint support: temporary breakpoint, disabled breakpoints, | |
| breakpoints with ignore counts, and conditions; breakpoints can be set | |
| on a file before it is loaded. | |
| Profiler | |
| -------- | |
| - Changes so that JPython can use it. Also fix the calibration code | |
| so it actually works again | |
| . | |
| Internet Protocols and Support | |
| ------------------------------ | |
| - imaplib.py: new version from Piers Lauder. | |
| - smtplib.py: change sendmail() method to accept a single string or a | |
| list or strings as the destination (common newbie mistake). | |
| - poplib.py: LIST with a msg argument fixed. | |
| - urlparse.py: some optimizations for common case (http). | |
| - urllib.py: support content-length in info() for ftp protocol; | |
| support for a progress meter through a third argument to | |
| urlretrieve(); commented out gopher test (the test site is dead). | |
| Internet Data handling | |
| ---------------------- | |
| - sgmllib.py: support tags with - or . in their name. | |
| - mimetypes.py: guess_type() understands 'data' URLs. | |
| Restricted Execution | |
| -------------------- | |
| - The classes rexec.RModuleLoader and rexec.RModuleImporter no | |
| longer exist. | |
| Tkinter | |
| ------- | |
| - When reporting an exception, store its info in sys.last_*. Also, | |
| write all of it to stderr. | |
| - Added NS, EW, and NSEW constants, for grid's sticky option. | |
| - Fixed last-minute bug in 1.5.2a1 release: need to include "mytime.h". | |
| - Make bind variants without a sequence return a tuple of sequences | |
| (formerly it returned a string, which wasn't very convenient). | |
| - Add image commands to the Text widget (these are new in Tk 8.0). | |
| - Added new listbox and canvas methods: {xview,yview}_{scroll,moveto}.) | |
| - Improved the thread code (but you still can't call update() from | |
| another thread on Windows). | |
| - Fixed unnecessary references to _default_root in the new dialog | |
| modules. | |
| - Miscellaneous problems fixed. | |
| Windows General | |
| --------------- | |
| - Call LoadLibraryEx(..., ..., LOAD_WITH_ALTERED_SEARCH_PATH) to | |
| search for dependent dlls in the directory containing the .pyd. | |
| - In debugging mode, call DebugBreak() in Py_FatalError(). | |
| Windows Installer | |
| ----------------- | |
| - Install zlib.dll in the DLLs directory instead of in the win32 | |
| system directory, to avoid conflicts with other applications that have | |
| their own zlib.dll. | |
| Test Suite | |
| ---------- | |
| - test_long.py: new test for long integers, by Tim Peters. | |
| - regrtest.py: improved so it can be used for other test suites as | |
| well. | |
| - test_strftime.py: use re to compare test results, to support legal | |
| variants (e.g. on Linux). | |
| Tools and Demos | |
| --------------- | |
| - Four new scripts in Tools/scripts: crlf.py and lfcr.py (to | |
| remove/add Windows style '\r\n' line endings), untabify.py (to remove | |
| tabs), and rgrep.yp (reverse grep). | |
| - Improvements to Tools/freeze/. Each Python module is now written to | |
| its own C file. This prevents some compilers or assemblers from | |
| blowing up on large frozen programs, and saves recompilation time if | |
| only a few modules are changed. Other changes too, e.g. new command | |
| line options -x and -i. | |
| - Much improved (and smaller!) version of Tools/scripts/mailerdaemon.py. | |
| Python/C API | |
| ------------ | |
| - New mechanism to support extensions of the type object while | |
| remaining backward compatible with extensions compiled for previous | |
| versions of Python 1.5. A flags field indicates presence of certain | |
| fields. | |
| - Addition to the buffer API to differentiate access to bytes and | |
| 8-bit characters (in anticipation of Unicode characters). | |
| - New argument parsing format t# ("text") to indicate 8-bit | |
| characters; s# simply means 8-bit bytes, for backwards compatibility. | |
| - New object type, bufferobject.c is an example and can be used to | |
| create buffers from memory. | |
| - Some support for 64-bit longs, including some MS platforms. | |
| - Many calls to fprintf(stderr, ...) have been replaced with calls to | |
| PySys_WriteStderr(...). | |
| - The calling context for PyOS_Readline() has changed: it must now be | |
| called with the interpreter lock held! It releases the lock around | |
| the call to the function pointed to by PyOS_ReadlineFunctionPointer | |
| (default PyOS_StdioReadline()). | |
| - New APIs PyLong_FromVoidPtr() and PyLong_AsVoidPtr(). | |
| - Renamed header file "thread.h" to "pythread.h". | |
| - The code string of code objects may now be anything that supports the | |
| buffer API. | |
| ====================================================================== | |
| From 1.5.1 to 1.5.2a1 | |
| ===================== | |
| General | |
| ------- | |
| - When searching for the library, a landmark that is a compiled module | |
| (string.pyc or string.pyo) is also accepted. | |
| - When following symbolic links to the python executable, use a loop | |
| so that a symlink to a symlink can work. | |
| - Added a hack so that when you type 'quit' or 'exit' at the | |
| interpreter, you get a friendly explanation of how to press Ctrl-D (or | |
| Ctrl-Z) to exit. | |
| - New and improved Misc/python-mode.el (Python mode for Emacs). | |
| - Revert a new feature in Unix dynamic loading: for one or two | |
| revisions, modules were loaded using the RTLD_GLOBAL flag. It turned | |
| out to be a bad idea. | |
| Miscellaneous fixed bugs | |
| ------------------------ | |
| - All patches on the patch page have been integrated. (But much more | |
| has been done!) | |
| - Several memory leaks plugged (e.g. the one for classes with a | |
| __getattr__ method). | |
| - Removed the only use of calloc(). This triggered an obscure bug on | |
| multiprocessor Sparc Solaris 2.6. | |
| - Fix a peculiar bug that would allow "import sys.time" to succeed | |
| (believing the built-in time module to be a part of the sys package). | |
| - Fix a bug in the overflow checking when converting a Python long to | |
| a C long (failed to convert -2147483648L, and some other cases). | |
| Documentation | |
| ------------- | |
| - Doc strings have been added to many extension modules: __builtin__, | |
| errno, select, signal, socket, sys, thread, time. Also to methods of | |
| list objects (try [].append.__doc__). A doc string on a type will now | |
| automatically be propagated to an instance if the instance has methods | |
| that are accessed in the usual way. | |
| - The documentation has been expanded and the formatting improved. | |
| (Remember that the documentation is now unbundled and has its own | |
| release cycle though; see http://www.python.org/doc/.) | |
| - Added Misc/Porting -- a mini-FAQ on porting to a new platform. | |
| Ports and build procedure | |
| ------------------------- | |
| - The BeOS port is now integrated. Courtesy Chris Herborth. | |
| - Symbol files for FreeBSD 2.x and 3.x have been contributed | |
| (Lib/plat-freebsd[23]/*). | |
| - Support HPUX 10.20 DCE threads. | |
| - Finally fixed the configure script so that (on SGI) if -OPT:Olimit=0 | |
| works, it won't also use -Olimit 1500 (which gives a warning for every | |
| file). Also support the SGI_ABI environment variable better. | |
| - The makesetup script now understands absolute pathnames ending in .o | |
| in the module -- it assumes it's a file for which we have no source. | |
| - Other miscellaneous improvements to the configure script and | |
| Makefiles. | |
| - The test suite now uses a different sound sample. | |
| Built-in functions | |
| ------------------ | |
| - Better checks for invalid input to int(), long(), string.atoi(), | |
| string.atol(). (Formerly, a sign without digits would be accepted as | |
| a legal ways to spell zero.) | |
| - Changes to map() and filter() to use the length of a sequence only | |
| as a hint -- if an IndexError happens earlier, take that. (Formerly, | |
| this was considered an error.) | |
| - Experimental feature in getattr(): a third argument can specify a | |
| default (instead of raising AttributeError). | |
| - Implement round() slightly different, so that for negative ndigits | |
| no additional errors happen in the last step. | |
| - The open() function now adds the filename to the exception when it | |
| fails. | |
| Built-in exceptions | |
| ------------------- | |
| - New standard exceptions EnvironmentError and PosixError. | |
| EnvironmentError is the base class for IOError and PosixError; | |
| PosixError is the same as os.error. All this so that either exception | |
| class can be instantiated with a third argument indicating a filename. | |
| The built-in function open() and most os/posix functions that take a | |
| filename argument now use this. | |
| Built-in types | |
| -------------- | |
| - List objects now have an experimental pop() method; l.pop() returns | |
| and removes the last item; l.pop(i) returns and removes the item at | |
| i. Also, the sort() method is faster again. Sorting is now also | |
| safer: it is impossible for the sorting function to modify the list | |
| while the sort is going on (which could cause core dumps). | |
| - Changes to comparisons: numbers are now smaller than any other type. | |
| This is done to prevent the circularity where [] < 0L < 1 < [] is | |
| true. As a side effect, cmp(None, 0) is now positive instead of | |
| negative. This *shouldn't* affect any working code, but I've found | |
| that the change caused several "sleeping" bugs to become active, so | |
| beware! | |
| - Instance methods may now have other callable objects than just | |
| Python functions as their im_func. Use new.instancemethod() or write | |
| your own C code to create them; new.instancemethod() may be called | |
| with None for the instance to create an unbound method. | |
| - Assignment to __name__, __dict__ or __bases__ of a class object is | |
| now allowed (with stringent type checks); also allow assignment to | |
| __getattr__ etc. The cached values for __getattr__ etc. are | |
| recomputed after such assignments (but not for derived classes :-( ). | |
| - Allow assignment to some attributes of function objects: func_code, | |
| func_defaults and func_doc / __doc__. (With type checks except for | |
| __doc__ / func_doc .) | |
| Python services | |
| --------------- | |
| - New tests (in Lib/test): reperf.py (regular expression benchmark), | |
| sortperf.py (list sorting benchmark), test_MimeWriter.py (test case | |
| for the MimeWriter module). | |
| - Generalized test/regrtest.py so that it is useful for testing other | |
| packages. | |
| - The ihooks.py module now understands package imports. | |
| - In code.py, add a class that subsumes Fredrik Lundh's | |
| PythonInterpreter class. The interact() function now uses this. | |
| - In rlcompleter.py, in completer(), return None instead of raising an | |
| IndexError when there are no more completions left. | |
| - Fixed the marshal module to test for certain common kinds of invalid | |
| input. (It's still not foolproof!) | |
| - In the operator module, add an alias (now the preferred name) | |
| "contains" for "sequenceincludes". | |
| String Services | |
| --------------- | |
| - In the string and strop modules, in the replace() function, treat an | |
| empty pattern as an error (since it's not clear what was meant!). | |
| - Some speedups to re.py, especially the string substitution and split | |
| functions. Also added new function/method findall(), to find all | |
| occurrences of a given substring. | |
| - In cStringIO, add better argument type checking and support the | |
| readonly 'closed' attribute (like regular files). | |
| - In the struct module, unsigned 1-2 byte sized formats no longer | |
| result in long integer values. | |
| Miscellaneous services | |
| ---------------------- | |
| - In whrandom.py, added new method and function randrange(), same as | |
| choice(range(start, stop, step)) but faster. This addresses the | |
| problem that randint() was accidentally defined as taking an inclusive | |
| range. Also, randint(a, b) is now redefined as randrange(a, b+1), | |
| adding extra range and type checking to its arguments! | |
| - Add some semi-thread-safety to random.gauss() (it used to be able to | |
| crash when invoked from separate threads; now the worst it can do is | |
| give a duplicate result occasionally). | |
| - Some restructuring and generalization done to cmd.py. | |
| - Major upgrade to ConfigParser.py; converted to using 're', added new | |
| exceptions, support underscore in section header and option name. No | |
| longer add 'name' option to every section; instead, add '__name__'. | |
| - In getpass.py, don't use raw_input() to ask for the password -- we | |
| don't want it to show up in the readline history! Also don't catch | |
| interrupts (the try-finally already does all necessary cleanup). | |
| Generic OS Services | |
| ------------------- | |
| - New functions in os.py: makedirs(), removedirs(), renames(). New | |
| variable: linesep (the line separator as found in binary files, | |
| i.e. '\n' on Unix, '\r\n' on DOS/Windows, '\r' on Mac. Do *not* use | |
| this with files opened in (default) text mode; the line separator used | |
| will always be '\n'! | |
| - Changes to the 'os.path' submodule of os.py: added getsize(), | |
| getmtime(), getatime() -- these fetch the most popular items from the | |
| stat return tuple. | |
| - In the time module, add strptime(), if it exists. (This parses a | |
| time according to a format -- the inverse of strftime().) Also, | |
| remove the call to mktime() from strftime() -- it messed up the | |
| formatting of some non-local times. | |
| - In the socket module, added a new function gethostbyname_ex(). | |
| Also, don't use #ifdef to test for some symbols that are enums on some | |
| platforms (and should exist everywhere). | |
| Optional OS Services | |
| -------------------- | |
| - Some fixes to gzip.py. In particular, the readlines() method now | |
| returns the lines *with* trailing newline characters, like readlines() | |
| of regular file objects. Also, it didn't work together with cPickle; | |
| fixed that. | |
| - In whichdb.py, support byte-swapped dbhash (bsddb) files. | |
| - In anydbm.py, look at the type of an existing database to determine | |
| which module to use to open it. (The anydbm.error exception is now a | |
| tuple.) | |
| Unix Services | |
| ------------- | |
| - In the termios module, in tcsetattr(), initialize the structure vy | |
| calling tcgetattr(). | |
| - Added some of the "wait status inspection" macros as functions to | |
| the posix module (and thus to the os module): WEXITSTATUS(), | |
| WIFEXITED(), WIFSIGNALED(), WIFSTOPPED(), WSTOPSIG(), WTERMSIG(). | |
| - In the syslog module, make the default facility more intuitive | |
| (matching the docs). | |
| Debugger | |
| -------- | |
| - In pdb.py, support for setting breaks on files/modules that haven't | |
| been loaded yet. | |
| Internet Protocols and Support | |
| ------------------------------ | |
| - Changes in urllib.py; sped up unquote() and quote(). Fixed an | |
| obscure bug in quote_plus(). Added urlencode(dict) -- convenience | |
| function for sending a POST request with urlopen(). Use the getpass | |
| module to ask for a password. Rewrote the (test) main program so that | |
| when used as a script, it can retrieve one or more URLs to stdout. | |
| Use -t to run the self-test. Made the proxy code work again. | |
| - In cgi.py, treat "HEAD" the same as "GET", so that CGI scripts don't | |
| fail when someone asks for their HEAD. Also, for POST, set the | |
| default content-type to application/x-www-form-urlencoded. Also, in | |
| FieldStorage.__init__(), when method='GET', always get the query | |
| string from environ['QUERY_STRING'] or sys.argv[1] -- ignore an | |
| explicitly passed in fp. | |
| - The smtplib.py module now supports ESMTP and has improved standard | |
| compliance, for picky servers. | |
| - Improved imaplib.py. | |
| - Fixed UDP support in SocketServer.py (it never worked). | |
| - Fixed a small bug in CGIHTTPServer.py. | |
| Internet Data handling | |
| ---------------------- | |
| - In rfc822.py, add a new class AddressList. Also support a new | |
| overridable method, isheader(). Also add a get() method similar to | |
| dictionaries (and make getheader() an alias for it). Also, be smarter | |
| about seekable (test whether fp.tell() works) and test for presence of | |
| unread() method before trying seeks. | |
| - In sgmllib.py, restore the call to report_unbalanced() that was lost | |
| long ago. Also some other improvements: handle <? processing | |
| instructions >, allow . and - in entity names, and allow \r\n as line | |
| separator. | |
| - Some restructuring and generalization done to multifile.py; support | |
| a 'seekable' flag. | |
| Restricted Execution | |
| -------------------- | |
| - Improvements to rexec.py: package support; support a (minimal) | |
| sys.exc_info(). Also made the (test) main program a bit fancier (you | |
| can now use it to run arbitrary Python scripts in restricted mode). | |
| Tkinter | |
| ------- | |
| - On Unix, Tkinter can now safely be used from a multi-threaded | |
| application. (Formerly, no threads would make progress while | |
| Tkinter's mainloop() was active, because it didn't release the Python | |
| interpreter lock.) Unfortunately, on Windows, threads other than the | |
| main thread should not call update() or update_idletasks() because | |
| this will deadlock the application. | |
| - An interactive interpreter that uses readline and Tkinter no longer | |
| uses up all available CPU time. | |
| - Even if readline is not used, Tk windows created in an interactive | |
| interpreter now get continuously updated. (This even works in Windows | |
| as long as you don't hit a key.) | |
| - New demos in Demo/tkinter/guido/: brownian.py, redemo.py, switch.py. | |
| - No longer register Tcl_finalize() as a low-level exit handler. It | |
| may call back into Python, and that's a bad idea. | |
| - Allow binding of Tcl commands (given as a string). | |
| - Some minor speedups; replace explicitly coded getint() with int() in | |
| most places. | |
| - In FileDialog.py, remember the directory of the selected file, if | |
| given. | |
| - Change the names of all methods in the Wm class: they are now | |
| wm_title(), etc. The old names (title() etc.) are still defined as | |
| aliases. | |
| - Add a new method of interpreter objects, interpaddr(). This returns | |
| the address of the Tcl interpreter object, as an integer. Not very | |
| useful for the Python programmer, but this can be called by another C | |
| extension that needs to make calls into the Tcl/Tk C API and needs to | |
| get the address of the Tcl interpreter object. A simple cast of the | |
| return value to (Tcl_Interp *) will do the trick. | |
| Windows General | |
| --------------- | |
| - Don't insist on proper case for module source files if the filename | |
| is all uppercase (e.g. FOO.PY now matches foo; but FOO.py still | |
| doesn't). This should address problems with this feature on | |
| oldfashioned filesystems (Novell servers?). | |
| Windows Library | |
| --------------- | |
| - os.environ is now all uppercase, but accesses are case insensitive, | |
| and the putenv() calls made as a side effect of changing os.environ | |
| are case preserving. | |
| - Removed samefile(), sameopenfile(), samestat() from os.path (aka | |
| ntpath.py) -- these cannot be made to work reliably (at least I | |
| wouldn't know how). | |
| - Fixed os.pipe() so that it returns file descriptors acceptable to | |
| os.read() and os.write() (like it does on Unix), rather than Windows | |
| file handles. | |
| - Added a table of WSA error codes to socket.py. | |
| - In the select module, put the (huge) file descriptor arrays on the | |
| heap. | |
| - The getpass module now raises KeyboardInterrupt when it sees ^C. | |
| - In mailbox.py, fix tell/seek when using files opened in text mode. | |
| - In rfc822.py, fix tell/seek when using files opened in text mode. | |
| - In the msvcrt extension module, release the interpreter lock for | |
| calls that may block: _locking(), _getch(), _getche(). Also fix a | |
| bogus error return when open_osfhandle() doesn't have the right | |
| argument list. | |
| Windows Installer | |
| ----------------- | |
| - The registry key used is now "1.5" instead of "1.5.x" -- so future | |
| versions of 1.5 and Mark Hammond's win32all installer don't need to be | |
| resynchronized. | |
| Windows Tools | |
| ------------- | |
| - Several improvements to freeze specifically for Windows. | |
| Windows Build Procedure | |
| ----------------------- | |
| - The VC++ project files and the WISE installer have been moved to the | |
| PCbuild subdirectory, so they are distributed in the same subdirectory | |
| where they must be used. This avoids confusion. | |
| - New project files for Windows 3.1 port by Jim Ahlstrom. | |
| - Got rid of the obsolete subdirectory PC/setup_nt/. | |
| - The projects now use distinct filenames for the .exe, .dll, .lib and | |
| .pyd files built in debug mode (by appending "_d" to the base name, | |
| before the extension). This makes it easier to switch between the two | |
| and get the right versions. There's a pragma in config.h that directs | |
| the linker to include the appropriate .lib file (so python15.lib no | |
| longer needs to be explicit in your project). | |
| - The installer now installs more files (e.g. config.h). The idea is | |
| that you shouldn't need the source distribution if you want build your | |
| own extensions in C or C++. | |
| Tools and Demos | |
| --------------- | |
| - New script nm2def.py by Marc-Andre Lemburg, to construct | |
| PC/python_nt.def automatically (some hand editing still required). | |
| - New tool ndiff.py: Tim Peters' text diffing tool. | |
| - Various and sundry improvements to the freeze script. | |
| - The script texi2html.py (which was part of the Doc tree but is no | |
| longer used there) has been moved to the Tools/scripts subdirectory. | |
| - Some generalizations in the webchecker code. There's now a | |
| primnitive gui for websucker.py: wsgui.py. (In Tools/webchecker/.) | |
| - The ftpmirror.py script now handles symbolic links properly, and | |
| also files with multiple spaces in their names. | |
| - The 1.5.1 tabnanny.py suffers an assert error if fed a script whose | |
| last line is both indented and lacks a newline. This is now fixed. | |
| Python/C API | |
| ------------ | |
| - Added missing prototypes for PyEval_CallFunction() and | |
| PyEval_CallMethod(). | |
| - New macro PyList_SET_ITEM(). | |
| - New macros to access object members for PyFunction, PyCFunction | |
| objects. | |
| - New APIs PyImport_AppendInittab() and PyImport_ExtendInittab() to | |
| dynamically add one or many entries to the table of built-in modules. | |
| - New macro Py_InitModule3(name, methods, doc) which calls | |
| Py_InitModule4() with appropriate arguments. (The -4 variant requires | |
| you to pass an obscure version number constant which is always the same.) | |
| - New APIs PySys_WriteStdout() and PySys_WriteStderr() to write to | |
| sys.stdout or sys.stderr using a printf-like interface. (Used in | |
| _tkinter.c, for example.) | |
| - New APIs for conversion between Python longs and C 'long long' if | |
| your compiler supports it. | |
| - PySequence_In() is now called PySequence_Contains(). | |
| (PySequence_In() is still supported for b/w compatibility; it is | |
| declared obsolete because its argument order is confusing.) | |
| - PyDict_GetItem() and PyDict_GetItemString() are changed so that they | |
| *never* raise an exception -- (even if the hash() fails, simply clear | |
| the error). This was necessary because there is lots of code out | |
| there that already assumes this. | |
| - Changes to PySequence_Tuple() and PySequence_List() to use the | |
| length of a sequence only as a hint -- if an IndexError happens | |
| earlier, take that. (Formerly, this was considered an error.) | |
| - Reformatted abstract.c to give it a more familiar "look" and fixed | |
| many error checking bugs. | |
| - Add NULL pointer checks to all calls of a C function through a type | |
| object and extensions (e.g. nb_add). | |
| - The code that initializes sys.path now calls Py_GetPythonHome() | |
| instead of getenv("PYTHONHOME"). This, together with the new API | |
| Py_SetPythonHome(), makes it easier for embedding applications to | |
| change the notion of Python's "home" directory (where the libraries | |
| etc. are sought). | |
| - Fixed a very old bug in the parsing of "O?" format specifiers. | |
| ====================================================================== | |
| ======================================== | |
| ==> Release 1.5.1 (October 31, 1998) <== | |
| ======================================== | |
| From 1.5 to 1.5.1 | |
| ================= | |
| General | |
| ------- | |
| - The documentation is now unbundled. It has also been extensively | |
| modified (mostly to implement a new and more uniform formatting | |
| style). We figure that most people will prefer to download one of the | |
| preformatted documentation sets (HTML, PostScript or PDF) and that | |
| only a minority have a need for the LaTeX or FrameMaker sources. Of | |
| course, the unbundled documentation sources still released -- just not | |
| in the same archive file, and perhaps not on the same date. | |
| - All bugs noted on the errors page (and many unnoted) are fixed. All | |
| new bugs take their places. | |
| - No longer a core dump when attempting to print (or repr(), or str()) | |
| a list or dictionary that contains an instance of itself; instead, the | |
| recursive entry is printed as [...] or {...}. See Py_ReprEnter() and | |
| Py_ReprLeave() below. Comparisons of such objects still go beserk, | |
| since this requires a different kind of fix; fortunately, this is a | |
| less common scenario in practice. | |
| Syntax change | |
| ------------- | |
| - The raise statement can now be used without arguments, to re-raise | |
| a previously set exception. This should be used after catching an | |
| exception with an except clause only, either in the except clause or | |
| later in the same function. | |
| Import and module handling | |
| -------------------------- | |
| - The implementation of import has changed to use a mutex (when | |
| threading is supported). This means that when two threads | |
| simultaneously import the same module, the import statements are | |
| serialized. Recursive imports are not affected. | |
| - Rewrote the finalization code almost completely, to be much more | |
| careful with the order in which modules are destroyed. Destructors | |
| will now generally be able to reference built-in names such as None | |
| without trouble. | |
| - Case-insensitive platforms such as Mac and Windows require the case | |
| of a module's filename to match the case of the module name as | |
| specified in the import statement (see below). | |
| - The code for figuring out the default path now distinguishes between | |
| files, modules, executable files, and directories. When expecting a | |
| module, we also look for the .pyc or .pyo file. | |
| Parser/tokenizer changes | |
| ------------------------ | |
| - The tokenizer can now warn you when your source code mixes tabs and | |
| spaces for indentation in a manner that depends on how much a tab is | |
| worth in spaces. Use "python -t" or "python -v" to enable this | |
| option. Use "python -tt" to turn the warnings into errors. (See also | |
| tabnanny.py and tabpolice.py below.) | |
| - Return unsigned characters from tok_nextc(), so '\377' isn't | |
| mistaken for an EOF character. | |
| - Fixed two pernicious bugs in the tokenizer that only affected AIX. | |
| One was actually a general bug that was triggered by AIX's smaller I/O | |
| buffer size. The other was a bug in the AIX optimizer's loop | |
| unrolling code; swapping two statements made the problem go away. | |
| Tools, demos and miscellaneous files | |
| ------------------------------------ | |
| - There's a new version of Misc/python-mode.el (the Emacs mode for | |
| Python) which is much smarter about guessing the indentation style | |
| used in a particular file. Lots of other cool features too! | |
| - There are two new tools in Tools/scripts: tabnanny.py and | |
| tabpolice.py, implementing two different ways of checking whether a | |
| file uses indentation in a way that is sensitive to the interpretation | |
| of a tab. The preferred module is tabnanny.py (by Tim Peters). | |
| - Some new demo programs: | |
| Demo/tkinter/guido/paint.py -- Dave Mitchell | |
| Demo/sockets/unixserver.py -- Piet van Oostrum | |
| - Much better freeze support. The freeze script can now freeze | |
| hierarchical module names (with a corresponding change to import.c), | |
| and has a few extra options (e.g. to suppress freezing specific | |
| modules). It also does much more on Windows NT. | |
| - Version 1.0 of the faq wizard is included (only very small changes | |
| since version 0.9.0). | |
| - New feature for the ftpmirror script: when removing local files | |
| (i.e., only when -r is used), do a recursive delete. | |
| Configuring and building Python | |
| ------------------------------- | |
| - Get rid of the check for -linet -- recent Sequent Dynix systems don't | |
| need this any more and apparently it screws up their configuration. | |
| - Some changes because gcc on SGI doesn't support '-all'. | |
| - Changed the build rules to use $(LIBRARY) instead of | |
| -L.. -lpython$(VERSION) | |
| since the latter trips up the SunOS 4.1.x linker (sigh). | |
| - Fix the bug where the '# dgux is broken' comment in the Makefile | |
| tripped over Make on some platforms. | |
| - Changes for AIX: install the python.exp file; properly use | |
| $(srcdir); the makexp_aix script now removes C++ entries of the form | |
| Class::method. | |
| - Deleted some Makefile targets only used by the (long obsolete) | |
| gMakefile hacks. | |
| Extension modules | |
| ----------------- | |
| - Performance and threading improvements to the socket and bsddb | |
| modules, by Christopher Lindblad of Infoseek. | |
| - Added operator.__not__ and operator.not_. | |
| - In the thread module, when a thread exits due to an unhandled | |
| exception, don't store the exception information in sys.last_*; it | |
| prevents proper calling of destructors of local variables. | |
| - Fixed a number of small bugs in the cPickle module. | |
| - Changed find() and rfind() in the strop module so that | |
| find("x","",2) returns -1, matching the implementation in string.py. | |
| - In the time module, be more careful with the result of ctime(), and | |
| test for HAVE_MKTIME before usinmg mktime(). | |
| - Doc strings contributed by Mitch Chapman to the termios, pwd, gdbm | |
| modules. | |
| - Added the LOG_SYSLOG constant to the syslog module, if defined. | |
| Standard library modules | |
| ------------------------ | |
| - All standard library modules have been converted to an indentation | |
| style using either only tabs or only spaces -- never a mixture -- if | |
| they weren't already consistent according to tabnanny. This means | |
| that the new -t option (see above) won't complain about standard | |
| library modules. | |
| - New standard library modules: | |
| threading -- GvR and the thread-sig | |
| Java style thread objects -- USE THIS!!! | |
| getpass -- Piers Lauder | |
| simple utilities to prompt for a password and to | |
| retrieve the current username | |
| imaplib -- Piers Lauder | |
| interface for the IMAP4 protocol | |
| poplib -- David Ascher, Piers Lauder | |
| interface for the POP3 protocol | |
| smtplib -- Dragon De Monsyne | |
| interface for the SMTP protocol | |
| - Some obsolete modules moved to a separate directory (Lib/lib-old) | |
| which is *not* in the default module search path: | |
| Para | |
| addpack | |
| codehack | |
| fmt | |
| lockfile | |
| newdir | |
| ni | |
| rand | |
| tb | |
| - New version of the PCRE code (Perl Compatible Regular Expressions -- | |
| the re module and the supporting pcre extension) by Andrew Kuchling. | |
| Incompatible new feature in re.sub(): the handling of escapes in the | |
| replacement string has changed. | |
| - Interface change in the copy module: a __deepcopy__ method is now | |
| called with the memo dictionary as an argument. | |
| - Feature change in the tokenize module: differentiate between NEWLINE | |
| token (an official newline) and NL token (a newline that the grammar | |
| ignores). | |
| - Several bugfixes to the urllib module. It is now truly thread-safe, | |
| and several bugs and a portability problem have been fixed. New | |
| features, all due to Sjoerd Mullender: When creating a temporary file, | |
| it gives it an appropriate suffix. Support the "data:" URL scheme. | |
| The open() method uses the tempcache. | |
| - New version of the xmllib module (this time with a test suite!) by | |
| Sjoerd Mullender. | |
| - Added debugging code to the telnetlib module, to be able to trace | |
| the actual traffic. | |
| - In the rfc822 module, added support for deleting a header (still no | |
| support for adding headers, though). Also fixed a bug where an | |
| illegal address would cause a crash in getrouteaddr(), fixed a | |
| sign reversal in mktime_tz(), and use the local timezone by default | |
| (the latter two due to Bill van Melle). | |
| - The normpath() function in the dospath and ntpath modules no longer | |
| does case normalization -- for that, use the separate function | |
| normcase() (which always existed); normcase() has been sped up and | |
| fixed (it was the cause of a crash in Mark Hammond's installer in | |
| certain locales). | |
| - New command supported by the ftplib module: rmd(); also fixed some | |
| minor bugs. | |
| - The profile module now uses a different timer function by default -- | |
| time.clock() is generally better than os.times(). This makes it work | |
| better on Windows NT, too. | |
| - The tempfile module now recovers when os.getcwd() raises an | |
| exception. | |
| - Fixed some bugs in the random module; gauss() was subtly wrong, and | |
| vonmisesvariate() should return a full circle. Courtesy Mike Miller, | |
| Lambert Meertens (gauss()), and Magnus Kessler (vonmisesvariate()). | |
| - Better default seed in the whrandom module, courtesy Andrew Kuchling. | |
| - Fix slow close() in shelve module. | |
| - The Unix mailbox class in the mailbox module is now more robust when | |
| a line begins with the string "From " but is definitely not the start | |
| of a new message. The pattern used can be changed by overriding a | |
| method or class variable. | |
| - Added a rmtree() function to the copy module. | |
| - Fixed several typos in the pickle module. Also fixed problems when | |
| unpickling in restricted execution environments. | |
| - Added docstrings and fixed a typo in the py_compile and compileall | |
| modules. At Mark Hammond's repeated request, py_compile now append a | |
| newline to the source if it needs one. Both modules support an extra | |
| parameter to specify the purported source filename (to be used in | |
| error messages). | |
| - Some performance tweaks by Jeremy Hylton to the gzip module. | |
| - Fixed a bug in the merge order of dictionaries in the ConfigParser | |
| module. Courtesy Barry Warsaw. | |
| - In the multifile module, support the optional second parameter to | |
| seek() when possible. | |
| - Several fixes to the gopherlib module by Lars Marius Garshol. Also, | |
| urlparse now correctly handles Gopher URLs with query strings. | |
| - Fixed a tiny bug in format_exception() in the traceback module. | |
| Also rewrite tb_lineno() to be compatible with JPython (and not | |
| disturb the current exception!); by Jim Hugunin. | |
| - The httplib module is more robust when servers send a short response | |
| -- courtesy Tim O'Malley. | |
| Tkinter and friends | |
| ------------------- | |
| - Various typos and bugs fixed. | |
| - New module Tkdnd implements a drag-and-drop protocol (within one | |
| application only). | |
| - The event_*() widget methods have been restructured slightly -- they | |
| no longer use the default root. | |
| - The interfaces for the bind*() and unbind() widget methods have been | |
| redesigned; the bind*() methods now return the name of the Tcl command | |
| created for the callback, and this can be passed as an optional | |
| argument to unbind() in order to delete the command (normally, such | |
| commands are automatically unbound when the widget is destroyed, but | |
| for some applications this isn't enough). | |
| - Variable objects now have trace methods to interface to Tcl's | |
| variable tracing facilities. | |
| - Image objects now have an optional keyword argument, 'master', to | |
| specify a widget (tree) to which they belong. The image_names() and | |
| image_types() calls are now also widget methods. | |
| - There's a new global call, Tkinter.NoDefaultRoot(), which disables | |
| all use of the default root by the Tkinter library. This is useful to | |
| debug applications that are in the process of being converted from | |
| relying on the default root to explicit specification of the root | |
| widget. | |
| - The 'exit' command is deleted from the Tcl interpreter, since it | |
| provided a loophole by which one could (accidentally) exit the Python | |
| interpreter without invoking any cleanup code. | |
| - Tcl_Finalize() is now registered as a Python low-level exit handle, | |
| so Tcl will be finalized when Python exits. | |
| The Python/C API | |
| ---------------- | |
| - New function PyThreadState_GetDict() returns a per-thread dictionary | |
| intended for storing thread-local global variables. | |
| - New functions Py_ReprEnter() and Py_ReprLeave() use the per-thread | |
| dictionary to allow recursive container types to detect recursion in | |
| their repr(), str() and print implementations. | |
| - New function PyObject_Not(x) calculates (not x) according to Python's | |
| standard rules (basically, it negates the outcome PyObject_IsTrue(x). | |
| - New function _PyModule_Clear(), which clears a module's dictionary | |
| carefully without removing the __builtins__ entry. This is implied | |
| when a module object is deallocated (this used to clear the dictionary | |
| completely). | |
| - New function PyImport_ExecCodeModuleEx(), which extends | |
| PyImport_ExecCodeModule() by adding an extra parameter to pass it the | |
| true file. | |
| - New functions Py_GetPythonHome() and Py_SetPythonHome(), intended to | |
| allow embedded applications to force a different value for PYTHONHOME. | |
| - New global flag Py_FrozenFlag is set when this is a "frozen" Python | |
| binary; it suppresses warnings about not being able to find the | |
| standard library directories. | |
| - New global flag Py_TabcheckFlag is incremented by the -t option and | |
| causes the tokenizer to issue warnings or errors about inconsistent | |
| mixing of tabs and spaces for indentation. | |
| Miscellaneous minor changes and bug fixes | |
| ----------------------------------------- | |
| - Improved the error message when an attribute of an attribute-less | |
| object is requested -- include the name of the attribute and the type | |
| of the object in the message. | |
| - Sped up int(), long(), float() a bit. | |
| - Fixed a bug in list.sort() that would occasionally dump core. | |
| - Fixed a bug in PyNumber_Power() that caused numeric arrays to fail | |
| when taken to the real power. | |
| - Fixed a number of bugs in the file reading code, at least one of | |
| which could cause a core dump on NT, and one of which would | |
| occasionally cause file.read() to return less than the full contents | |
| of the file. | |
| - Performance hack by Vladimir Marangozov for stack frame creation. | |
| - Make sure setvbuf() isn't used unless HAVE_SETVBUF is defined. | |
| Windows 95/NT | |
| ------------- | |
| - The .lib files are now part of the distribution; they are collected | |
| in the subdirectory "libs" of the installation directory. | |
| - The extension modules (.pyd files) are now collected in a separate | |
| subdirectory of the installation directory named "DLLs". | |
| - The case of a module's filename must now match the case of the | |
| module name as specified in the import statement. This is an | |
| experimental feature -- if it turns out to break in too many | |
| situations, it will be removed (or disabled by default) in the future. | |
| It can be disabled on a per-case basis by setting the environment | |
| variable PYTHONCASEOK (to any value). | |
| ====================================================================== | |
| ===================================== | |
| ==> Release 1.5 (January 3, 1998) <== | |
| ===================================== | |
| From 1.5b2 to 1.5 | |
| ================= | |
| - Newly documentated module: BaseHTTPServer.py, thanks to Greg Stein. | |
| - Added doc strings to string.py, stropmodule.c, structmodule.c, | |
| thanks to Charles Waldman. | |
| - Many nits fixed in the manuals, thanks to Fred Drake and many others | |
| (especially Rob Hooft and Andrew Kuchling). The HTML version now uses | |
| HTML markup instead of inline GIF images for tables; only two images | |
| are left (for obscure bits of math). The index of the HTML version has | |
| also been much improved. Finally, it is once again possible to | |
| generate an Emacs info file from the library manual (but I don't | |
| commit to supporting this in future versions). | |
| - New module: telnetlib.py (a simple telnet client library). | |
| - New tool: Tools/versioncheck/, by Jack Jansen. | |
| - Ported zlibmodule.c and bsddbmodule.c to NT; The project file for MS | |
| DevStudio 5.0 now includes new subprojects to build the zlib and bsddb | |
| extension modules. | |
| - Many small changes again to Tkinter.py -- mostly bugfixes and adding | |
| missing routines. Thanks to Greg McFarlane for reporting a bunch of | |
| problems and proofreading my fixes. | |
| - The re module and its documentation are up to date with the latest | |
| version released to the string-sig (Dec. 22). | |
| - Stop test_grp.py from failing when the /etc/group file is empty | |
| (yes, this happens!). | |
| - Fix bug in integer conversion (mystrtoul.c) that caused | |
| 4294967296==0 to be true! | |
| - The VC++ 4.2 project file should be complete again. | |
| - In tempfile.py, use a better template on NT, and add a new optional | |
| argument "suffix" with default "" to specify a specific extension for | |
| the temporary filename (needed sometimes on NT but perhaps also handy | |
| elsewhere). | |
| - Fixed some bugs in the FAQ wizard, and converted it to use re | |
| instead of regex. | |
| - Fixed a mysteriously undetected error in dlmodule.c (it was using a | |
| totally bogus routine name to raise an exception). | |
| - Fixed bug in import.c which wasn't using the new "dos-8x3" name yet. | |
| - Hopefully harmless changes to the build process to support shared | |
| libraries on DG/UX. This adds a target to create | |
| libpython$(VERSION).so; however this target is *only* for DG/UX. | |
| - Fixed a bug in the new format string error checking in getargs.c. | |
| - A simple fix for infinite recursion when printing __builtins__: | |
| reset '_' to None before printing and set it to the printed variable | |
| *after* printing (and only when printing is successful). | |
| - Fixed lib-tk/SimpleDialog.py to keep the dialog visible even if the | |
| parent window is not (Skip Montanaro). | |
| - Fixed the two most annoying problems with ftp URLs in | |
| urllib.urlopen(); an empty file now correctly raises an error, and it | |
| is no longer required to explicitly close the returned "file" object | |
| before opening another ftp URL to the same host and directory. | |
| ====================================================================== | |
| From 1.5b1 to 1.5b2 | |
| =================== | |
| - Fixed a bug in cPickle.c that caused it to crash right away because | |
| the version string had a different format. | |
| - Changes in pickle.py and cPickle.c: when unpickling an instance of a | |
| class that doesn't define the __getinitargs__() method, the __init__() | |
| constructor is no longer called. This makes a much larger group of | |
| classes picklable by default, but may occasionally change semantics. | |
| To force calling __init__() on unpickling, define a __getinitargs__() | |
| method. Other changes too, in particular cPickle now handles classes | |
| defined in packages correctly. The same change applies to copying | |
| instances with copy.py. The cPickle.c changes and some pickle.py | |
| changes are courtesy Jim Fulton. | |
| - Locale support in he "re" (Perl regular expressions) module. Use | |
| the flag re.L (or re.LOCALE) to enable locale-specific matching | |
| rules for \w and \b. The in-line syntax for this flag is (?L). | |
| - The built-in function isinstance(x, y) now also succeeds when y is | |
| a type object and type(x) is y. | |
| - repr() and str() of class and instance objects now reflect the | |
| package/module in which the class is defined. | |
| - Module "ni" has been removed. (If you really need it, it's been | |
| renamed to "ni1". Let me know if this causes any problems for you. | |
| Package authors are encouraged to write __init__.py files that | |
| support both ni and 1.5 package support, so the same version can be | |
| used with Python 1.4 as well as 1.5.) | |
| - The thread module is now automatically included when threads are | |
| configured. (You must remove it from your existing Setup file, | |
| since it is now in its own Setup.thread file.) | |
| - New command line option "-x" to skip the first line of the script; | |
| handy to make executable scripts on non-Unix platforms. | |
| - In importdl.c, add the RTLD_GLOBAL to the dlopen() flags. I | |
| haven't checked how this affects things, but it should make symbols | |
| in one shared library available to the next one. | |
| - The Windows installer now installs in the "Program Files" folder on | |
| the proper volume by default. | |
| - The Windows configuration adds a new main program, "pythonw", and | |
| registers a new extension, ".pyw" that invokes this. This is a | |
| pstandard Python interpreter that does not pop up a console window; | |
| handy for pure Tkinter applications. All output to the original | |
| stdout and stderr is lost; reading from the original stdin yields | |
| EOF. Also, both python.exe and pythonw.exe now have a pretty icon | |
| (a green snake in a box, courtesy Mark Hammond). | |
| - Lots of improvements to emacs-mode.el again. See Barry's web page: | |
| http://www.python.org/ftp/emacs/pmdetails.html. | |
| - Lots of improvements and additions to the library reference manual; | |
| many by Fred Drake. | |
| - Doc strings for the following modules: rfc822.py, posixpath.py, | |
| ntpath.py, httplib.py. Thanks to Mitch Chapman and Charles Waldman. | |
| - Some more regression testing. | |
| - An optional 4th (maxsplit) argument to strop.replace(). | |
| - Fixed handling of maxsplit in string.splitfields(). | |
| - Tweaked os.environ so it can be pickled and copied. | |
| - The portability problems caused by indented preprocessor commands | |
| and C++ style comments should be gone now. | |
| - In random.py, added Pareto and Weibull distributions. | |
| - The crypt module is now disabled in Modules/Setup.in by default; it | |
| is rarely needed and causes errors on some systems where users often | |
| don't know how to deal with those. | |
| - Some improvements to the _tkinter build line suggested by Case Roole. | |
| - A full suite of platform specific files for NetBSD 1.x, submitted by | |
| Anders Andersen. | |
| - New Solaris specific header STROPTS.py. | |
| - Moved a confusing occurrence of *shared* from the comments in | |
| Modules/Setup.in (people would enable this one instead of the real | |
| one, and get disappointing results). | |
| - Changed the default mode for directories to be group-writable when | |
| the installation process creates them. | |
| - Check for pthread support in "-l_r" for FreeBSD/NetBSD, and support | |
| shared libraries for both. | |
| - Support FreeBSD and NetBSD in posixfile.py. | |
| - Support for the "event" command, new in Tk 4.2. By Case Roole. | |
| - Add Tix_SafeInit() support to tkappinit.c. | |
| - Various bugs fixed in "re.py" and "pcre.c". | |
| - Fixed a bug (broken use of the syntax table) in the old "regexpr.c". | |
| - In frozenmain.c, stdin is made unbuffered too when PYTHONUNBUFFERED | |
| is set. | |
| - Provide default blocksize for retrbinary in ftplib.py (Skip | |
| Montanaro). | |
| - In NT, pick the username up from different places in user.py (Jeff | |
| Bauer). | |
| - Patch to urlparse.urljoin() for ".." and "..#1", Marc Lemburg. | |
| - Many small improvements to Jeff Rush' OS/2 support. | |
| - ospath.py is gone; it's been obsolete for so many years now... | |
| - The reference manual is now set up to prepare better HTML (still | |
| using webmaker, alas). | |
| - Add special handling to /Tools/freeze for Python modules that are | |
| imported implicitly by the Python runtime: 'site' and 'exceptions'. | |
| - Tools/faqwiz 0.8.3 -- add an option to suppress URL processing | |
| inside <PRE>, by "Scott". | |
| - Added ConfigParser.py, a generic parser for sectioned configuration | |
| files. | |
| - In _localemodule.c, LC_MESSAGES is not always defined; put it | |
| between #ifdefs. | |
| - Typo in resource.c: RUSAGE_CHILDERN -> RUSAGE_CHILDREN. | |
| - Demo/scripts/newslist.py: Fix the way the version number is gotten | |
| out of the RCS revision. | |
| - PyArg_Parse[Tuple] now explicitly check for bad characters at the | |
| end of the format string. | |
| - Revamped PC/example_nt to support VC++ 5.x. | |
| - <listobject>.sort() now uses a modified quicksort by Raymund Galvin, | |
| after studying the GNU libg++ quicksort. This should be much faster | |
| if there are lots of duplicates, and otherwise at least as good. | |
| - Added "uue" as an alias for "uuencode" to mimetools.py. (Hm, the | |
| uudecode bug where it complaints about trailing garbage is still there | |
| :-( ). | |
| - pickle.py requires integers in text mode to be in decimal notation | |
| (it used to accept octal and hex, even though it would only generate | |
| decimal numbers). | |
| - In string.atof(), don't fail when the "re" module is unavailable. | |
| Plug the ensuing security leak by supplying an empty __builtins__ | |
| directory to eval(). | |
| - A bunch of small fixes and improvements to Tkinter.py. | |
| - Fixed a buffer overrun in PC/getpathp.c. | |
| ====================================================================== | |
| From 1.5a4 to 1.5b1 | |
| =================== | |
| - The Windows NT/95 installer now includes full HTML of all manuals. | |
| It also has a checkbox that lets you decide whether to install the | |
| interpreter and library. The WISE installer script for the installer | |
| is included in the source tree as PC/python15.wse, and so are the | |
| icons used for Python files. The config.c file for the Windows build | |
| is now complete with the pcre module. | |
| - sys.ps1 and sys.ps2 can now arbitrary objects; their str() is | |
| evaluated for the prompt. | |
| - The reference manual is brought up to date (more or less -- it still | |
| needs work, e.g. in the area of package import). | |
| - The icons used by latex2html are now included in the Doc | |
| subdirectory (mostly so that tarring up the HTML files can be fully | |
| automated). A simple index.html is also added to Doc (it only works | |
| after you have successfully run latex2html). | |
| - For all you would-be proselytizers out there: a new version of | |
| Misc/BLURB describes Python more concisely, and Misc/comparisons | |
| compares Python to several other languages. Misc/BLURB.WINDOWS | |
| contains a blurb specifically aimed at Windows programmers (by Mark | |
| Hammond). | |
| - A new version of the Python mode for Emacs is included as | |
| Misc/python-mode.el. There are too many new features to list here. | |
| See http://www.python.org/ftp/emacs/pmdetails.html for more info. | |
| - New module fileinput makes iterating over the lines of a list of | |
| files easier. (This still needs some more thinking to make it more | |
| extensible.) | |
| - There's full OS/2 support, courtesy Jeff Rush. To build the OS/2 | |
| version, see PC/readme.txt and PC/os2vacpp. This is for IBM's Visual | |
| Age C++ compiler. I expect that Jeff will also provide a binary | |
| release for this platform. | |
| - On Linux, the configure script now uses '-Xlinker -export-dynamic' | |
| instead of '-rdynamic' to link the main program so that it exports its | |
| symbols to shared libraries it loads dynamically. I hope this doesn't | |
| break on older Linux versions; it is needed for mklinux and appears to | |
| work on Linux 2.0.30. | |
| - Some Tkinter resstructuring: the geometry methods that apply to a | |
| master are now properly usable on toplevel master widgets. There's a | |
| new (internal) widget class, BaseWidget. New, longer "official" names | |
| for the geometry manager methods have been added, | |
| e.g. "grid_columnconfigure()" instead of "columnconfigure()". The old | |
| shorter names still work, and where there's ambiguity, pack wins over | |
| place wins over grid. Also, the bind_class method now returns its | |
| value. | |
| - New, RFC-822 conformant parsing of email addresses and address lists | |
| in the rfc822 module, courtesy Ben Escoto. | |
| - New, revamped tkappinit.c with support for popular packages (PIL, | |
| TIX, BLT, TOGL). For the last three, you need to execute the Tcl | |
| command "load {} Tix" (or Blt, or Togl) to gain access to them. | |
| The Modules/Setup line for the _tkinter module has been rewritten | |
| using the cool line-breaking feature of most Bourne shells. | |
| - New socket method connect_ex() returns the error code from connect() | |
| instead of raising an exception on errors; this makes the logic | |
| required for asynchronous connects simpler and more efficient. | |
| - New "locale" module with (still experimental) interface to the | |
| standard C library locale interface, courtesy Martin von Löwis. This | |
| does not repeat my mistake in 1.5a4 of always calling | |
| setlocale(LC_ALL, ""). In fact, we've pretty much decided that | |
| Python's standard numerical formatting operations should always use | |
| the conventions for the C locale; the locale module contains utility | |
| functions to format numbers according to the user specified locale. | |
| (All this is accomplished by an explicit call to setlocale(LC_NUMERIC, | |
| "C") after locale-changing calls.) See the library manual. (Alas, the | |
| promised changes to the "re" module for locale support have not been | |
| materialized yet. If you care, volunteer!) | |
| - Memory leak plugged in Py_BuildValue when building a dictionary. | |
| - Shared modules can now live inside packages (hierarchical module | |
| namespaces). No changes to the shared module itself are needed. | |
| - Improved policy for __builtins__: this is a module in __main__ and a | |
| dictionary everywhere else. | |
| - Python no longer catches SIGHUP and SIGTERM by default. This was | |
| impossible to get right in the light of thread contexts. If you want | |
| your program to clean up when a signal happens, use the signal module | |
| to set up your own signal handler. | |
| - New Python/C API PyNumber_CoerceEx() does not return an exception | |
| when no coercion is possible. This is used to fix a problem where | |
| comparing incompatible numbers for equality would raise an exception | |
| rather than return false as in Python 1.4 -- it once again will return | |
| false. | |
| - The errno module is changed again -- the table of error messages | |
| (errorstr) is removed. Instead, you can use os.strerror(). This | |
| removes redundance and a potential locale dependency. | |
| - New module xmllib, to parse XML files. By Sjoerd Mullender. | |
| - New C API PyOS_AfterFork() is called after fork() in posixmodule.c. | |
| It resets the signal module's notion of what the current process ID | |
| and thread are, so that signal handlers will work after (and across) | |
| calls to os.fork(). | |
| - Fixed most occurrences of fatal errors due to missing thread state. | |
| - For vgrind (a flexible source pretty printer) fans, there's a simple | |
| Python definition in Misc/vgrindefs, courtesy Neale Pickett. | |
| - Fixed memory leak in exec statement. | |
| - The test.pystone module has a new function, pystones(loops=LOOPS), | |
| which returns a (benchtime, stones) tuple. The main() function now | |
| calls this and prints the report. | |
| - Package directories now *require* the presence of an __init__.py (or | |
| __init__.pyc) file before they are considered as packages. This is | |
| done to prevent accidental subdirectories with common names from | |
| overriding modules with the same name. | |
| - Fixed some strange exceptions in __del__ methods in library modules | |
| (e.g. urllib). This happens because the built-in names are already | |
| deleted by the time __del__ is called. The solution (a hack, but it | |
| works) is to set some instance variables to 0 instead of None. | |
| - The table of built-in module initializers is replaced by a pointer | |
| variable. This makes it possible to switch to a different table at | |
| run time, e.g. when a collection of modules is loaded from a shared | |
| library. (No example code of how to do this is given, but it is | |
| possible.) The table is still there of course, its name prefixed with | |
| an underscore and used to initialize the pointer. | |
| - The warning about a thread still having a frame now only happens in | |
| verbose mode. | |
| - Change the signal finalization so that it also resets the signal | |
| handlers. After this has been called, our signal handlers are no | |
| longer active! | |
| - New version of tokenize.py (by Ka-Ping Yee) recognizes raw string | |
| literals. There's now also a test fort this module. | |
| - The copy module now also uses __dict__.update(state) instead of | |
| going through individual attribute assignments, for class instances | |
| without a __setstate__ method. | |
| - New module reconvert translates old-style (regex module) regular | |
| expressions to new-style (re module, Perl-style) regular expressions. | |
| - Most modules that used to use the regex module now use the re | |
| module. The grep module has a new pgrep() function which uses | |
| Perl-style regular expressions. | |
| - The (very old, backwards compatibility) regexp.py module has been | |
| deleted. | |
| - Restricted execution (rexec): added the pcre module (support for the | |
| re module) to the list of trusted extension modules. | |
| - New version of Jim Fulton's CObject object type, adds | |
| PyCObject_FromVoidPtrAndDesc() and PyCObject_GetDesc() APIs. | |
| - Some patches to Lee Busby's fpectl mods that accidentally didn't | |
| make it into 1.5a4. | |
| - In the string module, add an optional 4th argument to count(), | |
| matching find() etc. | |
| - Patch for the nntplib module by Charles Waldman to add optional user | |
| and password arguments to NNTP.__init__(), for nntp servers that need | |
| them. | |
| - The str() function for class objects now returns | |
| "modulename.classname" instead of returning the same as repr(). | |
| - The parsing of \xXX escapes no longer relies on sscanf(). | |
| - The "sharedmodules" subdirectory of the installation is renamed to | |
| "lib-dynload". (You may have to edit your Modules/Setup file to fix | |
| this in an existing installation!) | |
| - Fixed Don Beaudry's mess-up with the OPT test in the configure | |
| script. Certain SGI platforms will still issue a warning for each | |
| compile; there's not much I can do about this since the compiler's | |
| exit status doesn't indicate that I was using an obsolete option. | |
| - Fixed Barry's mess-up with {}.get(), and added test cases for it. | |
| - Shared libraries didn't quite work under AIX because of the change | |
| in status of the GNU readline interface. Fix due to by Vladimir | |
| Marangozov. | |
| ====================================================================== | |
| From 1.5a3 to 1.5a4 | |
| =================== | |
| - faqwiz.py: version 0.8; Recognize https:// as URL; <html>...</html> | |
| feature; better install instructions; removed faqmain.py (which was an | |
| older version). | |
| - nntplib.py: Fixed some bugs reported by Lars Wirzenius (to Debian) | |
| about the treatment of lines starting with '.'. Added a minimal test | |
| function. | |
| - struct module: ignore most whitespace in format strings. | |
| - urllib.py: close the socket and temp file in URLopener.retrieve() so | |
| that multiple retrievals using the same connection work. | |
| - All standard exceptions are now classes by default; use -X to make | |
| them strings (for backward compatibility only). | |
| - There's a new standard exception hierarchy, defined in the standard | |
| library module exceptions.py (which you never need to import | |
| explicitly). See | |
| http://grail.cnri.reston.va.us/python/essays/stdexceptions.html for | |
| more info. | |
| - Three new C API functions: | |
| - int PyErr_GivenExceptionMatches(obj1, obj2) | |
| Returns 1 if obj1 and obj2 are the same object, or if obj1 is an | |
| instance of type obj2, or of a class derived from obj2 | |
| - int PyErr_ExceptionMatches(obj) | |
| Higher level wrapper around PyErr_GivenExceptionMatches() which uses | |
| PyErr_Occurred() as obj1. This will be the more commonly called | |
| function. | |
| - void PyErr_NormalizeException(typeptr, valptr, tbptr) | |
| Normalizes exceptions, and places the normalized values in the | |
| arguments. If type is not a class, this does nothing. If type is a | |
| class, then it makes sure that value is an instance of the class by: | |
| 1. if instance is of the type, or a class derived from type, it does | |
| nothing. | |
| 2. otherwise it instantiates the class, using the value as an | |
| argument. If value is None, it uses an empty arg tuple, and if | |
| the value is a tuple, it uses just that. | |
| - Another new C API function: PyErr_NewException() creates a new | |
| exception class derived from Exception; when -X is given, it creates a | |
| new string exception. | |
| - core interpreter: remove the distinction between tuple and list | |
| unpacking; allow an arbitrary sequence on the right hand side of any | |
| unpack instruction. (UNPACK_LIST and UNPACK_TUPLE now do the same | |
| thing, which should really be called UNPACK_SEQUENCE.) | |
| - classes: Allow assignments to an instance's __dict__ or __class__, | |
| so you can change ivars (including shared ivars -- shock horror) and | |
| change classes dynamically. Also make the check on read-only | |
| attributes of classes less draconic -- only the specials names | |
| __dict__, __bases__, __name__ and __{get,set,del}attr__ can't be | |
| assigned. | |
| - Two new built-in functions: issubclass() and isinstance(). Both | |
| take classes as their second arguments. The former takes a class as | |
| the first argument and returns true iff first is second, or is a | |
| subclass of second. The latter takes any object as the first argument | |
| and returns true iff first is an instance of the second, or any | |
| subclass of second. | |
| - configure: Added configuration tests for presence of alarm(), | |
| pause(), and getpwent(). | |
| - Doc/Makefile: changed latex2html targets. | |
| - classes: Reverse the search order for the Don Beaudry hook so that | |
| the first class with an applicable hook wins. Makes more sense. | |
| - Changed the checks made in Py_Initialize() and Py_Finalize(). It is | |
| now legal to call these more than once. The first call to | |
| Py_Initialize() initializes, the first call to Py_Finalize() | |
| finalizes. There's also a new API, Py_IsInitialized() which checks | |
| whether we are already initialized (in case you want to leave things | |
| as they were). | |
| - Completely disable the declarations for malloc(), realloc() and | |
| free(). Any 90's C compiler has these in header files, and the tests | |
| to decide whether to suppress the declarations kept failing on some | |
| platforms. | |
| - *Before* (instead of after) signalmodule.o is added, remove both | |
| intrcheck.o and sigcheck.o. This should get rid of warnings in ar or | |
| ld on various systems. | |
| - Added reop to PC/config.c | |
| - configure: Decided to use -Aa -D_HPUX_SOURCE on HP-UX platforms. | |
| Removed outdated HP-UX comments from README. Added Cray T3E comments. | |
| - Various renames of statically defined functions that had name | |
| conflicts on some systems, e.g. strndup (GNU libc), join (Cray), | |
| roundup (sys/types.h). | |
| - urllib.py: Interpret three slashes in file: URL as local file (for | |
| Netscape on Windows/Mac). | |
| - copy.py: Make sure the objects returned by __getinitargs__() are | |
| kept alive (in the memo) to avoid a certain kind of nasty crash. (Not | |
| easily reproducible because it requires a later call to | |
| __getinitargs__() to return a tuple that happens to be allocated at | |
| the same address.) | |
| - Added definition of AR to toplevel Makefile. Renamed @buildno temp | |
| file to buildno1. | |
| - Moved Include/assert.h to Parser/assert.h, which seems to be the | |
| only place where it's needed. | |
| - Tweaked the dictionary lookup code again for some more speed | |
| (Vladimir Marangozov). | |
| - NT build: Changed the way python15.lib is included in the other | |
| projects. Per Mark Hammond's suggestion, add it to the extra libs in | |
| Settings instead of to the project's source files. | |
| - regrtest.py: Change default verbosity so that there are only three | |
| levels left: -q, default and -v. In default mode, the name of each | |
| test is now printed. -v is the same as the old -vv. -q is more quiet | |
| than the old default mode. | |
| - Removed the old FAQ from the distribution. You now have to get it | |
| from the web! | |
| - Removed the PC/make_nt.in file from the distribution; it is no | |
| longer needed. | |
| - Changed the build sequence so that shared modules are built last. | |
| This fixes things for AIX and doesn't hurt elsewhere. | |
| - Improved test for GNU MP v1 in mpzmodule.c | |
| - fileobject.c: ftell() on Linux discards all buffered data; changed | |
| read() code to use lseek() instead to get the same effect | |
| - configure.in, configure, importdl.c: NeXT sharedlib fixes | |
| - tupleobject.c: PyTuple_SetItem asserts refcnt==1 | |
| - resource.c: Different strategy regarding whether to declare | |
| getrusage() and getpagesize() -- #ifdef doesn't work, Linux has | |
| conflicting decls in its headers. Choice: only declare the return | |
| type, not the argument prototype, and not on Linux. | |
| - importdl.c, configure*: set sharedlib extensions properly for NeXT | |
| - configure*, Makefile.in, Modules/Makefile.pre.in: AIX shared libraries | |
| fixed; moved addition of PURIFY to LINKCC to configure | |
| - reopmodule.c, regexmodule.c, regexpr.c, zlibmodule.c: needed casts | |
| added to shup up various compilers. | |
| - _tkinter.c: removed buggy mac #ifndef | |
| - Doc: various Mac documentation changes, added docs for 'ic' module | |
| - PC/make_nt.in: deleted | |
| - test_time.py, test_strftime.py: tweaks to catch %Z (which may return | |
| "") | |
| - test_rotor.py: print b -> print `b` | |
| - Tkinter.py: (tagOrId) -> (tagOrId,) | |
| - Tkinter.py: the Tk class now also has a configure() method and | |
| friends (they have been moved to the Misc class to accomplish this). | |
| - dict.get(key[, default]) returns dict[key] if it exists, or default | |
| if it doesn't. The default defaults to None. This is quicker for | |
| some applications than using either has_key() or try:...except | |
| KeyError:.... | |
| - Tools/webchecker/: some small changes to webchecker.py; added | |
| websucker.py (a simple web site mirroring script). | |
| - Dictionary objects now have a get() method (also in UserDict.py). | |
| dict.get(key, default) returns dict[key] if it exists and default | |
| otherwise; default defaults to None. | |
| - Tools/scripts/logmerge.py: print the author, too. | |
| - Changes to import: support for "import a.b.c" is now built in. See | |
| http://grail.cnri.reston.va.us/python/essays/packages.html | |
| for more info. Most important deviations from "ni.py": __init__.py is | |
| executed in the package's namespace instead of as a submodule; and | |
| there's no support for "__" or "__domain__". Note that "ni.py" is not | |
| changed to match this -- it is simply declared obsolete (while at the | |
| same time, it is documented...:-( ). | |
| Unfortunately, "ihooks.py" has not been upgraded (but see "knee.py" | |
| for an example implementation of hierarchical module import written in | |
| Python). | |
| - More changes to import: the site.py module is now imported by | |
| default when Python is initialized; use -S to disable it. The site.py | |
| module extends the path with several more directories: site-packages | |
| inside the lib/python1.5/ directory, site-python in the lib/ | |
| directory, and pathnames mentioned in *.pth files found in either of | |
| those directories. See | |
| http://grail.cnri.reston.va.us/python/essays/packages.html | |
| for more info. | |
| - Changes to standard library subdirectory names: those subdirectories | |
| that are not packages have been renamed with a hyphen in their name, | |
| e.g. lib-tk, lib-stdwin, plat-win, plat-linux2, plat-sunos5, dos-8x3. | |
| The test suite is now a package -- to run a test, you must now use | |
| "import test.test_foo". | |
| - A completely new re.py module is provided (thanks to Andrew | |
| Kuchling, Tim Peters and Jeffrey Ollie) which uses Philip Hazel's | |
| "pcre" re compiler and engine. For a while, the "old" re.py (which | |
| was new in 1.5a3!) will be kept around as re1.py. The "old" regex | |
| module and underlying parser and engine are still present -- while | |
| regex is now officially obsolete, it will probably take several major | |
| release cycles before it can be removed. | |
| - The posix module now has a strerror() function which translates an | |
| error code to a string. | |
| - The emacs.py module (which was long obsolete) has been removed. | |
| - The universal makefile Misc/Makefile.pre.in now features an | |
| "install" target. By default, installed shared libraries go into | |
| $exec_prefix/lib/python$VERSION/site-packages/. | |
| - The install-sh script is installed with the other configuration | |
| specific files (in the config/ subdirectory). | |
| - It turns out whatsound.py and sndhdr.py were identical modules. | |
| Since there's also an imghdr.py file, I propose to make sndhdr.py the | |
| official one. For compatibility, whatsound.py imports * from | |
| sndhdr.py. | |
| - Class objects have a new attribute, __module__, giving the name of | |
| the module in which they were declared. This is useful for pickle and | |
| for printing the full name of a class exception. | |
| - Many extension modules no longer issue a fatal error when their | |
| initialization fails; the importing code now checks whether an error | |
| occurred during module initialization, and correctly propagates the | |
| exception to the import statement. | |
| - Most extension modules now raise class-based exceptions (except when | |
| -X is used). | |
| - Subtle changes to PyEval_{Save,Restore}Thread(): always swap the | |
| thread state -- just don't manipulate the lock if it isn't there. | |
| - Fixed a bug in Python/getopt.c that made it do the wrong thing when | |
| an option was a single '-'. Thanks to Andrew Kuchling. | |
| - New module mimetypes.py will guess a MIME type from a filename's | |
| extension. | |
| - Windows: the DLL version is now settable via a resource rather than | |
| being hardcoded. This can be used for "branding" a binary Python | |
| distribution. | |
| - urllib.py is now threadsafe -- it now uses re instead of regex, and | |
| sys.exc_info() instead of sys.exc_{type,value}. | |
| - Many other library modules that used to use | |
| sys.exc_{type,value,traceback} are now more thread-safe by virtue of | |
| using sys.exc_info(). | |
| - The functions in popen2 have an optional buffer size parameter. | |
| Also, the command argument can now be either a string (passed to the | |
| shell) or a list of arguments (passed directly to execv). | |
| - Alas, the thread support for _tkinter released with 1.5a3 didn't | |
| work. It's been rewritten. The bad news is that it now requires a | |
| modified version of a file in the standard Tcl distribution, which you | |
| must compile with a -I option pointing to the standard Tcl source | |
| tree. For this reason, the thread support is disabled by default. | |
| - The errno extension module adds two tables: errorcode maps errno | |
| numbers to errno names (e.g. EINTR), and errorstr maps them to | |
| message strings. (The latter is redundant because the new call | |
| posix.strerror() now does the same, but alla...) (Marc-Andre Lemburg) | |
| - The readline extension module now provides some interfaces to | |
| internal readline routines that make it possible to write a completer | |
| in Python. An example completer, rlcompleter.py, is provided. | |
| When completing a simple identifier, it completes keywords, | |
| built-ins and globals in __main__; when completing | |
| NAME.NAME..., it evaluates (!) the expression up to the last | |
| dot and completes its attributes. | |
| It's very cool to do "import string" type "string.", hit the | |
| completion key (twice), and see the list of names defined by | |
| the string module! | |
| Tip: to use the tab key as the completion key, call | |
| readline.parse_and_bind("tab: complete") | |
| - The traceback.py module has a new function tb_lineno() by Marc-Andre | |
| Lemburg which extracts the line number from the linenumber table in | |
| the code object. Apparently the traceback object doesn't contain the | |
| right linenumber when -O is used. Rather than guessing whether -O is | |
| on or off, the module itself uses tb_lineno() unconditionally. | |
| - Fixed Demo/tkinter/matt/canvas-moving-or-creating.py: change bind() | |
| to tag_bind() so it works again. | |
| - The pystone script is now a standard library module. Example use: | |
| "import test.pystone; test.pystone.main()". | |
| - The import of the readline module in interactive mode is now also | |
| attempted when -i is specified. (Yes, I know, giving in to Marc-Andre | |
| Lemburg, who asked for this. :-) | |
| - rfc822.py: Entirely rewritten parseaddr() function by Sjoerd | |
| Mullender, to be closer to the standard. This fixes the getaddr() | |
| method. Unfortunately, getaddrlist() is as broken as ever, since it | |
| splits on commas without regard for RFC 822 quoting conventions. | |
| - pprint.py: correctly emit trailing "," in singleton tuples. | |
| - _tkinter.c: export names for its type objects, TkappType and | |
| TkttType. | |
| - pickle.py: use __module__ when defined; fix a particularly hard to | |
| reproduce bug that confuses the memo when temporary objects are | |
| returned by custom pickling interfaces; and a semantic change: when | |
| unpickling the instance variables of an instance, use | |
| inst.__dict__.update(value) instead of a for loop with setattr() over | |
| the value.keys(). This is more consistent (the pickling doesn't use | |
| getattr() either but pickles inst.__dict__) and avoids problems with | |
| instances that have a __setattr__ hook. But it *is* a semantic change | |
| (because the setattr hook is no longer used). So beware! | |
| - config.h is now installed (at last) in | |
| $exec_prefix/include/python1.5/. For most sites, this means that it | |
| is actually in $prefix/include/python1.5/, with all the other Python | |
| include files, since $prefix and $exec_prefix are the same by | |
| default. | |
| - The imp module now supports parts of the functionality to implement | |
| import of hierarchical module names. It now supports find_module() | |
| and load_module() for all types of modules. Docstrings have been | |
| added for those functions in the built-in imp module that are still | |
| relevant (some old interfaces are obsolete). For a sample | |
| implementation of hierarchical module import in Python, see the new | |
| library module knee.py. | |
| - The % operator on string objects now allows arbitrary nested parens | |
| in a %(...)X style format. (Brad Howes) | |
| - Reverse the order in which Setup and Setup.local are passed to the | |
| makesetup script. This allows variable definitions in Setup.local to | |
| override definitions in Setup. (But you'll still have to edit Setup | |
| if you want to disable modules that are enabled by default, or if such | |
| modules need non-standard options.) | |
| - Added PyImport_ImportModuleEx(name, globals, locals, fromlist); this | |
| is like PyImport_ImporModule(name) but receives the globals and locals | |
| dict and the fromlist arguments as well. (The name is a char*; the | |
| others are PyObject*s). | |
| - The 'p' format in the struct extension module alloded to above is | |
| new in 1.5a4. | |
| - The types.py module now uses try-except in a few places to make it | |
| more likely that it can be imported in restricted mode. Some type | |
| names are undefined in that case, e.g. CodeType (inaccessible), | |
| FileType (not always accessible), and TracebackType and FrameType | |
| (inaccessible). | |
| - In urllib.py: added separate administration of temporary files | |
| created y URLopener.retrieve() so cleanup() can properly remove them. | |
| The old code removed everything in tempcache which was a bad idea if | |
| the user had passed a non-temp file into it. Also, in basejoin(), | |
| interpret relative paths starting in "../". This is necessary if the | |
| server uses symbolic links. | |
| - The Windows build procedure and project files are now based on | |
| Microsoft Visual C++ 5.x. The build now takes place in the PCbuild | |
| directory. It is much more robust, and properly builds separate Debug | |
| and Release versions. (The installer will be added shortly.) | |
| - Added casts and changed some return types in regexpr.c to avoid | |
| compiler warnings or errors on some platforms. | |
| - The AIX build tools for shared libraries now supports VPATH. (Donn | |
| Cave) | |
| - By default, disable the "portable" multimedia modules audioop, | |
| imageop, and rgbimg, since they don't work on 64-bit platforms. | |
| - Fixed a nasty bug in cStringIO.c when code was actually using the | |
| close() method (the destructors would try to free certain fields a | |
| second time). | |
| - For those who think they need it, there's a "user.py" module. This | |
| is *not* imported by default, but can be imported to run user-specific | |
| setup commands, ~/.pythonrc.py. | |
| - Various speedups suggested by Fredrik Lundh, Marc-Andre Lemburg, | |
| Vladimir Marangozov, and others. | |
| - Added os.altsep; this is '/' on DOS/Windows, and None on systems | |
| with a sane filename syntax. | |
| - os.py: Write out the dynamic OS choice, to avoid exec statements. | |
| Adding support for a new OS is now a bit more work, but I bet that | |
| 'dos' or 'nt' will cover most situations... | |
| - The obsolete exception AccessError is now really gone. | |
| - Tools/faqwiz/: New installation instructions show how to maintain | |
| multiple FAQs. Removed bootstrap script from end of faqwiz.py module. | |
| Added instructions to bootstrap script, too. Version bumped to 0.8.1. | |
| Added <html>...</html> feature suggested by Skip Montanaro. Added | |
| leading text for Roulette, default to 'Hit Reload ...'. Fix typo in | |
| default SRCDIR. | |
| - Documentation for the relatively new modules "keyword" and "symbol" | |
| has been added (to the end of the section on the parser extension | |
| module). | |
| - In module bisect.py, but functions have two optional argument 'lo' | |
| and 'hi' which allow you to specify a subsequence of the array to | |
| operate on. | |
| - In ftplib.py, changed most methods to return their status (even when | |
| it is always "200 OK") rather than swallowing it. | |
| - main() now calls setlocale(LC_ALL, ""), if setlocale() and | |
| <locale.h> are defined. | |
| - Changes to configure.in, the configure script, and both | |
| Makefile.pre.in files, to support SGI's SGI_ABI platform selection | |
| environment variable. | |
| ====================================================================== | |
| From 1.4 to 1.5a3 | |
| ================= | |
| Security | |
| -------- | |
| - If you are using the setuid script C wrapper (Misc/setuid-prog.c), | |
| please use the new version. The old version has a huge security leak. | |
| Miscellaneous | |
| ------------- | |
| - Because of various (small) incompatible changes in the Python | |
| bytecode interpreter, the magic number for .pyc files has changed | |
| again. | |
| - The default module search path is now much saner. Both on Unix and | |
| Windows, it is essentially derived from the path to the executable | |
| (which can be overridden by setting the environment variable | |
| $PYTHONHOME). The value of $PYTHONPATH on Windows is now inserted in | |
| front of the default path, like in Unix (instead of overriding the | |
| default path). On Windows, the directory containing the executable is | |
| added to the end of the path. | |
| - A new version of python-mode.el for Emacs has been included. Also, | |
| a new file ccpy-style.el has been added to configure Emacs cc-mode for | |
| the preferred style in Python C sources. | |
| - On Unix, when using sys.argv[0] to insert the script directory in | |
| front of sys.path, expand a symbolic link. You can now install a | |
| program in a private directory and have a symbolic link to it in a | |
| public bin directory, and it will put the private directory in the | |
| module search path. Note that the symlink is expanded in sys.path[0] | |
| but not in sys.argv[0], so you can still tell the name by which you | |
| were invoked. | |
| - It is now recommended to use ``#!/usr/bin/env python'' instead of | |
| ``#!/usr/local/bin/python'' at the start of executable scripts, except | |
| for CGI scripts. It has been determined that the use of /usr/bin/env | |
| is more portable than that of /usr/local/bin/python -- scripts almost | |
| never have to be edited when the Python interpreter lives in a | |
| non-standard place. Note that this doesn't work for CGI scripts since | |
| the python executable often doesn't live in the HTTP server's default | |
| search path. | |
| - The silly -s command line option and the corresponding | |
| PYTHONSUPPRESS environment variable (and the Py_SuppressPrint global | |
| flag in the Python/C API) are gone. | |
| - Most problems on 64-bit platforms should now be fixed. Andrew | |
| Kuchling helped. Some uncommon extension modules are still not | |
| clean (image and audio ops?). | |
| - Fixed a bug where multiple anonymous tuple arguments would be mixed up | |
| when using the debugger or profiler (reported by Just van Rossum). | |
| The simplest example is ``def f((a,b),(c,d)): print a,b,c,d''; this | |
| would print the wrong value when run under the debugger or profiler. | |
| - The hacks that the dictionary implementation used to speed up | |
| repeated lookups of the same C string were removed; these were a | |
| source of subtle problems and don't seem to serve much of a purpose | |
| any longer. | |
| - All traces of support for the long dead access statement have been | |
| removed from the sources. | |
| - Plugged the two-byte memory leak in the tokenizer when reading an | |
| interactive EOF. | |
| - There's a -O option to the interpreter that removes SET_LINENO | |
| instructions and assert statements (see below); it uses and produces | |
| .pyo files instead of .pyc files. The speedup is only a few percent | |
| in most cases. The line numbers are still available in the .pyo file, | |
| as a separate table (which is also available in .pyc files). However, | |
| the removal of the SET_LINENO instructions means that the debugger | |
| (pdb) can't set breakpoints on lines in -O mode. The traceback module | |
| contains a function to extract a line number from the code object | |
| referenced in a traceback object. In the future it should be possible | |
| to write external bytecode optimizers that create better optimized | |
| .pyo files, and there should be more control over optimization; | |
| consider the -O option a "teaser". Without -O, the assert statement | |
| actually generates code that first checks __debug__; if this variable | |
| is false, the assertion is not checked. __debug__ is a built-in | |
| variable whose value is initialized to track the -O flag (it's true | |
| iff -O is not specified). With -O, no code is generated for assert | |
| statements, nor for code of the form ``if __debug__: <something>''. | |
| Sorry, no further constant folding happens. | |
| Performance | |
| ----------- | |
| - It's much faster (almost twice for pystone.py -- see | |
| Tools/scripts). See the entry on string interning below. | |
| - Some speedup by using separate free lists for method objects (both | |
| the C and the Python variety) and for floating point numbers. | |
| - Big speedup by allocating frame objects with a single malloc() call. | |
| The Python/C API for frames is changed (you shouldn't be using this | |
| anyway). | |
| - Significant speedup by inlining some common opcodes for common operand | |
| types (e.g. i+i, i-i, and list[i]). Fredrik Lundh. | |
| - Small speedup by reordering the method tables of some common | |
| objects (e.g. list.append is now first). | |
| - Big optimization to the read() method of file objects. A read() | |
| without arguments now attempts to use fstat to allocate a buffer of | |
| the right size; for pipes and sockets, it will fall back to doubling | |
| the buffer size. While that the improvement is real on all systems, | |
| it is most dramatic on Windows. | |
| Documentation | |
| ------------- | |
| - Many new pieces of library documentation were contributed, mostly by | |
| Andrew Kuchling. Even cmath is now documented! There's also a | |
| chapter of the library manual, "libundoc.tex", which provides a | |
| listing of all undocumented modules, plus their status (e.g. internal, | |
| obsolete, or in need of documentation). Also contributions by Sue | |
| Williams, Skip Montanaro, and some module authors who succumbed to | |
| pressure to document their own contributed modules :-). Note that | |
| printing the documentation now kills fewer trees -- the margins have | |
| been reduced. | |
| - I have started documenting the Python/C API. Unfortunately this project | |
| hasn't been completed yet. It will be complete before the final release of | |
| Python 1.5, though. At the moment, it's better to read the LaTeX source | |
| than to attempt to run it through LaTeX and print the resulting dvi file. | |
| - The posix module (and hence os.py) now has doc strings! Thanks to Neil | |
| Schemenauer. I received a few other contributions of doc strings. In most | |
| other places, doc strings are still wishful thinking... | |
| Language changes | |
| ---------------- | |
| - Private variables with leading double underscore are now a permanent | |
| feature of the language. (These were experimental in release 1.4. I have | |
| favorable experience using them; I can't label them "experimental" | |
| forever.) | |
| - There's new string literal syntax for "raw strings". Prefixing a string | |
| literal with the letter r (or R) disables all escape processing in the | |
| string; for example, r'\n' is a two-character string consisting of a | |
| backslash followed by the letter n. This combines with all forms of string | |
| quotes; it is actually useful for triple quoted doc strings which might | |
| contain references to \n or \t. An embedded quote prefixed with a | |
| backslash does not terminate the string, but the backslash is still | |
| included in the string; for example, r'\'' is a two-character string | |
| consisting of a backslash and a quote. (Raw strings are also | |
| affectionately known as Robin strings, after their inventor, Robin | |
| Friedrich.) | |
| - There's a simple assert statement, and a new exception | |
| AssertionError. For example, ``assert foo > 0'' is equivalent to ``if | |
| not foo > 0: raise AssertionError''. Sorry, the text of the asserted | |
| condition is not available; it would be too complicated to generate | |
| code for this (since the code is generated from a parse tree). | |
| However, the text is displayed as part of the traceback! | |
| - The raise statement has a new feature: when using "raise SomeClass, | |
| somevalue" where somevalue is not an instance of SomeClass, it | |
| instantiates SomeClass(somevalue). In 1.5a4, if somevalue is an | |
| instance of a *derived* class of SomeClass, the exception class raised | |
| is set to somevalue.__class__, and SomeClass is ignored after that. | |
| - Duplicate keyword arguments are now detected at compile time; | |
| f(a=1,a=2) is now a syntax error. | |
| Changes to built-in features | |
| ---------------------------- | |
| - There's a new exception FloatingPointError (used only by Lee Busby's | |
| patches to catch floating point exceptions, at the moment). | |
| - The obsolete exception ConflictError (presumably used by the long | |
| obsolete access statement) has been deleted. | |
| - There's a new function sys.exc_info() which returns the tuple | |
| (sys.exc_type, sys.exc_value, sys.exc_traceback) in a thread-safe way. | |
| - There's a new variable sys.executable, pointing to the executable file | |
| for the Python interpreter. | |
| - The sort() methods for lists no longer uses the C library qsort(); I | |
| wrote my own quicksort implementation, with lots of help (in the form | |
| of a kind of competition) from Tim Peters. This solves a bug in | |
| dictionary comparisons on some Solaris versions when Python is built | |
| with threads, and makes sorting lists even faster. | |
| - The semantics of comparing two dictionaries have changed, to make | |
| comparison of unequal dictionaries faster. A shorter dictionary is | |
| always considered smaller than a larger dictionary. For dictionaries | |
| of the same size, the smallest differing element determines the | |
| outcome (which yields the same results as before in this case, without | |
| explicit sorting). Thanks to Aaron Watters for suggesting something | |
| like this. | |
| - The semantics of try-except have changed subtly so that calling a | |
| function in an exception handler that itself raises and catches an | |
| exception no longer overwrites the sys.exc_* variables. This also | |
| alleviates the problem that objects referenced in a stack frame that | |
| caught an exception are kept alive until another exception is caught | |
| -- the sys.exc_* variables are restored to their previous value when | |
| returning from a function that caught an exception. | |
| - There's a new "buffer" interface. Certain objects (e.g. strings and | |
| arrays) now support the "buffer" protocol. Buffer objects are acceptable | |
| whenever formerly a string was required for a write operation; mutable | |
| buffer objects can be the target of a read operation using the call | |
| f.readinto(buffer). A cool feature is that regular expression matching now | |
| also work on array objects. Contribution by Jack Jansen. (Needs | |
| documentation.) | |
| - String interning: dictionary lookups are faster when the lookup | |
| string object is the same object as the key in the dictionary, not | |
| just a string with the same value. This is done by having a pool of | |
| "interned" strings. Most names generated by the interpreter are now | |
| automatically interned, and there's a new built-in function intern(s) | |
| that returns the interned version of a string. Interned strings are | |
| not a different object type, and interning is totally optional, but by | |
| interning most keys a speedup of about 15% was obtained for the | |
| pystone benchmark. | |
| - Dictionary objects have several new methods; clear() and copy() have | |
| the obvious semantics, while update(d) merges the contents of another | |
| dictionary d into this one, overriding existing keys. The dictionary | |
| implementation file is now called dictobject.c rather than the | |
| confusing mappingobject.c. | |
| - The intrinsic function dir() is much smarter; it looks in __dict__, | |
| __members__ and __methods__. | |
| - The intrinsic functions int(), long() and float() can now take a | |
| string argument and then do the same thing as string.atoi(), | |
| string.atol(), and string.atof(). No second 'base' argument is | |
| allowed, and complex() does not take a string (nobody cared enough). | |
| - When a module is deleted, its globals are now deleted in two phases. | |
| In the first phase, all variables whose name begins with exactly one | |
| underscore are replaced by None; in the second phase, all variables | |
| are deleted. This makes it possible to have global objects whose | |
| destructors depend on other globals. The deletion order within each | |
| phase is still random. | |
| - It is no longer an error for a function to be called without a | |
| global variable __builtins__ -- an empty directory will be provided | |
| by default. | |
| - Guido's corollary to the "Don Beaudry hook": it is now possible to | |
| do metaprogramming by using an instance as a base class. Not for the | |
| faint of heart; and undocumented as yet, but basically if a base class | |
| is an instance, its class will be instantiated to create the new | |
| class. Jim Fulton will love it -- it also works with instances of his | |
| "extension classes", since it is triggered by the presence of a | |
| __class__ attribute on the purported base class. See | |
| Demo/metaclasses/index.html for an explanation and see that directory | |
| for examples. | |
| - Another change is that the Don Beaudry hook is now invoked when | |
| *any* base class is special. (Up to 1.5a3, the *last* special base | |
| class is used; in 1.5a4, the more rational choice of the *first* | |
| special base class is used.) | |
| - New optional parameter to the readlines() method of file objects. | |
| This indicates the number of bytes to read (the actual number of bytes | |
| read will be somewhat larger due to buffering reading until the end of | |
| the line). Some optimizations have also been made to speed it up (but | |
| not as much as read()). | |
| - Complex numbers no longer have the ".conj" pseudo attribute; use | |
| z.conjugate() instead, or complex(z.real, -z.imag). Complex numbers | |
| now *do* support the __members__ and __methods__ special attributes. | |
| - The complex() function now looks for a __complex__() method on class | |
| instances before giving up. | |
| - Long integers now support arbitrary shift counts, so you can now | |
| write 1L<<1000000, memory permitting. (Python 1.4 reports "outrageous | |
| shift count for this.) | |
| - The hex() and oct() functions have been changed so that for regular | |
| integers, they never emit a minus sign. For example, on a 32-bit | |
| machine, oct(-1) now returns '037777777777' and hex(-1) returns | |
| '0xffffffff'. While this may seem inconsistent, it is much more | |
| useful. (For long integers, a minus sign is used as before, to fit | |
| the result in memory :-) | |
| - The hash() function computes better hashes for several data types, | |
| including strings, floating point numbers, and complex numbers. | |
| New extension modules | |
| --------------------- | |
| - New extension modules cStringIO.c and cPickle.c, written by Jim | |
| Fulton and other folks at Digital Creations. These are much more | |
| efficient than their Python counterparts StringIO.py and pickle.py, | |
| but don't support subclassing. cPickle.c clocks up to 1000 times | |
| faster than pickle.py; cStringIO.c's improvement is less dramatic but | |
| still significant. | |
| - New extension module zlibmodule.c, interfacing to the free zlib | |
| library (gzip compatible compression). There's also a module gzip.py | |
| which provides a higher level interface. Written by Andrew Kuchling | |
| and Jeremy Hylton. | |
| - New module readline; see the "miscellaneous" section above. | |
| - New Unix extension module resource.c, by Jeremy Hylton, provides | |
| access to getrlimit(), getrusage(), setrusage(), getpagesize(), and | |
| related symbolic constants. | |
| - New extension puremodule.c, by Barry Warsaw, which interfaces to the | |
| Purify(TM) C API. See also the file Misc/PURIFY.README. It is also | |
| possible to enable Purify by simply setting the PURIFY Makefile | |
| variable in the Modules/Setup file. | |
| Changes in extension modules | |
| ---------------------------- | |
| - The struct extension module has several new features to control byte | |
| order and word size. It supports reading and writing IEEE floats even | |
| on platforms where this is not the native format. It uses uppercase | |
| format codes for unsigned integers of various sizes (always using | |
| Python long ints for 'I' and 'L'), 's' with a size prefix for strings, | |
| and 'p' for "Pascal strings" (with a leading length byte, included in | |
| the size; blame Hannu Krosing; new in 1.5a4). A prefix '>' forces | |
| big-endian data and '<' forces little-endian data; these also select | |
| standard data sizes and disable automatic alignment (use pad bytes as | |
| needed). | |
| - The array module supports uppercase format codes for unsigned data | |
| formats (like the struct module). | |
| - The fcntl extension module now exports the needed symbolic | |
| constants. (Formerly these were in FCNTL.py which was not available | |
| or correct for all platforms.) | |
| - The extension modules dbm, gdbm and bsddb now check that the | |
| database is still open before making any new calls. | |
| - The dbhash module is no more. Use bsddb instead. (There's a third | |
| party interface for the BSD 2.x code somewhere on the web; support for | |
| bsddb will be deprecated.) | |
| - The gdbm module now supports a sync() method. | |
| - The socket module now has some new functions: getprotobyname(), and | |
| the set {ntoh,hton}{s,l}(). | |
| - Various modules now export their type object: socket.SocketType, | |
| array.ArrayType. | |
| - The socket module's accept() method now returns unknown addresses as | |
| a tuple rather than raising an exception. (This can happen in | |
| promiscuous mode.) Theres' also a new function getprotobyname(). | |
| - The pthread support for the thread module now works on most platforms. | |
| - STDWIN is now officially obsolete. Support for it will eventually | |
| be removed from the distribution. | |
| - The binascii extension module is now hopefully fully debugged. | |
| (XXX Oops -- Fredrik Lundh promised me a uuencode fix that I never | |
| received.) | |
| - audioop.c: added a ratecv() function; better handling of overflow in | |
| add(). | |
| - posixmodule.c: now exports the O_* flags (O_APPEND etc.). On | |
| Windows, also O_TEXT and O_BINARY. The 'error' variable (the | |
| exception is raises) is renamed -- its string value is now "os.error", | |
| so newbies don't believe they have to import posix (or nt) to catch | |
| it when they see os.error reported as posix.error. The execve() | |
| function now accepts any mapping object for the environment. | |
| - A new version of the al (audio library) module for SGI was | |
| contributed by Sjoerd Mullender. | |
| - The regex module has a new function get_syntax() which retrieves the | |
| syntax setting set by set_syntax(). The code was also sanitized, | |
| removing worries about unclean error handling. See also below for its | |
| successor, re.py. | |
| - The "new" module (which creates new objects of various types) once | |
| again has a fully functioning new.function() method. Dangerous as | |
| ever! Also, new.code() has several new arguments. | |
| - A problem has been fixed in the rotor module: on systems with signed | |
| characters, rotor-encoded data was not portable when the key contained | |
| 8-bit characters. Also, setkey() now requires its argument rather | |
| than having broken code to default it. | |
| - The sys.builtin_module_names variable is now a tuple. Another new | |
| variables in sys is sys.executable (the full path to the Python | |
| binary, if known). | |
| - The specs for time.strftime() have undergone some revisions. It | |
| appears that not all format characters are supported in the same way | |
| on all platforms. Rather than reimplement it, we note these | |
| differences in the documentation, and emphasize the shared set of | |
| features. There's also a thorough test set (that occasionally finds | |
| problems in the C library implementation, e.g. on some Linuxes), | |
| thanks to Skip Montanaro. | |
| - The nis module seems broken when used with NIS+; unfortunately | |
| nobody knows how to fix it. It should still work with old NIS. | |
| New library modules | |
| ------------------- | |
| - New (still experimental) Perl-style regular expression module, | |
| re.py, which uses a new interface for matching as well as a new | |
| syntax; the new interface avoids the thread-unsafety of the regex | |
| interface. This comes with a helper extension reopmodule.c and vastly | |
| rewritten regexpr.c. Most work on this was done by Jeffrey Ollie, Tim | |
| Peters, and Andrew Kuchling. See the documentation libre.tex. In | |
| 1.5, the old regex module is still fully supported; in the future, it | |
| will become obsolete. | |
| - New module gzip.py; see zlib above. | |
| - New module keyword.py exports knowledge about Python's built-in | |
| keywords. (New version by Ka-Ping Yee.) | |
| - New module pprint.py (with documentation) which supports | |
| pretty-printing of lists, tuples, & dictionaries recursively. By Fred | |
| Drake. | |
| - New module code.py. The function code.compile_command() can | |
| determine whether an interactively entered command is complete or not, | |
| distinguishing incomplete from invalid input. (XXX Unfortunately, | |
| this seems broken at this moment, and I don't have the time to fix | |
| it. It's probably better to add an explicit interface to the parser | |
| for this.) | |
| - There is now a library module xdrlib.py which can read and write the | |
| XDR data format as used by Sun RPC, for example. It uses the struct | |
| module. | |
| Changes in library modules | |
| -------------------------- | |
| - Module codehack.py is now completely obsolete. | |
| - The pickle.py module has been updated to make it compatible with the | |
| new binary format that cPickle.c produces. By default it produces the | |
| old all-ASCII format compatible with the old pickle.py, still much | |
| faster than pickle.py; it will read both formats automatically. A few | |
| other updates have been made. | |
| - A new helper module, copy_reg.py, is provided to register extensions | |
| to the pickling code. | |
| - Revamped module tokenize.py is much more accurate and has an | |
| interface that makes it a breeze to write code to colorize Python | |
| source code. Contributed by Ka-Ping Yee. | |
| - In ihooks.py, ModuleLoader.load_module() now closes the file under | |
| all circumstances. | |
| - The tempfile.py module has a new class, TemporaryFile, which creates | |
| an open temporary file that will be deleted automatically when | |
| closed. This works on Windows and MacOS as well as on Unix. (Jim | |
| Fulton.) | |
| - Changes to the cgi.py module: Most imports are now done at the | |
| top of the module, which provides a speedup when using ni (Jim | |
| Fulton). The problem with file upload to a Windows platform is solved | |
| by using the new tempfile.TemporaryFile class; temporary files are now | |
| always opened in binary mode (Jim Fulton). The cgi.escape() function | |
| now takes an optional flag argument that quotes '"' to '"'. It | |
| is now possible to invoke cgi.py from a command line script, to test | |
| cgi scripts more easily outside an http server. There's an optional | |
| limit to the size of uploads to POST (Skip Montanaro). Added a | |
| 'strict_parsing' option to all parsing functions (Jim Fulton). The | |
| function parse_qs() now uses urllib.unquote() on the name as well as | |
| the value of fields (Clarence Gardner). The FieldStorage class now | |
| has a __len__() method. | |
| - httplib.py: the socket object is no longer closed; all HTTP/1.* | |
| responses are now accepted; and it is now thread-safe (by not using | |
| the regex module). | |
| - BaseHTTPModule.py: treat all HTTP/1.* versions the same. | |
| - The popen2.py module is now rewritten using a class, which makes | |
| access to the standard error stream and the process id of the | |
| subprocess possible. | |
| - Added timezone support to the rfc822.py module, in the form of a | |
| getdate_tz() method and a parsedate_tz() function; also a mktime_tz(). | |
| Also added recognition of some non-standard date formats, by Lars | |
| Wirzenius, and RFC 850 dates (Chris Lawrence). | |
| - mhlib.py: various enhancements, including almost compatible parsing | |
| of message sequence specifiers without invoking a subprocess. Also | |
| added a createmessage() method by Lars Wirzenius. | |
| - The StringIO.StringIO class now supports readline(nbytes). (Lars | |
| Wirzenius.) (Of course, you should be using cStringIO for performance.) | |
| - UserDict.py supports the new dictionary methods as well. | |
| - Improvements for whrandom.py by Tim Peters: use 32-bit arithmetic to | |
| speed it up, and replace 0 seed values by 1 to avoid degeneration. | |
| A bug was fixed in the test for invalid arguments. | |
| - Module ftplib.py: added support for parsing a .netrc file (Fred | |
| Drake). Also added an ntransfercmd() method to the FTP class, which | |
| allows access to the expected size of a transfer when available, and a | |
| parse150() function to the module which parses the corresponding 150 | |
| response. | |
| - urllib.py: the ftp cache is now limited to 10 entries. Added | |
| quote_plus() and unquote_plus() functions which are like quote() and | |
| unquote() but also replace spaces with '+' or vice versa, for | |
| encoding/decoding CGI form arguments. Catch all errors from the ftp | |
| module. HTTP requests now add the Host: header line. The proxy | |
| variable names are now mapped to lower case, for Windows. The | |
| spliturl() function no longer erroneously throws away all data past | |
| the first newline. The basejoin() function now interprets "../" | |
| correctly. I *believe* that the problems with "exception raised in | |
| __del__" under certain circumstances have been fixed (mostly by | |
| changes elsewher in the interpreter). | |
| - In urlparse.py, there is a cache for results in urlparse.urlparse(); | |
| its size limit is set to 20. Also, new URL schemes shttp, https, and | |
| snews are "supported". | |
| - shelve.py: use cPickle and cStringIO when available. Also added | |
| a sync() method, which calls the database's sync() method if there is | |
| one. | |
| - The mimetools.py module now uses the available Python modules for | |
| decoding quoted-printable, uuencode and base64 formats, rather than | |
| creating a subprocess. | |
| - The python debugger (pdb.py, and its base class bdb.py) now support | |
| conditional breakpoints. See the docs. | |
| - The modules base64.py, uu.py and quopri.py can now be used as simple | |
| command line utilities. | |
| - Various small fixes to the nntplib.py module that I can't bother to | |
| document in detail. | |
| - Sjoerd Mullender's mimify.py module now supports base64 encoding and | |
| includes functions to handle the funny encoding you sometimes see in mail | |
| headers. It is now documented. | |
| - mailbox.py: Added BabylMailbox. Improved the way the mailbox is | |
| gotten from the environment. | |
| - Many more modules now correctly open files in binary mode when this | |
| is necessary on non-Unix platforms. | |
| - The copying functions in the undocumented module shutil.py are | |
| smarter. | |
| - The Writer classes in the formatter.py module now have a flush() | |
| method. | |
| - The sgmllib.py module accepts hyphens and periods in the middle of | |
| attribute names. While this is against the SGML standard, there is | |
| some HTML out there that uses this... | |
| - The interface for the Python bytecode disassembler module, dis.py, | |
| has been enhanced quite a bit. There's now one main function, | |
| dis.dis(), which takes almost any kind of object (function, module, | |
| class, instance, method, code object) and disassembles it; without | |
| arguments it disassembles the last frame of the last traceback. The | |
| other functions have changed slightly, too. | |
| - The imghdr.py module recognizes new image types: BMP, PNG. | |
| - The string.py module has a new function replace(str, old, new, | |
| [maxsplit]) which does substring replacements. It is actually | |
| implemented in C in the strop module. The functions [r]find() an | |
| [r]index() have an optional 4th argument indicating the end of the | |
| substring to search, alsoo implemented by their strop counterparts. | |
| (Remember, never import strop -- import string uses strop when | |
| available with zero overhead.) | |
| - The string.join() function now accepts any sequence argument, not | |
| just lists and tuples. | |
| - The string.maketrans() requires its first two arguments to be | |
| present. The old version didn't require them, but there's not much | |
| point without them, and the documentation suggests that they are | |
| required, so we fixed the code to match the documentation. | |
| - The regsub.py module has a function clear_cache(), which clears its | |
| internal cache of compiled regular expressions. Also, the cache now | |
| takes the current syntax setting into account. (However, this module | |
| is now obsolete -- use the sub() or subn() functions or methods in the | |
| re module.) | |
| - The undocumented module Complex.py has been removed, now that Python | |
| has built-in complex numbers. A similar module remains as | |
| Demo/classes/Complex.py, as an example. | |
| Changes to the build process | |
| ---------------------------- | |
| - The way GNU readline is configured is totally different. The | |
| --with-readline configure option is gone. It is now an extension | |
| module, which may be loaded dynamically. You must enable it (and | |
| specify the correct libraries to link with) in the Modules/Setup file. | |
| Importing the module installs some hooks which enable command line | |
| editing. When the interpreter shell is invoked interactively, it | |
| attempts to import the readline module; when this fails, the default | |
| input mechanism is used. The hook variables are PyOS_InputHook and | |
| PyOS_ReadlineFunctionPointer. (Code contributed by Lee Busby, with | |
| ideas from William Magro.) | |
| - New build procedure: a single library, libpython1.5.a, is now built, | |
| which contains absolutely everything except for a one-line main() | |
| program (which calls Py_Main(argc, argv) to start the interpreter | |
| shell). This makes life much simpler for applications that need to | |
| embed Python. The serial number of the build is now included in the | |
| version string (sys.version). | |
| - As far as I can tell, neither gcc -Wall nor the Microsoft compiler | |
| emits a single warning any more when compiling Python. | |
| - A number of new Makefile variables have been added for special | |
| situations, e.g. LDLAST is appended to the link command. These are | |
| used by editing the Makefile or passing them on the make command | |
| line. | |
| - A set of patches from Lee Busby has been integrated that make it | |
| possible to catch floating point exceptions. Use the configure option | |
| --with-fpectl to enable the patches; the extension modules fpectl and | |
| fpetest provide control to enable/disable and test the feature, | |
| respectively. | |
| - The support for shared libraries under AIX is now simpler and more | |
| robust. Thanks to Vladimir Marangozov for revamping his own patches! | |
| - The Modules/makesetup script now reads a file Setup.local as well as | |
| a file Setup. Most changes to the Setup script can be done by editing | |
| Setup.local instead, which makes it easier to carry a particular setup | |
| over from one release to the next. | |
| - The Modules/makesetup script now copies any "include" lines it | |
| encounters verbatim into the output Makefile. It also recognizes .cxx | |
| and .cpp as C++ source files. | |
| - The configure script is smarter about C compiler options; e.g. with | |
| gcc it uses -O2 and -g when possible, and on some other platforms it | |
| uses -Olimit 1500 to avoid a warning from the optimizer about the main | |
| loop in ceval.c (which has more than 1000 basic blocks). | |
| - The configure script now detects whether malloc(0) returns a NULL | |
| pointer or a valid block (of length zero). This avoids the nonsense | |
| of always adding one byte to all malloc() arguments on most platforms. | |
| - The configure script has a new option, --with-dec-threads, to enable | |
| DEC threads on DEC Alpha platforms. Also, --with-threads is now an | |
| alias for --with-thread (this was the Most Common Typo in configure | |
| arguments). | |
| - Many changes in Doc/Makefile; amongst others, latex2html is now used | |
| to generate HTML from all latex documents. | |
| Change to the Python/C API | |
| -------------------------- | |
| - Because some interfaces have changed, the PYTHON_API macro has been | |
| bumped. Most extensions built for the old API version will still run, | |
| but I can't guarantee this. Python prints a warning message on | |
| version mismatches; it dumps core when the version mismatch causes a | |
| serious problem :-) | |
| - I've completed the Grand Renaming, with the help of Roger Masse and | |
| Barry Warsaw. This makes reading or debugging the code much easier. | |
| Many other unrelated code reorganizations have also been carried out. | |
| The allobjects.h header file is gone; instead, you would have to | |
| include Python.h followed by rename2.h. But you're better off running | |
| Tools/scripts/fixcid.py -s Misc/RENAME on your source, so you can omit | |
| the rename2.h; it will disappear in the next release. | |
| - Various and sundry small bugs in the "abstract" interfaces have been | |
| fixed. Thanks to all the (involuntary) testers of the Python 1.4 | |
| version! Some new functions have been added, e.g. PySequence_List(o), | |
| equivalent to list(o) in Python. | |
| - New API functions PyLong_FromUnsignedLong() and | |
| PyLong_AsUnsignedLong(). | |
| - The API functions in the file cgensupport.c are no longer | |
| supported. This file has been moved to Modules and is only ever | |
| compiled when the SGI specific 'gl' module is built. | |
| - PyObject_Compare() can now raise an exception. Check with | |
| PyErr_Occurred(). The comparison function in an object type may also | |
| raise an exception. | |
| - The slice interface uses an upper bound of INT_MAX when no explicit | |
| upper bound is given (e.x. for a[1:]). It used to ask the object for | |
| its length and do the calculations. | |
| - Support for multiple independent interpreters. See Doc/api.tex, | |
| functions Py_NewInterpreter() and Py_EndInterpreter(). Since the | |
| documentation is incomplete, also see the new Demo/pysvr example | |
| (which shows how to use these in a threaded application) and the | |
| source code. | |
| - There is now a Py_Finalize() function which "de-initializes" | |
| Python. It is possible to completely restart the interpreter | |
| repeatedly by calling Py_Finalize() followed by Py_Initialize(). A | |
| change of functionality in Py_Initialize() means that it is now a | |
| fatal error to call it while the interpreter is already initialized. | |
| The old, half-hearted Py_Cleanup() routine is gone. Use of Py_Exit() | |
| is deprecated (it is nothing more than Py_Finalize() followed by | |
| exit()). | |
| - There are no known memory leaks left. While Py_Finalize() doesn't | |
| free *all* allocated memory (some of it is hard to track down), | |
| repeated calls to Py_Finalize() and Py_Initialize() do not create | |
| unaccessible heap blocks. | |
| - There is now explicit per-thread state. (Inspired by, but not the | |
| same as, Greg Stein's free threading patches.) | |
| - There is now better support for threading C applications. There are | |
| now explicit APIs to manipulate the interpreter lock. Read the source | |
| or the Demo/pysvr example; the new functions are | |
| PyEval_{Acquire,Release}{Lock,Thread}(). | |
| - The test macro DEBUG has changed to Py_DEBUG, to avoid interference | |
| with other libraries' DEBUG macros. Likewise for any other test | |
| macros that didn't yet start with Py_. | |
| - New wrappers around malloc() and friends: Py_Malloc() etc. call | |
| malloc() and call PyErr_NoMemory() when it fails; PyMem_Malloc() call | |
| just malloc(). Use of these wrappers could be essential if multiple | |
| memory allocators exist (e.g. when using certain DLL setups under | |
| Windows). (Idea by Jim Fulton.) | |
| - New C API PyImport_Import() which uses whatever __import__() hook | |
| that is installed for the current execution environment. By Jim | |
| Fulton. | |
| - It is now possible for an extension module's init function to fail | |
| non-fatally, by calling one of the PyErr_* functions and returning. | |
| - The PyInt_AS_LONG() and PyFloat_AS_DOUBLE() macros now cast their | |
| argument to the proper type, like the similar PyString macros already | |
| did. (Suggestion by Marc-Andre Lemburg.) Similar for PyList_GET_SIZE | |
| and PyList_GET_ITEM. | |
| - Some of the Py_Get* function, like Py_GetVersion() (but not yet | |
| Py_GetPath()) are now declared as returning a const char *. (More | |
| should follow.) | |
| - Changed the run-time library to check for exceptions after object | |
| comparisons. PyObject_Compare() can now return an exception; use | |
| PyErr_Occurred() to check (there is *no* special return value). | |
| - PyFile_WriteString() and Py_Flushline() now return error indicators | |
| instead of clearing exceptions. This fixes an obscure bug where using | |
| these would clear a pending exception, discovered by Just van Rossum. | |
| - There's a new function, PyArg_ParseTupleAndKeywords(), which parses | |
| an argument list including keyword arguments. Contributed by Geoff | |
| Philbrick. | |
| - PyArg_GetInt() is gone. | |
| - It's no longer necessary to include graminit.h when calling one of | |
| the extended parser API functions. The three public grammar start | |
| symbols are now in Python.h as Py_single_input, Py_file_input, and | |
| Py_eval_input. | |
| - The CObject interface has a new function, | |
| PyCObject_Import(module, name). It calls PyCObject_AsVoidPtr() | |
| on the object referenced by "module.name". | |
| Tkinter | |
| ------- | |
| - On popular demand, _tkinter once again installs a hook for readline | |
| that processes certain Tk events while waiting for the user to type | |
| (using PyOS_InputHook). | |
| - A patch by Craig McPheeters plugs the most obnoxious memory leaks, | |
| caused by command definitions referencing widget objects beyond their | |
| lifetime. | |
| - New standard dialog modules: tkColorChooser.py, tkCommonDialog.py, | |
| tkMessageBox.py, tkFileDialog.py, tkSimpleDialog.py These interface | |
| with the new Tk dialog scripts, and provide more "native platform" | |
| style file selection dialog boxes on some platforms. Contributed by | |
| Fredrik Lundh. | |
| - Tkinter.py: when the first Tk object is destroyed, it sets the | |
| hiddel global _default_root to None, so that when another Tk object is | |
| created it becomes the new default root. Other miscellaneous | |
| changes and fixes. | |
| - The Image class now has a configure method. | |
| - Added a bunch of new winfo options to Tkinter.py; we should now be | |
| up to date with Tk 4.2. The new winfo options supported are: | |
| manager, pointerx, pointerxy, pointery, server, viewable, visualid, | |
| visualsavailable. | |
| - The broken bind() method on Canvas objects defined in the Canvas.py | |
| module has been fixed. The CanvasItem and Group classes now also have | |
| an unbind() method. | |
| - The problem with Tkinter.py falling back to trying to import | |
| "tkinter" when "_tkinter" is not found has been fixed -- it no longer | |
| tries "tkinter", ever. This makes diagnosing the problem "_tkinter | |
| not configured" much easier and will hopefully reduce the newsgroup | |
| traffic on this topic. | |
| - The ScrolledText module once again supports the 'cnf' parameter, to | |
| be compatible with the examples in Mark Lutz' book (I know, I know, | |
| too late...) | |
| - The _tkinter.c extension module has been revamped. It now support | |
| Tk versions 4.1 through 8.0; support for 4.0 has been dropped. It | |
| works well under Windows and Mac (with the latest Tk ports to those | |
| platforms). It also supports threading -- it is safe for one | |
| (Python-created) thread to be blocked in _tkinter.mainloop() while | |
| other threads modify widgets. To make the changes visible, those | |
| threads must use update_idletasks()method. (The patch for threading | |
| in 1.5a3 was broken; in 1.5a4, it is back in a different version, | |
| which requires access to the Tcl sources to get it to work -- hence it | |
| is disabled by default.) | |
| - A bug in _tkinter.c has been fixed, where Split() with a string | |
| containing an unmatched '"' could cause an exception or core dump. | |
| - Unfortunately, on Windows and Mac, Tk 8.0 no longer supports | |
| CreateFileHandler, so _tkinter.createfilehandler is not available on | |
| those platforms when using Tk 8.0 or later. I will have to rethink | |
| how to interface with Tcl's lower-level event mechanism, or with its | |
| channels (which are like Python's file-like objects). Jack Jansen has | |
| provided a fix for the Mac, so createfilehandler *is* actually | |
| supported there; maybe I can adapt his fix for Windows. | |
| Tools and Demos | |
| --------------- | |
| - A new regression test suite is provided, which tests most of the | |
| standard and built-in modules. The regression test is run by invoking | |
| the script Lib/test/regrtest.py. Barry Warsaw wrote the test harnass; | |
| he and Roger Masse contributed most of the new tests. | |
| - New tool: faqwiz -- the CGI script that is used to maintain the | |
| Python FAQ (http://grail.cnri.reston.va.us/cgi-bin/faqw.py). In | |
| Tools/faqwiz. | |
| - New tool: webchecker -- a simple extensible web robot that, when | |
| aimed at a web server, checks that server for dead links. Available | |
| are a command line utility as well as a Tkinter based GUI version. In | |
| Tools/webchecker. A simplified version of this program is dissected | |
| in my article in O'Reilly's WWW Journal, the issue on Scripting | |
| Languages (Vol 2, No 2); Scripting the Web with Python (pp 97-120). | |
| Includes a parser for robots.txt files by Skip Montanaro. | |
| - New small tools: cvsfiles.py (prints a list of all files under CVS | |
| n a particular directory tree), treesync.py (a rather Guido-specific | |
| script to synchronize two source trees, one on Windows NT, the other | |
| one on Unix under CVS but accessible from the NT box), and logmerge.py | |
| (sort a collection of RCS or CVS logs by date). In Tools/scripts. | |
| - The freeze script now also works under Windows (NT). Another | |
| feature allows the -p option to be pointed at the Python source tree | |
| instead of the installation prefix. This was loosely based on part of | |
| xfreeze by Sam Rushing and Bill Tutt. | |
| - New examples (Demo/extend) that show how to use the generic | |
| extension makefile (Misc/Makefile.pre.in). | |
| - Tools/scripts/h2py.py now supports C++ comments. | |
| - Tools/scripts/pystone.py script is upgraded to version 1.1; there | |
| was a bug in version 1.0 (distributed with Python 1.4) that leaked | |
| memory. Also, in 1.1, the LOOPS variable is incremented to 10000. | |
| - Demo/classes/Rat.py completely rewritten by Sjoerd Mullender. | |
| Windows (NT and 95) | |
| ------------------- | |
| - New project files for Developer Studio (Visual C++) 5.0 for Windows | |
| NT (the old VC++ 4.2 Makefile is also still supported, but will | |
| eventually be withdrawn due to its bulkiness). | |
| - See the note on the new module search path in the "Miscellaneous" section | |
| above. | |
| - Support for Win32s (the 32-bit Windows API under Windows 3.1) is | |
| basically withdrawn. If it still works for you, you're lucky. | |
| - There's a new extension module, msvcrt.c, which provides various | |
| low-level operations defined in the Microsoft Visual C++ Runtime Library. | |
| These include locking(), setmode(), get_osfhandle(), set_osfhandle(), and | |
| console I/O functions like kbhit(), getch() and putch(). | |
| - The -u option not only sets the standard I/O streams to unbuffered | |
| status, but also sets them in binary mode. (This can also be done | |
| using msvcrt.setmode(), by the way.) | |
| - The, sys.prefix and sys.exec_prefix variables point to the directory | |
| where Python is installed, or to the top of the source tree, if it was run | |
| from there. | |
| - The various os.path modules (posixpath, ntpath, macpath) now support | |
| passing more than two arguments to the join() function, so | |
| os.path.join(a, b, c) is the same as os.path.join(a, os.path.join(b, | |
| c)). | |
| - The ntpath module (normally used as os.path) supports ~ to $HOME | |
| expansion in expanduser(). | |
| - The freeze tool now works on Windows. | |
| - See also the Tkinter category for a sad note on | |
| _tkinter.createfilehandler(). | |
| - The truncate() method for file objects now works on Windows. | |
| - Py_Initialize() is no longer called when the DLL is loaded. You | |
| must call it yourself. | |
| - The time module's clock() function now has good precision through | |
| the use of the Win32 API QueryPerformanceCounter(). | |
| - Mark Hammond will release Python 1.5 versions of PythonWin and his | |
| other Windows specific code: the win32api extensions, COM/ActiveX | |
| support, and the MFC interface. | |
| Mac | |
| --- | |
| - As always, the Macintosh port will be done by Jack Jansen. He will | |
| make a separate announcement for the Mac specific source code and the | |
| binary distribution(s) when these are ready. | |
| ====================================================================== | |
| ===================================== | |
| ==> Release 1.4 (October 25 1996) <== | |
| ===================================== | |
| (Starting in reverse chronological order:) | |
| - Changed disclaimer notice. | |
| - Added SHELL=/bin/sh to Misc/Makefile.pre.in -- some Make versions | |
| default to the user's login shell. | |
| - In Lib/tkinter/Tkinter.py, removed bogus binding of <Delete> in Text | |
| widget, and bogus bspace() function. | |
| - In Lib/cgi.py, bumped __version__ to 2.0 and restored a truncated | |
| paragraph. | |
| - Fixed the NT Makefile (PC/vc40.mak) for VC 4.0 to set /MD for all | |
| subprojects, and to remove the (broken) experimental NumPy | |
| subprojects. | |
| - In Lib/py_compile.py, cast mtime to long() so it will work on Mac | |
| (where os.stat() returns mtimes as floats.) | |
| - Set self.rfile unbuffered (like self.wfile) in SocketServer.py, to | |
| fix POST in CGIHTTPServer.py. | |
| - Version 2.83 of Misc/python-mode.el for Emacs is included. | |
| - In Modules/regexmodule.c, fixed symcomp() to correctly handle a new | |
| group starting immediately after a group tag. | |
| - In Lib/SocketServer.py, changed the mode for rfile to unbuffered. | |
| - In Objects/stringobject.c, fixed the compare function to do the | |
| first char comparison in unsigned mode, for consistency with the way | |
| other characters are compared by memcmp(). | |
| - In Lib/tkinter/Tkinter.py, fixed Scale.get() to support floats. | |
| - In Lib/urllib.py, fix another case where openedurl wasn't set. | |
| (XXX Sorry, the rest is in totally random order. No time to fix it.) | |
| - SyntaxError exceptions detected during code generation | |
| (e.g. assignment to an expression) now include a line number. | |
| - Don't leave trailing / or \ in script directory inserted in front of | |
| sys.path. | |
| - Added a note to Tools/scripts/classfix.py abouts its historical | |
| importance. | |
| - Added Misc/Makefile.pre.in, a universal Makefile for extensions | |
| built outside the distribution. | |
| - Rewritten Misc/faq2html.py, by Ka-Ping Yee. | |
| - Install shared modules with mode 555 (needed for performance on some | |
| platforms). | |
| - Some changes to standard library modules to avoid calling append() | |
| with more than one argument -- while supported, this should be | |
| outlawed, and I don't want to set a bad example. | |
| - bdb.py (and hence pdb.py) supports calling run() with a code object | |
| instead of a code string. | |
| - Fixed an embarrassing bug cgi.py which prevented correct uploading | |
| of binary files from Netscape (which doesn't distinguish between | |
| binary and text files). Also added dormant logging support, which | |
| makes it easier to debug the cgi module itself. | |
| - Added default writer to constructor of NullFormatter class. | |
| - Use binary mode for socket.makefile() calls in ftplib.py. | |
| - The ihooks module no longer "installs" itself upon import -- this | |
| was an experimental feature that helped ironing out some bugs but that | |
| slowed down code that imported it without the need to install it | |
| (e.g. the rexec module). Also close the file in some cases and add | |
| the __file__ attribute to loaded modules. | |
| - The test program for mailbox.py is now more useful. | |
| - Added getparamnames() to Message class in mimetools.py -- it returns | |
| the names of parameters to the content-type header. | |
| - Fixed a typo in ni that broke the loop stripping "__." from names. | |
| - Fix sys.path[0] for scripts run via pdb.py's new main program. | |
| - profile.py can now also run a script, like pdb. | |
| - Fix a small bug in pyclbr -- don't add names starting with _ when | |
| emulating from ... import *. | |
| - Fixed a series of embarrassing typos in rexec's handling of standard | |
| I/O redirection. Added some more "safe" built-in modules: cmath, | |
| errno, operator. | |
| - Fixed embarrassing typo in shelve.py. | |
| - Added SliceType and EllipsisType to types.py. | |
| - In urllib.py, added handling for error 301 (same as 302); added | |
| geturl() method to get the URL after redirection. | |
| - Fixed embarrassing typo in xdrlib.py. Also fixed typo in Setup.in | |
| for _xdrmodule.c and removed redundant #include from _xdrmodule.c. | |
| - Fixed bsddbmodule.c to add binary mode indicator on platforms that | |
| have it. This should make it working on Windows NT. | |
| - Changed last uses of #ifdef NT to #ifdef MS_WINDOWS or MS_WIN32, | |
| whatever applies. Also rationalized some other tests for various MS | |
| platforms. | |
| - Added the sources for the NT installer script used for Python | |
| 1.4beta3. Not tested with this release, but better than nothing. | |
| - A compromise in pickle's defenses against Trojan horses: a | |
| user-defined function is now okay where a class is expected. A | |
| built-in function is not okay, to prevent pickling something that | |
| will execute os.system("rm -f *") when unpickling. | |
| - dis.py will print the name of local variables referenced by local | |
| load/store/delete instructions. | |
| - Improved portability of SimpleHTTPServer module to non-Unix | |
| platform. | |
| - The thread.h interface adds an extra argument to down_sema(). This | |
| only affects other C code that uses thread.c; the Python thread module | |
| doesn't use semaphores (which aren't provided on all platforms where | |
| Python threads are supported). Note: on NT, this change is not | |
| implemented. | |
| - Fixed some typos in abstract.h; corrected signature of | |
| PyNumber_Coerce, added PyMapping_DelItem. Also fixed a bug in | |
| abstract.c's PyObject_CallMethod(). | |
| - apply(classname, (), {}) now works even if the class has no | |
| __init__() method. | |
| - Implemented complex remainder and divmod() (these would dump core!). | |
| Conversion of complex numbers to int, long int or float now raises an | |
| exception, since there is no meaningful way to do it without losing | |
| information. | |
| - Fixed bug in built-in complex() function which gave the wrong result | |
| for two real arguments. | |
| - Change the hash algorithm for strings -- the multiplier is now | |
| 1000003 instead of 3, which gives better spread for short strings. | |
| - New default path for Windows NT, the registry structure now supports | |
| default paths for different install packages. (Mark Hammond -- the | |
| next PythonWin release will use this.) | |
| - Added more symbols to the python_nt.def file. | |
| - When using GNU readline, set rl_readline_name to "python". | |
| - The Ellipses built-in name has been renamed to Ellipsis -- this is | |
| the correct singular form. Thanks to Ka-Ping Yee, who saved us from | |
| eternal embarrassment. | |
| - Bumped the PYTHON_API_VERSION to 1006, due to the Ellipses -> | |
| Ellipsis name change. | |
| - Updated the library reference manual. Added documentation of | |
| restricted mode (rexec, Bastion) and the formatter module (for use | |
| with the htmllib module). Fixed the documentation of htmllib | |
| (finally). | |
| - The reference manual is now maintained in FrameMaker. | |
| - Upgraded scripts Doc/partparse.py and Doc/texi2html.py. | |
| - Slight improvements to Doc/Makefile. | |
| - Added fcntl.lockf(). This should be used for Unix file locking | |
| instead of the posixfile module; lockf() is more portable. | |
| - The getopt module now supports long option names, thanks to Lars | |
| Wizenius. | |
| - Plenty of changes to Tkinter and Canvas, mostly due to Fred Drake | |
| and Nils Fischbeck. | |
| - Use more bits of time.time() in whrandom's default seed(). | |
| - Performance hack for regex module's regs attribute. | |
| - Don't close already closed socket in socket module. | |
| - Correctly handle separators containing embedded nulls in | |
| strop.split, strop.find and strop.rfind. Also added more detail to | |
| error message for strop.atoi and friends. | |
| - Moved fallback definition for hypot() to Python/hypot.c. | |
| - Added fallback definition for strdup, in Python/strdup.c. | |
| - Fixed some bugs where a function would return 0 to indicate an error | |
| where it should return -1. | |
| - Test for error returned by time.localtime(), and rationalized its MS | |
| tests. | |
| - Added Modules/Setup.local file, which is processed after Setup. | |
| - Corrected bug in toplevel Makefile.in -- execution of regen script | |
| would not use the right PATH and PYTHONPATH. | |
| - Various and sundry NeXT configuration changes (sigh). | |
| - Support systems where libreadline needs neither termcap nor curses. | |
| - Improved ld_so_aix script and python.exp file (for AIX). | |
| - More stringent test for working <stdarg.h> in configure script. | |
| - Removed Demo/www subdirectory -- it was totally out of date. | |
| - Improved demos and docs for Fred Drake's parser module; fixed one | |
| typo in the module itself. | |
| ========================================= | |
| ==> Release 1.4beta3 (August 26 1996) <== | |
| ========================================= | |
| (XXX This is less readable that it should. I promise to restructure | |
| it for the final 1.4 release.) | |
| What's new in 1.4beta3 (since beta2)? | |
| ------------------------------------- | |
| - Name mangling to implement a simple form of class-private variables. | |
| A name of the form "__spam" can't easily be used outside the class. | |
| (This was added in 1.4beta3, but left out of the 1.4beta3 release | |
| message.) | |
| - In urllib.urlopen(): HTTP URLs containing user:passwd@host are now | |
| handled correctly when using a proxy server. | |
| - In ntpath.normpath(): don't truncate to 8+3 format. | |
| - In mimetools.choose_boundary(): don't die when getuid() or getpid() | |
| aren't defined. | |
| - Module urllib: some optimizations to (un)quoting. | |
| - New module MimeWriter for writing MIME documents. | |
| - More changes to formatter module. | |
| - The freeze script works once again and is much more robust (using | |
| sys.prefix etc.). It also supports a -o option to specify an | |
| output directory. | |
| - New module whichdb recognizes dbm, gdbm and bsddb/dbhash files. | |
| - The Doc/Makefile targets have been reorganized somewhat to remove the | |
| insistence on always generating PostScript. | |
| - The texinfo to html filter (Doc/texi2html.py) has been improved somewhat. | |
| - "errors.h" has been renamed to "pyerrors.h" to resolve a long-standing | |
| name conflict on the Mac. | |
| - Linking a module compiled with a different setting for Py_TRACE_REFS now | |
| generates a linker error rather than a core dump. | |
| - The cgi module has a new convenience function print_exception(), which | |
| formats a python exception using HTML. It also fixes a bug in the | |
| compatibility code and adds a dubious feature which makes it possible to | |
| have two query strings, one in the URL and one in the POST data. | |
| - A subtle change in the unpickling of class instances makes it possible | |
| to unpickle in restricted execution mode, where the __dict__ attribute is | |
| not available (but setattr() is). | |
| - Documentation for os.path.splitext() (== posixpath.splitext()) has been | |
| cleared up. It splits at the *last* dot. | |
| - posixfile locking is now also correctly supported on AIX. | |
| - The tempfile module once again honors an initial setting of tmpdir. It | |
| now works on Windows, too. | |
| - The traceback module has some new functions to extract, format and print | |
| the active stack. | |
| - Some translation functions in the urllib module have been made a little | |
| less sluggish. | |
| - The addtag_* methods for Canvas widgets in Tkinter as well as in the | |
| separate Canvas class have been fixed so they actually do something | |
| meaningful. | |
| - A tiny _test() function has been added to Tkinter.py. | |
| - A generic Makefile for dynamically loaded modules is provided in the Misc | |
| subdirectory (Misc/gMakefile). | |
| - A new version of python-mode.el for Emacs is provided. See | |
| http://www.python.org/ftp/emacs/pmdetails.html for details. The | |
| separate file pyimenu.el is no longer needed, imenu support is folded | |
| into python-mode.el. | |
| - The configure script can finally correctly find the readline library in a | |
| non-standard location. The LDFLAGS variable is passed on the Makefiles | |
| from the configure script. | |
| - Shared libraries are now installed as programs (i.e. with executable | |
| permission). This is required on HP-UX and won't hurt on other systems. | |
| - The objc.c module is no longer part of the distribution. Objective-C | |
| support may become available as contributed software on the ftp site. | |
| - The sybase module is no longer part of the distribution. A much | |
| improved sybase module is available as contributed software from the | |
| ftp site. | |
| - _tkinter is now compatible with Tcl 7.5 / Tk 4.1 patch1 on Windows and | |
| Mac (don't use unpatched Tcl/Tk!). The default line in the Setup.in file | |
| now links with Tcl 7.5 / Tk 4.1 rather than 7.4/4.0. | |
| - In Setup, you can now write "*shared*" instead of "*noconfig*", and you | |
| can use *.so and *.sl as shared libraries. | |
| - Some more fidgeting for AIX shared libraries. | |
| - The mpz module is now compatible with GMP 2.x. (Not tested by me.) | |
| (Note -- a complete replacement by Niels Mo"ller, called gpmodule, is | |
| available from the contrib directory on the ftp site.) | |
| - A warning is written to sys.stderr when a __del__ method raises an | |
| exception (formerly, such exceptions were completely ignored). | |
| - The configure script now defines HAVE_OLD_CPP if the C preprocessor is | |
| incapable of ANSI style token concatenation and stringification. | |
| - All source files (except a few platform specific modules) are once again | |
| compatible with K&R C compilers as well as ANSI compilers. In particular, | |
| ANSI-isms have been removed or made conditional in complexobject.c, | |
| getargs.c and operator.c. | |
| - The abstract object API has three new functions, PyObject_DelItem, | |
| PySequence_DelItem, and PySequence_DelSlice. | |
| - The operator module has new functions delitem and delslice, and the | |
| functions "or" and "and" are renamed to "or_" and "and_" (since "or" and | |
| "and" are reserved words). ("__or__" and "__and__" are unchanged.) | |
| - The environment module is no longer supported; putenv() is now a function | |
| in posixmodule (also under NT). | |
| - Error in filter(<function>, "") has been fixed. | |
| - Unrecognized keyword arguments raise TypeError, not KeyError. | |
| - Better portability, fewer bugs and memory leaks, fewer compiler warnings, | |
| some more documentation. | |
| - Bug in float power boundary case (0.0 to the negative integer power) | |
| fixed. | |
| - The test of negative number to the float power has been moved from the | |
| built-in pow() function to floatobject.c (so complex numbers can yield the | |
| correct result). | |
| - The bug introduced in beta2 where shared libraries loaded (using | |
| dlopen()) from the current directory would fail, has been fixed. | |
| - Modules imported as shared libraries now also have a __file__ attribute, | |
| giving the filename from which they were loaded. The only modules without | |
| a __file__ attribute now are built-in modules. | |
| - On the Mac, dynamically loaded modules can end in either ".slb" or | |
| ".<platform>.slb" where <platform> is either "CFM68K" or "ppc". The ".slb" | |
| extension should only be used for "fat" binaries. | |
| - C API addition: marshal.c now supports | |
| PyMarshal_WriteObjectToString(object). | |
| - C API addition: getargs.c now supports | |
| PyArg_ParseTupleAndKeywords(args, kwdict, format, kwnames, ...) | |
| to parse keyword arguments. | |
| - The PC versioning scheme (sys.winver) has changed once again. the | |
| version number is now "<digit>.<digit>.<digit>.<apiversion>", where the | |
| first three <digit>s are the Python version (e.g. "1.4.0" for Python 1.4, | |
| "1.4.1" for Python 1.4.1 -- the beta level is not included) and | |
| <apiversion> is the four-digit PYTHON_API_VERSION (currently 1005). | |
| - h2py.py accepts whitespace before the # in CPP directives | |
| - On Solaris 2.5, it should now be possible to use either Posix threads or | |
| Solaris threads (XXX: how do you select which is used???). (Note: the | |
| Python pthreads interface doesn't fully support semaphores yet -- anyone | |
| care to fix this?) | |
| - Thread support should now work on AIX, using either DCE threads or | |
| pthreads. | |
| - New file Demo/sockets/unicast.py | |
| - Working Mac port, with CFM68K support, with Tk 4.1 support (though not | |
| both) (XXX) | |
| - New project setup for PC port, now compatible with PythonWin, with | |
| _tkinter and NumPy support (XXX) | |
| - New module site.py (XXX) | |
| - New module xdrlib.py and optional support module _xdrmodule.c (XXX) | |
| - parser module adapted to new grammar, complete w/ Doc & Demo (XXX) | |
| - regen script fixed (XXX) | |
| - new machdep subdirectories Lib/{aix3,aix4,next3_3,freebsd2,linux2} (XXX) | |
| - testall now also tests math module (XXX) | |
| - string.atoi c.s. now raise an exception for an empty input string. | |
| - At last, it is no longer necessary to define HAVE_CONFIG_H in order to | |
| have config.h included at various places. | |
| - Unrecognized keyword arguments now raise TypeError rather than KeyError. | |
| - The makesetup script recognizes files with extension .so or .sl as | |
| (shared) libraries. | |
| - 'access' is no longer a reserved word, and all code related to its | |
| implementation is gone (or at least #ifdef'ed out). This should make | |
| Python a little speedier too! | |
| - Performance enhancements suggested by Sjoerd Mullender. This includes | |
| the introduction of two new optional function pointers in type object, | |
| getattro and setattro, which are like getattr and setattr but take a | |
| string object instead of a C string pointer. | |
| - New operations in string module: lstrip(s) and rstrip(s) strip whitespace | |
| only on the left or only on the right, A new optional third argument to | |
| split() specifies the maximum number of separators honored (so | |
| splitfields(s, sep, n) returns a list of at most n+1 elements). (Since | |
| 1.3, splitfields(s, None) is totally equivalent to split(s).) | |
| string.capwords() has an optional second argument specifying the | |
| separator (which is passed to split()). | |
| - regsub.split() has the same addition as string.split(). regsub.splitx(s, | |
| sep, maxsep) implements the functionality that was regsub.split(s, 1) in | |
| 1.4beta2 (return a list containing the delimiters as well as the words). | |
| - Final touch for AIX loading, rewritten Misc/AIX-NOTES. | |
| - In Modules/_tkinter.c, when using Tk 4.1 or higher, use className | |
| argument to _tkinter.create() to set Tcl's argv0 variable, so X | |
| resources use the right resource class again. | |
| - Add #undef fabs to Modules/mathmodule.c for macintosh. | |
| - Added some macro renames for AIX in Modules/operator.c. | |
| - Removed spurious 'E' from Doc/liberrno.tex. | |
| - Got rid of some cruft in Misc/ (dlMakefile, pyimenu.el); added new | |
| Misc/gMakefile and new version of Misc/python-mode.el. | |
| - Fixed typo in Lib/ntpath.py (islink has "return false" which gives a | |
| NameError). | |
| - Added missing "from types import *" to Lib/tkinter/Canvas.py. | |
| - Added hint about using default args for __init__ to pickle docs. | |
| - Corrected typo in Inclide/abstract.h: PySequence_Lenth -> | |
| PySequence_Length. | |
| - Some improvements to Doc/texi2html.py. | |
| - In Python/import.c, Cast unsigned char * in struct _frozen to char * | |
| in calls to rds_object(). | |
| - In doc/ref4.tex, added note about scope of lambda bodies. | |
| What's new in 1.4beta2 (since beta1)? | |
| ------------------------------------- | |
| - Portability bug in the md5.h header solved. | |
| - The PC build procedure now really works, and sets sys.platform to a | |
| meaningful value (a few things were botched in beta 1). Lib/dos_8x3 | |
| is now a standard part of the distribution (alas). | |
| - More improvements to the installation procedure. Typing "make install" | |
| now inserts the version number in the pathnames of almost everything | |
| installed, and creates the machine dependent modules (FCNTL.py etc.) if not | |
| supplied by the distribution. (XXX There's still a problem with the latter | |
| because the "regen" script requires that Python is installed. Some manual | |
| intervention may still be required.) (This has been fixed in 1.4beta3.) | |
| - New modules: errno, operator (XXX). | |
| - Changes for use with Numerical Python: built-in function slice() and | |
| Ellipses object, and corresponding syntax: | |
| x[lo:hi:stride] == x[slice(lo, hi, stride)] | |
| x[a, ..., z] == x[(a, Ellipses, z)] | |
| - New documentation for errno and cgi modules. | |
| - The directory containing the script passed to the interpreter is | |
| inserted in from of sys.path; "." is no longer a default path | |
| component. | |
| - Optional third string argument to string.translate() specifies | |
| characters to delete. New function string.maketrans() creates a | |
| translation table for translate() or for regex.compile(). | |
| - Module posix (and hence module os under Unix) now supports putenv(). | |
| Moreover, module os is enhanced so that if putenv() is supported, | |
| assignments to os.environ entries make the appropriate putenv() call. | |
| (XXX the putenv() implementation can leak a small amount of memory per | |
| call.) | |
| - pdb.py can now be invoked from the command line to debug a script: | |
| python pdb.py <script> <arg> ... | |
| - Much improved parseaddr() in rfc822. | |
| - In cgi.py, you can now pass an alternative value for environ to | |
| nearly all functions. | |
| - You can now assign to instance variables whose name begins and ends | |
| with '__'. | |
| - New version of Fred Drake's parser module and associates (token, | |
| symbol, AST). | |
| - New PYTHON_API_VERSION value and .pyc file magic number (again!). | |
| - The "complex" internal structure type is now called "Py_complex" to | |
| avoid name conflicts. | |
| - Numerous small bugs fixed. | |
| - Slight pickle speedups. | |
| - Some slight speedups suggested by Sjoerd (more coming in 1.4 final). | |
| - NeXT portability mods by Bill Bumgarner integrated. | |
| - Modules regexmodule.c, bsddbmodule.c and xxmodule.c have been | |
| converted to new naming style. | |
| What's new in 1.4beta1 (since 1.3)? | |
| ----------------------------------- | |
| - Added sys.platform and sys.exec_platform for Bill Janssen. | |
| - Installation has been completely overhauled. "make install" now installs | |
| everything, not just the python binary. Installation uses the install-sh | |
| script (borrowed from X11) to install each file. | |
| - New functions in the posix module: mkfifo, plock, remove (== unlink), | |
| and ftruncate. More functions are also available under NT. | |
| - New function in the fcntl module: flock. | |
| - Shared library support for FreeBSD. | |
| - The --with-readline option can now be used without a DIRECTORY argument, | |
| for systems where libreadline.* is in one of the standard places. It is | |
| also possible for it to be a shared library. | |
| - The extension tkinter has been renamed to _tkinter, to avoid confusion | |
| with Tkinter.py oncase insensitive file systems. It now supports Tk 4.1 as | |
| well as 4.0. | |
| - Author's change of address from CWI in Amsterdam, The Netherlands, to | |
| CNRI in Reston, VA, USA. | |
| - The math.hypot() function is now always available (if it isn't found in | |
| the C math library, Python provides its own implementation). | |
| - The latex documentation is now compatible with latex2e, thanks to David | |
| Ascher. | |
| - The expression x**y is now equivalent to pow(x, y). | |
| - The indexing expression x[a, b, c] is now equivalent to x[(a, b, c)]. | |
| - Complex numbers are now supported. Imaginary constants are written with | |
| a 'j' or 'J' prefix, general complex numbers can be formed by adding a real | |
| part to an imaginary part, like 3+4j. Complex numbers are always stored in | |
| floating point form, so this is equivalent to 3.0+4.0j. It is also | |
| possible to create complex numbers with the new built-in function | |
| complex(re, [im]). For the footprint-conscious, complex number support can | |
| be disabled by defining the symbol WITHOUT_COMPLEX. | |
| - New built-in function list() is the long-awaited counterpart of tuple(). | |
| - There's a new "cmath" module which provides the same functions as the | |
| "math" library but with complex arguments and results. (There are very | |
| good reasons why math.sqrt(-1) still raises an exception -- you have to use | |
| cmath.sqrt(-1) to get 1j for an answer.) | |
| - The Python.h header file (which is really the same as allobjects.h except | |
| it disables support for old style names) now includes several more files, | |
| so you have to have fewer #include statements in the average extension. | |
| - The NDEBUG symbol is no longer used. Code that used to be dependent on | |
| the presence of NDEBUG is now present on the absence of DEBUG. TRACE_REFS | |
| and REF_DEBUG have been renamed to Py_TRACE_REFS and Py_REF_DEBUG, | |
| respectively. At long last, the source actually compiles and links without | |
| errors when this symbol is defined. | |
| - Several symbols that didn't follow the new naming scheme have been | |
| renamed (usually by adding to rename2.h) to use a Py or _Py prefix. There | |
| are no external symbols left without a Py or _Py prefix, not even those | |
| defined by sources that were incorporated from elsewhere (regexpr.c, | |
| md5c.c). (Macros are a different story...) | |
| - There are now typedefs for the structures defined in config.c and | |
| frozen.c. | |
| - New PYTHON_API_VERSION value and .pyc file magic number. | |
| - New module Bastion. (XXX) | |
| - Improved performance of StringIO module. | |
| - UserList module now supports + and * operators. | |
| - The binhex and binascii modules now actually work. | |
| - The cgi module has been almost totally rewritten and documented. | |
| It now supports file upload and a new data type to handle forms more | |
| flexibly. | |
| - The formatter module (for use with htmllib) has been overhauled (again). | |
| - The ftplib module now supports passive mode and has doc strings. | |
| - In (ideally) all places where binary files are read or written, the file | |
| is now correctly opened in binary mode ('rb' or 'wb') so the code will work | |
| on Mac or PC. | |
| - Dummy versions of os.path.expandvars() and expanduser() are now provided | |
| on non-Unix platforms. | |
| - Module urllib now has two new functions url2pathname and pathname2url | |
| which turn local filenames into "file:..." URLs using the same rules as | |
| Netscape (why be different). it also supports urlretrieve() with a | |
| pathname parameter, and honors the proxy environment variables (http_proxy | |
| etc.). The URL parsing has been improved somewhat, too. | |
| - Micro improvements to urlparse. Added urlparse.urldefrag() which | |
| removes a trailing ``#fragment'' if any. | |
| - The mailbox module now supports MH style message delimiters as well. | |
| - The mhlib module contains some new functionality: setcontext() to set the | |
| current folder and parsesequence() to parse a sequence as commonly passed | |
| to MH commands (e.g. 1-10 or last:5). | |
| - New module mimify for conversion to and from MIME format of email | |
| messages. | |
| - Module ni now automatically installs itself when first imported -- this | |
| is against the normal rule that modules should define classes and functions | |
| but not invoke them, but appears more useful in the case that two | |
| different, independent modules want to use ni's features. | |
| - Some small performance enhancements in module pickle. | |
| - Small interface change to the profile.run*() family of functions -- more | |
| sensible handling of return values. | |
| - The officially registered Mac creator for Python files is 'Pyth'. This | |
| replaces 'PYTH' which was used before but never registered. | |
| - Added regsub.capwords(). (XXX) | |
| - Added string.capwords(), string.capitalize() and string.translate(). | |
| (XXX) | |
| - Fixed an interface bug in the rexec module: it was impossible to pass a | |
| hooks instance to the RExec class. rexec now also supports the dynamic | |
| loading of modules from shared libraries. Some other interfaces have been | |
| added too. | |
| - Module rfc822 now caches the headers in a dictionary for more efficient | |
| lookup. | |
| - The sgmllib module now understands a limited number of SGML "shorthands" | |
| like <A/.../ for <A>...</A>. (It's not clear that this was a good idea...) | |
| - The tempfile module actually tries a number of different places to find a | |
| usable temporary directory. (This was prompted by certain Linux | |
| installations that appear to be missing a /usr/tmp directory.) [A bug in | |
| the implementation that would ignore a pre-existing tmpdir global has been | |
| fixed in beta3.] | |
| - Much improved and enhanved FileDialog module for Tkinter. | |
| - Many small changes to Tkinter, to bring it more in line with Tk 4.0 (as | |
| well as Tk 4.1). | |
| - New socket interfaces include ntohs(), ntohl(), htons(), htonl(), and | |
| s.dup(). Sockets now work correctly on Windows. On Windows, the built-in | |
| extension is called _socket and a wrapper module win/socket.py provides | |
| "makefile()" and "dup()" functionality. On Windows, the select module | |
| works only with socket objects. | |
| - Bugs in bsddb module fixed (e.g. missing default argument values). | |
| - The curses extension now includes <ncurses.h> when available. | |
| - The gdbm module now supports opening databases in "fast" mode by | |
| specifying 'f' as the second character or the mode string. | |
| - new variables sys.prefix and sys.exec_prefix pass corresponding | |
| configuration options / Makefile variables to the Python programmer. | |
| - The ``new'' module now supports creating new user-defined classes as well | |
| as instances thereof. | |
| - The soundex module now sports get_soundex() to get the soundex value for an | |
| arbitrary string (formerly it would only do soundex-based string | |
| comparison) as well as doc strings. | |
| - New object type "cobject" to safely wrap void pointers for passing them | |
| between various extension modules. | |
| - More efficient computation of float**smallint. | |
| - The mysterious bug whereby "x.x" (two occurrences of the same | |
| one-character name) typed from the commandline would sometimes fail | |
| mysteriously. | |
| - The initialization of the readline function can now be invoked by a C | |
| extension through PyOS_ReadlineInit(). | |
| - There's now an externally visible pointer PyImport_FrozenModules which | |
| can be changed by an embedding application. | |
| - The argument parsing functions now support a new format character 'D' to | |
| specify complex numbers. | |
| - Various memory leaks plugged and bugs fixed. | |
| - Improved support for posix threads (now that real implementations are | |
| beginning to apepar). Still no fully functioning semaphores. | |
| - Some various and sundry improvements and new entries in the Tools | |
| directory. | |
| ===================================== | |
| ==> Release 1.3 (13 October 1995) <== | |
| ===================================== | |
| Major change | |
| ============ | |
| Two words: Keyword Arguments. See the first section of Chapter 12 of | |
| the Tutorial. | |
| (The rest of this file is textually the same as the remaining sections | |
| of that chapter.) | |
| Changes to the WWW and internet tools | |
| ===================================== | |
| The "htmllib" module has been rewritten in an incompatible fashion. | |
| The new version is considerably more complete (HTML 2.0 except forms, | |
| but including all ISO-8859-1 entity definitions), and easy to use. | |
| Small changes to "sgmllib" have also been made, to better match the | |
| tokenization of HTML as recognized by other web tools. | |
| A new module "formatter" has been added, for use with the new | |
| "htmllib" module. | |
| The "urllib"and "httplib" modules have been changed somewhat to allow | |
| overriding unknown URL types and to support authentication. They now | |
| use "mimetools.Message" instead of "rfc822.Message" to parse headers. | |
| The "endrequest()" method has been removed from the HTTP class since | |
| it breaks the interaction with some servers. | |
| The "rfc822.Message" class has been changed to allow a flag to be | |
| passed in that says that the file is unseekable. | |
| The "ftplib" module has been fixed to be (hopefully) more robust on | |
| Linux. | |
| Several new operations that are optionally supported by servers have | |
| been added to "nntplib": "xover", "xgtitle", "xpath" and "date". | |
| Other Language Changes | |
| ====================== | |
| The "raise" statement now takes an optional argument which specifies | |
| the traceback to be used when printing the exception's stack trace. | |
| This must be a traceback object, such as found in "sys.exc_traceback". | |
| When omitted or given as "None", the old behavior (to generate a stack | |
| trace entry for the current stack frame) is used. | |
| The tokenizer is now more tolerant of alien whitespace. Control-L in | |
| the leading whitespace of a line resets the column number to zero, | |
| while Control-R just before the end of the line is ignored. | |
| Changes to Built-in Operations | |
| ============================== | |
| For file objects, "f.read(0)" and "f.readline(0)" now return an empty | |
| string rather than reading an unlimited number of bytes. For the | |
| latter, omit the argument altogether or pass a negative value. | |
| A new system variable, "sys.platform", has been added. It specifies | |
| the current platform, e.g. "sunos5" or "linux1". | |
| The built-in functions "input()" and "raw_input()" now use the GNU | |
| readline library when it has been configured (formerly, only | |
| interactive input to the interpreter itself was read using GNU | |
| readline). The GNU readline library provides elaborate line editing | |
| and history. The Python debugger ("pdb") is the first beneficiary of | |
| this change. | |
| Two new built-in functions, "globals()" and "locals()", provide access | |
| to dictionaries containming current global and local variables, | |
| respectively. (These augment rather than replace "vars()", which | |
| returns the current local variables when called without an argument, | |
| and a module's global variables when called with an argument of type | |
| module.) | |
| The built-in function "compile()" now takes a third possible value for | |
| the kind of code to be compiled: specifying "'single'" generates code | |
| for a single interactive statement, which prints the output of | |
| expression statements that evaluate to something else than "None". | |
| Library Changes | |
| =============== | |
| There are new module "ni" and "ihooks" that support importing modules | |
| with hierarchical names such as "A.B.C". This is enabled by writing | |
| "import ni; ni.ni()" at the very top of the main program. These | |
| modules are amply documented in the Python source. | |
| The module "rexec" has been rewritten (incompatibly) to define a class | |
| and to use "ihooks". | |
| The "string.split()" and "string.splitfields()" functions are now the | |
| same function (the presence or absence of the second argument | |
| determines which operation is invoked); similar for "string.join()" | |
| and "string.joinfields()". | |
| The "Tkinter" module and its helper "Dialog" have been revamped to use | |
| keyword arguments. Tk 4.0 is now the standard. A new module | |
| "FileDialog" has been added which implements standard file selection | |
| dialogs. | |
| The optional built-in modules "dbm" and "gdbm" are more coordinated | |
| --- their "open()" functions now take the same values for their "flag" | |
| argument, and the "flag" and "mode" argument have default values (to | |
| open the database for reading only, and to create the database with | |
| mode "0666" minuse the umask, respectively). The memory leaks have | |
| finally been fixed. | |
| A new dbm-like module, "bsddb", has been added, which uses the BSD DB | |
| package's hash method. | |
| A portable (though slow) dbm-clone, implemented in Python, has been | |
| added for systems where none of the above is provided. It is aptly | |
| dubbed "dumbdbm". | |
| The module "anydbm" provides a unified interface to "bsddb", "gdbm", | |
| "dbm", and "dumbdbm", choosing the first one available. | |
| A new extension module, "binascii", provides a variety of operations | |
| for conversion of text-encoded binary data. | |
| There are three new or rewritten companion modules implemented in | |
| Python that can encode and decode the most common such formats: "uu" | |
| (uuencode), "base64" and "binhex". | |
| A module to handle the MIME encoding quoted-printable has also been | |
| added: "quopri". | |
| The parser module (which provides an interface to the Python parser's | |
| abstract syntax trees) has been rewritten (incompatibly) by Fred | |
| Drake. It now lets you change the parse tree and compile the result! | |
| The \code{syslog} module has been upgraded and documented. | |
| Other Changes | |
| ============= | |
| The dynamic module loader recognizes the fact that different filenames | |
| point to the same shared library and loads the library only once, so | |
| you can have a single shared library that defines multiple modules. | |
| (SunOS / SVR4 style shared libraries only.) | |
| Jim Fulton's ``abstract object interface'' has been incorporated into | |
| the run-time API. For more detailes, read the files | |
| "Include/abstract.h" and "Objects/abstract.c". | |
| The Macintosh version is much more robust now. | |
| Numerous things I have forgotten or that are so obscure no-one will | |
| notice them anyway :-) | |
| =================================== | |
| ==> Release 1.2 (13 April 1995) <== | |
| =================================== | |
| - Changes to Misc/python-mode.el: | |
| - Wrapping and indentation within triple quote strings should work | |
| properly now. | |
| - `Standard' bug reporting mechanism (use C-c C-b) | |
| - py-mark-block was moved to C-c C-m | |
| - C-c C-v shows you the python-mode version | |
| - a basic python-font-lock-keywords has been added for Emacs 19 | |
| font-lock colorizations. | |
| - proper interaction with pending-del and del-sel modes. | |
| - New py-electric-colon (:) command for improved outdenting. Also | |
| py-indent-line (TAB) should handle outdented lines better. | |
| - New commands py-outdent-left (C-c C-l) and py-indent-right (C-c C-r) | |
| - The Library Reference has been restructured, and many new and | |
| existing modules are now documented, in particular the debugger and | |
| the profiler, as well as the persistency and the WWW/internet support | |
| modules. | |
| - All known bugs have been fixed. For example the pow(2,2,3L) bug on | |
| Linux has been fixed. Also the re-entrancy problems with __del__ have | |
| been fixed. | |
| - All known memory leaks have been fixed. | |
| - Phase 2 of the Great Renaming has been executed. The header files | |
| now use the new names (PyObject instead of object, etc.). The linker | |
| also sees the new names. Most source files still use the old names, | |
| by virtue of the rename2.h header file. If you include Python.h, you | |
| only see the new names. Dynamically linked modules have to be | |
| recompiled. (Phase 3, fixing the rest of the sources, will be | |
| executed gradually with the release later versions.) | |
| - The hooks for implementing "safe-python" (better called "restricted | |
| execution") are in place. Specifically, the import statement is | |
| implemented by calling the built-in function __import__, and the | |
| built-in names used in a particular scope are taken from the | |
| dictionary __builtins__ in that scope's global dictionary. See also | |
| the new (unsupported, undocumented) module rexec.py. | |
| - The import statement now supports the syntax "import a.b.c" and | |
| "from a.b.c import name". No officially supported implementation | |
| exists, but one can be prototyped by replacing the built-in __import__ | |
| function. A proposal by Ken Manheimer is provided as newimp.py. | |
| - All machinery used by the import statement (or the built-in | |
| __import__ function) is now exposed through the new built-in module | |
| "imp" (see the library reference manual). All dynamic loading | |
| machinery is moved to the new file importdl.c. | |
| - Persistent storage is supported through the use of the modules | |
| "pickle" and "shelve" (implemented in Python). There's also a "copy" | |
| module implementing deepcopy and normal (shallow) copy operations. | |
| See the library reference manual. | |
| - Documentation strings for many object types are accessible through | |
| the __doc__ attribute. Modules, classes and functions support special | |
| syntax to initialize the __doc__ attribute: if the first statement | |
| consists of just a string literal, that string literal becomes the | |
| value of the __doc__ attribute. The default __doc__ attribute is | |
| None. Documentation strings are also supported for built-in | |
| functions, types and modules; however this feature hasn't been widely | |
| used yet. See the 'new' module for an example. (Basically, the type | |
| object's tp_doc field contains the doc string for the type, and the | |
| 4th member of the methodlist structure contains the doc string for the | |
| method.) | |
| - The __coerce__ and __cmp__ methods for user-defined classes once | |
| again work as expected. As an example, there's a new standard class | |
| Complex in the library. | |
| - The functions posix.popen() and posix.fdopen() now have an optional | |
| third argument to specify the buffer size, and default their second | |
| (mode) argument to 'r' -- in analogy to the built-in open() function. | |
| The same applies to posixfile.open() and the socket method makefile(). | |
| - The thread.exit_thread() function now raises SystemExit so that | |
| 'finally' clauses are honored and a memory leak is plugged. | |
| - Improved X11 and Motif support, by Sjoerd Mullender. This extension | |
| is being maintained and distributed separately. | |
| - Improved support for the Apple Macintosh, in part by Jack Jansen, | |
| e.g. interfaces to (a few) resource manager functions, get/set file | |
| type and creator, gestalt, sound manager, speech manager, MacTCP, comm | |
| toolbox, and the think C console library. This is being maintained | |
| and distributed separately. | |
| - Improved version for Windows NT, by Mark Hammond. This is being | |
| maintained and distributed separately. | |
| - Used autoconf 2.0 to generate the configure script. Adapted | |
| configure.in to use the new features in autoconf 2.0. | |
| - It now builds on the NeXT without intervention, even on the 3.3 | |
| Sparc pre-release. | |
| - Characters passed to isspace() and friends are masked to nonnegative | |
| values. | |
| - Correctly compute pow(-3.0, 3). | |
| - Fix portability problems with getopt (configure now checks for a | |
| non-GNU getopt). | |
| - Don't add frozenmain.o to libPython.a. | |
| - Exceptions can now be classes. ALl built-in exceptions are still | |
| string objects, but this will change in the future. | |
| - The socket module exports a long list of socket related symbols. | |
| (More built-in modules will export their symbolic constants instead of | |
| relying on a separately generated Python module.) | |
| - When a module object is deleted, it clears out its own dictionary. | |
| This fixes a circularity in the references between functions and | |
| their global dictionary. | |
| - Changed the error handling by [new]getargs() e.g. for "O&". | |
| - Dynamic loading of modules using shared libraries is supported for | |
| several new platforms. | |
| - Support "O&", "[...]" and "{...}" in mkvalue(). | |
| - Extension to findmethod(): findmethodinchain() (where a chain is a | |
| linked list of methodlist arrays). The calling interface for | |
| findmethod() has changed: it now gets a pointer to the (static!) | |
| methodlist structure rather than just to the function name -- this | |
| saves copying flags etc. into the (short-lived) method object. | |
| - The callable() function is now public. | |
| - Object types can define a few new operations by setting function | |
| pointers in the type object structure: tp_call defines how an object | |
| is called, and tp_str defines how an object's str() is computed. | |
| =================================== | |
| ==> Release 1.1.1 (10 Nov 1994) <== | |
| =================================== | |
| This is a pure bugfix release again. See the ChangeLog file for details. | |
| One exception: a few new features were added to tkinter. | |
| ================================= | |
| ==> Release 1.1 (11 Oct 1994) <== | |
| ================================= | |
| This release adds several new features, improved configuration and | |
| portability, and fixes more bugs than I can list here (including some | |
| memory leaks). | |
| The source compiles and runs out of the box on more platforms than | |
| ever -- including Windows NT. Makefiles or projects for a variety of | |
| non-UNIX platforms are provided. | |
| APOLOGY: some new features are badly documented or not at all. I had | |
| the choice -- postpone the new release indefinitely, or release it | |
| now, with working code but some undocumented areas. The problem with | |
| postponing the release is that people continue to suffer from existing | |
| bugs, and send me patches based on the previous release -- which I | |
| can't apply directly because my own source has changed. Also, some | |
| new modules (like signal) have been ready for release for quite some | |
| time, and people are anxiously waiting for them. In the case of | |
| signal, the interface is simple enough to figure out without | |
| documentation (if you're anxious enough :-). In this case it was not | |
| simple to release the module on its own, since it relies on many small | |
| patches elsewhere in the source. | |
| For most new Python modules, the source code contains comments that | |
| explain how to use them. Documentation for the Tk interface, written | |
| by Matt Conway, is available as tkinter-doc.tar.gz from the Python | |
| home and mirror ftp sites (see Misc/FAQ for ftp addresses). For the | |
| new operator overloading facilities, have a look at Demo/classes: | |
| Complex.py and Rat.py show how to implement a numeric type without and | |
| with __coerce__ method. Also have a look at the end of the Tutorial | |
| document (Doc/tut.tex). If you're still confused: use the newsgroup | |
| or mailing list. | |
| New language features: | |
| - More flexible operator overloading for user-defined classes | |
| (INCOMPATIBLE WITH PREVIOUS VERSIONS!) See end of tutorial. | |
| - Classes can define methods named __getattr__, __setattr__ and | |
| __delattr__ to trap attribute accesses. See end of tutorial. | |
| - Classes can define method __call__ so instances can be called | |
| directly. See end of tutorial. | |
| New support facilities: | |
| - The Makefiles (for the base interpreter as well as for extensions) | |
| now support creating dynamically loadable modules if the platform | |
| supports shared libraries. | |
| - Passing the interpreter a .pyc file as script argument will execute | |
| the code in that file. (On the Mac such files can be double-clicked!) | |
| - New Freeze script, to create independently distributable "binaries" | |
| of Python programs -- look in Demo/freeze | |
| - Improved h2py script (in Demo/scripts) follows #includes and | |
| supports macros with one argument | |
| - New module compileall generates .pyc files for all modules in a | |
| directory (tree) without also executing them | |
| - Threads should work on more platforms | |
| New built-in modules: | |
| - tkinter (support for Tcl's Tk widget set) is now part of the base | |
| distribution | |
| - signal allows catching or ignoring UNIX signals (unfortunately still | |
| undocumented -- any taker?) | |
| - termios provides portable access to POSIX tty settings | |
| - curses provides an interface to the System V curses library | |
| - syslog provides an interface to the (BSD?) syslog daemon | |
| - 'new' provides interfaces to create new built-in object types | |
| (e.g. modules and functions) | |
| - sybase provides an interface to SYBASE database | |
| New/obsolete built-in methods: | |
| - callable(x) tests whether x can be called | |
| - sockets now have a setblocking() method | |
| - sockets no longer have an allowbroadcast() method | |
| - socket methods send() and sendto() return byte count | |
| New standard library modules: | |
| - types.py defines standard names for built-in types, e.g. StringType | |
| - urlparse.py parses URLs according to the latest internet draft | |
| - uu.py does uuencode/uudecode (not the fastest in the world, but | |
| quicker than installing uuencode on a non-UNIX machine :-) | |
| - New, faster and more powerful profile module.py | |
| - mhlib.py provides interface to MH folders and messages | |
| New facilities for extension writers (unfortunately still | |
| undocumented): | |
| - newgetargs() supports optional arguments and improved error messages | |
| - O!, O& O? formats for getargs allow more versatile type checking of | |
| non-standard types | |
| - can register pending asynchronous callback, to be called the next | |
| time the Python VM begins a new instruction (Py_AddPendingCall) | |
| - can register cleanup routines to be called when Python exits | |
| (Py_AtExit) | |
| - makesetup script understands C++ files in Setup file (use file.C | |
| or file.cc) | |
| - Make variable OPT is passed on to sub-Makefiles | |
| - An init<module>() routine may signal an error by not entering | |
| the module in the module table and raising an exception instead | |
| - For long module names, instead of foobarbletchmodule.c you can | |
| use foobarbletch.c | |
| - getintvalue() and getfloatvalue() try to convert any object | |
| instead of requiring an "intobject" or "floatobject" | |
| - All the [new]getargs() formats that retrieve an integer value | |
| will now also work if a float is passed | |
| - C function listtuple() converts list to tuple, fast | |
| - You should now call sigcheck() instead of intrcheck(); | |
| sigcheck() also sets an exception when it returns nonzero | |
| ==================================== | |
| ==> Release 1.0.3 (14 July 1994) <== | |
| ==================================== | |
| This release consists entirely of bug fixes to the C sources; see the | |
| head of ../ChangeLog for a complete list. Most important bugs fixed: | |
| - Sometimes the format operator (string%expr) would drop the last | |
| character of the format string | |
| - Tokenizer looped when last line did not end in \n | |
| - Bug when triple-quoted string ended in quote plus newline | |
| - Typo in socketmodule (listen) (== instead of =) | |
| - typing vars() at the >>> prompt would cause recursive output | |
| ================================== | |
| ==> Release 1.0.2 (4 May 1994) <== | |
| ================================== | |
| Overview of the most visible changes. Bug fixes are not listed. See | |
| also ChangeLog. | |
| Tokens | |
| ------ | |
| * String literals follow Standard C rules: they may be continued on | |
| the next line using a backslash; adjacent literals are concatenated | |
| at compile time. | |
| * A new kind of string literals, surrounded by triple quotes (""" or | |
| '''), can be continued on the next line without a backslash. | |
| Syntax | |
| ------ | |
| * Function arguments may have a default value, e.g. def f(a, b=1); | |
| defaults are evaluated at function definition time. This also applies | |
| to lambda. | |
| * The try-except statement has an optional else clause, which is | |
| executed when no exception occurs in the try clause. | |
| Interpreter | |
| ----------- | |
| * The result of a statement-level expression is no longer printed, | |
| except_ for expressions entered interactively. Consequently, the -k | |
| command line option is gone. | |
| * The result of the last printed interactive expression is assigned to | |
| the variable '_'. | |
| * Access to implicit global variables has been speeded up by removing | |
| an always-failing dictionary lookup in the dictionary of local | |
| variables (mod suggested by Steve Makewski and Tim Peters). | |
| * There is a new command line option, -u, to force stdout and stderr | |
| to be unbuffered. | |
| * Incorporated Steve Majewski's mods to import.c for dynamic loading | |
| under AIX. | |
| * Fewer chances of dumping core when trying to reload or re-import | |
| static built-in, dynamically loaded built-in, or frozen modules. | |
| * Loops over sequences now don't ask for the sequence's length when | |
| they start, but try to access items 0, 1, 2, and so on until they hit | |
| an IndexError. This makes it possible to create classes that generate | |
| infinite or indefinite sequences a la Steve Majewski. This affects | |
| for loops, the (not) in operator, and the built-in functions filter(), | |
| map(), max(), min(), reduce(). | |
| Changed Built-in operations | |
| --------------------------- | |
| * The '%' operator on strings (printf-style formatting) supports a new | |
| feature (adapted from a patch by Donald Beaudry) to allow | |
| '%(<key>)<format>' % {...} to take values from a dictionary by name | |
| instead of from a tuple by position (see also the new function | |
| vars()). | |
| * The '%s' formatting operator is changed to accept any type and | |
| convert it to a string using str(). | |
| * Dictionaries with more than 20,000 entries can now be created | |
| (thanks to Steve Kirsch). | |
| New Built-in Functions | |
| ---------------------- | |
| * vars() returns a dictionary containing the local variables; vars(m) | |
| returns a dictionary containing the variables of module m. Note: | |
| dir(x) is now equivalent to vars(x).keys(). | |
| Changed Built-in Functions | |
| -------------------------- | |
| * open() has an optional third argument to specify the buffer size: 0 | |
| for unbuffered, 1 for line buffered, >1 for explicit buffer size, <0 | |
| for default. | |
| * open()'s second argument is now optional; it defaults to "r". | |
| * apply() now checks that its second argument is indeed a tuple. | |
| New Built-in Modules | |
| -------------------- | |
| Changed Built-in Modules | |
| ------------------------ | |
| The thread module no longer supports exit_prog(). | |
| New Python Modules | |
| ------------------ | |
| * Module addpack contains a standard interface to modify sys.path to | |
| find optional packages (groups of related modules). | |
| * Module urllib contains a number of functions to access | |
| World-Wide-Web files specified by their URL. | |
| * Module httplib implements the client side of the HTTP protocol used | |
| by World-Wide-Web servers. | |
| * Module gopherlib implements the client side of the Gopher protocol. | |
| * Module mailbox (by Jack Jansen) contains a parser for UNIX and MMDF | |
| style mailbox files. | |
| * Module random contains various random distributions, e.g. gauss(). | |
| * Module lockfile locks and unlocks open files using fcntl (inspired | |
| by a similar module by Andy Bensky). | |
| * Module ntpath (by Jaap Vermeulen) implements path operations for | |
| Windows/NT. | |
| * Module test_thread (in Lib/test) contains a small test set for the | |
| thread module. | |
| Changed Python Modules | |
| ---------------------- | |
| * The string module's expandvars() function is now documented and is | |
| implemented in Python (using regular expressions) instead of forking | |
| off a shell process. | |
| * Module rfc822 now supports accessing the header fields using the | |
| mapping/dictionary interface, e.g. h['subject']. | |
| * Module pdb now makes it possible to set a break on a function | |
| (syntax: break <expression>, where <expression> yields a function | |
| object). | |
| Changed Demos | |
| ------------- | |
| * The Demo/scripts/freeze.py script is working again (thanks to Jaap | |
| Vermeulen). | |
| New Demos | |
| --------- | |
| * Demo/threads/Generator.py is a proposed interface for restartable | |
| functions a la Tim Peters. | |
| * Demo/scripts/newslist.py, by Quentin Stafford-Fraser, generates a | |
| directory full of HTML pages which between them contain links to all | |
| the newsgroups available on your server. | |
| * Demo/dns contains a DNS (Domain Name Server) client. | |
| * Demo/lutz contains miscellaneous demos by Mark Lutz (e.g. psh.py, a | |
| nice enhanced Python shell!!!). | |
| * Demo/turing contains a Turing machine by Amrit Prem. | |
| Documentation | |
| ------------- | |
| * Documented new language features mentioned above (but not all new | |
| modules). | |
| * Added a chapter to the Tutorial describing recent additions to | |
| Python. | |
| * Clarified some sentences in the reference manual, | |
| e.g. break/continue, local/global scope, slice assignment. | |
| Source Structure | |
| ---------------- | |
| * Moved Include/tokenizer.h to Parser/tokenizer.h. | |
| * Added Python/getopt.c for systems that don't have it. | |
| Emacs mode | |
| ---------- | |
| * Indentation of continuated lines is done more intelligently; | |
| consequently the variable py-continuation-offset is gone. | |
| ======================================== | |
| ==> Release 1.0.1 (15 February 1994) <== | |
| ======================================== | |
| * Many portability fixes should make it painless to build Python on | |
| several new platforms, e.g. NeXT, SEQUENT, WATCOM, DOS, and Windows. | |
| * Fixed test for <stdarg.h> -- this broke on some platforms. | |
| * Fixed test for shared library dynalic loading -- this broke on SunOS | |
| 4.x using the GNU loader. | |
| * Changed order and number of SVR4 networking libraries (it is now | |
| -lsocket -linet -lnsl, if these libraries exist). | |
| * Installing the build intermediate stages with "make libainstall" now | |
| also installs config.c.in, Setup and makesetup, which are used by the | |
| new Extensions mechanism. | |
| * Improved README file contains more hints and new troubleshooting | |
| section. | |
| * The built-in module strop now defines fast versions of three more | |
| functions of the standard string module: atoi(), atol() and atof(). | |
| The strop versions of atoi() and atol() support an optional second | |
| argument to specify the base (default 10). NOTE: you don't have to | |
| explicitly import strop to use the faster versions -- the string | |
| module contains code to let versions from stop override the default | |
| versions. | |
| * There is now a working Lib/dospath.py for those who use Python under | |
| DOS (or Windows). Thanks, Jaap! | |
| * There is now a working Modules/dosmodule.c for DOS (or Windows) | |
| system calls. | |
| * Lib.os.py has been reorganized (making it ready for more operating | |
| systems). | |
| * Lib/ospath.py is now obsolete (use os.path instead). | |
| * Many fixes to the tutorial to make it match Python 1.0. Thanks, | |
| Tim! | |
| * Fixed Doc/Makefile, Doc/README and various scripts there. | |
| * Added missing description of fdopen to Doc/libposix.tex. | |
| * Made cleanup() global, for the benefit of embedded applications. | |
| * Added parsing of addresses and dates to Lib/rfc822.py. | |
| * Small fixes to Lib/aifc.py, Lib/sunau.py, Lib/tzparse.py to make | |
| them usable at all. | |
| * New module Lib/wave.py reads RIFF (*.wav) audio files. | |
| * Module Lib/filewin.py moved to Lib/stdwin/filewin.py where it | |
| belongs. | |
| * New options and comments for Modules/makesetup (used by new | |
| Extension mechanism). | |
| * Misc/HYPE contains text of announcement of 1.0.0 in comp.lang.misc | |
| and elsewhere. | |
| * Fixed coredump in filter(None, 'abcdefg'). | |
| ======================================= | |
| ==> Release 1.0.0 (26 January 1994) <== | |
| ======================================= | |
| As is traditional, so many things have changed that I can't pretend to | |
| be complete in these release notes, but I'll try anyway :-) | |
| Note that the very last section is labeled "remaining bugs". | |
| Source organization and build process | |
| ------------------------------------- | |
| * The sources have finally been split: instead of a single src | |
| subdirectory there are now separate directories Include, Parser, | |
| Grammar, Objects, Python and Modules. Other directories also start | |
| with a capital letter: Misc, Doc, Lib, Demo. | |
| * A few extensions (notably Amoeba and X support) have been moved to a | |
| separate subtree Extensions, which is no longer in the core | |
| distribution, but separately ftp'able as extensions.tar.Z. (The | |
| distribution contains a placeholder Ext-dummy with a description of | |
| the Extensions subtree as well as the most recent versions of the | |
| scripts used there.) | |
| * A few large specialized demos (SGI video and www) have been | |
| moved to a separate subdirectory Demo2, which is no longer in the core | |
| distribution, but separately ftp'able as demo2.tar.Z. | |
| * Parts of the standard library have been moved to subdirectories: | |
| there are now standard subdirectories stdwin, test, sgi and sun4. | |
| * The configuration process has radically changed: I now use GNU | |
| autoconf. This makes it much easier to build on new Unix flavors, as | |
| well as fully supporting VPATH (if your Make has it). The scripts | |
| Configure.py and Addmodule.sh are no longer needed. Many source files | |
| have been adapted in order to work with the symbols that the configure | |
| script generated by autoconf defines (or not); the resulting source is | |
| much more portable to different C compilers and operating systems, | |
| even non Unix systems (a Mac port was done in an afternoon). See the | |
| toplevel README file for a description of the new build process. | |
| * GNU readline (a slightly newer version) is now a subdirectory of the | |
| Python toplevel. It is still not automatically configured (being | |
| totally autoconf-unaware :-). One problem has been solved: typing | |
| Control-C to a readline prompt will now work. The distribution no | |
| longer contains a "super-level" directory (above the python toplevel | |
| directory), and dl, dl-dld and GNU dld are no longer part of the | |
| Python distribution (you can still ftp them from | |
| ftp.cwi.nl:/pub/dynload). | |
| * The DOS functions have been taken out of posixmodule.c and moved | |
| into a separate file dosmodule.c. | |
| * There's now a separate file version.c which contains nothing but | |
| the version number. | |
| * The actual main program is now contained in config.c (unless NO_MAIN | |
| is defined); pythonmain.c now contains a function realmain() which is | |
| called from config.c's main(). | |
| * All files needed to use the built-in module md5 are now contained in | |
| the distribution. The module has been cleaned up considerably. | |
| Documentation | |
| ------------- | |
| * The library manual has been split into many more small latex files, | |
| so it is easier to edit Doc/lib.tex file to create a custom library | |
| manual, describing only those modules supported on your system. (This | |
| is not automated though.) | |
| * A fourth manual has been added, titled "Extending and Embedding the | |
| Python Interpreter" (Doc/ext.tex), which collects information about | |
| the interpreter which was previously spread over several files in the | |
| misc subdirectory. | |
| * The entire documentation is now also available on-line for those who | |
| have a WWW browser (e.g. NCSA Mosaic). Point your browser to the URL | |
| "http://www.cwi.nl/~guido/Python.html". | |
| Syntax | |
| ------ | |
| * Strings may now be enclosed in double quotes as well as in single | |
| quotes. There is no difference in interpretation. The repr() of | |
| string objects will use double quotes if the string contains a single | |
| quote and no double quotes. Thanks to Amrit Prem for these changes! | |
| * There is a new keyword 'exec'. This replaces the exec() built-in | |
| function. If a function contains an exec statement, local variable | |
| optimization is not performed for that particular function, thus | |
| making assignment to local variables in exec statements less | |
| confusing. (As a consequence, os.exec and python.exec have been | |
| renamed to execv.) | |
| * There is a new keyword 'lambda'. An expression of the form | |
| lambda <parameters> : <expression> | |
| yields an anonymous function. This is really only syntactic sugar; | |
| you can just as well define a local function using | |
| def some_temporary_name(<parameters>): return <expression> | |
| Lambda expressions are particularly useful in combination with map(), | |
| filter() and reduce(), described below. Thanks to Amrit Prem for | |
| submitting this code (as well as map(), filter(), reduce() and | |
| xrange())! | |
| Built-in functions | |
| ------------------ | |
| * The built-in module containing the built-in functions is called | |
| __builtin__ instead of builtin. | |
| * New built-in functions map(), filter() and reduce() perform standard | |
| functional programming operations (though not lazily): | |
| - map(f, seq) returns a new sequence whose items are the items from | |
| seq with f() applied to them. | |
| - filter(f, seq) returns a subsequence of seq consisting of those | |
| items for which f() is true. | |
| - reduce(f, seq, initial) returns a value computed as follows: | |
| acc = initial | |
| for item in seq: acc = f(acc, item) | |
| return acc | |
| * New function xrange() creates a "range object". Its arguments are | |
| the same as those of range(), and when used in a for loop a range | |
| objects also behaves identical. The advantage of xrange() over | |
| range() is that its representation (if the range contains many | |
| elements) is much more compact than that of range(). The disadvantage | |
| is that the result cannot be used to initialize a list object or for | |
| the "Python idiom" [RED, GREEN, BLUE] = range(3). On some modern | |
| architectures, benchmarks have shown that "for i in range(...): ..." | |
| actually executes *faster* than "for i in xrange(...): ...", but on | |
| memory starved machines like PCs running DOS range(100000) may be just | |
| too big to be represented at all... | |
| * Built-in function exec() has been replaced by the exec statement -- | |
| see above. | |
| The interpreter | |
| --------------- | |
| * Syntax errors are now not printed to stderr by the parser, but | |
| rather the offending line and other relevant information are packed up | |
| in the SyntaxError exception argument. When the main loop catches a | |
| SyntaxError exception it will print the error in the same format as | |
| previously, but at the proper position in the stack traceback. | |
| * You can now set a maximum to the number of traceback entries | |
| printed by assigning to sys.tracebacklimit. The default is 1000. | |
| * The version number in .pyc files has changed yet again. | |
| * It is now possible to have a .pyc file without a corresponding .py | |
| file. (Warning: this may break existing installations if you have an | |
| old .pyc file lingering around somewhere on your module search path | |
| without a corresponding .py file, when there is a .py file for a | |
| module of the same name further down the path -- the new interpreter | |
| will find the first .pyc file and complain about it, while the old | |
| interpreter would ignore it and use the .py file further down.) | |
| * The list sys.builtin_module_names is now sorted and also contains | |
| the names of a few hardwired built-in modules (sys, __main__ and | |
| __builtin__). | |
| * A module can now find its own name by accessing the global variable | |
| __name__. Assigning to this variable essentially renames the module | |
| (it should also be stored under a different key in sys.modules). | |
| A neat hack follows from this: a module that wants to execute a main | |
| program when called as a script no longer needs to compare | |
| sys.argv[0]; it can simply do "if __name__ == '__main__': main()". | |
| * When an object is printed by the print statement, its implementation | |
| of str() is used. This means that classes can define __str__(self) to | |
| direct how their instances are printed. This is different from | |
| __repr__(self), which should define an unambiguous string | |
| representation of the instance. (If __str__() is not defined, it | |
| defaults to __repr__().) | |
| * Functions and code objects can now be compared meaningfully. | |
| * On systems supporting SunOS or SVR4 style shared libraries, dynamic | |
| loading of modules using shared libraries is automatically configured. | |
| Thanks to Bill Jansen and Denis Severson for contributing this change! | |
| Built-in objects | |
| ---------------- | |
| * File objects have acquired a new method writelines() which is the | |
| reverse of readlines(). (It does not actually write lines, just a | |
| list of strings, but the symmetry makes the choice of name OK.) | |
| Built-in modules | |
| ---------------- | |
| * Socket objects no longer support the avail() method. Use the select | |
| module instead, or use this function to replace it: | |
| def avail(f): | |
| import select | |
| return f in select.select([f], [], [], 0)[0] | |
| * Initialization of stdwin is done differently. It actually modifies | |
| sys.argv (taking out the options the X version of stdwin recognizes) | |
| the first time it is imported. | |
| * A new built-in module parser provides a rudimentary interface to the | |
| python parser. Corresponding standard library modules token and symbol | |
| defines the numeric values of tokens and non-terminal symbols. | |
| * The posix module has acquired new functions setuid(), setgid(), | |
| execve(), and exec() has been renamed to execv(). | |
| * The array module is extended with 8-byte object swaps, the 'i' | |
| format character, and a reverse() method. The read() and write() | |
| methods are renamed to fromfile() and tofile(). | |
| * The rotor module has freed of portability bugs. This introduces a | |
| backward compatibility problem: strings encoded with the old rotor | |
| module can't be decoded by the new version. | |
| * For select.select(), a timeout (4th) argument of None means the same | |
| as leaving the timeout argument out. | |
| * Module strop (and hence standard library module string) has acquired | |
| a new function: rindex(). Thanks to Amrit Prem! | |
| * Module regex defines a new function symcomp() which uses an extended | |
| regular expression syntax: parenthesized subexpressions may be labeled | |
| using the form "\(<labelname>...\)", and the group() method can return | |
| sub-expressions by name. Thanks to Tracy Tims for these changes! | |
| * Multiple threads are now supported on Solaris 2. Thanks to Sjoerd | |
| Mullender! | |
| Standard library modules | |
| ------------------------ | |
| * The library is now split in several subdirectories: all stuff using | |
| stdwin is in Lib/stdwin, all SGI specific (or SGI Indigo or GL) stuff | |
| is in Lib/sgi, all Sun Sparc specific stuff is in Lib/sun4, and all | |
| test modules are in Lib/test. The default module search path will | |
| include all relevant subdirectories by default. | |
| * Module os now knows about trying to import dos. It defines | |
| functions execl(), execle(), execlp() and execvp(). | |
| * New module dospath (should be attacked by a DOS hacker though). | |
| * All modules defining classes now define __init__() constructors | |
| instead of init() methods. THIS IS AN INCOMPATIBLE CHANGE! | |
| * Some minor changes and bugfixes module ftplib (mostly Steve | |
| Majewski's suggestions); the debug() method is renamed to | |
| set_debuglevel(). | |
| * Some new test modules (not run automatically by testall though): | |
| test_audioop, test_md5, test_rgbimg, test_select. | |
| * Module string now defines rindex() and rfind() in analogy of index() | |
| and find(). It also defines atof() and atol() (and corresponding | |
| exceptions) in analogy to atoi(). | |
| * Added help() functions to modules profile and pdb. | |
| * The wdb debugger (now in Lib/stdwin) now shows class or instance | |
| variables on a double click. Thanks to Sjoerd Mullender! | |
| * The (undocumented) module lambda has gone -- you couldn't import it | |
| any more, and it was basically more a demo than a library module... | |
| Multimedia extensions | |
| --------------------- | |
| * The optional built-in modules audioop and imageop are now standard | |
| parts of the interpreter. Thanks to Sjoerd Mullender and Jack Jansen | |
| for contributing this code! | |
| * There's a new operation in audioop: minmax(). | |
| * There's a new built-in module called rgbimg which supports portable | |
| efficient reading of SGI RCG image files. Thanks also to Paul | |
| Haeberli for the original code! (Who will contribute a GIF reader?) | |
| * The module aifc is gone -- you should now always use aifc, which has | |
| received a facelift. | |
| * There's a new module sunau., for reading Sun (and NeXT) audio files. | |
| * There's a new module audiodev which provides a uniform interface to | |
| (SGI Indigo and Sun Sparc) audio hardware. | |
| * There's a new module sndhdr which recognizes various sound files by | |
| looking in their header and checking for various magic words. | |
| Optimizations | |
| ------------- | |
| * Most optimizations below can be configured by compile-time flags. | |
| Thanks to Sjoerd Mullender for submitting these optimizations! | |
| * Small integers (default -1..99) are shared -- i.e. if two different | |
| functions compute the same value it is possible (but not | |
| guaranteed!!!) that they return the same *object*. Python programs | |
| can detect this but should *never* rely on it. | |
| * Empty tuples (which all compare equal) are shared in the same | |
| manner. | |
| * Tuples of size up to 20 (default) are put in separate free lists | |
| when deallocated. | |
| * There is a compile-time option to cache a string's hash function, | |
| but this appeared to have a negligeable effect, and as it costs 4 | |
| bytes per string it is disabled by default. | |
| Embedding Python | |
| ---------------- | |
| * The initialization interface has been simplified somewhat. You now | |
| only call "initall()" to initialize the interpreter. | |
| * The previously announced renaming of externally visible identifiers | |
| has not been carried out. It will happen in a later release. Sorry. | |
| Miscellaneous bugs that have been fixed | |
| --------------------------------------- | |
| * All known portability bugs. | |
| * Version 0.9.9 dumped core in <listobject>.sort() which has been | |
| fixed. Thanks to Jaap Vermeulen for fixing this and posting the fix | |
| on the mailing list while I was away! | |
| * Core dump on a format string ending in '%', e.g. in the expression | |
| '%' % None. | |
| * The array module yielded a bogus result for concatenation (a+b would | |
| yield a+a). | |
| * Some serious memory leaks in strop.split() and strop.splitfields(). | |
| * Several problems with the nis module. | |
| * Subtle problem when copying a class method from another class | |
| through assignment (the method could not be called). | |
| Remaining bugs | |
| -------------- | |
| * One problem with 64-bit machines remains -- since .pyc files are | |
| portable and use only 4 bytes to represent an integer object, 64-bit | |
| integer literals are silently truncated when written into a .pyc file. | |
| Work-around: use eval('123456789101112'). | |
| * The freeze script doesn't work any more. A new and more portable | |
| one can probably be cooked up using tricks from Extensions/mkext.py. | |
| * The dos support hasn't been tested yet. (Really Soon Now we should | |
| have a PC with a working C compiler!) | |
| =================================== | |
| ==> Release 0.9.9 (29 Jul 1993) <== | |
| =================================== | |
| I *believe* these are the main user-visible changes in this release, | |
| but there may be others. SGI users may scan the {src,lib}/ChangeLog | |
| files for improvements of some SGI specific modules, e.g. aifc and | |
| cl. Developers of extension modules should also read src/ChangeLog. | |
| Naming of C symbols used by the Python interpreter | |
| -------------------------------------------------- | |
| * This is the last release using the current naming conventions. New | |
| naming conventions are explained in the file misc/NAMING. | |
| Summarizing, all externally visible symbols get (at least) a "Py" | |
| prefix, and most functions are renamed to the standard form | |
| PyModule_FunctionName. | |
| * Writers of extensions are urged to start using the new naming | |
| conventions. The next release will use the new naming conventions | |
| throughout (it will also have a different source directory | |
| structure). | |
| * As a result of the preliminary work for the great renaming, many | |
| functions that were accidentally global have been made static. | |
| BETA X11 support | |
| ---------------- | |
| * There are now modules interfacing to the X11 Toolkit Intrinsics, the | |
| Athena widgets, and the Motif 1.1 widget set. These are not yet | |
| documented except through the examples and README file in the demo/x11 | |
| directory. It is expected that this interface will be replaced by a | |
| more powerful and correct one in the future, which may or may not be | |
| backward compatible. In other words, this part of the code is at most | |
| BETA level software! (Note: the rest of Python is rock solid as ever!) | |
| * I understand that the above may be a bit of a disappointment, | |
| however my current schedule does not allow me to change this situation | |
| before putting the release out of the door. By releasing it | |
| undocumented and buggy, at least some of the (working!) demo programs, | |
| like itr (my Internet Talk Radio browser) become available to a larger | |
| audience. | |
| * There are also modules interfacing to SGI's "Glx" widget (a GL | |
| window wrapped in a widget) and to NCSA's "HTML" widget (which can | |
| format HyperText Markup Language, the document format used by the | |
| World Wide Web). | |
| * I've experienced some problems when building the X11 support. In | |
| particular, the Xm and Xaw widget sets don't go together, and it | |
| appears that using X11R5 is better than using X11R4. Also the threads | |
| module and its link time options may spoil things. My own strategy is | |
| to build two Python binaries: one for use with X11 and one without | |
| it, which can contain a richer set of built-in modules. Don't even | |
| *think* of loading the X11 modules dynamically... | |
| Environmental changes | |
| --------------------- | |
| * Compiled files (*.pyc files) created by this Python version are | |
| incompatible with those created by the previous version. Both | |
| versions detect this and silently create a correct version, but it | |
| means that it is not a good idea to use the same library directory for | |
| an old and a new interpreter, since they will start to "fight" over | |
| the *.pyc files... | |
| * When a stack trace is printed, the exception is printed last instead | |
| of first. This means that if the beginning of the stack trace | |
| scrolled out of your window you can still see what exception caused | |
| it. | |
| * Sometimes interrupting a Python operation does not work because it | |
| hangs in a blocking system call. You can now kill the interpreter by | |
| interrupting it three times. The second time you interrupt it, a | |
| message will be printed telling you that the third interrupt will kill | |
| the interpreter. The "sys.exitfunc" feature still makes limited | |
| clean-up possible in this case. | |
| Changes to the command line interface | |
| ------------------------------------- | |
| * The python usage message is now much more informative. | |
| * New option -i enters interactive mode after executing a script -- | |
| useful for debugging. | |
| * New option -k raises an exception when an expression statement | |
| yields a value other than None. | |
| * For each option there is now also a corresponding environment | |
| variable. | |
| Using Python as an embedded language | |
| ------------------------------------ | |
| * The distribution now contains (some) documentation on the use of | |
| Python as an "embedded language" in other applications, as well as a | |
| simple example. See the file misc/EMBEDDING and the directory embed/. | |
| Speed improvements | |
| ------------------ | |
| * Function local variables are now generally stored in an array and | |
| accessed using an integer indexing operation, instead of through a | |
| dictionary lookup. (This compensates the somewhat slower dictionary | |
| lookup caused by the generalization of the dictionary module.) | |
| Changes to the syntax | |
| --------------------- | |
| * Continuation lines can now *sometimes* be written without a | |
| backslash: if the continuation is contained within nesting (), [] or | |
| {} brackets the \ may be omitted. There's a much improved | |
| python-mode.el in the misc directory which knows about this as well. | |
| * You can no longer use an empty set of parentheses to define a class | |
| without base classes. That is, you no longer write this: | |
| class Foo(): # syntax error | |
| ... | |
| You must write this instead: | |
| class Foo: | |
| ... | |
| This was already the preferred syntax in release 0.9.8 but many | |
| people seemed not to have picked it up. There's a Python script that | |
| fixes old code: demo/scripts/classfix.py. | |
| * There's a new reserved word: "access". The syntax and semantics are | |
| still subject of research and debate (as well as undocumented), but | |
| the parser knows about the keyword so you must not use it as a | |
| variable, function, or attribute name. | |
| Changes to the semantics of the language proper | |
| ----------------------------------------------- | |
| * The following compatibility hack is removed: if a function was | |
| defined with two or more arguments, and called with a single argument | |
| that was a tuple with just as many arguments, the items of this tuple | |
| would be used as the arguments. This is no longer supported. | |
| Changes to the semantics of classes and instances | |
| ------------------------------------------------- | |
| * Class variables are now also accessible as instance variables for | |
| reading (assignment creates an instance variable which overrides the | |
| class variable of the same name though). | |
| * If a class attribute is a user-defined function, a new kind of | |
| object is returned: an "unbound method". This contains a pointer to | |
| the class and can only be called with a first argument which is a | |
| member of that class (or a derived class). | |
| * If a class defines a method __init__(self, arg1, ...) then this | |
| method is called when a class instance is created by the classname() | |
| construct. Arguments passed to classname() are passed to the | |
| __init__() method. The __init__() methods of base classes are not | |
| automatically called; the derived __init__() method must call these if | |
| necessary (this was done so the derived __init__() method can choose | |
| the call order and arguments for the base __init__() methods). | |
| * If a class defines a method __del__(self) then this method is called | |
| when an instance of the class is about to be destroyed. This makes it | |
| possible to implement clean-up of external resources attached to the | |
| instance. As with __init__(), the __del__() methods of base classes | |
| are not automatically called. If __del__ manages to store a reference | |
| to the object somewhere, its destruction is postponed; when the object | |
| is again about to be destroyed its __del__() method will be called | |
| again. | |
| * Classes may define a method __hash__(self) to allow their instances | |
| to be used as dictionary keys. This must return a 32-bit integer. | |
| Minor improvements | |
| ------------------ | |
| * Function and class objects now know their name (the name given in | |
| the 'def' or 'class' statement that created them). | |
| * Class instances now know their class name. | |
| Additions to built-in operations | |
| -------------------------------- | |
| * The % operator with a string left argument implements formatting | |
| similar to sprintf() in C. The right argument is either a single | |
| value or a tuple of values. All features of Standard C sprintf() are | |
| supported except %p. | |
| * Dictionaries now support almost any key type, instead of just | |
| strings. (The key type must be an immutable type or must be a class | |
| instance where the class defines a method __hash__(), in order to | |
| avoid losing track of keys whose value may change.) | |
| * Built-in methods are now compared properly: when comparing x.meth1 | |
| and y.meth2, if x is equal to y and the methods are defined by the | |
| same function, x.meth1 compares equal to y.meth2. | |
| Additions to built-in functions | |
| ------------------------------- | |
| * str(x) returns a string version of its argument. If the argument is | |
| a string it is returned unchanged, otherwise it returns `x`. | |
| * repr(x) returns the same as `x`. (Some users found it easier to | |
| have this as a function.) | |
| * round(x) returns the floating point number x rounded to a whole | |
| number, represented as a floating point number. round(x, n) returns x | |
| rounded to n digits. | |
| * hasattr(x, name) returns true when x has an attribute with the given | |
| name. | |
| * hash(x) returns a hash code (32-bit integer) of an arbitrary | |
| immutable object's value. | |
| * id(x) returns a unique identifier (32-bit integer) of an arbitrary | |
| object. | |
| * compile() compiles a string to a Python code object. | |
| * exec() and eval() now support execution of code objects. | |
| Changes to the documented part of the library (standard modules) | |
| ---------------------------------------------------------------- | |
| * os.path.normpath() (a.k.a. posixpath.normpath()) has been fixed so | |
| the border case '/foo/..' returns '/' instead of ''. | |
| * A new function string.find() is added with similar semantics to | |
| string.index(); however when it does not find the given substring it | |
| returns -1 instead of raising string.index_error. | |
| Changes to built-in modules | |
| --------------------------- | |
| * New optional module 'array' implements operations on sequences of | |
| integers or floating point numbers of a particular size. This is | |
| useful to manipulate large numerical arrays or to read and write | |
| binary files consisting of numerical data. | |
| * Regular expression objects created by module regex now support a new | |
| method named group(), which returns one or more \(...\) groups by number. | |
| The number of groups is increased from 10 to 100. | |
| * Function compile() in module regex now supports an optional mapping | |
| argument; a variable casefold is added to the module which can be used | |
| as a standard uppercase to lowercase mapping. | |
| * Module time now supports many routines that are defined in the | |
| Standard C time interface (<time.h>): gmtime(), localtime(), | |
| asctime(), ctime(), mktime(), as well as these variables (taken from | |
| System V): timezone, altzone, daylight and tzname. (The corresponding | |
| functions in the undocumented module calendar have been removed; the | |
| undocumented and unfinished module tzparse is now obsolete and will | |
| disappear in a future release.) | |
| * Module strop (the fast built-in version of standard module string) | |
| now uses C's definition of whitespace instead of fixing it to space, | |
| tab and newline; in practice this usually means that vertical tab, | |
| form feed and return are now also considered whitespace. It exports | |
| the string of characters that are considered whitespace as well as the | |
| characters that are considered lowercase or uppercase. | |
| * Module sys now defines the variable builtin_module_names, a list of | |
| names of modules built into the current interpreter (including not | |
| yet imported, but excluding two special modules that always have to be | |
| defined -- sys and builtin). | |
| * Objects created by module sunaudiodev now also support flush() and | |
| close() methods. | |
| * Socket objects created by module socket now support an optional | |
| flags argument for their methods sendto() and recvfrom(). | |
| * Module marshal now supports dumping to and loading from strings, | |
| through the functions dumps() and loads(). | |
| * Module stdwin now supports some new functionality. You may have to | |
| ftp the latest version: ftp.cwi.nl:/pub/stdwin/stdwinforviews.tar.Z.) | |
| Bugs fixed | |
| ---------- | |
| * Fixed comparison of negative long integers. | |
| * The tokenizer no longer botches input lines longer than BUFSIZ. | |
| * Fixed several severe memory leaks in module select. | |
| * Fixed memory leaks in modules socket and sv. | |
| * Fixed memory leak in divmod() for long integers. | |
| * Problems with definition of floatsleep() on Suns fixed. | |
| * Many portability bugs fixed (and undoubtedly new ones added :-). | |
| Changes to the build procedure | |
| ------------------------------ | |
| * The Makefile supports some new targets: "make default" and "make | |
| all". Both are by normally equivalent to "make python". | |
| * The Makefile no longer uses $> since it's not supported by all | |
| versions of Make. | |
| * The header files now all contain #ifdef constructs designed to make | |
| it safe to include the same header file twice, as well as support for | |
| inclusion from C++ programs (automatic extern "C" { ... } added). | |
| Freezing Python scripts | |
| ----------------------- | |
| * There is now some support for "freezing" a Python script as a | |
| stand-alone executable binary file. See the script | |
| demo/scripts/freeze.py. It will require some site-specific tailoring | |
| of the script to get this working, but is quite worthwhile if you write | |
| Python code for other who may not have built and installed Python. | |
| MS-DOS | |
| ------ | |
| * A new MS-DOS port has been done, using MSC 6.0 (I believe). Thanks, | |
| Marcel van der Peijl! This requires fewer compatibility hacks in | |
| posixmodule.c. The executable is not yet available but will be soon | |
| (check the mailing list). | |
| * The default PYTHONPATH has changed. | |
| Changes for developers of extension modules | |
| ------------------------------------------- | |
| * Read src/ChangeLog for full details. | |
| SGI specific changes | |
| -------------------- | |
| * Read src/ChangeLog for full details. | |
| ================================== | |
| ==> Release 0.9.8 (9 Jan 1993) <== | |
| ================================== | |
| I claim no completeness here, but I've tried my best to scan the log | |
| files throughout my source tree for interesting bits of news. A more | |
| complete account of the changes is to be found in the various | |
| ChangeLog files. See also "News for release 0.9.7beta" below if you're | |
| still using release 0.9.6, and the file HISTORY if you have an even | |
| older release. | |
| --Guido | |
| Changes to the language proper | |
| ------------------------------ | |
| There's only one big change: the conformance checking for function | |
| argument lists (of user-defined functions only) is stricter. Earlier, | |
| you could get away with the following: | |
| (a) define a function of one argument and call it with any | |
| number of arguments; if the actual argument count wasn't | |
| one, the function would receive a tuple containing the | |
| arguments (an empty tuple if there were none). | |
| (b) define a function of two arguments, and call it with more | |
| than two arguments; if there were more than two arguments, | |
| the second argument would be passed as a tuple containing | |
| the second and further actual arguments. | |
| (Note that an argument (formal or actual) that is a tuple is counted as | |
| one; these rules don't apply inside such tuples, only at the top level | |
| of the argument list.) | |
| Case (a) was needed to accommodate variable-length argument lists; | |
| there is now an explicit "varargs" feature (precede the last argument | |
| with a '*'). Case (b) was needed for compatibility with old class | |
| definitions: up to release 0.9.4 a method with more than one argument | |
| had to be declared as "def meth(self, (arg1, arg2, ...)): ...". | |
| Version 0.9.6 provide better ways to handle both casees, bot provided | |
| backward compatibility; version 0.9.8 retracts the compatibility hacks | |
| since they also cause confusing behavior if a function is called with | |
| the wrong number of arguments. | |
| There's a script that helps converting classes that still rely on (b), | |
| provided their methods' first argument is called "self": | |
| demo/scripts/methfix.py. | |
| If this change breaks lots of code you have developed locally, try | |
| #defining COMPAT_HACKS in ceval.c. | |
| (There's a third compatibility hack, which is the reverse of (a): if a | |
| function is defined with two or more arguments, and called with a | |
| single argument that is a tuple with just as many arguments, the items | |
| of this tuple will be used as the arguments. Although this can (and | |
| should!) be done using the built-in function apply() instead, it isn't | |
| withdrawn yet.) | |
| One minor change: comparing instance methods works like expected, so | |
| that if x is an instance of a user-defined class and has a method m, | |
| then (x.m==x.m) yields 1. | |
| The following was already present in 0.9.7beta, but not explicitly | |
| mentioned in the NEWS file: user-defined classes can now define types | |
| that behave in almost allrespects like numbers. See | |
| demo/classes/Rat.py for a simple example. | |
| Changes to the build process | |
| ---------------------------- | |
| The Configure.py script and the Makefile has been made somewhat more | |
| bullet-proof, after reports of (minor) trouble on certain platforms. | |
| There is now a script to patch Makefile and config.c to add a new | |
| optional built-in module: Addmodule.sh. Read the script before using! | |
| Using Addmodule.sh, all optional modules can now be configured at | |
| compile time using Configure.py, so there are no modules left that | |
| require dynamic loading. | |
| The Makefile has been fixed to make it easier to use with the VPATH | |
| feature of some Make versions (e.g. SunOS). | |
| Changes affecting portability | |
| ----------------------------- | |
| Several minor portability problems have been solved, e.g. "malloc.h" | |
| has been renamed to "mymalloc.h", "strdup.c" is no longer used, and | |
| the system now tolerates malloc(0) returning 0. | |
| For dynamic loading on the SGI, Jack Jansen's dl 1.6 is now | |
| distributed with Python. This solves several minor problems, in | |
| particular scripts invoked using #! can now use dynamic loading. | |
| Changes to the interpreter interface | |
| ------------------------------------ | |
| On popular demand, there's finally a "profile" feature for interactive | |
| use of the interpreter. If the environment variable $PYTHONSTARTUP is | |
| set to the name of an existing file, Python statements in this file | |
| are executed when the interpreter is started in interactive mode. | |
| There is a new clean-up mechanism, complementing try...finally: if you | |
| assign a function object to sys.exitfunc, it will be called when | |
| Python exits or receives a SIGTERM or SIGHUP signal. | |
| The interpreter is now generally assumed to live in | |
| /usr/local/bin/python (as opposed to /usr/local/python). The script | |
| demo/scripts/fixps.py will update old scripts in place (you can easily | |
| modify it to do other similar changes). | |
| Most I/O that uses sys.stdin/stdout/stderr will now use any object | |
| assigned to those names as long as the object supports readline() or | |
| write() methods. | |
| The parser stack has been increased to 500 to accommodate more | |
| complicated expressions (7 levels used to be the practical maximum, | |
| it's now about 38). | |
| The limit on the size of the *run-time* stack has completely been | |
| removed -- this means that tuple or list displays can contain any | |
| number of elements (formerly more than 50 would crash the | |
| interpreter). | |
| Changes to existing built-in functions and methods | |
| -------------------------------------------------- | |
| The built-in functions int(), long(), float(), oct() and hex() now | |
| also apply to class instalces that define corresponding methods | |
| (__int__ etc.). | |
| New built-in functions | |
| ---------------------- | |
| The new functions str() and repr() convert any object to a string. | |
| The function repr(x) is in all respects equivalent to `x` -- some | |
| people prefer a function for this. The function str(x) does the same | |
| except if x is already a string -- then it returns x unchanged | |
| (repr(x) adds quotes and escapes "funny" characters as octal escapes). | |
| The new function cmp(x, y) returns -1 if x<y, 0 if x==y, 1 if x>y. | |
| Changes to general built-in modules | |
| ----------------------------------- | |
| The time module's functions are more general: time() returns a | |
| floating point number and sleep() accepts one. Their accuracies | |
| depends on the precision of the system clock. Millisleep is no longer | |
| needed (although it still exists for now), but millitimer is still | |
| needed since on some systems wall clock time is only available with | |
| seconds precision, while a source of more precise time exists that | |
| isn't synchronized with the wall clock. (On UNIX systems that support | |
| the BSD gettimeofday() function, time.time() is as time.millitimer().) | |
| The string representation of a file object now includes an address: | |
| '<file 'filename', mode 'r' at #######>' where ###### is a hex number | |
| (the object's address) to make it unique. | |
| New functions added to posix: nice(), setpgrp(), and if your system | |
| supports them: setsid(), setpgid(), tcgetpgrp(), tcsetpgrp(). | |
| Improvements to the socket module: socket objects have new methods | |
| getpeername() and getsockname(), and the {get,set}sockopt methods can | |
| now get/set any kind of option using strings built with the new struct | |
| module. And there's a new function fromfd() which creates a socket | |
| object given a file descriptor (useful for servers started by inetd, | |
| which have a socket connected to stdin and stdout). | |
| Changes to SGI-specific built-in modules | |
| ---------------------------------------- | |
| The FORMS library interface (fl) now requires FORMS 2.1a. Some new | |
| functions have been added and some bugs have been fixed. | |
| Additions to al (audio library interface): added getname(), | |
| getdefault() and getminmax(). | |
| The gl modules doesn't call "foreground()" when initialized (this | |
| caused some problems) like it dit in 0.9.7beta (but not before). | |
| There's a new gl function 'gversion() which returns a version string. | |
| The interface to sv (Indigo video interface) has totally changed. | |
| (Sorry, still no documentation, but see the examples in | |
| demo/sgi/{sv,video}.) | |
| Changes to standard library modules | |
| ----------------------------------- | |
| Most functions in module string are now much faster: they're actually | |
| implemented in C. The module containing the C versions is called | |
| "strop" but you should still import "string" since strop doesn't | |
| provide all the interfaces defined in string (and strop may be renamed | |
| to string when it is complete in a future release). | |
| string.index() now accepts an optional third argument giving an index | |
| where to start searching in the first argument, so you can find second | |
| and further occurrences (this is similar to the regular expression | |
| functions in regex). | |
| The definition of what string.splitfields(anything, '') should return | |
| is changed for the last time: it returns a singleton list containing | |
| its whole first argument unchanged. This is compatible with | |
| regsub.split() which also ignores empty delimiter matches. | |
| posixpath, macpath: added dirname() and normpath() (and basename() to | |
| macpath). | |
| The mainloop module (for use with stdwin) can now demultiplex input | |
| from other sources, as long as they can be polled with select(). | |
| New built-in modules | |
| -------------------- | |
| Module struct defines functions to pack/unpack values to/from strings | |
| representing binary values in native byte order. | |
| Module strop implements C versions of many functions from string (see | |
| above). | |
| Optional module fcntl defines interfaces to fcntl() and ioctl() -- | |
| UNIX only. (Not yet properly documented -- see however src/fcntl.doc.) | |
| Optional module mpz defines an interface to an altaernative long | |
| integer implementation, the GNU MPZ library. | |
| Optional module md5 uses the GNU MPZ library to calculate MD5 | |
| signatures of strings. | |
| There are also optional new modules specific to SGI machines: imageop | |
| defines some simple operations to images represented as strings; sv | |
| interfaces to the Indigo video board; cl interfaces to the (yet | |
| unreleased) compression library. | |
| New standard library modules | |
| ---------------------------- | |
| (Unfortunately the following modules are not all documented; read the | |
| sources to find out more about them!) | |
| autotest: run testall without showing any output unless it differs | |
| from the expected output | |
| bisect: use bisection to insert or find an item in a sorted list | |
| colorsys: defines conversions between various color systems (e.g. RGB | |
| <-> YUV) | |
| nntplib: a client interface to NNTP servers | |
| pipes: utility to construct pipeline from templates, e.g. for | |
| conversion from one file format to another using several utilities. | |
| regsub: contains three functions that are more or less compatible with | |
| awk functions of the same name: sub() and gsub() do string | |
| substitution, split() splits a string using a regular expression to | |
| define how separators are define. | |
| test_types: test operations on the built-in types of Python | |
| toaiff: convert various audio file formats to AIFF format | |
| tzparse: parse the TZ environment parameter (this may be less general | |
| than it could be, let me know if you fix it). | |
| (Note that the obsolete module "path" no longer exists.) | |
| New SGI-specific library modules | |
| -------------------------------- | |
| CL: constants for use with the built-in compression library interface (cl) | |
| Queue: a multi-producer, multi-consumer queue class implemented for | |
| use with the built-in thread module | |
| SOCKET: constants for use with built-in module socket, e.g. to set/get | |
| socket options. This is SGI-specific because the constants to be | |
| passed are system-dependent. You can generate a version for your own | |
| system by running the script demo/scripts/h2py.py with | |
| /usr/include/sys/socket.h as input. | |
| cddb: interface to the database used by the CD player | |
| torgb: convert various image file types to rgb format (requires pbmplus) | |
| New demos | |
| --------- | |
| There's an experimental interface to define Sun RPC clients and | |
| servers in demo/rpc. | |
| There's a collection of interfaces to WWW, WAIS and Gopher (both | |
| Python classes and program providing a user interface) in demo/www. | |
| This includes a program texi2html.py which converts texinfo files to | |
| HTML files (the format used hy WWW). | |
| The ibrowse demo has moved from demo/stdwin/ibrowse to demo/ibrowse. | |
| For SGI systems, there's a whole collection of programs and classes | |
| that make use of the Indigo video board in demo/sgi/{sv,video}. This | |
| represents a significant amount of work that we're giving away! | |
| There are demos "rsa" and "md5test" that exercise the mpz and md5 | |
| modules, respectively. The rsa demo is a complete implementation of | |
| the RSA public-key cryptosystem! | |
| A bunch of games and examples submitted by Stoffel Erasmus have been | |
| included in demo/stoffel. | |
| There are miscellaneous new files in some existing demo | |
| subdirectories: classes/bitvec.py, scripts/{fixps,methfix}.py, | |
| sgi/al/cmpaf.py, sockets/{mcast,gopher}.py. | |
| There are also many minor changes to existing files, but I'm too lazy | |
| to run a diff and note the differences -- you can do this yourself if | |
| you save the old distribution's demos. One highlight: the | |
| stdwin/python.py demo is much improved! | |
| Changes to the documentation | |
| ---------------------------- | |
| The LaTeX source for the library uses different macros to enable it to | |
| be converted to texinfo, and from there to INFO or HTML format so it | |
| can be browsed as a hypertext. The net result is that you can now | |
| read the Python library documentation in Emacs info mode! | |
| Changes to the source code that affect C extension writers | |
| ---------------------------------------------------------- | |
| The function strdup() no longer exists (it was used only in one places | |
| and is somewhat of a portability problem since some systems have the | |
| same function in their C library. | |
| The functions NEW() and RENEW() allocate one spare byte to guard | |
| against a NULL return from malloc(0) being taken for an error, but | |
| this should not be relied upon. | |
| ========================= | |
| ==> Release 0.9.7beta <== | |
| ========================= | |
| Changes to the language proper | |
| ------------------------------ | |
| User-defined classes can now implement operations invoked through | |
| special syntax, such as x[i] or `x` by defining methods named | |
| __getitem__(self, i) or __repr__(self), etc. | |
| Changes to the build process | |
| ---------------------------- | |
| Instead of extensive manual editing of the Makefile to select | |
| compile-time options, you can now run a Configure.py script. | |
| The Makefile as distributed builds a minimal interpreter sufficient to | |
| run Configure.py. See also misc/BUILD | |
| The Makefile now includes more "utility" targets, e.g. install and | |
| tags/TAGS | |
| Using the provided strtod.c and strtol.c are now separate options, as | |
| on the Sun the provided strtod.c dumps core :-( | |
| The regex module is now an option chosen by the Makefile, since some | |
| (old) C compilers choke on regexpr.c | |
| Changes affecting portability | |
| ----------------------------- | |
| You need STDWIN version 0.9.7 (released 30 June 1992) for the stdwin | |
| interface | |
| Dynamic loading is now supported for Sun (and other non-COFF systems) | |
| through dld-3.2.3, as well as for SGI (a new version of Jack Jansen's | |
| DL is out, 1.4) | |
| The system-dependent code for the use of the select() system call is | |
| moved to one file: myselect.h | |
| Thanks to Jaap Vermeulen, the code should now port cleanly to the | |
| SEQUENT | |
| Changes to the interpreter interface | |
| ------------------------------------ | |
| The interpretation of $PYTHONPATH in the environment is different: it | |
| is inserted in front of the default path instead of overriding it | |
| Changes to existing built-in functions and methods | |
| -------------------------------------------------- | |
| List objects now support an optional argument to their sort() method, | |
| which is a comparison function similar to qsort(3) in C | |
| File objects now have a method fileno(), used by the new select module | |
| (see below) | |
| New built-in function | |
| --------------------- | |
| coerce(x, y): take two numbers and return a tuple containing them | |
| both converted to a common type | |
| Changes to built-in modules | |
| --------------------------- | |
| sys: fixed core dumps in settrace() and setprofile() | |
| socket: added socket methods setsockopt() and getsockopt(); and | |
| fileno(), used by the new select module (see below) | |
| stdwin: added fileno() == connectionnumber(), in support of new module | |
| select (see below) | |
| posix: added get{eg,eu,g,u}id(); waitpid() is now a separate function. | |
| gl: added qgetfd() | |
| fl: added several new functions, fixed several obscure bugs, adapted | |
| to FORMS 2.1 | |
| Changes to standard modules | |
| --------------------------- | |
| posixpath: changed implementation of ismount() | |
| string: atoi() no longer mistakes leading zero for octal number | |
| ... | |
| New built-in modules | |
| -------------------- | |
| Modules marked "dynamic only" are not configured at compile time but | |
| can be loaded dynamically. You need to turn on the DL or DLD option in | |
| the Makefile for support dynamic loading of modules (this requires | |
| external code). | |
| select: interfaces to the BSD select() system call | |
| dbm: interfaces to the (new) dbm library (dynamic only) | |
| nis: interfaces to some NIS functions (aka yellow pages) | |
| thread: limited form of multiple threads (sgi only) | |
| audioop: operations useful for audio programs, e.g. u-LAW and ADPCM | |
| coding (dynamic only) | |
| cd: interface to Indigo SCSI CDROM player audio library (sgi only) | |
| jpeg: read files in JPEG format (dynamic only, sgi only; needs | |
| external code) | |
| imgfile: read SGI image files (dynamic only, sgi only) | |
| sunaudiodev: interface to sun's /dev/audio (dynamic only, sun only) | |
| sv: interface to Indigo video library (sgi only) | |
| pc: a minimal set of MS-DOS interfaces (MS-DOS only) | |
| rotor: encryption, by Lance Ellinghouse (dynamic only) | |
| New standard modules | |
| -------------------- | |
| Not all these modules are documented. Read the source: | |
| lib/<modulename>.py. Sometimes a file lib/<modulename>.doc contains | |
| additional documentation. | |
| imghdr: recognizes image file headers | |
| sndhdr: recognizes sound file headers | |
| profile: print run-time statistics of Python code | |
| readcd, cdplayer: companion modules for built-in module cd (sgi only) | |
| emacs: interface to Emacs using py-connect.el (see below). | |
| SOCKET: symbolic constant definitions for socket options | |
| SUNAUDIODEV: symbolic constant definitions for sunaudiodef (sun only) | |
| SV: symbolic constant definitions for sv (sgi only) | |
| CD: symbolic constant definitions for cd (sgi only) | |
| New demos | |
| --------- | |
| scripts/pp.py: execute Python as a filter with a Perl-like command | |
| line interface | |
| classes/: examples using the new class features | |
| threads/: examples using the new thread module | |
| sgi/cd/: examples using the new cd module | |
| Changes to the documentation | |
| ---------------------------- | |
| The last-minute syntax changes of release 0.9.6 are now reflected | |
| everywhere in the manuals | |
| The reference manual has a new section (3.2) on implementing new kinds | |
| of numbers, sequences or mappings with user classes | |
| Classes are now treated extensively in the tutorial (chapter 9) | |
| Slightly restructured the system-dependent chapters of the library | |
| manual | |
| The file misc/EXTENDING incorporates documentation for mkvalue() and | |
| a new section on error handling | |
| The files misc/CLASSES and misc/ERRORS are no longer necessary | |
| The doc/Makefile now creates PostScript files automatically | |
| Miscellaneous changes | |
| --------------------- | |
| Incorporated Tim Peters' changes to python-mode.el, it's now version | |
| 1.06 | |
| A python/Emacs bridge (provided by Terrence M. Brannon) lets a Python | |
| program running in an Emacs buffer execute Emacs lisp code. The | |
| necessary Python code is in lib/emacs.py. The Emacs code is | |
| misc/py-connect.el (it needs some external Emacs lisp code) | |
| Changes to the source code that affect C extension writers | |
| ---------------------------------------------------------- | |
| New service function mkvalue() to construct a Python object from C | |
| values according to a "format" string a la getargs() | |
| Most functions from pythonmain.c moved to new pythonrun.c which is | |
| in libpython.a. This should make embedded versions of Python easier | |
| ceval.h is split in eval.h (which needs compile.h and only declares | |
| eval_code) and ceval.h (which doesn't need compile.hand declares the | |
| rest) | |
| ceval.h defines macros BGN_SAVE / END_SAVE for use with threads (to | |
| improve the parallelism of multi-threaded programs by letting other | |
| Python code run when a blocking system call or something similar is | |
| made) | |
| In structmember.[ch], new member types BYTE, CHAR and unsigned | |
| variants have been added | |
| New file xxmodule.c is a template for new extension modules. | |
| ================================== | |
| ==> Release 0.9.6 (6 Apr 1992) <== | |
| ================================== | |
| Misc news in 0.9.6: | |
| - Restructured the misc subdirectory | |
| - Reference manual completed, library manual much extended (with indexes!) | |
| - the GNU Readline library is now distributed standard with Python | |
| - the script "../demo/scripts/classfix.py" fixes Python modules using old | |
| class syntax | |
| - Emacs python-mode.el (was python.el) vastly improved (thanks, Tim!) | |
| - Because of the GNU copyleft business I am not using the GNU regular | |
| expression implementation but a free re-implementation by Tatu Ylonen | |
| that recently appeared in comp.sources.misc (Bravo, Tatu!) | |
| New features in 0.9.6: | |
| - stricter try stmt syntax: cannot mix except and finally clauses on 1 try | |
| - New module 'os' supplants modules 'mac' and 'posix' for most cases; | |
| module 'path' is replaced by 'os.path' | |
| - os.path.split() return value differs from that of old path.split() | |
| - sys.exc_type, sys.exc_value, sys.exc_traceback are set to the exception | |
| currently being handled | |
| - sys.last_type, sys.last_value, sys.last_traceback remember last unhandled | |
| exception | |
| - New function string.expandtabs() expands tabs in a string | |
| - Added times() interface to posix (user & sys time of process & children) | |
| - Added uname() interface to posix (returns OS type, hostname, etc.) | |
| - New built-in function execfile() is like exec() but from a file | |
| - Functions exec() and eval() are less picky about whitespace/newlines | |
| - New built-in functions getattr() and setattr() access arbitrary attributes | |
| - More generic argument handling in built-in functions (see "./EXTENDING") | |
| - Dynamic loading of modules written in C or C++ (see "./DYNLOAD") | |
| - Division and modulo for long and plain integers with negative operands | |
| have changed; a/b is now floor(float(a)/float(b)) and a%b is defined | |
| as a-(a/b)*b. So now the outcome of divmod(a,b) is the same as | |
| (a/b, a%b) for integers. For floats, % is also changed, but of course | |
| / is unchanged, and divmod(x,y) does not yield (x/y, x%y)... | |
| - A function with explicit variable-length argument list can be declared | |
| like this: def f(*args): ...; or even like this: def f(a, b, *rest): ... | |
| - Code tracing and profiling features have been added, and two source | |
| code debuggers are provided in the library (pdb.py, tty-oriented, | |
| and wdb, window-oriented); you can now step through Python programs! | |
| See sys.settrace() and sys.setprofile(), and "../lib/pdb.doc" | |
| - '==' is now the only equality operator; "../demo/scripts/eqfix.py" is | |
| a script that fixes old Python modules | |
| - Plain integer right shift now uses sign extension | |
| - Long integer shift/mask operations now simulate 2's complement | |
| to give more useful results for negative operands | |
| - Changed/added range checks for long/plain integer shifts | |
| - Options found after "-c command" are now passed to the command in sys.argv | |
| (note subtle incompatibility with "python -c command -- -options"!) | |
| - Module stdwin is better protected against touching objects after they've | |
| been closed; menus can now also be closed explicitly | |
| - Stdwin now uses its own exception (stdwin.error) | |
| New features in 0.9.5 (released as Macintosh application only, 2 Jan 1992): | |
| - dictionary objects can now be compared properly; e.g., {}=={} is true | |
| - new exception SystemExit causes termination if not caught; | |
| it is raised by sys.exit() so that 'finally' clauses can clean up, | |
| and it may even be caught. It does work interactively! | |
| - new module "regex" implements GNU Emacs style regular expressions; | |
| module "regexp" is rewritten in Python for backward compatibility | |
| - formal parameter lists may contain trailing commas | |
| Bugs fixed in 0.9.6: | |
| - assigning to or deleting a list item with a negative index dumped core | |
| - divmod(-10L,5L) returned (-3L, 5L) instead of (-2L, 0L) | |
| Bugs fixed in 0.9.5: | |
| - masking operations involving negative long integers gave wrong results | |
| =================================== | |
| ==> Release 0.9.4 (24 Dec 1991) <== | |
| =================================== | |
| - new function argument handling (see below) | |
| - built-in apply(func, args) means func(args[0], args[1], ...) | |
| - new, more refined exceptions | |
| - new exception string values (NameError = 'NameError' etc.) | |
| - better checking for math exceptions | |
| - for sequences (string/tuple/list), x[-i] is now equivalent to x[len(x)-i] | |
| - fixed list assignment bug: "a[1:1] = a" now works correctly | |
| - new class syntax, without extraneous parentheses | |
| - new 'global' statement to assign global variables from within a function | |
| New class syntax | |
| ---------------- | |
| You can now declare a base class as follows: | |
| class B: # Was: class B(): | |
| def some_method(self): ... | |
| ... | |
| and a derived class thusly: | |
| class D(B): # Was: class D() = B(): | |
| def another_method(self, arg): ... | |
| Multiple inheritance looks like this: | |
| class M(B, D): # Was: class M() = B(), D(): | |
| def this_or_that_method(self, arg): ... | |
| The old syntax is still accepted by Python 0.9.4, but will disappear | |
| in Python 1.0 (to be posted to comp.sources). | |
| New 'global' statement | |
| ---------------------- | |
| Every now and then you have a global variable in a module that you | |
| want to change from within a function in that module -- say, a count | |
| of calls to a function, or an option flag, etc. Until now this was | |
| not directly possible. While several kludges are known that | |
| circumvent the problem, and often the need for a global variable can | |
| be avoided by rewriting the module as a class, this does not always | |
| lead to clearer code. | |
| The 'global' statement solves this dilemma. Its occurrence in a | |
| function body means that, for the duration of that function, the | |
| names listed there refer to global variables. For instance: | |
| total = 0.0 | |
| count = 0 | |
| def add_to_total(amount): | |
| global total, count | |
| total = total + amount | |
| count = count + 1 | |
| 'global' must be repeated in each function where it is needed. The | |
| names listed in a 'global' statement must not be used in the function | |
| before the statement is reached. | |
| Remember that you don't need to use 'global' if you only want to *use* | |
| a global variable in a function; nor do you need to for assignments to | |
| parts of global variables (e.g., list or dictionary items or | |
| attributes of class instances). This has not changed; in fact | |
| assignment to part of a global variable was the standard workaround. | |
| New exceptions | |
| -------------- | |
| Several new exceptions have been defined, to distinguish more clearly | |
| between different types of errors. | |
| name meaning was | |
| AttributeError reference to non-existing attribute NameError | |
| IOError unexpected I/O error RuntimeError | |
| ImportError import of non-existing module or name NameError | |
| IndexError invalid string, tuple or list index RuntimeError | |
| KeyError key not in dictionary RuntimeError | |
| OverflowError numeric overflow RuntimeError | |
| SyntaxError invalid syntax RuntimeError | |
| ValueError invalid argument value RuntimeError | |
| ZeroDivisionError division by zero RuntimeError | |
| The string value of each exception is now its name -- this makes it | |
| easier to experimentally find out which operations raise which | |
| exceptions; e.g.: | |
| >>> KeyboardInterrupt | |
| 'KeyboardInterrupt' | |
| >>> | |
| New argument passing semantics | |
| ------------------------------ | |
| Off-line discussions with Steve Majewski and Daniel LaLiberte have | |
| convinced me that Python's parameter mechanism could be changed in a | |
| way that made both of them happy (I hope), kept me happy, fixed a | |
| number of outstanding problems, and, given some backward compatibility | |
| provisions, would only break a very small amount of existing code -- | |
| probably all mine anyway. In fact I suspect that most Python users | |
| will hardly notice the difference. And yet it has cost me at least | |
| one sleepless night to decide to make the change... | |
| Philosophically, the change is quite radical (to me, anyway): a | |
| function is no longer called with either zero or one argument, which | |
| is a tuple if there appear to be more arguments. Every function now | |
| has an argument list containing 0, 1 or more arguments. This list is | |
| always implemented as a tuple, and it is a (run-time) error if a | |
| function is called with a different number of arguments than expected. | |
| What's the difference? you may ask. The answer is, very little unless | |
| you want to write variadic functions -- functions that may be called | |
| with a variable number of arguments. Formerly, you could write a | |
| function that accepted one or more arguments with little trouble, but | |
| writing a function that could be called with either 0 or 1 argument | |
| (or more) was next to impossible. This is now a piece of cake: you | |
| can simply declare an argument that receives the entire argument | |
| tuple, and check its length -- it will be of size 0 if there are no | |
| arguments. | |
| Another anomaly of the old system was the way multi-argument methods | |
| (in classes) had to be declared, e.g.: | |
| class Point(): | |
| def init(self, (x, y, color)): ... | |
| def setcolor(self, color): ... | |
| dev moveto(self, (x, y)): ... | |
| def draw(self): ... | |
| Using the new scheme there is no need to enclose the method arguments | |
| in an extra set of parentheses, so the above class could become: | |
| class Point: | |
| def init(self, x, y, color): ... | |
| def setcolor(self, color): ... | |
| dev moveto(self, x, y): ... | |
| def draw(self): ... | |
| That is, the equivalence rule between methods and functions has | |
| changed so that now p.moveto(x,y) is equivalent to Point.moveto(p,x,y) | |
| while formerly it was equivalent to Point.moveto(p,(x,y)). | |
| A special backward compatibility rule makes that the old version also | |
| still works: whenever a function with exactly two arguments (at the top | |
| level) is called with more than two arguments, the second and further | |
| arguments are packed into a tuple and passed as the second argument. | |
| This rule is invoked independently of whether the function is actually a | |
| method, so there is a slight chance that some erroneous calls of | |
| functions expecting two arguments with more than that number of | |
| arguments go undetected at first -- when the function tries to use the | |
| second argument it may find it is a tuple instead of what was expected. | |
| Note that this rule will be removed from future versions of the | |
| language; it is a backward compatibility provision *only*. | |
| Two other rules and a new built-in function handle conversion between | |
| tuples and argument lists: | |
| Rule (a): when a function with more than one argument is called with a | |
| single argument that is a tuple of the right size, the tuple's items | |
| are used as arguments. | |
| Rule (b): when a function with exactly one argument receives no | |
| arguments or more than one, that one argument will receive a tuple | |
| containing the arguments (the tuple will be empty if there were no | |
| arguments). | |
| A new built-in function, apply(), was added to support functions that | |
| need to call other functions with a constructed argument list. The call | |
| apply(function, tuple) | |
| is equivalent to | |
| function(tuple[0], tuple[1], ..., tuple[len(tuple)-1]) | |
| While no new argument syntax was added in this phase, it would now be | |
| quite sensible to add explicit syntax to Python for default argument | |
| values (as in C++ or Modula-3), or a "rest" argument to receive the | |
| remaining arguments of a variable-length argument list. | |
| ======================================================== | |
| ==> Release 0.9.3 (never made available outside CWI) <== | |
| ======================================================== | |
| - string sys.version shows current version (also printed on interactive entry) | |
| - more detailed exceptions, e.g., IOError, ZeroDivisionError, etc. | |
| - 'global' statement to declare module-global variables assigned in functions. | |
| - new class declaration syntax: class C(Base1, Base2, ...): suite | |
| (the old syntax is still accepted -- be sure to convert your classes now!) | |
| - C shifting and masking operators: << >> ~ & ^ | (for ints and longs). | |
| - C comparison operators: == != (the old = and <> remain valid). | |
| - floating point numbers may now start with a period (e.g., .14). | |
| - definition of integer division tightened (always truncates towards zero). | |
| - new builtins hex(x), oct(x) return hex/octal string from (long) integer. | |
| - new list method l.count(x) returns the number of occurrences of x in l. | |
| - new SGI module: al (Indigo and 4D/35 audio library). | |
| - the FORMS interface (modules fl and FL) now uses FORMS 2.0 | |
| - module gl: added lrect{read,write}, rectzoom and pixmode; | |
| added (non-GL) functions (un)packrect. | |
| - new socket method: s.allowbroadcast(flag). | |
| - many objects support __dict__, __methods__ or __members__. | |
| - dir() lists anything that has __dict__. | |
| - class attributes are no longer read-only. | |
| - classes support __bases__, instances support __class__ (and __dict__). | |
| - divmod() now also works for floats. | |
| - fixed obscure bug in eval('1 '). | |
| =================================== | |
| ==> Release 0.9.2 (Autumn 1991) <== | |
| =================================== | |
| Highlights | |
| ---------- | |
| - tutorial now (almost) complete; library reference reorganized | |
| - new syntax: continue statement; semicolons; dictionary constructors; | |
| restrictions on blank lines in source files removed | |
| - dramatically improved module load time through precompiled modules | |
| - arbitrary precision integers: compute 2 to the power 1000 and more... | |
| - arithmetic operators now accept mixed type operands, e.g., 3.14/4 | |
| - more operations on list: remove, index, reverse; repetition | |
| - improved/new file operations: readlines, seek, tell, flush, ... | |
| - process management added to the posix module: fork/exec/wait/kill etc. | |
| - BSD socket operations (with example servers and clients!) | |
| - many new STDWIN features (color, fonts, polygons, ...) | |
| - new SGI modules: font manager and FORMS library interface | |
| Extended list of changes in 0.9.2 | |
| --------------------------------- | |
| Here is a summary of the most important user-visible changes in 0.9.2, | |
| in somewhat arbitrary order. Changes in later versions are listed in | |
| the "highlights" section above. | |
| 1. Changes to the interpreter proper | |
| - Simple statements can now be separated by semicolons. | |
| If you write "if t: s1; s2", both s1 and s2 are executed | |
| conditionally. | |
| - The 'continue' statement was added, with semantics as in C. | |
| - Dictionary displays are now allowed on input: {key: value, ...}. | |
| - Blank lines and lines bearing only a comment no longer need to | |
| be indented properly. (A completely empty line still ends a multi- | |
| line statement interactively.) | |
| - Mixed arithmetic is supported, 1 compares equal to 1.0, etc. | |
| - Option "-c command" to execute statements from the command line | |
| - Compiled versions of modules are cached in ".pyc" files, giving a | |
| dramatic improvement of start-up time | |
| - Other, smaller speed improvements, e.g., extracting characters from | |
| strings, looking up single-character keys, and looking up global | |
| variables | |
| - Interrupting a print operation raises KeyboardInterrupt instead of | |
| only cancelling the print operation | |
| - Fixed various portability problems (it now passes gcc with only | |
| warnings -- more Standard C compatibility will be provided in later | |
| versions) | |
| - Source is prepared for porting to MS-DOS | |
| - Numeric constants are now checked for overflow (this requires | |
| standard-conforming strtol() and strtod() functions; a correct | |
| strtol() implementation is provided, but the strtod() provided | |
| relies on atof() for everything, including error checking | |
| 2. Changes to the built-in types, functions and modules | |
| - New module socket: interface to BSD socket primitives | |
| - New modules pwd and grp: access the UNIX password and group databases | |
| - (SGI only:) New module "fm" interfaces to the SGI IRIX Font Manager | |
| - (SGI only:) New module "fl" interfaces to Mark Overmars' FORMS library | |
| - New numeric type: long integer, for unlimited precision | |
| - integer constants suffixed with 'L' or 'l' are long integers | |
| - new built-in function long(x) converts int or float to long | |
| - int() and float() now also convert from long integers | |
| - New built-in function: | |
| - pow(x, y) returns x to the power y | |
| - New operation and methods for lists: | |
| - l*n returns a new list consisting of n concatenated copies of l | |
| - l.remove(x) removes the first occurrence of the value x from l | |
| - l.index(x) returns the index of the first occurrence of x in l | |
| - l.reverse() reverses l in place | |
| - New operation for tuples: | |
| - t*n returns a tuple consisting of n concatenated copies of t | |
| - Improved file handling: | |
| - f.readline() no longer restricts the line length, is faster, | |
| and isn't confused by null bytes; same for raw_input() | |
| - f.read() without arguments reads the entire (rest of the) file | |
| - mixing of print and sys.stdout.write() has different effect | |
| - New methods for files: | |
| - f.readlines() returns a list containing the lines of the file, | |
| as read with f.readline() | |
| - f.flush(), f.tell(), f.seek() call their stdio counterparts | |
| - f.isatty() tests for "tty-ness" | |
| - New posix functions: | |
| - _exit(), exec(), fork(), getpid(), getppid(), kill(), wait() | |
| - popen() returns a file object connected to a pipe | |
| - utime() replaces utimes() (the latter is not a POSIX name) | |
| - New stdwin features, including: | |
| - font handling | |
| - color drawing | |
| - scroll bars made optional | |
| - polygons | |
| - filled and xor shapes | |
| - text editing objects now have a 'settext' method | |
| 3. Changes to the standard library | |
| - Name change: the functions path.cat and macpath.cat are now called | |
| path.join and macpath.join | |
| - Added new modules: formatter, mutex, persist, sched, mainloop | |
| - Added some modules and functionality to the "widget set" (which is | |
| still under development, so please bear with me): | |
| DirList, FormSplit, TextEdit, WindowSched | |
| - Fixed module testall to work non-interactively | |
| - Module string: | |
| - added functions join() and joinfields() | |
| - fixed center() to work correct and make it "transitive" | |
| - Obsolete modules were removed: util, minmax | |
| - Some modules were moved to the demo directory | |
| 4. Changes to the demonstration programs | |
| - Added new useful scripts: byteyears, eptags, fact, from, lfact, | |
| objgraph, pdeps, pi, primes, ptags, which | |
| - Added a bunch of socket demos | |
| - Doubled the speed of ptags | |
| - Added new stdwin demos: microedit, miniedit | |
| - Added a windowing interface to the Python interpreter: python (most | |
| useful on the Mac) | |
| - Added a browser for Emacs info files: demo/stdwin/ibrowse | |
| (yes, I plan to put all STDWIN and Python documentation in texinfo | |
| form in the future) | |
| 5. Other changes to the distribution | |
| - An Emacs Lisp file "python.el" is provided to facilitate editing | |
| Python programs in GNU Emacs (slightly improved since posted to | |
| gnu.emacs.sources) | |
| - Some info on writing an extension in C is provided | |
| - Some info on building Python on non-UNIX platforms is provided | |
| ===================================== | |
| ==> Release 0.9.1 (February 1991) <== | |
| ===================================== | |
| - Micro changes only | |
| - Added file "patchlevel.h" | |
| ===================================== | |
| ==> Release 0.9.0 (February 1991) <== | |
| ===================================== | |
| Original posting to alt.sources. |