Modules/clinic/posixmodule.c.h

/*[clinic input]
preserve
[clinic start generated code]*/

#if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)
#  include "pycore_gc.h"            // PyGC_Head
#  include "pycore_runtime.h"       // _Py_ID()
#endif


PyDoc_STRVAR(os_stat__doc__,
"stat($module, /, path, *, dir_fd=None, follow_symlinks=True)\n"
"--\n"
"\n"
"Perform a stat system call on the given path.\n"
"\n"
"  path\n"
"    Path to be examined; can be string, bytes, a path-like object or\n"
"    open-file-descriptor int.\n"
"  dir_fd\n"
"    If not None, it should be a file descriptor open to a directory,\n"
"    and path should be a relative string; path will then be relative to\n"
"    that directory.\n"
"  follow_symlinks\n"
"    If False, and the last element of the path is a symbolic link,\n"
"    stat will examine the symbolic link itself instead of the file\n"
"    the link points to.\n"
"\n"
"dir_fd and follow_symlinks may not be implemented\n"
"  on your platform.  If they are unavailable, using them will raise a\n"
"  NotImplementedError.\n"
"\n"
"It\'s an error to use dir_fd or follow_symlinks when specifying path as\n"
"  an open file descriptor.");

#define OS_STAT_METHODDEF    \
    {"stat", _PyCFunction_CAST(os_stat), METH_FASTCALL|METH_KEYWORDS, os_stat__doc__},

static PyObject *
os_stat_impl(PyObject *module, path_t *path, int dir_fd, int follow_symlinks);

static PyObject *
os_stat(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 3
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), &_Py_ID(dir_fd), &_Py_ID(follow_symlinks), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", "dir_fd", "follow_symlinks", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "stat",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[3];
    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
    path_t path = PATH_T_INITIALIZE("stat", "path", 0, 1);
    int dir_fd = DEFAULT_DIR_FD;
    int follow_symlinks = 1;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    if (!noptargs) {
        goto skip_optional_kwonly;
    }
    if (args[1]) {
        if (!FSTATAT_DIR_FD_CONVERTER(args[1], &dir_fd)) {
            goto exit;
        }
        if (!--noptargs) {
            goto skip_optional_kwonly;
        }
    }
    follow_symlinks = PyObject_IsTrue(args[2]);
    if (follow_symlinks < 0) {
        goto exit;
    }
skip_optional_kwonly:
    return_value = os_stat_impl(module, &path, dir_fd, follow_symlinks);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

PyDoc_STRVAR(os_lstat__doc__,
"lstat($module, /, path, *, dir_fd=None)\n"
"--\n"
"\n"
"Perform a stat system call on the given path, without following symbolic links.\n"
"\n"
"Like stat(), but do not follow symbolic links.\n"
"Equivalent to stat(path, follow_symlinks=False).");

#define OS_LSTAT_METHODDEF    \
    {"lstat", _PyCFunction_CAST(os_lstat), METH_FASTCALL|METH_KEYWORDS, os_lstat__doc__},

static PyObject *
os_lstat_impl(PyObject *module, path_t *path, int dir_fd);

static PyObject *
os_lstat(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 2
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), &_Py_ID(dir_fd), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", "dir_fd", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "lstat",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[2];
    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
    path_t path = PATH_T_INITIALIZE("lstat", "path", 0, 0);
    int dir_fd = DEFAULT_DIR_FD;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    if (!noptargs) {
        goto skip_optional_kwonly;
    }
    if (!FSTATAT_DIR_FD_CONVERTER(args[1], &dir_fd)) {
        goto exit;
    }
skip_optional_kwonly:
    return_value = os_lstat_impl(module, &path, dir_fd);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

PyDoc_STRVAR(os_access__doc__,
"access($module, /, path, mode, *, dir_fd=None, effective_ids=False,\n"
"       follow_symlinks=True)\n"
"--\n"
"\n"
"Use the real uid/gid to test for access to a path.\n"
"\n"
"  path\n"
"    Path to be tested; can be string, bytes, or a path-like object.\n"
"  mode\n"
"    Operating-system mode bitfield.  Can be F_OK to test existence,\n"
"    or the inclusive-OR of R_OK, W_OK, and X_OK.\n"
"  dir_fd\n"
"    If not None, it should be a file descriptor open to a directory,\n"
"    and path should be relative; path will then be relative to that\n"
"    directory.\n"
"  effective_ids\n"
"    If True, access will use the effective uid/gid instead of\n"
"    the real uid/gid.\n"
"  follow_symlinks\n"
"    If False, and the last element of the path is a symbolic link,\n"
"    access will examine the symbolic link itself instead of the file\n"
"    the link points to.\n"
"\n"
"dir_fd, effective_ids, and follow_symlinks may not be implemented\n"
"  on your platform.  If they are unavailable, using them will raise a\n"
"  NotImplementedError.\n"
"\n"
"Note that most operations will use the effective uid/gid, therefore this\n"
"  routine can be used in a suid/sgid environment to test if the invoking user\n"
"  has the specified access to the path.");

#define OS_ACCESS_METHODDEF    \
    {"access", _PyCFunction_CAST(os_access), METH_FASTCALL|METH_KEYWORDS, os_access__doc__},

static int
os_access_impl(PyObject *module, path_t *path, int mode, int dir_fd,
               int effective_ids, int follow_symlinks);

static PyObject *
os_access(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 5
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), &_Py_ID(mode), &_Py_ID(dir_fd), &_Py_ID(effective_ids), &_Py_ID(follow_symlinks), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", "mode", "dir_fd", "effective_ids", "follow_symlinks", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "access",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[5];
    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 2;
    path_t path = PATH_T_INITIALIZE("access", "path", 0, 0);
    int mode;
    int dir_fd = DEFAULT_DIR_FD;
    int effective_ids = 0;
    int follow_symlinks = 1;
    int _return_value;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 2, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    mode = _PyLong_AsInt(args[1]);
    if (mode == -1 && PyErr_Occurred()) {
        goto exit;
    }
    if (!noptargs) {
        goto skip_optional_kwonly;
    }
    if (args[2]) {
        if (!FACCESSAT_DIR_FD_CONVERTER(args[2], &dir_fd)) {
            goto exit;
        }
        if (!--noptargs) {
            goto skip_optional_kwonly;
        }
    }
    if (args[3]) {
        effective_ids = PyObject_IsTrue(args[3]);
        if (effective_ids < 0) {
            goto exit;
        }
        if (!--noptargs) {
            goto skip_optional_kwonly;
        }
    }
    follow_symlinks = PyObject_IsTrue(args[4]);
    if (follow_symlinks < 0) {
        goto exit;
    }
skip_optional_kwonly:
    _return_value = os_access_impl(module, &path, mode, dir_fd, effective_ids, follow_symlinks);
    if ((_return_value == -1) && PyErr_Occurred()) {
        goto exit;
    }
    return_value = PyBool_FromLong((long)_return_value);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#if defined(HAVE_TTYNAME)

PyDoc_STRVAR(os_ttyname__doc__,
"ttyname($module, fd, /)\n"
"--\n"
"\n"
"Return the name of the terminal device connected to \'fd\'.\n"
"\n"
"  fd\n"
"    Integer file descriptor handle.");

#define OS_TTYNAME_METHODDEF    \
    {"ttyname", (PyCFunction)os_ttyname, METH_O, os_ttyname__doc__},

static PyObject *
os_ttyname_impl(PyObject *module, int fd);

static PyObject *
os_ttyname(PyObject *module, PyObject *arg)
{
    PyObject *return_value = NULL;
    int fd;

    fd = _PyLong_AsInt(arg);
    if (fd == -1 && PyErr_Occurred()) {
        goto exit;
    }
    return_value = os_ttyname_impl(module, fd);

exit:
    return return_value;
}

#endif /* defined(HAVE_TTYNAME) */

#if defined(HAVE_CTERMID)

PyDoc_STRVAR(os_ctermid__doc__,
"ctermid($module, /)\n"
"--\n"
"\n"
"Return the name of the controlling terminal for this process.");

#define OS_CTERMID_METHODDEF    \
    {"ctermid", (PyCFunction)os_ctermid, METH_NOARGS, os_ctermid__doc__},

static PyObject *
os_ctermid_impl(PyObject *module);

static PyObject *
os_ctermid(PyObject *module, PyObject *Py_UNUSED(ignored))
{
    return os_ctermid_impl(module);
}

#endif /* defined(HAVE_CTERMID) */

PyDoc_STRVAR(os_chdir__doc__,
"chdir($module, /, path)\n"
"--\n"
"\n"
"Change the current working directory to the specified path.\n"
"\n"
"path may always be specified as a string.\n"
"On some platforms, path may also be specified as an open file descriptor.\n"
"  If this functionality is unavailable, using it raises an exception.");

#define OS_CHDIR_METHODDEF    \
    {"chdir", _PyCFunction_CAST(os_chdir), METH_FASTCALL|METH_KEYWORDS, os_chdir__doc__},

static PyObject *
os_chdir_impl(PyObject *module, path_t *path);

static PyObject *
os_chdir(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "chdir",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    path_t path = PATH_T_INITIALIZE("chdir", "path", 0, PATH_HAVE_FCHDIR);

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    return_value = os_chdir_impl(module, &path);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#if defined(HAVE_FCHDIR)

PyDoc_STRVAR(os_fchdir__doc__,
"fchdir($module, /, fd)\n"
"--\n"
"\n"
"Change to the directory of the given file descriptor.\n"
"\n"
"fd must be opened on a directory, not a file.\n"
"Equivalent to os.chdir(fd).");

#define OS_FCHDIR_METHODDEF    \
    {"fchdir", _PyCFunction_CAST(os_fchdir), METH_FASTCALL|METH_KEYWORDS, os_fchdir__doc__},

static PyObject *
os_fchdir_impl(PyObject *module, int fd);

static PyObject *
os_fchdir(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(fd), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"fd", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "fchdir",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    int fd;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!_PyLong_FileDescriptor_Converter(args[0], &fd)) {
        goto exit;
    }
    return_value = os_fchdir_impl(module, fd);

exit:
    return return_value;
}

#endif /* defined(HAVE_FCHDIR) */

PyDoc_STRVAR(os_chmod__doc__,
"chmod($module, /, path, mode, *, dir_fd=None, follow_symlinks=True)\n"
"--\n"
"\n"
"Change the access permissions of a file.\n"
"\n"
"  path\n"
"    Path to be modified.  May always be specified as a str, bytes, or a path-like object.\n"
"    On some platforms, path may also be specified as an open file descriptor.\n"
"    If this functionality is unavailable, using it raises an exception.\n"
"  mode\n"
"    Operating-system mode bitfield.\n"
"    Be careful when using number literals for *mode*. The conventional UNIX notation for\n"
"    numeric modes uses an octal base, which needs to be indicated with a ``0o`` prefix in\n"
"    Python.\n"
"  dir_fd\n"
"    If not None, it should be a file descriptor open to a directory,\n"
"    and path should be relative; path will then be relative to that\n"
"    directory.\n"
"  follow_symlinks\n"
"    If False, and the last element of the path is a symbolic link,\n"
"    chmod will modify the symbolic link itself instead of the file\n"
"    the link points to.\n"
"\n"
"It is an error to use dir_fd or follow_symlinks when specifying path as\n"
"  an open file descriptor.\n"
"dir_fd and follow_symlinks may not be implemented on your platform.\n"
"  If they are unavailable, using them will raise a NotImplementedError.");

#define OS_CHMOD_METHODDEF    \
    {"chmod", _PyCFunction_CAST(os_chmod), METH_FASTCALL|METH_KEYWORDS, os_chmod__doc__},

static PyObject *
os_chmod_impl(PyObject *module, path_t *path, int mode, int dir_fd,
              int follow_symlinks);

static PyObject *
os_chmod(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 4
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), &_Py_ID(mode), &_Py_ID(dir_fd), &_Py_ID(follow_symlinks), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", "mode", "dir_fd", "follow_symlinks", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "chmod",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[4];
    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 2;
    path_t path = PATH_T_INITIALIZE("chmod", "path", 0, PATH_HAVE_FCHMOD);
    int mode;
    int dir_fd = DEFAULT_DIR_FD;
    int follow_symlinks = 1;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 2, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    mode = _PyLong_AsInt(args[1]);
    if (mode == -1 && PyErr_Occurred()) {
        goto exit;
    }
    if (!noptargs) {
        goto skip_optional_kwonly;
    }
    if (args[2]) {
        if (!FCHMODAT_DIR_FD_CONVERTER(args[2], &dir_fd)) {
            goto exit;
        }
        if (!--noptargs) {
            goto skip_optional_kwonly;
        }
    }
    follow_symlinks = PyObject_IsTrue(args[3]);
    if (follow_symlinks < 0) {
        goto exit;
    }
skip_optional_kwonly:
    return_value = os_chmod_impl(module, &path, mode, dir_fd, follow_symlinks);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#if defined(HAVE_FCHMOD)

PyDoc_STRVAR(os_fchmod__doc__,
"fchmod($module, /, fd, mode)\n"
"--\n"
"\n"
"Change the access permissions of the file given by file descriptor fd.\n"
"\n"
"  fd\n"
"    The file descriptor of the file to be modified.\n"
"  mode\n"
"    Operating-system mode bitfield.\n"
"    Be careful when using number literals for *mode*. The conventional UNIX notation for\n"
"    numeric modes uses an octal base, which needs to be indicated with a ``0o`` prefix in\n"
"    Python.\n"
"\n"
"Equivalent to os.chmod(fd, mode).");

#define OS_FCHMOD_METHODDEF    \
    {"fchmod", _PyCFunction_CAST(os_fchmod), METH_FASTCALL|METH_KEYWORDS, os_fchmod__doc__},

static PyObject *
os_fchmod_impl(PyObject *module, int fd, int mode);

static PyObject *
os_fchmod(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 2
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(fd), &_Py_ID(mode), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"fd", "mode", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "fchmod",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[2];
    int fd;
    int mode;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 2, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    fd = _PyLong_AsInt(args[0]);
    if (fd == -1 && PyErr_Occurred()) {
        goto exit;
    }
    mode = _PyLong_AsInt(args[1]);
    if (mode == -1 && PyErr_Occurred()) {
        goto exit;
    }
    return_value = os_fchmod_impl(module, fd, mode);

exit:
    return return_value;
}

#endif /* defined(HAVE_FCHMOD) */

#if defined(HAVE_LCHMOD)

PyDoc_STRVAR(os_lchmod__doc__,
"lchmod($module, /, path, mode)\n"
"--\n"
"\n"
"Change the access permissions of a file, without following symbolic links.\n"
"\n"
"If path is a symlink, this affects the link itself rather than the target.\n"
"Equivalent to chmod(path, mode, follow_symlinks=False).\"");

#define OS_LCHMOD_METHODDEF    \
    {"lchmod", _PyCFunction_CAST(os_lchmod), METH_FASTCALL|METH_KEYWORDS, os_lchmod__doc__},

static PyObject *
os_lchmod_impl(PyObject *module, path_t *path, int mode);

static PyObject *
os_lchmod(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 2
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), &_Py_ID(mode), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", "mode", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "lchmod",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[2];
    path_t path = PATH_T_INITIALIZE("lchmod", "path", 0, 0);
    int mode;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 2, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    mode = _PyLong_AsInt(args[1]);
    if (mode == -1 && PyErr_Occurred()) {
        goto exit;
    }
    return_value = os_lchmod_impl(module, &path, mode);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#endif /* defined(HAVE_LCHMOD) */

#if defined(HAVE_CHFLAGS)

PyDoc_STRVAR(os_chflags__doc__,
"chflags($module, /, path, flags, follow_symlinks=True)\n"
"--\n"
"\n"
"Set file flags.\n"
"\n"
"If follow_symlinks is False, and the last element of the path is a symbolic\n"
"  link, chflags will change flags on the symbolic link itself instead of the\n"
"  file the link points to.\n"
"follow_symlinks may not be implemented on your platform.  If it is\n"
"unavailable, using it will raise a NotImplementedError.");

#define OS_CHFLAGS_METHODDEF    \
    {"chflags", _PyCFunction_CAST(os_chflags), METH_FASTCALL|METH_KEYWORDS, os_chflags__doc__},

static PyObject *
os_chflags_impl(PyObject *module, path_t *path, unsigned long flags,
                int follow_symlinks);

static PyObject *
os_chflags(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 3
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), &_Py_ID(flags), &_Py_ID(follow_symlinks), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", "flags", "follow_symlinks", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "chflags",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[3];
    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 2;
    path_t path = PATH_T_INITIALIZE("chflags", "path", 0, 0);
    unsigned long flags;
    int follow_symlinks = 1;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 3, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    if (!PyLong_Check(args[1])) {
        _PyArg_BadArgument("chflags", "argument 'flags'", "int", args[1]);
        goto exit;
    }
    flags = PyLong_AsUnsignedLongMask(args[1]);
    if (!noptargs) {
        goto skip_optional_pos;
    }
    follow_symlinks = PyObject_IsTrue(args[2]);
    if (follow_symlinks < 0) {
        goto exit;
    }
skip_optional_pos:
    return_value = os_chflags_impl(module, &path, flags, follow_symlinks);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#endif /* defined(HAVE_CHFLAGS) */

#if defined(HAVE_LCHFLAGS)

PyDoc_STRVAR(os_lchflags__doc__,
"lchflags($module, /, path, flags)\n"
"--\n"
"\n"
"Set file flags.\n"
"\n"
"This function will not follow symbolic links.\n"
"Equivalent to chflags(path, flags, follow_symlinks=False).");

#define OS_LCHFLAGS_METHODDEF    \
    {"lchflags", _PyCFunction_CAST(os_lchflags), METH_FASTCALL|METH_KEYWORDS, os_lchflags__doc__},

static PyObject *
os_lchflags_impl(PyObject *module, path_t *path, unsigned long flags);

static PyObject *
os_lchflags(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 2
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), &_Py_ID(flags), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", "flags", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "lchflags",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[2];
    path_t path = PATH_T_INITIALIZE("lchflags", "path", 0, 0);
    unsigned long flags;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 2, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    if (!PyLong_Check(args[1])) {
        _PyArg_BadArgument("lchflags", "argument 'flags'", "int", args[1]);
        goto exit;
    }
    flags = PyLong_AsUnsignedLongMask(args[1]);
    return_value = os_lchflags_impl(module, &path, flags);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#endif /* defined(HAVE_LCHFLAGS) */

#if defined(HAVE_CHROOT)

PyDoc_STRVAR(os_chroot__doc__,
"chroot($module, /, path)\n"
"--\n"
"\n"
"Change root directory to path.");

#define OS_CHROOT_METHODDEF    \
    {"chroot", _PyCFunction_CAST(os_chroot), METH_FASTCALL|METH_KEYWORDS, os_chroot__doc__},

static PyObject *
os_chroot_impl(PyObject *module, path_t *path);

static PyObject *
os_chroot(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "chroot",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    path_t path = PATH_T_INITIALIZE("chroot", "path", 0, 0);

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    return_value = os_chroot_impl(module, &path);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#endif /* defined(HAVE_CHROOT) */

#if defined(HAVE_FSYNC)

PyDoc_STRVAR(os_fsync__doc__,
"fsync($module, /, fd)\n"
"--\n"
"\n"
"Force write of fd to disk.");

#define OS_FSYNC_METHODDEF    \
    {"fsync", _PyCFunction_CAST(os_fsync), METH_FASTCALL|METH_KEYWORDS, os_fsync__doc__},

static PyObject *
os_fsync_impl(PyObject *module, int fd);

static PyObject *
os_fsync(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(fd), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"fd", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "fsync",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    int fd;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!_PyLong_FileDescriptor_Converter(args[0], &fd)) {
        goto exit;
    }
    return_value = os_fsync_impl(module, fd);

exit:
    return return_value;
}

#endif /* defined(HAVE_FSYNC) */

#if defined(HAVE_SYNC)

PyDoc_STRVAR(os_sync__doc__,
"sync($module, /)\n"
"--\n"
"\n"
"Force write of everything to disk.");

#define OS_SYNC_METHODDEF    \
    {"sync", (PyCFunction)os_sync, METH_NOARGS, os_sync__doc__},

static PyObject *
os_sync_impl(PyObject *module);

static PyObject *
os_sync(PyObject *module, PyObject *Py_UNUSED(ignored))
{
    return os_sync_impl(module);
}

#endif /* defined(HAVE_SYNC) */

#if defined(HAVE_FDATASYNC)

PyDoc_STRVAR(os_fdatasync__doc__,
"fdatasync($module, /, fd)\n"
"--\n"
"\n"
"Force write of fd to disk without forcing update of metadata.");

#define OS_FDATASYNC_METHODDEF    \
    {"fdatasync", _PyCFunction_CAST(os_fdatasync), METH_FASTCALL|METH_KEYWORDS, os_fdatasync__doc__},

static PyObject *
os_fdatasync_impl(PyObject *module, int fd);

static PyObject *
os_fdatasync(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(fd), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"fd", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "fdatasync",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    int fd;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!_PyLong_FileDescriptor_Converter(args[0], &fd)) {
        goto exit;
    }
    return_value = os_fdatasync_impl(module, fd);

exit:
    return return_value;
}

#endif /* defined(HAVE_FDATASYNC) */

#if defined(HAVE_CHOWN)

PyDoc_STRVAR(os_chown__doc__,
"chown($module, /, path, uid, gid, *, dir_fd=None, follow_symlinks=True)\n"
"--\n"
"\n"
"Change the owner and group id of path to the numeric uid and gid.\\\n"
"\n"
"  path\n"
"    Path to be examined; can be string, bytes, a path-like object, or open-file-descriptor int.\n"
"  dir_fd\n"
"    If not None, it should be a file descriptor open to a directory,\n"
"    and path should be relative; path will then be relative to that\n"
"    directory.\n"
"  follow_symlinks\n"
"    If False, and the last element of the path is a symbolic link,\n"
"    stat will examine the symbolic link itself instead of the file\n"
"    the link points to.\n"
"\n"
"path may always be specified as a string.\n"
"On some platforms, path may also be specified as an open file descriptor.\n"
"  If this functionality is unavailable, using it raises an exception.\n"
"If dir_fd is not None, it should be a file descriptor open to a directory,\n"
"  and path should be relative; path will then be relative to that directory.\n"
"If follow_symlinks is False, and the last element of the path is a symbolic\n"
"  link, chown will modify the symbolic link itself instead of the file the\n"
"  link points to.\n"
"It is an error to use dir_fd or follow_symlinks when specifying path as\n"
"  an open file descriptor.\n"
"dir_fd and follow_symlinks may not be implemented on your platform.\n"
"  If they are unavailable, using them will raise a NotImplementedError.");

#define OS_CHOWN_METHODDEF    \
    {"chown", _PyCFunction_CAST(os_chown), METH_FASTCALL|METH_KEYWORDS, os_chown__doc__},

static PyObject *
os_chown_impl(PyObject *module, path_t *path, uid_t uid, gid_t gid,
              int dir_fd, int follow_symlinks);

static PyObject *
os_chown(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 5
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), &_Py_ID(uid), &_Py_ID(gid), &_Py_ID(dir_fd), &_Py_ID(follow_symlinks), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", "uid", "gid", "dir_fd", "follow_symlinks", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "chown",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[5];
    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 3;
    path_t path = PATH_T_INITIALIZE("chown", "path", 0, PATH_HAVE_FCHOWN);
    uid_t uid;
    gid_t gid;
    int dir_fd = DEFAULT_DIR_FD;
    int follow_symlinks = 1;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 3, 3, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    if (!_Py_Uid_Converter(args[1], &uid)) {
        goto exit;
    }
    if (!_Py_Gid_Converter(args[2], &gid)) {
        goto exit;
    }
    if (!noptargs) {
        goto skip_optional_kwonly;
    }
    if (args[3]) {
        if (!FCHOWNAT_DIR_FD_CONVERTER(args[3], &dir_fd)) {
            goto exit;
        }
        if (!--noptargs) {
            goto skip_optional_kwonly;
        }
    }
    follow_symlinks = PyObject_IsTrue(args[4]);
    if (follow_symlinks < 0) {
        goto exit;
    }
skip_optional_kwonly:
    return_value = os_chown_impl(module, &path, uid, gid, dir_fd, follow_symlinks);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#endif /* defined(HAVE_CHOWN) */

#if defined(HAVE_FCHOWN)

PyDoc_STRVAR(os_fchown__doc__,
"fchown($module, /, fd, uid, gid)\n"
"--\n"
"\n"
"Change the owner and group id of the file specified by file descriptor.\n"
"\n"
"Equivalent to os.chown(fd, uid, gid).");

#define OS_FCHOWN_METHODDEF    \
    {"fchown", _PyCFunction_CAST(os_fchown), METH_FASTCALL|METH_KEYWORDS, os_fchown__doc__},

static PyObject *
os_fchown_impl(PyObject *module, int fd, uid_t uid, gid_t gid);

static PyObject *
os_fchown(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 3
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(fd), &_Py_ID(uid), &_Py_ID(gid), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"fd", "uid", "gid", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "fchown",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[3];
    int fd;
    uid_t uid;
    gid_t gid;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 3, 3, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    fd = _PyLong_AsInt(args[0]);
    if (fd == -1 && PyErr_Occurred()) {
        goto exit;
    }
    if (!_Py_Uid_Converter(args[1], &uid)) {
        goto exit;
    }
    if (!_Py_Gid_Converter(args[2], &gid)) {
        goto exit;
    }
    return_value = os_fchown_impl(module, fd, uid, gid);

exit:
    return return_value;
}

#endif /* defined(HAVE_FCHOWN) */

#if defined(HAVE_LCHOWN)

PyDoc_STRVAR(os_lchown__doc__,
"lchown($module, /, path, uid, gid)\n"
"--\n"
"\n"
"Change the owner and group id of path to the numeric uid and gid.\n"
"\n"
"This function will not follow symbolic links.\n"
"Equivalent to os.chown(path, uid, gid, follow_symlinks=False).");

#define OS_LCHOWN_METHODDEF    \
    {"lchown", _PyCFunction_CAST(os_lchown), METH_FASTCALL|METH_KEYWORDS, os_lchown__doc__},

static PyObject *
os_lchown_impl(PyObject *module, path_t *path, uid_t uid, gid_t gid);

static PyObject *
os_lchown(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 3
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), &_Py_ID(uid), &_Py_ID(gid), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", "uid", "gid", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "lchown",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[3];
    path_t path = PATH_T_INITIALIZE("lchown", "path", 0, 0);
    uid_t uid;
    gid_t gid;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 3, 3, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    if (!_Py_Uid_Converter(args[1], &uid)) {
        goto exit;
    }
    if (!_Py_Gid_Converter(args[2], &gid)) {
        goto exit;
    }
    return_value = os_lchown_impl(module, &path, uid, gid);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#endif /* defined(HAVE_LCHOWN) */

PyDoc_STRVAR(os_getcwd__doc__,
"getcwd($module, /)\n"
"--\n"
"\n"
"Return a unicode string representing the current working directory.");

#define OS_GETCWD_METHODDEF    \
    {"getcwd", (PyCFunction)os_getcwd, METH_NOARGS, os_getcwd__doc__},

static PyObject *
os_getcwd_impl(PyObject *module);

static PyObject *
os_getcwd(PyObject *module, PyObject *Py_UNUSED(ignored))
{
    return os_getcwd_impl(module);
}

PyDoc_STRVAR(os_getcwdb__doc__,
"getcwdb($module, /)\n"
"--\n"
"\n"
"Return a bytes string representing the current working directory.");

#define OS_GETCWDB_METHODDEF    \
    {"getcwdb", (PyCFunction)os_getcwdb, METH_NOARGS, os_getcwdb__doc__},

static PyObject *
os_getcwdb_impl(PyObject *module);

static PyObject *
os_getcwdb(PyObject *module, PyObject *Py_UNUSED(ignored))
{
    return os_getcwdb_impl(module);
}

#if defined(HAVE_LINK)

PyDoc_STRVAR(os_link__doc__,
"link($module, /, src, dst, *, src_dir_fd=None, dst_dir_fd=None,\n"
"     follow_symlinks=True)\n"
"--\n"
"\n"
"Create a hard link to a file.\n"
"\n"
"If either src_dir_fd or dst_dir_fd is not None, it should be a file\n"
"  descriptor open to a directory, and the respective path string (src or dst)\n"
"  should be relative; the path will then be relative to that directory.\n"
"If follow_symlinks is False, and the last element of src is a symbolic\n"
"  link, link will create a link to the symbolic link itself instead of the\n"
"  file the link points to.\n"
"src_dir_fd, dst_dir_fd, and follow_symlinks may not be implemented on your\n"
"  platform.  If they are unavailable, using them will raise a\n"
"  NotImplementedError.");

#define OS_LINK_METHODDEF    \
    {"link", _PyCFunction_CAST(os_link), METH_FASTCALL|METH_KEYWORDS, os_link__doc__},

static PyObject *
os_link_impl(PyObject *module, path_t *src, path_t *dst, int src_dir_fd,
             int dst_dir_fd, int follow_symlinks);

static PyObject *
os_link(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 5
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(src), &_Py_ID(dst), &_Py_ID(src_dir_fd), &_Py_ID(dst_dir_fd), &_Py_ID(follow_symlinks), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"src", "dst", "src_dir_fd", "dst_dir_fd", "follow_symlinks", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "link",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[5];
    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 2;
    path_t src = PATH_T_INITIALIZE("link", "src", 0, 0);
    path_t dst = PATH_T_INITIALIZE("link", "dst", 0, 0);
    int src_dir_fd = DEFAULT_DIR_FD;
    int dst_dir_fd = DEFAULT_DIR_FD;
    int follow_symlinks = 1;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 2, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &src)) {
        goto exit;
    }
    if (!path_converter(args[1], &dst)) {
        goto exit;
    }
    if (!noptargs) {
        goto skip_optional_kwonly;
    }
    if (args[2]) {
        if (!dir_fd_converter(args[2], &src_dir_fd)) {
            goto exit;
        }
        if (!--noptargs) {
            goto skip_optional_kwonly;
        }
    }
    if (args[3]) {
        if (!dir_fd_converter(args[3], &dst_dir_fd)) {
            goto exit;
        }
        if (!--noptargs) {
            goto skip_optional_kwonly;
        }
    }
    follow_symlinks = PyObject_IsTrue(args[4]);
    if (follow_symlinks < 0) {
        goto exit;
    }
skip_optional_kwonly:
    return_value = os_link_impl(module, &src, &dst, src_dir_fd, dst_dir_fd, follow_symlinks);

exit:
    /* Cleanup for src */
    path_cleanup(&src);
    /* Cleanup for dst */
    path_cleanup(&dst);

    return return_value;
}

#endif /* defined(HAVE_LINK) */

PyDoc_STRVAR(os_listdir__doc__,
"listdir($module, /, path=None)\n"
"--\n"
"\n"
"Return a list containing the names of the files in the directory.\n"
"\n"
"path can be specified as either str, bytes, or a path-like object.  If path is bytes,\n"
"  the filenames returned will also be bytes; in all other circumstances\n"
"  the filenames returned will be str.\n"
"If path is None, uses the path=\'.\'.\n"
"On some platforms, path may also be specified as an open file descriptor;\\\n"
"  the file descriptor must refer to a directory.\n"
"  If this functionality is unavailable, using it raises NotImplementedError.\n"
"\n"
"The list is in arbitrary order.  It does not include the special\n"
"entries \'.\' and \'..\' even if they are present in the directory.");

#define OS_LISTDIR_METHODDEF    \
    {"listdir", _PyCFunction_CAST(os_listdir), METH_FASTCALL|METH_KEYWORDS, os_listdir__doc__},

static PyObject *
os_listdir_impl(PyObject *module, path_t *path);

static PyObject *
os_listdir(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "listdir",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 0;
    path_t path = PATH_T_INITIALIZE("listdir", "path", 1, PATH_HAVE_FDOPENDIR);

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 0, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!noptargs) {
        goto skip_optional_pos;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
skip_optional_pos:
    return_value = os_listdir_impl(module, &path);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#if defined(MS_WINDOWS)

PyDoc_STRVAR(os_listdrives__doc__,
"listdrives($module, /)\n"
"--\n"
"\n"
"Return a list containing the names of drives in the system.\n"
"\n"
"A drive name typically looks like \'C:\\\\\'.");

#define OS_LISTDRIVES_METHODDEF    \
    {"listdrives", (PyCFunction)os_listdrives, METH_NOARGS, os_listdrives__doc__},

static PyObject *
os_listdrives_impl(PyObject *module);

static PyObject *
os_listdrives(PyObject *module, PyObject *Py_UNUSED(ignored))
{
    return os_listdrives_impl(module);
}

#endif /* defined(MS_WINDOWS) */

#if defined(MS_WINDOWS)

PyDoc_STRVAR(os_listvolumes__doc__,
"listvolumes($module, /)\n"
"--\n"
"\n"
"Return a list containing the volumes in the system.\n"
"\n"
"Volumes are typically represented as a GUID path.");

#define OS_LISTVOLUMES_METHODDEF    \
    {"listvolumes", (PyCFunction)os_listvolumes, METH_NOARGS, os_listvolumes__doc__},

static PyObject *
os_listvolumes_impl(PyObject *module);

static PyObject *
os_listvolumes(PyObject *module, PyObject *Py_UNUSED(ignored))
{
    return os_listvolumes_impl(module);
}

#endif /* defined(MS_WINDOWS) */

#if defined(MS_WINDOWS)

PyDoc_STRVAR(os_listmounts__doc__,
"listmounts($module, /, volume)\n"
"--\n"
"\n"
"Return a list containing mount points for a particular volume.\n"
"\n"
"\'volume\' should be a GUID path as returned from os.listvolumes.");

#define OS_LISTMOUNTS_METHODDEF    \
    {"listmounts", _PyCFunction_CAST(os_listmounts), METH_FASTCALL|METH_KEYWORDS, os_listmounts__doc__},

static PyObject *
os_listmounts_impl(PyObject *module, path_t *volume);

static PyObject *
os_listmounts(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(volume), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"volume", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "listmounts",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    path_t volume = PATH_T_INITIALIZE("listmounts", "volume", 0, 0);

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &volume)) {
        goto exit;
    }
    return_value = os_listmounts_impl(module, &volume);

exit:
    /* Cleanup for volume */
    path_cleanup(&volume);

    return return_value;
}

#endif /* defined(MS_WINDOWS) */

#if defined(MS_WINDOWS)

PyDoc_STRVAR(os__path_isdevdrive__doc__,
"_path_isdevdrive($module, /, path)\n"
"--\n"
"\n"
"Determines whether the specified path is on a Windows Dev Drive.");

#define OS__PATH_ISDEVDRIVE_METHODDEF    \
    {"_path_isdevdrive", _PyCFunction_CAST(os__path_isdevdrive), METH_FASTCALL|METH_KEYWORDS, os__path_isdevdrive__doc__},

static PyObject *
os__path_isdevdrive_impl(PyObject *module, path_t *path);

static PyObject *
os__path_isdevdrive(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "_path_isdevdrive",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    path_t path = PATH_T_INITIALIZE("_path_isdevdrive", "path", 0, 0);

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    return_value = os__path_isdevdrive_impl(module, &path);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#endif /* defined(MS_WINDOWS) */

#if defined(MS_WINDOWS)

PyDoc_STRVAR(os__getfullpathname__doc__,
"_getfullpathname($module, path, /)\n"
"--\n"
"\n");

#define OS__GETFULLPATHNAME_METHODDEF    \
    {"_getfullpathname", (PyCFunction)os__getfullpathname, METH_O, os__getfullpathname__doc__},

static PyObject *
os__getfullpathname_impl(PyObject *module, path_t *path);

static PyObject *
os__getfullpathname(PyObject *module, PyObject *arg)
{
    PyObject *return_value = NULL;
    path_t path = PATH_T_INITIALIZE("_getfullpathname", "path", 0, 0);

    if (!path_converter(arg, &path)) {
        goto exit;
    }
    return_value = os__getfullpathname_impl(module, &path);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#endif /* defined(MS_WINDOWS) */

#if defined(MS_WINDOWS)

PyDoc_STRVAR(os__getfinalpathname__doc__,
"_getfinalpathname($module, path, /)\n"
"--\n"
"\n"
"A helper function for samepath on windows.");

#define OS__GETFINALPATHNAME_METHODDEF    \
    {"_getfinalpathname", (PyCFunction)os__getfinalpathname, METH_O, os__getfinalpathname__doc__},

static PyObject *
os__getfinalpathname_impl(PyObject *module, path_t *path);

static PyObject *
os__getfinalpathname(PyObject *module, PyObject *arg)
{
    PyObject *return_value = NULL;
    path_t path = PATH_T_INITIALIZE("_getfinalpathname", "path", 0, 0);

    if (!path_converter(arg, &path)) {
        goto exit;
    }
    return_value = os__getfinalpathname_impl(module, &path);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#endif /* defined(MS_WINDOWS) */

#if defined(MS_WINDOWS)

PyDoc_STRVAR(os__getvolumepathname__doc__,
"_getvolumepathname($module, /, path)\n"
"--\n"
"\n"
"A helper function for ismount on Win32.");

#define OS__GETVOLUMEPATHNAME_METHODDEF    \
    {"_getvolumepathname", _PyCFunction_CAST(os__getvolumepathname), METH_FASTCALL|METH_KEYWORDS, os__getvolumepathname__doc__},

static PyObject *
os__getvolumepathname_impl(PyObject *module, path_t *path);

static PyObject *
os__getvolumepathname(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "_getvolumepathname",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    path_t path = PATH_T_INITIALIZE("_getvolumepathname", "path", 0, 0);

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    return_value = os__getvolumepathname_impl(module, &path);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#endif /* defined(MS_WINDOWS) */

#if defined(MS_WINDOWS)

PyDoc_STRVAR(os__path_splitroot__doc__,
"_path_splitroot($module, /, path)\n"
"--\n"
"\n"
"Removes everything after the root on Win32.");

#define OS__PATH_SPLITROOT_METHODDEF    \
    {"_path_splitroot", _PyCFunction_CAST(os__path_splitroot), METH_FASTCALL|METH_KEYWORDS, os__path_splitroot__doc__},

static PyObject *
os__path_splitroot_impl(PyObject *module, path_t *path);

static PyObject *
os__path_splitroot(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "_path_splitroot",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    path_t path = PATH_T_INITIALIZE("_path_splitroot", "path", 0, 0);

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    return_value = os__path_splitroot_impl(module, &path);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#endif /* defined(MS_WINDOWS) */

#if defined(MS_WINDOWS)

PyDoc_STRVAR(os__path_isdir__doc__,
"_path_isdir($module, /, path)\n"
"--\n"
"\n"
"Return true if the pathname refers to an existing directory.");

#define OS__PATH_ISDIR_METHODDEF    \
    {"_path_isdir", _PyCFunction_CAST(os__path_isdir), METH_FASTCALL|METH_KEYWORDS, os__path_isdir__doc__},

static PyObject *
os__path_isdir_impl(PyObject *module, PyObject *path);

static PyObject *
os__path_isdir(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "_path_isdir",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    PyObject *path;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    path = args[0];
    return_value = os__path_isdir_impl(module, path);

exit:
    return return_value;
}

#endif /* defined(MS_WINDOWS) */

#if defined(MS_WINDOWS)

PyDoc_STRVAR(os__path_isfile__doc__,
"_path_isfile($module, /, path)\n"
"--\n"
"\n"
"Test whether a path is a regular file");

#define OS__PATH_ISFILE_METHODDEF    \
    {"_path_isfile", _PyCFunction_CAST(os__path_isfile), METH_FASTCALL|METH_KEYWORDS, os__path_isfile__doc__},

static PyObject *
os__path_isfile_impl(PyObject *module, PyObject *path);

static PyObject *
os__path_isfile(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "_path_isfile",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    PyObject *path;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    path = args[0];
    return_value = os__path_isfile_impl(module, path);

exit:
    return return_value;
}

#endif /* defined(MS_WINDOWS) */

#if defined(MS_WINDOWS)

PyDoc_STRVAR(os__path_exists__doc__,
"_path_exists($module, /, path)\n"
"--\n"
"\n"
"Test whether a path exists.  Returns False for broken symbolic links");

#define OS__PATH_EXISTS_METHODDEF    \
    {"_path_exists", _PyCFunction_CAST(os__path_exists), METH_FASTCALL|METH_KEYWORDS, os__path_exists__doc__},

static PyObject *
os__path_exists_impl(PyObject *module, PyObject *path);

static PyObject *
os__path_exists(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "_path_exists",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    PyObject *path;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    path = args[0];
    return_value = os__path_exists_impl(module, path);

exit:
    return return_value;
}

#endif /* defined(MS_WINDOWS) */

#if defined(MS_WINDOWS)

PyDoc_STRVAR(os__path_islink__doc__,
"_path_islink($module, /, path)\n"
"--\n"
"\n"
"Test whether a path is a symbolic link");

#define OS__PATH_ISLINK_METHODDEF    \
    {"_path_islink", _PyCFunction_CAST(os__path_islink), METH_FASTCALL|METH_KEYWORDS, os__path_islink__doc__},

static PyObject *
os__path_islink_impl(PyObject *module, PyObject *path);

static PyObject *
os__path_islink(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "_path_islink",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    PyObject *path;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    path = args[0];
    return_value = os__path_islink_impl(module, path);

exit:
    return return_value;
}

#endif /* defined(MS_WINDOWS) */

PyDoc_STRVAR(os__path_normpath__doc__,
"_path_normpath($module, /, path)\n"
"--\n"
"\n"
"Basic path normalization.");

#define OS__PATH_NORMPATH_METHODDEF    \
    {"_path_normpath", _PyCFunction_CAST(os__path_normpath), METH_FASTCALL|METH_KEYWORDS, os__path_normpath__doc__},

static PyObject *
os__path_normpath_impl(PyObject *module, PyObject *path);

static PyObject *
os__path_normpath(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "_path_normpath",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    PyObject *path;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    path = args[0];
    return_value = os__path_normpath_impl(module, path);

exit:
    return return_value;
}

PyDoc_STRVAR(os_mkdir__doc__,
"mkdir($module, /, path, mode=511, *, dir_fd=None)\n"
"--\n"
"\n"
"Create a directory.\n"
"\n"
"If dir_fd is not None, it should be a file descriptor open to a directory,\n"
"  and path should be relative; path will then be relative to that directory.\n"
"dir_fd may not be implemented on your platform.\n"
"  If it is unavailable, using it will raise a NotImplementedError.\n"
"\n"
"The mode argument is ignored on Windows. Where it is used, the current umask\n"
"value is first masked out.");

#define OS_MKDIR_METHODDEF    \
    {"mkdir", _PyCFunction_CAST(os_mkdir), METH_FASTCALL|METH_KEYWORDS, os_mkdir__doc__},

static PyObject *
os_mkdir_impl(PyObject *module, path_t *path, int mode, int dir_fd);

static PyObject *
os_mkdir(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 3
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), &_Py_ID(mode), &_Py_ID(dir_fd), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", "mode", "dir_fd", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "mkdir",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[3];
    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
    path_t path = PATH_T_INITIALIZE("mkdir", "path", 0, 0);
    int mode = 511;
    int dir_fd = DEFAULT_DIR_FD;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 2, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    if (!noptargs) {
        goto skip_optional_pos;
    }
    if (args[1]) {
        mode = _PyLong_AsInt(args[1]);
        if (mode == -1 && PyErr_Occurred()) {
            goto exit;
        }
        if (!--noptargs) {
            goto skip_optional_pos;
        }
    }
skip_optional_pos:
    if (!noptargs) {
        goto skip_optional_kwonly;
    }
    if (!MKDIRAT_DIR_FD_CONVERTER(args[2], &dir_fd)) {
        goto exit;
    }
skip_optional_kwonly:
    return_value = os_mkdir_impl(module, &path, mode, dir_fd);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#if defined(HAVE_NICE)

PyDoc_STRVAR(os_nice__doc__,
"nice($module, increment, /)\n"
"--\n"
"\n"
"Add increment to the priority of process and return the new priority.");

#define OS_NICE_METHODDEF    \
    {"nice", (PyCFunction)os_nice, METH_O, os_nice__doc__},

static PyObject *
os_nice_impl(PyObject *module, int increment);

static PyObject *
os_nice(PyObject *module, PyObject *arg)
{
    PyObject *return_value = NULL;
    int increment;

    increment = _PyLong_AsInt(arg);
    if (increment == -1 && PyErr_Occurred()) {
        goto exit;
    }
    return_value = os_nice_impl(module, increment);

exit:
    return return_value;
}

#endif /* defined(HAVE_NICE) */

#if defined(HAVE_GETPRIORITY)

PyDoc_STRVAR(os_getpriority__doc__,
"getpriority($module, /, which, who)\n"
"--\n"
"\n"
"Return program scheduling priority.");

#define OS_GETPRIORITY_METHODDEF    \
    {"getpriority", _PyCFunction_CAST(os_getpriority), METH_FASTCALL|METH_KEYWORDS, os_getpriority__doc__},

static PyObject *
os_getpriority_impl(PyObject *module, int which, int who);

static PyObject *
os_getpriority(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 2
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(which), &_Py_ID(who), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"which", "who", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "getpriority",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[2];
    int which;
    int who;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 2, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    which = _PyLong_AsInt(args[0]);
    if (which == -1 && PyErr_Occurred()) {
        goto exit;
    }
    who = _PyLong_AsInt(args[1]);
    if (who == -1 && PyErr_Occurred()) {
        goto exit;
    }
    return_value = os_getpriority_impl(module, which, who);

exit:
    return return_value;
}

#endif /* defined(HAVE_GETPRIORITY) */

#if defined(HAVE_SETPRIORITY)

PyDoc_STRVAR(os_setpriority__doc__,
"setpriority($module, /, which, who, priority)\n"
"--\n"
"\n"
"Set program scheduling priority.");

#define OS_SETPRIORITY_METHODDEF    \
    {"setpriority", _PyCFunction_CAST(os_setpriority), METH_FASTCALL|METH_KEYWORDS, os_setpriority__doc__},

static PyObject *
os_setpriority_impl(PyObject *module, int which, int who, int priority);

static PyObject *
os_setpriority(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 3
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(which), &_Py_ID(who), &_Py_ID(priority), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"which", "who", "priority", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "setpriority",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[3];
    int which;
    int who;
    int priority;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 3, 3, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    which = _PyLong_AsInt(args[0]);
    if (which == -1 && PyErr_Occurred()) {
        goto exit;
    }
    who = _PyLong_AsInt(args[1]);
    if (who == -1 && PyErr_Occurred()) {
        goto exit;
    }
    priority = _PyLong_AsInt(args[2]);
    if (priority == -1 && PyErr_Occurred()) {
        goto exit;
    }
    return_value = os_setpriority_impl(module, which, who, priority);

exit:
    return return_value;
}

#endif /* defined(HAVE_SETPRIORITY) */

PyDoc_STRVAR(os_rename__doc__,
"rename($module, /, src, dst, *, src_dir_fd=None, dst_dir_fd=None)\n"
"--\n"
"\n"
"Rename a file or directory.\n"
"\n"
"If either src_dir_fd or dst_dir_fd is not None, it should be a file\n"
"  descriptor open to a directory, and the respective path string (src or dst)\n"
"  should be relative; the path will then be relative to that directory.\n"
"src_dir_fd and dst_dir_fd, may not be implemented on your platform.\n"
"  If they are unavailable, using them will raise a NotImplementedError.");

#define OS_RENAME_METHODDEF    \
    {"rename", _PyCFunction_CAST(os_rename), METH_FASTCALL|METH_KEYWORDS, os_rename__doc__},

static PyObject *
os_rename_impl(PyObject *module, path_t *src, path_t *dst, int src_dir_fd,
               int dst_dir_fd);

static PyObject *
os_rename(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 4
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(src), &_Py_ID(dst), &_Py_ID(src_dir_fd), &_Py_ID(dst_dir_fd), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"src", "dst", "src_dir_fd", "dst_dir_fd", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "rename",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[4];
    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 2;
    path_t src = PATH_T_INITIALIZE("rename", "src", 0, 0);
    path_t dst = PATH_T_INITIALIZE("rename", "dst", 0, 0);
    int src_dir_fd = DEFAULT_DIR_FD;
    int dst_dir_fd = DEFAULT_DIR_FD;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 2, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &src)) {
        goto exit;
    }
    if (!path_converter(args[1], &dst)) {
        goto exit;
    }
    if (!noptargs) {
        goto skip_optional_kwonly;
    }
    if (args[2]) {
        if (!dir_fd_converter(args[2], &src_dir_fd)) {
            goto exit;
        }
        if (!--noptargs) {
            goto skip_optional_kwonly;
        }
    }
    if (!dir_fd_converter(args[3], &dst_dir_fd)) {
        goto exit;
    }
skip_optional_kwonly:
    return_value = os_rename_impl(module, &src, &dst, src_dir_fd, dst_dir_fd);

exit:
    /* Cleanup for src */
    path_cleanup(&src);
    /* Cleanup for dst */
    path_cleanup(&dst);

    return return_value;
}

PyDoc_STRVAR(os_replace__doc__,
"replace($module, /, src, dst, *, src_dir_fd=None, dst_dir_fd=None)\n"
"--\n"
"\n"
"Rename a file or directory, overwriting the destination.\n"
"\n"
"If either src_dir_fd or dst_dir_fd is not None, it should be a file\n"
"  descriptor open to a directory, and the respective path string (src or dst)\n"
"  should be relative; the path will then be relative to that directory.\n"
"src_dir_fd and dst_dir_fd, may not be implemented on your platform.\n"
"  If they are unavailable, using them will raise a NotImplementedError.");

#define OS_REPLACE_METHODDEF    \
    {"replace", _PyCFunction_CAST(os_replace), METH_FASTCALL|METH_KEYWORDS, os_replace__doc__},

static PyObject *
os_replace_impl(PyObject *module, path_t *src, path_t *dst, int src_dir_fd,
                int dst_dir_fd);

static PyObject *
os_replace(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 4
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(src), &_Py_ID(dst), &_Py_ID(src_dir_fd), &_Py_ID(dst_dir_fd), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"src", "dst", "src_dir_fd", "dst_dir_fd", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "replace",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[4];
    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 2;
    path_t src = PATH_T_INITIALIZE("replace", "src", 0, 0);
    path_t dst = PATH_T_INITIALIZE("replace", "dst", 0, 0);
    int src_dir_fd = DEFAULT_DIR_FD;
    int dst_dir_fd = DEFAULT_DIR_FD;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 2, 2, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &src)) {
        goto exit;
    }
    if (!path_converter(args[1], &dst)) {
        goto exit;
    }
    if (!noptargs) {
        goto skip_optional_kwonly;
    }
    if (args[2]) {
        if (!dir_fd_converter(args[2], &src_dir_fd)) {
            goto exit;
        }
        if (!--noptargs) {
            goto skip_optional_kwonly;
        }
    }
    if (!dir_fd_converter(args[3], &dst_dir_fd)) {
        goto exit;
    }
skip_optional_kwonly:
    return_value = os_replace_impl(module, &src, &dst, src_dir_fd, dst_dir_fd);

exit:
    /* Cleanup for src */
    path_cleanup(&src);
    /* Cleanup for dst */
    path_cleanup(&dst);

    return return_value;
}

PyDoc_STRVAR(os_rmdir__doc__,
"rmdir($module, /, path, *, dir_fd=None)\n"
"--\n"
"\n"
"Remove a directory.\n"
"\n"
"If dir_fd is not None, it should be a file descriptor open to a directory,\n"
"  and path should be relative; path will then be relative to that directory.\n"
"dir_fd may not be implemented on your platform.\n"
"  If it is unavailable, using it will raise a NotImplementedError.");

#define OS_RMDIR_METHODDEF    \
    {"rmdir", _PyCFunction_CAST(os_rmdir), METH_FASTCALL|METH_KEYWORDS, os_rmdir__doc__},

static PyObject *
os_rmdir_impl(PyObject *module, path_t *path, int dir_fd);

static PyObject *
os_rmdir(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 2
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), &_Py_ID(dir_fd), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", "dir_fd", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "rmdir",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[2];
    Py_ssize_t noptargs = nargs + (kwnames ? PyTuple_GET_SIZE(kwnames) : 0) - 1;
    path_t path = PATH_T_INITIALIZE("rmdir", "path", 0, 0);
    int dir_fd = DEFAULT_DIR_FD;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!path_converter(args[0], &path)) {
        goto exit;
    }
    if (!noptargs) {
        goto skip_optional_kwonly;
    }
    if (!UNLINKAT_DIR_FD_CONVERTER(args[1], &dir_fd)) {
        goto exit;
    }
skip_optional_kwonly:
    return_value = os_rmdir_impl(module, &path, dir_fd);

exit:
    /* Cleanup for path */
    path_cleanup(&path);

    return return_value;
}

#if defined(HAVE_SYSTEM) && defined(MS_WINDOWS)

PyDoc_STRVAR(os_system__doc__,
"system($module, /, command)\n"
"--\n"
"\n"
"Execute the command in a subshell.");

#define OS_SYSTEM_METHODDEF    \
    {"system", _PyCFunction_CAST(os_system), METH_FASTCALL|METH_KEYWORDS, os_system__doc__},

static long
os_system_impl(PyObject *module, const Py_UNICODE *command);

static PyObject *
os_system(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(command), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"command", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "system",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    const Py_UNICODE *command = NULL;
    long _return_value;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!PyUnicode_Check(args[0])) {
        _PyArg_BadArgument("system", "argument 'command'", "str", args[0]);
        goto exit;
    }
    command = PyUnicode_AsWideCharString(args[0], NULL);
    if (command == NULL) {
        goto exit;
    }
    _return_value = os_system_impl(module, command);
    if ((_return_value == -1) && PyErr_Occurred()) {
        goto exit;
    }
    return_value = PyLong_FromLong(_return_value);

exit:
    /* Cleanup for command */
    PyMem_Free((void *)command);

    return return_value;
}

#endif /* defined(HAVE_SYSTEM) && defined(MS_WINDOWS) */

#if defined(HAVE_SYSTEM) && !defined(MS_WINDOWS)

PyDoc_STRVAR(os_system__doc__,
"system($module, /, command)\n"
"--\n"
"\n"
"Execute the command in a subshell.");

#define OS_SYSTEM_METHODDEF    \
    {"system", _PyCFunction_CAST(os_system), METH_FASTCALL|METH_KEYWORDS, os_system__doc__},

static long
os_system_impl(PyObject *module, PyObject *command);

static PyObject *
os_system(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 1
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(command), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"command", NULL};
    static _PyArg_Parser _parser = {
        .keywords = _keywords,
        .fname = "system",
        .kwtuple = KWTUPLE,
    };
    #undef KWTUPLE
    PyObject *argsbuf[1];
    PyObject *command = NULL;
    long _return_value;

    args = _PyArg_UnpackKeywords(args, nargs, NULL, kwnames, &_parser, 1, 1, 0, argsbuf);
    if (!args) {
        goto exit;
    }
    if (!PyUnicode_FSConverter(args[0], &command)) {
        goto exit;
    }
    _return_value = os_system_impl(module, command);
    if ((_return_value == -1) && PyErr_Occurred()) {
        goto exit;
    }
    return_value = PyLong_FromLong(_return_value);

exit:
    /* Cleanup for command */
    Py_XDECREF(command);

    return return_value;
}

#endif /* defined(HAVE_SYSTEM) && !defined(MS_WINDOWS) */

#if defined(HAVE_UMASK)

PyDoc_STRVAR(os_umask__doc__,
"umask($module, mask, /)\n"
"--\n"
"\n"
"Set the current numeric umask and return the previous umask.");

#define OS_UMASK_METHODDEF    \
    {"umask", (PyCFunction)os_umask, METH_O, os_umask__doc__},

static PyObject *
os_umask_impl(PyObject *module, int mask);

static PyObject *
os_umask(PyObject *module, PyObject *arg)
{
    PyObject *return_value = NULL;
    int mask;

    mask = _PyLong_AsInt(arg);
    if (mask == -1 && PyErr_Occurred()) {
        goto exit;
    }
    return_value = os_umask_impl(module, mask);

exit:
    return return_value;
}

#endif /* defined(HAVE_UMASK) */

PyDoc_STRVAR(os_unlink__doc__,
"unlink($module, /, path, *, dir_fd=None)\n"
"--\n"
"\n"
"Remove a file (same as remove()).\n"
"\n"
"If dir_fd is not None, it should be a file descriptor open to a directory,\n"
"  and path should be relative; path will then be relative to that directory.\n"
"dir_fd may not be implemented on your platform.\n"
"  If it is unavailable, using it will raise a NotImplementedError.");

#define OS_UNLINK_METHODDEF    \
    {"unlink", _PyCFunction_CAST(os_unlink), METH_FASTCALL|METH_KEYWORDS, os_unlink__doc__},

static PyObject *
os_unlink_impl(PyObject *module, path_t *path, int dir_fd);

static PyObject *
os_unlink(PyObject *module, PyObject *const *args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    #if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE)

    #define NUM_KEYWORDS 2
    static struct {
        PyGC_Head _this_is_not_used;
        PyObject_VAR_HEAD
        PyObject *ob_item[NUM_KEYWORDS];
    } _kwtuple = {
        .ob_base = PyVarObject_HEAD_INIT(&PyTuple_Type, NUM_KEYWORDS)
        .ob_item = { &_Py_ID(path), &_Py_ID(dir_fd), },
    };
    #undef NUM_KEYWORDS
    #define KWTUPLE (&_kwtuple.ob_base.ob_base)

    #else  // !Py_BUILD_CORE
    #  define KWTUPLE NULL
    #endif  // !Py_BUILD_CORE

    static const char * const _keywords[] = {"path", "dir_fd", NULL};
    static _PyArg_Parser _parser = {