blob: b84a16a28ead5669261536a64ae8cb7cfaab655c [file] [log] [blame]
.. highlight:: c
.. _noneobject:
The ``None`` Object
.. index:: pair: object; None
Note that the :c:type:`PyTypeObject` for ``None`` is not directly exposed in the
Python/C API. Since ``None`` is a singleton, testing for object identity (using
``==`` in C) is sufficient. There is no :c:func:`PyNone_Check` function for the
same reason.
.. c:var:: PyObject* Py_None
The Python ``None`` object, denoting lack of value. This object has no methods.
It needs to be treated just like any other object with respect to reference
.. c:macro:: Py_RETURN_NONE
Properly handle returning :c:data:`Py_None` from within a C function (that is,
increment the reference count of ``None`` and return it.)