.. highlightlang:: c

.. _noneobject:

The None Object

---------------

.. index:: object: None

Note that the :ctype:`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 :cfunc:`PyNone_Check` function for the

same reason.

.. cvar:: 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

   counts.

.. cmacro:: Py_RETURN_NONE

   Properly handle returning :cdata:`Py_None` from within a C function.

   .. versionadded:: 2.4