The None Object

.. highlightlang:: c

.. 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