The ``None`` Object

.. highlightlang:: c

.. _noneobject:

The None Object

.. index:: 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 counts.

.. 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.)