| .. 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.) |