The None Object
Note that the 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 PyNone_Check() function for the
- 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
- Properly handle returning Py_None from within a C function (that is,
increment the reference count of None and return it.)