7.1.2 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 same reason.
- 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.
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