The None Object

Python documentation

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 and is

immortal

.

Changed in version 3.12:

Py_None

is

immortal

.

Py_RETURN_NONE

¶

Return

Py_None

from a function.