Basically None is commonly used all over in python for various reasons, as detailed in 18467.
In the original contribution the typical usage of None was not even described (optional named arguments, failed searches). So to simply to mention is existence is not really enough.
The NoneType is not even mentioned, only one of the NoneType operators ("is") is mentioned, and the casting rules/ambiguities (to type Bool) for NoneType were not mentioned. As before, all of these are important for writing tidy python code.
My thought is that I revert the page to the original, and you enhance the Null#Python entry to suit.