[issue36457] functools.singledispatchmethod interacts poorly with subclasses

[Tim Mitchell]

Tim Mitchell <tim.mitchell at seequent.com> added the comment:

I've come up with a version that does not require a base class.

Seems a bit hacky as the descriptor __get__ method now modifies the class to put the dispatch table in place the first time the method is accessed.

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Added file: https://bugs.python.org/file50688/singledispatchmethod.py

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