[issue47143] Add types.copy_class() which updates closures

[STINNER Victor]

STINNER Victor <vstinner at python.org> added the comment:

The stdlib types module looks like a better place for such new function, rather than the functools module.

The types module documentation starts with: "This module defines utility functions to assist in dynamic creation of new types."
https://docs.python.org/3/library/types.html

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title: Add functools.copy_class() which updates closures -> Add types.copy_class() which updates closures

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue47143>
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