[3.10] bpo-44606: Fix __instancecheck__ and __subclasscheck__ for the union type. (GH-27120)#27132
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miss-islington merged 1 commit intoJul 14, 2021
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[3.10] bpo-44606: Fix __instancecheck__ and __subclasscheck__ for the union type. (GH-27120)#27132miss-islington merged 1 commit intopython:3.10python/cpython:3.10from miss-islington:backport-8198905-3.10miss-islington/cpython:backport-8198905-3.10Copy head branch name to clipboard
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…type. (pythonGH-27120) * Fix issubclass() for None. E.g. issubclass(type(None), int | None) returns now True. * Fix issubclass() for virtual subclasses. E.g. issubclass(dict, int | collections.abc.Mapping) returns now True. * Fix crash in isinstance() if the check for one of items raises exception. (cherry picked from commit 8198905) Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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@serhiy-storchaka: Status check is done, and it's a success ✅ . |
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@serhiy-storchaka: Status check is done, and it's a success ✅ . |
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E.g. issubclass(type(None), int | None) returns now True.
E.g. issubclass(dict, int | collections.abc.Mapping) returns now True.
(cherry picked from commit 8198905)
Co-authored-by: Serhiy Storchaka storchaka@gmail.com
https://bugs.python.org/issue44606