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[3.10] bpo-44654: Refactor and clean up the union type implementation (GH-27196) (GH-27219)

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(cherry picked from commit 0fd27375ca)
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Miss Islington (bot) 2021-07-17 14:10:21 -07:00 • committed by GitHub
parent 2d055ce132
commit 03aad3049d
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8 changed files with 85 additions and 120 deletions
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Lib/typing.py
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@ -1181,7 +1181,7 @@ class _UnionGenericAlias(_GenericAlias, _root=True):
return Union[params]
def __eq__(self, other):
if not isinstance(other, _UnionGenericAlias):
if not isinstance(other, (_UnionGenericAlias, types.Union)):
return NotImplemented
return set(self.__args__) == set(other.__args__)