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gh-74690: typing: Call _get_protocol_attrs and _callable_members_only at protocol class creation time, not during isinstance() checks #103160

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Merged
AlexWaygood merged 9 commits into from
Apr 5, 2023
+14 −11
Merged

gh-74690: typing: Call _get_protocol_attrs and _callable_members_only at protocol class creation time, not during isinstance() checks #103160

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f15c64a
gh-74690: typing: Cache results of `_get_protocol_attrs` and `_callab…
AlexWaygood Mar 31, 2023
f3ec3db
Simplify and inline
AlexWaygood Apr 1, 2023
8e3c6f7
Use a metaclass instance method, not a classmethod on the class
AlexWaygood Apr 1, 2023
a34f700
Move to class-creation time
AlexWaygood Apr 1, 2023
4d05074
Use `__init__`, not `__new__`
AlexWaygood Apr 1, 2023
d3f9ebe
Add missing `super().__init__()` call, to be safe
AlexWaygood Apr 1, 2023
e8a6304
Merge branch 'main' into protocol-attrs-cache-1
AlexWaygood Apr 2, 2023
4816afa
Merge branch 'main' into protocol-attrs-cache-1
AlexWaygood Apr 5, 2023
08af615
Update Lib/typing.py
AlexWaygood Apr 5, 2023
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Update Lib/typing.py
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@AlexWaygood
AlexWaygood authored Apr 5, 2023
commit 08af61593d85db78efa1abef197f8d8e510a7913
1 change: 1 addition & 0 deletions Lib/typing.py
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Expand Up @@ -2028,6 +2028,7 @@ def __instancecheck__(cls, instance):
):
raise TypeError("Instance and class checks can only be used with"
" @runtime_checkable protocols")

if super().__instancecheck__(instance):
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return True

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