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#103348https://github.com/python/cpython/pull/103348
Performance of typing._ProtocolMeta._get_protocol_attrs and isinstancehttps://github.com/python/cpython/issues/74690#top
#103348https://github.com/python/cpython/pull/103348
https://github.com/AlexWaygood
3.12only security fixeshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%223.12%22
performancePerformance or resource usagehttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22performance%22
stdlibStandard Library Python modules in the Lib/ directoryhttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22stdlib%22
topic-typinghttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22topic-typing%22
on May 29, 2017https://github.com/python/cpython/issues/74690#issue-1198974045
30505https://bugs.python.org/issue30505
@ilevkivskyihttps://github.com/ilevkivskyi
@orenbenkikihttps://github.com/orenbenkiki
gh-74690: typing: Don't unnecessarily call _get_protocol_attrs twice in _ProtocolMeta.__instancecheck__ #103141https://github.com/python/cpython/pull/103141
gh-74690: Micro-optimise typing._get_protocol_attrs #103152https://github.com/python/cpython/pull/103152
gh-74690: typing: Simplify and optimise _ProtocolMeta.__instancecheck__ #103159https://github.com/python/cpython/pull/103159
gh-74690: typing: Call _get_protocol_attrs and _callable_members_only at protocol class creation time, not during isinstance() checks #103160https://github.com/python/cpython/pull/103160
gh-74690: Further optimise typing._ProtocolMeta.__instancecheck__ #103280https://github.com/python/cpython/pull/103280
gh-74690: typing._ProtocolMeta.__instancecheck__: Exit early for protocols that only have callable members #103310https://github.com/python/cpython/pull/103310
gh-74690: Add more tests for runtime-checkable protocols #103347https://github.com/python/cpython/pull/103347
gh-74690: Document changes made to runtime-checkable protocols in 3.12 #103348https://github.com/python/cpython/pull/103348
[3.11] gh-74690: Add more tests for runtime-checkable protocols (GH-103347) #103350https://github.com/python/cpython/pull/103350
gh-74690: Don't set special protocol attributes on non-protocol subclasses of protocols #104622https://github.com/python/cpython/pull/104622
gh-74690: Make a typing test more resilient #104691https://github.com/python/cpython/pull/104691
gh-74690: Improve performance when testing against protocols with many attributes. #112157https://github.com/python/cpython/pull/112157
gh-74690: Optimise isinstance() and issubclass() calls against runtime-checkable protocols by avoiding costly super() calls #112708https://github.com/python/cpython/pull/112708
gh-74690: Avoid a costly type check where possible in _ProtocolMeta.__subclasscheck__ #112717https://github.com/python/cpython/pull/112717
AlexWaygoodhttps://github.com/AlexWaygood
3.12only security fixeshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%223.12%22
performancePerformance or resource usagehttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22performance%22
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