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Title: [3.15] gh-141510 Document and test frozendict class matching behaviour (GH-150799) by miss-islington · Pull Request #151701 · python/cpython · GitHub

Open Graph Title: [3.15] gh-141510 Document and test frozendict class matching behaviour (GH-150799) by miss-islington · Pull Request #151701 · python/cpython

X Title: [3.15] gh-141510 Document and test frozendict class matching behaviour (GH-150799) by miss-islington · Pull Request #151701 · python/cpython

Description: Frozendict has _Py_TPFLAGS_MATCH_SELF set so works correctly with the single-arg class matching. However it isn't documented in the list of classes this works with and it isn't tested. The test is some way below the other similar tests but anything else would need a large renumbering. (cherry picked from commit fd53ae1) Co-authored-by: da-woods dw-git@d-woods.co.uk Issue: gh-141510

Open Graph Description: Frozendict has _Py_TPFLAGS_MATCH_SELF set so works correctly with the single-arg class matching. However it isn't documented in the list of classes this works with and it isn't tested. The ...

X Description: Frozendict has _Py_TPFLAGS_MATCH_SELF set so works correctly with the single-arg class matching. However it isn't documented in the list of classes this works with and it isn't test...

Opengraph URL: https://github.com/python/cpython/pull/151701

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9e0ab2e gh-141510 Document and test frozendict class matching behaviour (GH-1… da-woods Jun 18, 2026 https://github.com/python/cpython/pull/151701/commits/9e0ab2e52a90e5cd95229c1660cbd07f51a32f51
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