[issue45024] Cannot extend collections ABCs with protocol

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:


New changeset 62fa613f6a6e872723505ee9d56242c31a654a9d by Raymond Hettinger in branch 'main':
bpo-45024 and bpo-23864: Document how interface testing works with the collections ABCs (GH-28218)
https://github.com/python/cpython/commit/62fa613f6a6e872723505ee9d56242c31a654a9d


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<https://bugs.python.org/issue45024>
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