[issue23864] doc: issubclass without registration only works for "one-trick pony" collections ABCs.

[Raymond Hettinger]

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


New changeset 89edd18779e382c5fa7f57722b0b897a907ed2c4 by Miss Islington (bot) in branch '3.10':
bpo-45024 and bpo-23864: Document how interface testing works with the collections ABCs (GH-28218) (GH-28266)
https://github.com/python/cpython/commit/89edd18779e382c5fa7f57722b0b897a907ed2c4


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