bpo-45024 and bpo-23864: Document how interface testing works with the collections ABCs#28218
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rhettinger
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Thanks @rhettinger for the PR 🌮🎉.. I'm working now to backport this PR to: 3.10. |
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Sorry @rhettinger, I had trouble checking out the |
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Thanks @rhettinger for the PR 🌮🎉.. I'm working now to backport this PR to: 3.10. |
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GH-28266 is a backport of this pull request to the 3.10 branch. |
miss-islington
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…e collections ABCs (pythonGH-28218) (cherry picked from commit 62fa613) Co-authored-by: Raymond Hettinger <rhettinger@users.noreply.github.com>
rhettinger
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I think this resolves bpo 35190 as well. |
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Maybe not - there's a comment at the end there to register array.array as a Sequence. |
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To resolve long standing confusion, I've enumerated the three principal ways to test interfaces using the collections ABCs. For each, there are provided examples and explanation. Also added footnotes to the ABC table to indicate which ABCs can use hasattr() logic rather than direct subclassing or registration.
https://bugs.python.org/issue45024