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

[Guido van Rossum]

Guido van Rossum <guido at python.org> added the comment:

No, I consider this is a documentation problem. I don't recall why the docs say that (I don't even know if they still say that or whether Martijn misread them), but IMO this should not be changed.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue23864>
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