Eryk Sun added the comment:
This is a duplicate of issue 23864, i.e. only the "one-trick ponies" work:
>>> issubclass(array.array, abc.Sized)
True
>>> issubclass(array.array, abc.Iterable)
True
>>> issubclass(array.array, abc.Container)
True
----------
nosy: +eryksun
resolution: -> duplicate
stage: -> resolved
status: open -> closed
superseder: -> issubclass without registration only works for "one-trick pony"
collections ABCs.
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue25737>
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