[issue12543] `issubclass(collections.deque, collections.Sequence) == False`

[R. David Murray]

R. David Murray <rdmurray at bitdance.com> added the comment:

Maybe they don't support all Sequence operations?  They don't support slicing, certainly, but I can't tell from the collections ABC docs if Sequence is required to support slicing.

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nosy: +r.david.murray, rhettinger

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