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Groups > comp.lang.python > #106623

deque is not a subclass of Sequence.

From Antoon Pardon <antoon.pardon@rece.vub.ac.be>
Newsgroups comp.lang.python
Subject deque is not a subclass of Sequence.
Date 2016-04-07 10:49 +0200
Message-ID <mailman.7.1460018974.2253.python-list@python.org> (permalink)
References <57061F13.90100@rece.vub.ac.be>

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Playing around with the collections and collections.abc modules in
python3.4 I stumbled upon the following: >>> from collections.abc import
Sequence >>> from collections import deque >>> isinstance(list(),
Sequence) True >>> isinstance(deque(), Sequence) False >>> This seems
strange to me. As far as I understand, the documentation indicates there
is no reason why deque shouldn't be a subclass of Sequence. Am I missing
something or can this be considered a bug? -- Antoon.

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deque is not a subclass of Sequence. Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2016-04-07 10:49 +0200

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