deque is not a subclass of Sequence.

[Antoon Pardon]

Second tryal, I hope the formatting doesn't get messed up now

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.