[issue20848] 3.4 cherry-pick: b637064cc696 Improve enum subclass behavior

[STINNER Victor]

STINNER Victor added the comment:

Changeset b637064cc696 comes from issue #20653.

This changeset and this cherry-pick issue were discussed here:
https://mail.python.org/pipermail/python-dev/2014-February/132560.html

Antoine and Barry agree to cherry-pick b637064cc696 in Python 3.4.0.

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nosy: +haypo

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