[issue25864] collections.abc.Mapping should include a __reversed__ that raises TypeError

[Emanuel Barry]

Emanuel Barry added the comment:

You need to do 'import collections.abc' as abc is a submodule of collections, and is not imported from a bare 'import collections'.

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nosy: +ebarry

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue25864>
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