[issue5402] MutableMapping code smell (see OrderedDict)

[Raymond Hettinger]

Raymond Hettinger <rhettinger at users.sourceforge.net> added the comment:

UserDict is not gone.  DictMixin is now mutable mapping.

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assignee:  -> rhettinger
priority:  -> low

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue5402>
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