[issue26557] dictviews methods not present on shelve objects

[Roundup Robot]

Roundup Robot added the comment:

New changeset 2b4bfef0d54a by Raymond Hettinger in branch '2.7':
Issue #26557:  Note that mapping view methods are not present in UserDict or shelves.
https://hg.python.org/cpython/rev/2b4bfef0d54a

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nosy: +python-dev

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue26557>
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