[issue8404] Set operations don't work for dictionary views

[Raymond Hettinger]

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

FWIW, this agrees with the specs in _abcoll which show KeysView and ItemsView as sets but not ValuesView.

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nosy: +rhettinger

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue8404>
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