[issue24434] ItemsView.__contains__ does not mimic dict_items

[Xiang Zhang]

Xiang Zhang added the comment:

After reading issue4296, I agree with Serhiy's point on the second issue. Right now, (1, math.nan) in ItemsView({1: math.nan}) returns false which seems not acceptable.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue24434>
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