[issue27275] KeyError thrown by optimised collections.OrderedDict.popitem()

[Zachary Ware]

Zachary Ware added the comment:

Attaching test case from #28014 here since this issue looks close enough to that one to be caused by the same thing.

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nosy: +zach.ware
Added file: http://bugs.python.org/file44459/simple_lru.py

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