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hombit/ContainsEverythingExceptNone.py

Last active December 26, 2016 08:52
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ContainsEverythingExceptNone.py
class ContainsEverythingExceptNone:
def __contains__(self, item):
return item is not None
c = ContainsEverythingExceptNone()
assert 57 in c
assert not None in c
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