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64 lines
1.1 KiB
Python
64 lines
1.1 KiB
Python
#Equals and hash
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class Eq(object):
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def __init__(self, data):
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self.data = data
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def __eq__(self, other):
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return self.data == other.data
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class Ne(object):
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def __init__(self, data):
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self.data = data
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def __ne__(self, other):
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return self.data != other.data
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class Hash(object):
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def __init__(self, data):
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self.data = data
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def __hash__(self):
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return hash(self.data)
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class Unhashable1(object):
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__hash__ = None
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class EqOK1(Unhashable1):
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def __eq__(self, other):
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return False
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def __ne__(self, other):
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return True
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class Unhashable2(object):
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#Not the idiomatic way of doing it, but not uncommon either
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def __hash__(self):
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raise TypeError("unhashable object")
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class EqOK2(Unhashable2):
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def __eq__(self, other):
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return False
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def __ne__(self, other):
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return True
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class ReflectiveNotEquals(object):
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def __ne__(self, other):
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return not self == other
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class EqOK3(ReflectiveNotEquals, Unhashable1):
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def __eq__(self, other):
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return self.data == other.data
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