Michael Torrie <torr...@gmail.com>: > No, '==' works fine no matter what objects you assign to your state > variables.
Well, it doesn't since
>>> a = float("nan")
>>> a is a
True
>>> a == a
False
More generally, it depends on how the __eq__ method has been implemented
for the class. You might even (foolishly) define a class such that:
>>> a == b
False
>>> a != b
False
The "is" operator is immune to such modality.
Marko
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