On 12/25/2011 08:38 PM, Nobody wrote:
nothing should compare equal to None except for None itself, so "x is None"
> and "x == None" shouldn't produce different results unless there's a
> bug in the comparison method.
not necessarily, for example:
import random
class OddClass:
def __eq__(self, other):
return [True, False][random.randint(0, 1)]
x = OddClass()
print x == None
print x == None
print x == None
print x == None
print x == None
Now, whether doing something like that is advisable or not, that's a
different question; however nothing in python states that you couldn't
have something that compare equal to None whether there is a bug or not
in the comparison method.
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