Can global variable be passed into Python function?

Marko Rauhamaa marko at pacujo.net
Sat Mar 1 18:29:41 CET 2014


Michael Torrie <torriem at 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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