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From: Thomas Rachel <nutznetz-0c1b6768-bfa9-48d5-a470-7603bd3aa915@spamschutz.glglgl.de>
Newsgroups: comp.lang.python
Subject: Re: 'is not' or '!='
Date: Tue, 19 Aug 2014 11:53:04 +0200
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Am 18.08.2014 22:53 schrieb Marko Rauhamaa:

> Frankly, I don't know of any other object that is "==" to the None
> object except None itself, but such objects could possible exist.

class ImitatingNone(object):
     def __eq__(self, other):
         return True # is equal to everything else
         return other is None # is equal only to None
         return not(other) # is equal to everything which is falsey


Pick one.

Thomas