[Python-Dev] == on object tests identity in 3.x
ethan at stoneleaf.us
Tue Jul 8 04:29:17 CEST 2014
On 07/07/2014 06:18 PM, Andreas Maier wrote:
> Am 2014-07-08 01:50, schrieb Ethan Furman:
>> I never add __eq__ to my classes until I come upon a place where I need to check if two instances of those classes are
>> 'equal', for whatever I need equal to mean in that case.
> With that strategy, you would not be hurt if the default implementation raised an exception in case the two objects are
> not identical. ;-)
Yes, I would. Not identical means not equal until I say otherwise. Raising an exception instead of returning False
(for __eq__) would be horrible.
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