Contains/equals

[Tim Chase]

On 08/19/10 12:42, Steven D'Aprano wrote:
> On Thu, 19 Aug 2010 11:00:03 -0400, Alex Hall wrote:
>
>>   def __eq__(self, obj):
>>    if self.a==obj.a and self.b==obj.b: return True
>>    return False
>
> That would be the same as:
>
>     def __eq__(self, obj):
>       return self.a==obj.a and self.b==obj.b

Or, if you have lots of attributes and 2.5+

   def __eq__(self, other):
     return all(
       getattr(self, attr) == getattr(other, attr)
       for attr in ['a', 'b', 'c', ...]
       )

or even something like

   def __eq__(self, other):
     return all(
       getattr(self, attr) == getattr(other, attr)
       for attr in dir(self)
       if not attr.startswith("__") and not attr.endswith("__")
       )



-tkc