Terry Reedy wrote:
it is normal to look for special methods on the class (and superclasses)
> of an object rather than starting with the object itself.
I suspect there was a deliberate change to correct an anomaly, though this might have been done as part of some other change.
It's a necessary consequence of the fact that new-style classes are also instances. Without it, there would be an ambiguity as to whether a special method defined the behaviour of instances of a class or of the class object itself. It also increases efficiency, because for those special methods that correspond to C-level type slots, you only have to look in the type slot to find an implementation of the method, rather than having to look in the instance dict first. -- Greg -- http://mail.python.org/mailman/listinfo/python-list
