"Steven Bethard" <[EMAIL PROTECTED]> wrote in message >>>def __eq__(self, other):
"""x.__eq__(y) <==> x == y""" return (isinstance(other, self.__class__)
Since an instance of a subclass is an instance of a parent class, but not vice versa, I believe you introduce here the assymetry you verify below.
Yes, the asymmetry is due to isinstance.
I believe what Peter Otten was pointing out is that calling __eq__ is not the same as using ==, presumably because the code for == checks the types of the two objects and returns False if they're different before the __eq__ code ever gets called.
Steve -- http://mail.python.org/mailman/listinfo/python-list
