En Thu, 28 Jun 2007 11:38:56 -0300, A.T.Hofkamp <[EMAIL PROTECTED]> escribió:
> The point I intended to make was that having a default __hash__ method on > objects give weird results that not everybody may be aware of. > In addition, to get useful behavior of objects in sets one should > override > __hash__ anyway, so what is the point of having a default > object.__hash__ ? __hash__ and equality tests are used by the dictionary implementation, and the default implementation is OK for immutable objects. I like the fact that I can use almost anything as dictionary keys without much coding. This must always be true: (a==b) => (hash(a)==hash(b)), and the documentation for __hash__ and __cmp__ warns about the requisites (but __eq__ and the other rich-comparison methods are lacking the warning). -- Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
