2011/5/18 Ethan Furman <et...@stoneleaf.us>: > In Python 3 inequality comparisons became forbidden. > > --> 123 < [1, 2, 3] > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > TypeError: unorderable types: int() < list() > > However, equality comparisons are still allowed > > --> 123 == [1, 2, 3] > False > > But you can't mix them (inequality wins) > > --> 123 <= [1, 2, 3] > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > TypeError: unorderable types: int() <= list() > > I realize this is probably a Py4000 change if it happens at all, but does > this make sense? Shouldn't an attempt to compare to unlike objects be a > TypeError, just like trying to order them is?
No. Ordering for types which completely different doesn't make any sense, but equality testing is just fine because it has an obvious answer: no. -- Regards, Benjamin _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
