New submission from Armin Ronacher: _abcoll.py references intertools.chain but doesn't import it. This breaks Set subclasses. Additionally the abstract base classes don't provide the right hand operator callbacks or how you want to call them. So __add__ is there but __radd__ not which for example leads to the problem that "foo() + set()" works but "set() + foo" not.
And the third oddity in that module is that Callable defines an abstract method for __contains__ which makes no sense but none for __call__. __________________________________ Tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue2226> __________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
