Andrés Marzal <amar...@lsi.uji.es> added the comment: I've implemented a LinkedList as a MutableSequence and __iadd__, which is inherited from MutableSequence, does not perform as expected. The _abcoll.py file contains this:
class MutableSequence(Sequence): ... def __iadd__(self, values): self.extend(values) The method __iadd__ does not return anything, buy it should return self. Right now, the sentence aLinkedList += [1, 2] sets the value of aLinkedList to None. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue6037> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com