Aaron Brady wrote:
But wait, is that true assignment?
It's assignment, but it's not really copying an object. No new objects are being created -- rather, some of the items within the lhs object are being rebound to already-existing objects. It would be possible for the lhs object's __setitem__ method to be defined so that it created new objects, but then it would be the __setitem__ method doing that, not the assignment statement itself. None of this is really relevant anyway, since the assignment that call-by-value implies is always to a bare local name, and there is no way that kind of assignment can ever create a new object. -- Greg -- http://mail.python.org/mailman/listinfo/python-list
