Dave Benjamin wrote: > Mike Meyer wrote: >> Dave Benjamin <[EMAIL PROTECTED]> writes: >> >>>Python is actually quite consistent in this regard: methods that >>>modify an object in-place return None; >> >> Um, no. list.pop comes to mind as an immediate counterexample. It may >> be the only one... > > I'm sure there are counterexamples... maybe 95% is too optimistic. > Anyone want to volunteer to compile some stats? ;)
Well, that's because list.pop mutates a list _and_ returns something meaningful (not the list itself). One could modify the above statement about consistency to say that methods which modify an object and do not return a directed value do not return the object which was mutated, but rather return None. So list.append returns None, but list.pop returns the element popped. -- Erik Max Francis && [EMAIL PROTECTED] && http://www.alcyone.com/max/ San Jose, CA, USA && 37 20 N 121 53 W && AIM erikmaxfrancis Nobody's interested in sweetness and light. -- Hedda Hopper -- http://mail.python.org/mailman/listinfo/python-list
