On Sep 7, 3:13�pm, "Gabriel Genellina" <[EMAIL PROTECTED]> wrote: > En Sun, 07 Sep 2008 14:30:09 -0300, Mensanator <[EMAIL PROTECTED]> escribi�: > > > > > Actualy, I already get the behaviour I want. sum([1,None]) > > throws an exception. I don't see why sum([]) doesn't throw > > an exception also (I understand that behaviour is by design, > > I'm merely pointing out that the design doesn't cover every > > situation). > [...] > > Exactly. That's why I would prefer sum([]) to raise an > > exception instead of giving a false positive. > > The built in behavior can't be good for every usage. Nobody prevents you from > defining yoru own function tailored to your own specs, like this: > > def strict_sum(items): > � � items = iter(items) > � � try: > � � � � first = items.next() > � � except StopIteration: > � � � � raise ValueError, "strict_sum with empty argument" > � � return sum(items, first) > > Tweak as needed. Based on other posts I believe your Python skills are enough > to write it on your own, so I don't see why you're complaining so hard about > the current behavior.
I'm not complaining about the behaviour anymore, I just don't like being told I'm wrong when I'm not. But I think I've made my point, so there's no point in harping on this anymore. > > -- > Gabriel Genellina -- http://mail.python.org/mailman/listinfo/python-list
