On 19 Mrz 2006, [EMAIL PROTECTED] wrote: > I had a feeling I could do this: > >>>> foo > [[1, 2, 3], [1, 2, 3], [1, 2, 3]] >>>> for c in foo: > ... for b in c: > ... print b > ... > 1 > 2 > 3 > 1 > 2 > 3 > 1 > 2 > 3 > > Using a list comprehension, as it seemed to me like I was saying: b
I wouldn't use a list comprehension here since you don't use the list returned. A list comprehension is used if you need a list not to iterate over a list and e.g print the elemenst. > for c in foo, but I can't see how to do this. Ultimately I want to > sum each number and produce a total. I know how to do this as above, > but was wondering if there is an alternative / better way? Use e.g. reduce: .>>> reduce(lambda s, L: s + sum(L), foo, 0) .18 Karl -- Please do *not* send copies of replies to me. I read the list _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
