Re: [Tutor] Bothersome NoneType Error for a List object
Osemeka Osuagwu wrote: templist = templist.append(prime) The append method operates in place, and returns None. It doesn't return a list: py mylist = [] py x = mylist.append(42) py x is None True py mylist [42] Replace that line with just templist.append(prime) -- Steven ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Bothersome NoneType Error for a List object
On 04/07/12 17:01, Osemeka Osuagwu wrote: lcm = reduce(lambda x, y: x*y, templist) #my first lambda expression! (multiply all members of templist Congratulations :-) But you could have done: import operator lcm = reduce(operator.mul, templist) instead. -- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/ ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor