Oops. The messed-up version wasn't supposed to be messed-up. Two mistakes on one line. Which kinda proves my point :)
I'd much rather use the count version than (1) or (2). (1) has the problem of having "incorrect" values the rest of the time in the loop and (2) is going to an extreme just to avoid an import of count. Your zipwithcount doesn't look as obvious as for n, a, b in zip(count(), A, B) but is still easier to read than for n, (a, b) in enumerate(zip(A, B)) -Janto -- http://mail.python.org/mailman/listinfo/python-list
