Hi John, > Everything is possible with list comprehensions!
>>> [x for z in a for y in z for x in y] > [1, 2, 3, 31, 32, 4, 5, 6, 7, 71, 72, 8, 9] impressive! But in the general case can you do the same job as reduce in a list comprehension? ie apply an operation to the first two elements of a sequence and replace them with the result, then repeat until the list becomes a single value? I cannot think of a way to do that in the generaln case with a comprehension. I'd be interested to see if there is a recipe for that. Alan G _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
