Hello! I like the idea of retaining my original questions by creating a proxy list, but I wasn't able to understand (find) the proxy list:
Chris Fuller wrote: > from random import choice > questions = [ [i,j] for i in range(1,10) for j in range(1,10) ] > false_answers = [] > > choices = range(len(questions)) This I don't understand: len(questions) simply gives 81; range(len(questions)) counts them all up: 0,1,2...80. > > while choices: > proxyq = choice(choices) here choice(choices) picks ONE item out of choices (e.g. 56) and assigns it to proxyq > del choices[choices.index(proxyq)] here the item (56) just assigned to proxyq gets removed from choices (question: why not use pop() for these last two steps?) > > q = questions[proxyq] here q is assigned to item 56, i.e. [7, 3], out of questions (which contains all 81 possible questions). Now, because we are operating in a while loop, 81 item are generated and 81 items are accordingly picked out of the questions list, all this without repetition of items.. If I am right (am I?) with my interpretation, then I still don't understand how/where we generated a proxy list... I think we are just running a while loop without having generated a list out of its ouput!?? Cheers for a short comment! Guba _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor