On Mar 8, 9:43 am, malkarouri <[EMAIL PROTECTED]> wrote: > Hi everyone, > > I have an algorithm in which I need to use a loop over a queue on > which I push values within the loop, sort of: > > while not(q.empty()): > x = q.get() > #process x to get zero or more y's > #for each y: > q.put(y) > > The easiest thing I can do is use a list as a queue and a normal for > loop: > > q = [a, b, c] > > for x in q: > #process x to get zero or more y's > q.append(y) > > It makes me feel kind of uncomfortable, though it seems to work. The > question is: is it guaranteed to work, or does Python expect that you > wouldn't change the list in the loop? > > Regards, > > Muhammad Alkarouri
I think it's a bad practice to get into. Did you intend to do the "process" step again over the added variables? If not I would set a new variable, based on your awful naming convention, let's call it z. Then use z.append(y) within the for loop and after you are out of your for loop, q.append(z). -- http://mail.python.org/mailman/listinfo/python-list