On Thu, Jun 12, 2014 at 1:40 PM, Vincent Vande Vyvre <vincent.vandevy...@swing.be> wrote: > Le 12/06/2014 05:12, hito koto a écrit : > >> Hello,all >> I'm first time, >> >> I want to make a while statement which can function the same x.pop () and >> without the use of pop、how can i to do? >> >> i want to change this is code: >> >> def foo(x): >> y = [] >> while x !=[]: >> y.append(x.pop()) >> return y > > Something like that : > > def foo(x): > return reversed(x)
That doesn't do the same thing, though. Given a list x, the original function will empty that list and return a new list in reverse order, but yours will return a reversed iterator over the original list without changing it. This is more accurate, but still not identical, and probably not what the OP's teacher is looking for: def foo(x): y = x[::-1] x[:] = [] return y If the mutation of x is unimportant, it can simply be: def foo(x): return x[::-1] ChrisA -- https://mail.python.org/mailman/listinfo/python-list