Hi all Just wondering if someone could clarify this behaviour for me, please? >>> tasks = [[]]*6 >>> tasks [[], [], [], [], [], []] >>> tasks[0].append(1) >>> tasks [[1], [1], [1], [1], [1], [1]] Well what I was expecting to end up with was something like: >>> tasks [[1], [], [], [], [], []] I got this example from page 38 of Beginning Python. Regards Gabriel