>>>>> "MZ" == Moshe Zadka <moshez@math.huji.ac.il> writes: MZ> I disagree: you agree that if you add a pad argument when the MZ> lists are all the same size it doesn't matter (if you don't MZ> agree with this, you don't agree with the PEP). Now, when MZ> there is only one list, the lists are all the same size. QED. Bingo. -Barry