Sequence traversal

[Skip Montanaro]

    Sven> List traversal is elegant in python! - But what if I want to step
    Sven> through two sequences in parallel?

map() is your friend!  Try:

    l1 = list("Names ")
    l2 = [4,2,1,5,3,9]
    for i, j in map(None, l1, l2):
        print i, j

This can be extended for any number of lists.  map(None, ...) will generate
a list of n-tuples, where n is the number of lists you feed it.

Skip Montanaro | http://www.mojam.com/
skip at mojam.com | http://www.musi-cal.com/
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