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All permutations of a list in Python (See related posts)

This function returns a list containing all permutations of the input list. Does not work directly on strings -- explode the string into a list of characters to do that.

def perm(l):
    sz = len(l)
    if sz <= 1:
        return [l]
    return [p[:i]+[l[0]]+p[i:] for i in xrange(sz) for p in perm(l[1:])]
to python math permutation by brewbuck on Tue Feb 20 18:46:04 -0500 2007

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