Bryan Olson wrote: > There's no such thing; you'd have to define it first. Are duplicates > significant? Order?
That's all trivial isn't it? A string is a set of pairs (i,c) where i is an integer number, the index, with 0<=i<j<=card(string)-1, for (i,c), (j,d) in string and c is a character. Since there is a natural order on integer numbers we can induce this order on the string, so that it is an ordered set. For representation purposes we can omit i since i is simply the position of c in the sequence. Same holds for lists, tuples or other sequences. Kay -- http://mail.python.org/mailman/listinfo/python-list
