[John Henry] > If I have a bunch of sets: > > a = set((1, 2, 3)) > b = set((2, 3)) > c = set((1, 3)) > .... > > What's the cleanest way to say: > > 1) Give me a list of the items that are in all of the sets? (3 in the > above example)
list(a & b & c) > 2) Give me a list of the items that are not in all of the sets? (1,2 in > the above example) list((a | b | c) - (a & b & c)) -- http://mail.python.org/mailman/listinfo/python-list