python has lists x = [1,2,3]
and sets x = {1,2,3}
plus all set operations see: https://docs.python.org/3.7/library/stdt...-frozenset
aslo see itertools for permutations, combinations and product
and sets x = {1,2,3}
plus all set operations see: https://docs.python.org/3.7/library/stdt...-frozenset
aslo see itertools for permutations, combinations and product