order independent hash?

[Peter Otten]

Neal Becker wrote:

> I like to hash a list of words (actually, the command line args of my
> program) in such a way that different words will create different hash,
> but not sensitive to the order of the words.  Any ideas?

You mean a typical python hash value which would be /likely/ to differ for 
different lists and /guaranteed/ to be equal for equal lists is not good 
enough? Because that would be easy:

args = sys.argv[1:]
hash(tuple(sorted(args))) # consider duplicate args
hash(frozenset(args)) # ignore duplicate args