from itertools import * [ x for (x,s) in izip(iterable,repeat(set())) if (x not in s,s.add(x))[0] ]
Wow, that's evil! Pretty cool, but for the sake of readers of my code, I think I'll have to opt against it. ;)
STeVe -- http://mail.python.org/mailman/listinfo/python-list
