On Oct 5, 10:27 am, Abandoned <[EMAIL PROTECTED]> wrote: > Hi.. > I have a problem.. > list1=[11, 223, 334, 4223...] 1 million element > list2=[22,223,4223,2355...] 500.000 element > > I want to difference list1 to list2 but order very importent.. > > My result must be: > list3=[11,334,...] > > I do this use FOR easly but the speed very imported for me. I want to > the fastest method please help me. > > I'm sorry my bad english. > > King regards..
Research the "set" data type. :) -- http://mail.python.org/mailman/listinfo/python-list
