[EMAIL PROTECTED] wrote: > 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. :) > Probably not a very helpful suggestion given that ordering is stated to be very important.
regards Steve -- Steve Holden +1 571 484 6266 +1 800 494 3119 Holden Web LLC/Ltd http://www.holdenweb.com Skype: holdenweb http://del.icio.us/steve.holden Sorry, the dog ate my .sigline so I couldn't cat it -- http://mail.python.org/mailman/listinfo/python-list
