On Sun, 13 Feb 2000, thomas wrote: > Hi, > > I got huge lists I want to merge, but the good old new_list = list1 + > list2 seems to be slow. Any hints? Try list1.extend(list2) if you want in-place merging. no-other-good-ideas-ly y'rs, Z. PS .extend is a 1.5.2 addition.