"Pichai Asokan" <asokanp at virtusa.com> wrote in message news:bed1f696.0207200546.2bca2e34 at posting.google.com... > I thought > board = [[-1] * 3 ]*3 > should give me a list of 9 elements; > but ... List 'multiplication' is NOT associative. You get list with three references to (one) list with three references to int -1. TJR