Thank you! I've been banging my head against the wall! Chris M.
"Alex Martelli" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Newsfeeds <[EMAIL PROTECTED]> wrote: > >> Hello All, >> >> Could anyone tell me why this code produces the output it does? > ... >> gridSystemId = [[None]*columns]*rows > > You've made gridSystemID a list of `rows` references to the SAME "inner" > list, so the behavior you observe is the only possible one. > > If you want copies instead, ASK for copies...: > > gridSystemId = [ [None]*columns for x in xrange(rows) ] > > > Alex > ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- -- http://mail.python.org/mailman/listinfo/python-list
