On Sun, Aug 12, 2012 at 8:46 AM, eryksun <eryksun at gmail.com> wrote: > > t = threading.Thread(target=factorsOfInteger, args=(n, qin, qout)).start() Sorry I need to proofread better. That should be the following: t = threading.Thread(target=factorsOfInteger, args=(n, qin, qout)) t.start()