On Mon, Jan 9, 2012 at 2:45 AM, Yigit Turgut <y.turgut at gmail.com> wrote: > job1 = job_server.submit(test1,()) > job2 = job_server.submit(test2()) The first of these passes test1 and an empty tuple as arguments to submit(). The second calls test2 with no arguments, then passes its return value to submit(), which is not what you want to do. Chris Angelico