On Sun, May 8, 2016 at 9:54 AM, Jim Dodgen <j...@dodgen.us> wrote: > The empty token is needed but useless, it is arg[0] most people just repeat > the program name
Far from useless. It's how a process learns its own name, and yes, repeating the image name is the most common way to provide that. > One other observation it looks as Popen behaves the same way as my fork > exec would Indeed. In fact, I would strongly recommend never using an explicit fork/exec from Python - always use subprocess or equivalent. On non-Unix platforms, fork/exec may not be available, but subprocess can use other methods of invoking programs. ChrisA -- https://mail.python.org/mailman/listinfo/python-list