Indeed this looks like 'ps' utility is not being found.. Weird, but it may be caused by not specifying a full path. I'll try a fix ASAP. On 2013-05-30 10:36 AM, "Sylvestre Ledru" <sylvestre at debian.org> wrote: >subprocess.Popen(['ps', '-o', "command=CMD", str(os.getpid())],