[LAD] Python assistance - threads (my favorite)

Hi, In a bit of a time crunch. Can anyone tell me how to do this properly? I would like to have a threaded timer to run "cmd" after 5 seconds. However cmd is normally triggered like this: os.system(cmd) But there seems to be an issue with calling os.system(cmd) from subprocess.popen. ========================== def do_popen(self, *args): subprocess.Popen(args[0], shell=True) def other function cmd = 'spd-say -t female2 "' + audioText + '"' args = shlex.split(cmd) # Add 5 second delay for first view to allow existing speech processes to finish print "do_speech: ",delay if delay: print "do_speech: delayed start" t = threading.Timer(5.0, self.do_popen(cmd)) t.start() else : print "do_speech: immediate start" self.do_popen(cmd) ====================== FYI, it is for an accessibility wizard that Daniel and I have been working on. Cheers. -- Patrick Shirkey Boost Hardware Ltd. "ZPE is not about creating something from nothing: It is about using the zero point of a wave as a means to transform other forms of potential energy like magnetic flux, heat, or particle spin into usable energy in such a way that entropy appears to be reversed."