gistfile1.py

    def cmd_restart(self):
        """
            Restart qtile using the execute command.
        """
        try:
            for group in self.groupMap:
                for window in self.groupMap[group].windows:
                    print window
        except Exception as e:
            print e
        
        self.cmd_execute(sys.executable, [sys.executable] + sys.argv)