ush.py 文件源码

def run(self):
        try:
            print("Welcome to ush-{}.  Type 'help' for help.  ^D to exit".format(VERSION))
            while True:
                line = Ush.prompt().strip()
                if line:
                    tokens = line.split()
                    cmd = tokens[0]
                    if cmd in self._handlers:
                        handler = self._handlers[cmd]
                        try:
                            handler.handle_command(tokens[1:])
                        except Exception as e:
                            sys.print_exception(e)
                    else:
                        print("Unknown command: {}".format(cmd))
        except Exception as e:
            print(e)