Hub.py 文件源码

def init_readline(self):
        "Initialize the readline functionality to enable console history."
        if self.hub_history_file is not None:
            readline.set_history_length(self.hub_history_length)
            try:
                readline.read_history_file(self.hub_history_file)
            except IOError:
                pass

            atexit.register(readline.write_history_file, self.hub_history_file)