Cmd.py 文件源码

def init_history(self):
        histfile = os.path.join(os.getcwd(), ".python_history")
        try:
            readline.read_history_file(histfile)
            readline.set_history_length(1000)
            readline.write_history_file(histfile)
        except (FileNotFoundError, PermissionError):
            readline.write_history_file(histfile)
            pass
        atexit.register(readline.write_history_file, histfile)