readline.py 文件源码

def after_command(self, cmd):
        super(ReadlineAlikeReader, self).after_command(cmd)
        if self.more_lines is None:
            # Force single-line input if we are in raw_input() mode.
            # Although there is no direct way to add a \n in this mode,
            # multiline buffers can still show up using various
            # commands, e.g. navigating the history.
            try:
                index = self.buffer.index("\n")
            except ValueError:
                pass
            else:
                self.buffer = self.buffer[:index]
                if self.pos > len(self.buffer):
                    self.pos = len(self.buffer)