transport.py 文件源码

def get_banner(self):
        """
        Return the banner supplied by the server upon connect. If no banner is
        supplied, this method returns ``None``.

        :returns: server supplied banner (`str`), or ``None``.

        .. versionadded:: 1.13
        """
        if not self.active or (self.auth_handler is None):
            return None
        return self.auth_handler.banner