results.py 文件源码

def _raise_if_unacknowledged(self, property_name):
        """Raise an exception on property access if unacknowledged."""
        if not self.__acknowledged:
            raise InvalidOperation("A value for %s is not available when "
                                   "the write is unacknowledged. Check the "
                                   "acknowledged attribute to avoid this "
                                   "error." % (property_name,))