time.py 文件源码

def subtract_timedelta(self, delta):
        """
        Remove timedelta duration from the instance.

        :param delta: The timedelta instance
        :type delta: datetime.timedelta

        :rtype: Time
        """
        if delta.days:
            raise TypeError('Cannot timedelta with days to Time.')

        return self.subtract(
            seconds=delta.seconds,
            microseconds=delta.microseconds
        )