sync.py 文件源码

def release_n(self, value=1):
        """
        Release ``value`` number of tokens at once.

        :returns: The same value as the last call to `BoundedSemaphore`'s
        :meth:`release` if :meth:`release` were called ``value`` times instead
        of the call to this method.
        """
        ret = None
        for _ in range(value):
            ret = self.release()
        return ret