ssl.py 文件源码

def sendfile(self, file, offset=0, count=None):
        """Send a file, possibly by using os.sendfile() if this is a
        clear-text socket.  Return the total number of bytes sent.
        """
        if self._sslobj is None:
            # os.sendfile() works with plain sockets only
            return super().sendfile(file, offset, count)
        else:
            return self._sendfile_use_send(file, offset, count)