def registerProducer(self, producer, streaming):
        """
        Call this to register producer for standard input.

        If there is no standard input producer.stopProducing() will
        be called immediately.
        """
        if 0 not in self.pipes:
            self.pipes[0].registerProducer(producer, streaming)
        else:
            producer.stopProducing()
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/internet/process.py/Process.registerProducer/operator `in` -> `not in`