def inputAffectingOutput(self, output):
        # TODO: Is this really a singular thing?
        # TODO: Guessing is a bit too implicit for my tastes!
        for input in self.inputs():
            if input.dataPacketType == output.dataPacketType:
                return input
        return None
Open blob file for streaming.
dataset/ETHPy150Open andrew-gardner/dependsworkflow/depends/depends_node.py/DagNode.inputAffectingOutput--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/api/blobstore/file_blob_storage.py/FileBlobStorage.OpenBlob