def _create_redirectors(self):
        if self.stdout_stream and self.stderr_stream:
            if self.stream_redirector:
                self.stream_redirector.stop()
            self.stream_redirector = self._redirector_class(
                self.stdout_stream, self.stderr_stream, loop=self.loop)
        else:
            self.stream_redirector = None
dataset/ETHPy150Open circus-tent/circus/circus/watcher.py/Watcher._create_redirectors/operator `or` -> `and`