Method fileno

python/python3/tornado/iostream.py:285–287

Returns the file descriptor for this stream.

(self)

        self._closed = False

    def fileno(self) -> Union[int, ioloop._Selectable]:
        """Returns the file descriptor for this stream."""
        raise NotImplementedError()

    def close_fd(self) -> None:
        """Closes the file underlying this stream.