def rename_compute(self, old_compute, new_compute):
        """
        Change the label of a compute attached to the Bundle

        :parameter str old_compute: the current name of the compute options
            (must exist)
        :parameter str new_compute: the desired new name of the compute options
            (must not exist)
        :return: None
        :raises ValueError: if the new_compute is forbidden
        """
        # TODO: raise error if old_compute not found?

        self._check_label(new_compute)
        self._rename_label('compute', old_compute, new_compute)