Get the point group associated with the structure.

        Returns:
            (Pointgroup): Point group for structure.

def get_point_group_symbol(self):
        """
        Get the point group associated with the structure.

        Returns:
            (Pointgroup): Point group for structure.
        """
        rotations = self._space_group_data["rotations"]
        # passing a 0-length rotations list to spglib can segfault
        if len(rotations) == 0:
            return '1'
        return spglib.get_pointgroup(rotations)[0].strip()