def OldStyleQuery(self, ctx, sort_by_name=True):
    """Query with "old" query result format.

    See L{Query.Query} for arguments.

    """
    unknown = set(fdef.name for (fdef, _, _, _) in self._fields
                  if fdef.kind is not QFT_UNKNOWN)
    if unknown:
      raise errors.OpPrereqError("Unknown output fields selected: %s" %
                                 (utils.CommaJoin(unknown), ),
                                 errors.ECODE_INVAL)

    return [[value for (_, value) in row]
            for row in self.Query(ctx, sort_by_name=sort_by_name)]
dataset/ETHPy150Open ganeti/ganeti/lib/query.py/Query.OldStyleQuery/operator `==` -> `is not`