2517             self._ascending = not reverse

  2517             self._ascending = not reverse

  2518         else:

  2518         else:

  2519             if bool(self._ascending) == bool(reverse):

  2519             if bool(self._ascending) == bool(reverse):

  2520                 self.reverse()

  2520                 self.reverse()

  2521 

  2521 

  2522     def reverse(self):

  2528     def reverse(self):

  2523         self._list.reverse()

  2529         self._list.reverse()

  2524         if self._ascending is not None:

  2530         if self._ascending is not None:

  2525             self._ascending = not self._ascending

  2531             self._ascending = not self._ascending

  2526 

  2532