1689         Multiple nested topics may be active at a time.

  1689         Multiple nested topics may be active at a time.

  1690 

  1690 

  1691         All topics should be marked closed by setting pos to None at

  1691         All topics should be marked closed by setting pos to None at

  1692         termination.

  1692         termination.

  1693         '''

  1693         '''

  1694         progress = self.makeprogress(topic, unit, total)

  1696         progress = self.makeprogress(topic, unit, total)

  1695         if pos is not None:

  1697         if pos is not None:

  1696             progress.update(pos, item=item)

  1698             progress.update(pos, item=item)

  1697         else:

  1699         else:

  1698             progress.complete()

  1700             progress.complete()