code: def _prof(self, key):
          '''Get _Prof object.
          '''
          p = self._profs.get(key, None)
          if not p:
              self._profs[key] = p = _Prof()
          return f _prof(self, key):
          '''Get _Prof object.
          '''
          p = self._profs.get(key, None)
          if not p:
              self._profs[key] = p = _Prof()
          return p
docs: Get _Prof object.