code: def pprint(self, seconds):
          
          return ("%d:%02d:%02d.%03d", reduce(lambda ll, b: divmod(ll[0], b) + ll[1:], [(seconds * 1000,), 1000, 60, 60]))
docs: Pretty Prints seconds as Hours:Minutes:Seconds.MilliSeconds
  
          :param seconds:  The time in seconds.