code: def string_from_seconds(seconds):
      '''
      Converts seconds into elapsed time string of form 
      
      (X days(s)?,)? HH:MM:SS.YY
      
      '''
      td = str(timedelta(seconds = seconds))
      parts = td.split('.')
      if len(parts) == 1:
          td = td+'.00'
      elif len(parts) == 2:
          td = '.'.join([parts[0],parts[1][:2]])
      return tf string_from_seconds(seconds):
      '''
      Converts seconds into elapsed time string of form 
      
      (X days(s)?,)? HH:MM:SS.YY
      
      '''
      td = str(timedelta(seconds = seconds))
      parts = td.split('.')
      if len(parts) == 1:
          td = td+'.00'
      elif len(parts) == 2:
          td = '.'.join([parts[0],parts[1][:2]])
      return td
docs: Converts seconds into elapsed time string of form 
      
      (X days(s)?,)? HH:MM:SS.YY