code: def space_row(left, right, filler=' ', total_width=-1):
      
      left = str(left)
      right = str(right)
      filler = str(filler)[:1]
  
      if total_width < 0:
          spacing = - total_width
      else:
          spacing = total_width - len(left) - len(right)
  
      return left + filler * spacing + right
docs: space the data in a row with optional filling
  
      Arguments
      ---------
      left : str, to be aligned left
      right : str, to be aligned right
      filler : str, default ' '.
          must be of length 1
      total_width : int, width of line.
          if negative number is specified,
          then that number of spaces is used between the left and right text
  
      Returns
      -------
      str