code: def format_option(self, option):
          
          # The help for each option consists of two parts:
          #   * the opt strings and metavars
          #   eg. ("-x", or "-fFILENAME, --file=FILENAME")
          #   * the user-supplied help string
          #   eg. ("turn on expert mode", "read data from FILENAME")
          #
          # If possible, we write both of these on the same line:
          #   -x    turn on expert mode
          #
          # But if the opt string list is too long, we put the help
          # string on a second line, indented to the same column it would
          # start in if it fit on the first line.
          #   -fFILENAME, --file=FILENAME
          #       read data from FILENAME
          result = []
          opts = self.option_strings[option]
          opt_width = self.help_position - self.current_indent - 2
          if len(opts) > opt_width:
              opts = "%*s%s\n" % (self.current_indent, "", opts)
              indent_first = self.help_position
          else: # start help on same line as opts
              opts = "%*s%-*s  " % (self.current_indent, "", opt_width, opts)
              indent_first = 0
          result.append(opts)
          if option.help:
              help_text = self.expand_default(option)
              # Everything is the same up through here
              help_lines = []
              for para in help_text.split("\n"):
                  help_lines.extend(textwrap.wrap(para, self.help_width))
              # Everything is the same after here
              result.append("%*s%s\n" % (
                  indent_first, "", help_lines[0]))
              result.extend(["%*s%s\n" % (self.help_position, "", line)
                  for line in help_lines[1:]])
          elif opts[-1] != "\n":
              result.append("\n")
          return "".join(result)
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