docs: def _parse_args():
      """
      Parse the command line for options
      """
      parser = optparse.OptionParser()
      parser.add_option(
          '--user', dest='user_install', action='store_true', default=False,
          help='install in user site package (requires Python 2.6 or later)')
      parser.add_option(
          '--download-base', dest='download_base', metavar="URL",
          default=DEFAULT_URL,
          help='alternative URL from where to download the setuptools package')
      parser.add_option(
          '--insecure', dest='downloader_factory', action='store_const',
          const=lambda: download_file_insecure, default=get_best_downloader,
          help='Use internal, non-validating downloader'
      )
      options, args = parser.parse_args()
      # positional arguments are ignored
      return options