docs: def parse_arguments():
      """
      Parses all the command line arguments using argparse and returns them.
      """
      parser = argparse.ArgumentParser()
  
      parser.add_argument('file', metavar="FILE", nargs='+',
                          help='file to be made executable')
      parser.add_argument("-p", "--python", metavar="VERSION",
                          help="python version (2 or 3)")
      parser.add_argument('-v', '--version', action='version',
                          version='%(prog)s ' + __version__, help='show version')
      parser.add_argument('-r', '--recursive', action='store_true',
                          help='recursively iterate the directories')
  
      args = parser.parse_args()
      return args