new_contents: # Import python libs
  import optparse
  
  def parse():
      '''
      Parse the command line input
      '''
      parser = optparse.OptionParser()
      parser.add_option(
              '--theme',
              dest='theme',
              default='std',
              help='Set the color theme to use from std or bright')
      options, args = parser.parse_args()
      return options.__dict__
  
subject: Add command line parsing