code: def read_config():
      
      parser = SafeConfigParser()
      parser.read(CONFIG_PATH)
      if not parser.has_section('flickr'):
          logger.info('Seems you don\'t set API key, please enter the following informations: ')
          enter_api_key(parser)
      global api_key, api_secret
      api_key = parser.get('flickr', 'API_KEY')
      api_secret = parser.get('flickr', 'API_SECRET')
docs: Read the config from CONFIG_PATH(Default: ~/.grabflickr.conf)
      This will prompt for API key and secret if it not exists.
      After, it sets the global variable `api_key` and `api_secret`.