code: def _import_config(config_file):
      
      # get config file path
      jocker_lgr.debug('config file is: {0}'.format(config_file))
      # append to path for importing
      try:
          jocker_lgr.debug('importing config...')
          with open(config_file, 'r') as c:
              return yaml.safe_load(c.read())
      except IOError as ex:
          jocker_lgr.error(str(ex))
          raise RuntimeError('cannot access config file')
      except yaml.parser.ParserError as ex:
          jocker_lgr.error('invalid yaml file: {0}'.format(ex))
          raise RuntimeError('invalid yaml file')
docs: returns a configuration object
  
      :param string config_file: path to config file