logger.py 文件源码

def init(cls):
    cls.logger = logging.getLogger(_LOGGER_NAME)
    logger = cls.logger
    levelname = os.environ.get('JUBAKIT_LOG_LEVEL', None)
    if not levelname:
      # Surpress printing logs by default.
      logger.addHandler(cls._NullHandler())
      logger.setLevel(CRITICAL)
      return

    # Setup logger from environment variable.
    for lvl in (DEBUG, INFO, WARNING, ERROR, CRITICAL):
      if logging.getLevelName(lvl) == levelname:
        setup_logger(lvl)
        break
    else:
      setup_logger(INFO)
      logger.warning('invalid JUBAKIT_LOG_LEVEL (%s) specified; continue with INFO', levelname)