python日志格式

def getLogger(fileName):
    name = LOG_DIR + fileName
    logger = logging.getLogger(name)
    
    handler = logging.FileHandler(name)
    formatter = logging.Formatter('%(asctime)s %(levelname)s %(name)s %(message)s')
    handler.setFormatter(formatter)
    
    logger.addHandler(handler)
    logger.setLevel(LOG_LEVEL)
    
    return logger