python/log/日誌

日誌消息,寫入日誌文件,同時輸出到屏幕

import logging
logger = logging.getLogger(__name__)    #當前用戶
logger.setLevel(level = logging.DEBUG) # 級別
handler = logging.FileHandler("log.txt") #文件
handler.setLevel(logging.DEBUG) #

formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)

console = logging.StreamHandler()  # 在前前屏幕輸出
console.setLevel(logging.DEBUG)

logger.addHandler(handler)
logger.addHandler(console)

logger.info("Start print log")
logger.debug("Do something")
logger.warning("Something maybe fail.")
logger.info("Finish")