test_logging.py

import logging
import datetime


def setlog():
    logging.basicConfig(level=logging.WARNING,
                        format='%(asctime)s %(name)-4s %(levelname)-8s %(message)s',
                        datefmt='%m-%d %H:%M',
                        handlers=[logging.FileHandler('my.log', 'w', 'utf-8'), ],
                        )

    print(logging.currentframe)
    logging.debug("debug")
    logging.info("info")
    logging.warning("warning")
    logging.error("error")
    logging.critical("critical")


def setlog2():

    # 基礎設定
    logging.basicConfig(level=logging.DEBUG,
                        format='%(asctime)s %(name)-12s %(levelname)-8s %(message)s',
                        datefmt='%m-%d %H:%M',
                        handlers=[logging.FileHandler('my.log', 'w', 'utf-8'), ])

    # 定義 handler 輸出 sys.stderr
    console = logging.StreamHandler()
    console.setLevel(logging.INFO)
    # 設定輸出格式
    formatter = logging.Formatter('%(name)-12s: %(levelname)-8s %(message)s')
    # handler 設定輸出格式
    console.setFormatter(formatter)
    # 加入 hander 到 root logger
    logging.getLogger('').addHandler(console)

    # root 輸出
    logging.info('道可道非常道')

    # 定義另兩個 logger
    logger1 = logging.getLogger('myapp.area1')
    logger2 = logging.getLogger('myapp.area2')

    logger1.debug('天高地遠')
    logger1.info('天龍地虎')
    logger2.warning('天發殺機')
    logger2.error('地動天搖')


if __name__=="__main__":
    # setlog()
    setlog2()