Python logger模块应用示例

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同时输出到文件和终端，并设置不同的输出级别

#! /usr/bin/env python# coding: utf-8import osimport loggingclass MyLogger(logging.Logger):    def __init__(self, filename='log/test.log'):        # super(MyLogger, self).__init__(filename)        logging.Logger.__init__(self, filename)        # 设置日志格式        fmtHandler = logging.Formatter('%(asctime)s [%(filename)s:%(lineno)s][%(levelname)s] %(message)s')        # 终端log输出流设置        try:            consoleHd = logging.StreamHandler()            consoleHd.setLevel(logging.ERROR)            consoleHd.setFormatter(fmtHandler)            self.addHandler(consoleHd)        except Exception as reason:            self.error("%s" % reason)        # 设置log文件        try:            os.makedirs(os.path.dirname(filename))        except Exception as reason:            pass        try:            fileHd = logging.FileHandler(filename)            fileHd.setLevel(logging.INFO)            fileHd.setFormatter(fmtHandler)            self.addHandler(fileHd)        except Exception as reason:            self.error("%s" % reason)                    return        # 设置回滚日志,每个日志最大10M,最多备份5个日志        try:            rtfHandler = logging.BaseRotatingHandler(                            filename, maxBytes=10*1024*1024, backupCount=5)        except Exception as reason:            self.error("%s" % reason)        else:            self.addHandler(rtfHandler)def main():    logfile1 = 'log/test1.log'    logger1 = MyLogger(logfile1)    logger1.debug("debug msg")    logger1.info("info msg")    logger1.warning("warning msg")    logger1.error("error msg")    logger1.critical("critical msg")    logfile2 = 'log/test2.log'    logger1 = MyLogger(logfile2)    logger1.debug("debug msg")    logger1.info("info msg")    logger1.warning("warning msg")    logger1.error("error msg")    logger1.critical("critical msg")if __name__ == '__main__':    main()

本例封装了类，在类中进行了统一的配置

终端输出

2017-02-11 10:32:01,532 [mylogger.py:52][ERROR] error msg2017-02-11 10:32:01,532 [mylogger.py:53][CRITICAL] critical msg2017-02-11 10:32:01,533 [mylogger.py:60][ERROR] error msg2017-02-11 10:32:01,533 [mylogger.py:61][CRITICAL] critical msg

log1文件中记录

2017-02-11 10:32:01,532 [mylogger.py:50][INFO] info msg2017-02-11 10:32:01,532 [mylogger.py:51][WARNING] warning msg2017-02-11 10:32:01,532 [mylogger.py:52][ERROR] error msg2017-02-11 10:32:01,532 [mylogger.py:53][CRITICAL] critical msg

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