python 日志模块 日志等级设置失效的解决方案

代码问题：控制台和日志的文件的等级设置要放在

logger = logging.getLogger(’myloger’)

实例化之后才会生效 不然就被logger默认的替代了

问题：当前日志模块的等级设置 失效

现象：

console_level = 'INFO'handler_level = 'INFO'handler_file = logging.FileHandler(filename)handler_file.setFormatter(formatter)handler_file.setLevel(handler_level)handler_console = logging.StreamHandler()handler_console.setFormatter(formatter)handler_console.setLevel(console_level)logger = logging.getLogger(’myloger’)# logger.setLevel('INFO')from log import loggerlogger.debug('debug---------------')logger.info('info---------------')logger.warning('warning---------------')logger.error('error---------------')logger.critical('critical---------------')>>>>> 空 没有打印

解决办法 使用这个级别设置

logger.setLevel('INFO')

console_level = 'INFO'handler_level = 'INFO'handler_file = logging.FileHandler(filename)handler_file.setFormatter(formatter)handler_file.setLevel(handler_level)handler_console = logging.StreamHandler()handler_console.setFormatter(formatter)handler_console.setLevel(console_level)logger = logging.getLogger(’myloger’)logger.setLevel('INFO')# 给logger添加handlerlogger.addHandler(handler_file)from log import loggerfee=3data={}data[’trade_amount’]=100# logger.info('ddddddddddddddddddddddddddddd')# logger.info(’fee=’+ str(fee) + 'trade_amount'+ str(data[’trade_amount’]))#logger.info(’fee=’ + 'trade_amount'+ data[’trade_amount’],)logger.info(’fee ={0}+'trade_amount'’.format(data[’trade_amount’]))>>>>import log start2020-05-25 15:27:26,286 - log_level.py:17 - fee =100+'trade_amount'import log end

修改代码

日志的等级打印正常

print 'import log start'import loggingimport datetimedate = datetime.datetime.strftime(datetime.datetime.now(), ’%Y%m%d’)filename = date + ’.log’fmt = ’%(asctime)s - %(filename)s:%(lineno)s - %(message)s’formatter = logging.Formatter(fmt)logger = logging.getLogger(’myloger’)logger.setLevel(logging.DEBUG)console_level = 'INFO'handler_level = 'DEBUG'# logging.basicConfig(level=logging.DEBUG)handler_file = logging.FileHandler(filename)handler_file.setFormatter(formatter)handler_file.setLevel(handler_level)handler_console = logging.StreamHandler()handler_console.setFormatter(formatter)handler_console.setLevel(console_level)# 给logger添加handlerlogger.addHandler(handler_file)logger.addHandler(handler_console)

总结

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