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")
fromlogimportlogger
logger.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handler
logger.addHandler(handler_file)
fromlogimportlogger
fee=3
data={}
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']))
>>>>
importlogstart
2020-05-2515:27:26,286-log_level.py:17-fee=100+"trade_amount"
importlogend
修改代码
日志的等级打印正常
print"importlogstart"
importlogging
importdatetime
date=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handler
logger.addHandler(handler_file)
logger.addHandler(handler_console)
总结
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