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log.py
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log.py
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import logging
from logging import handlers
class Logger(object):
level_relations = {
'debug':logging.DEBUG,
'info':logging.INFO,
'warning':logging.WARNING,
'error':logging.ERROR,
'crit':logging.CRITICAL
}#日志级别关系映射
def __init__(self,filename,level='info',when='D',backCount=3,fmt='%(asctime)s - %(pathname)s[line:%(lineno)d] - %(levelname)s: %(message)s'):
self.logger = logging.getLogger(filename)
format_str = logging.Formatter(fmt)#设置日志格式
self.logger.setLevel(self.level_relations.get(level))#设置日志级别
sh = logging.StreamHandler()#往屏幕上输出
sh.setFormatter(format_str) #设置屏幕上显示的格式
th = handlers.TimedRotatingFileHandler(filename=filename,when=when,backupCount=backCount,encoding='utf-8')#往文件里写入#指定间隔时间自动生成文件的处理器
#实例化TimedRotatingFileHandler
#interval是时间间隔,backupCount是备份文件的个数,如果超过这个个数,就会自动删除,when是间隔的时间单位,单位有以下几种:
# S 秒
# M 分
# H 小时、
# D 天、
# W 每星期(interval==0时代表星期一)
# midnight 每天凌晨
th.setFormatter(format_str)#设置文件里写入的格式
self.logger.addHandler(sh) #把对象加到logger里
self.logger.addHandler(th)
if __name__ == '__main__':
log = Logger('monitor.log',level='debug')
log.logger.debug('debug')
log.logger.info('info')
log.logger.warning('警告')
log.logger.error('报错')
log.logger.critical('严重')
Logger('error.log', level='error').logger.error('error')