Python基础学习八 写日志

import logging
from logging import handlers


class Logger(object):
    level_relations = {
        'debug': logging.DEBUG,
        'info': logging.INFO,
        'warning': logging.WARN,
        'error': logging.ERROR,
        'crit': logging.CRITICAL
    }  # 日志级别关系映射

    def __init__(self, fp, level='debug', when='midnight', interval=1, backCount=5, encoding='utf-8'):
        '''

        :param fp:日志文件路径
        :param level: 日志级别 默认是debug
        :param when: 分割日志的单位 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
        :param interval: 时间间隔 默认每天凌晨
        :param backCount: 备份文件个数 默认5个
        :param encoding: 日志文件编码
        '''
        self.level = self.level_relations.get(level)
        self.logger = logging.getLogger(fp)
        self.logger.setLevel(self.level)
        fmt = logging.Formatter('%(asctime)s - %(pathname)s[line:%(lineno)d] - %(levelname)s: %(message)s')
        sh = logging.StreamHandler()
        sh.setFormatter(fmt)
        sh.setLevel(self.level)
        th = handlers.TimedRotatingFileHandler(fp, when=when, interval=interval, backupCount=backCount,
                                               encoding=encoding)
        th.setFormatter(fmt)
        th.setLevel(self.level)
        self.logger.addHandler(th)
        self.logger.addHandler(sh)

    def debug(self, msg):
        self.logger.debug(msg)

    def info(self, msg):
        self.logger.info(msg)

    def warning(self, msg):
        self.logger.warning(msg)

    def error(self, msg):
        self.logger.error(msg)

    def crit(self, msg):
        self.logger.critical(msg)


if __name__ == '__main__':
    l = Logger('a.log')  # 实例化
    l.info('hehehe')  # 调用
    l.debug('哈哈哈')
    l.error('xxx')