logging write to the log file

util_log.py

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)




test.py pay attention to the absolute path

from util_log import Logger
log = Logger(r'C:/projects/p1/testr_log/20200825test.log', level='debug')
log.logger.debug("55555555555555555555")

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Origin blog.csdn.net/weixin_42540340/article/details/108600016