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
    }

    def __init__(self, filename, level='info', when='D', backCount=3, fmt='%(asctime)s: %(message)s'):
        self.logger = logging.getLogger(filename)
        format_str = logging.Formatter(fmt)
        self.logger.setLevel(self.level_relations.get(level))
        sh = logging.StreamHandler()
        sh.setFormatter(format_str)
        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
        th.setFormatter(format_str)
        self.logger.addHandler(sh)
        self.logger.addHandler(th)