Python log 模块介绍

import logging
import logging.handlers
import os
from datetime import datetime

basedir=r‘D:\log‘
LOG_LEVEL = 0
resultPath = os.path.join(basedir,‘result‘)
if not os.path.exists(resultPath):
    os.mkdir(resultPath)
LOG_PATH = os.path.join(resultPath, str(datetime.now().strftime(‘%Y-%m-%d-%H-%M-%S‘)))
if not os.path.exists(LOG_PATH):
    os.mkdir(LOG_PATH)
LOG_FILE_PATH = os.path.join(LOG_PATH, ‘output.log‘)
LOG_MAX_SIZE = 10*1024*1024
LOG_BACKUP_COUNT = 5
FILE_LOG_LEVEL = 10
STREAM_LOG_LEVEL = 20

class LOG:
    logger = None

    @staticmethod
    def getLogger():
        if LOG.logger is not None:
            return LOG.logger
        LOG.logger = logging.getLogger()
        LOG.logger.setLevel(LOG_LEVEL)
        Rthandler = logging.handlers.RotatingFileHandler(
            LOG_FILE_PATH,
            maxBytes=LOG_MAX_SIZE,
            backupCount=LOG_BACKUP_COUNT,
            encoding=‘utf-8‘,
        )
        StreamHandler = logging.StreamHandler()
        formatter = logging.Formatter(
            ‘%(asctime)s-[%(levelname)s][%(module)s][%(funcName)s]-%(message)s‘)
        Rthandler.setFormatter(formatter)
        StreamHandler.setFormatter(formatter)
        Rthandler.setLevel(FILE_LOG_LEVEL)
        StreamHandler.setLevel(STREAM_LOG_LEVEL)
        LOG.logger.addHandler(Rthandler)
        LOG.logger.addHandler(StreamHandler)
        return LOG.logger

log=LOG.getLogger()
log.info(‘log test‘)