python (logging) 日志按日期、大小回滚的操作

# -*- coding: utf-8 -*-
import os
import logging.handlers 
log_dir = os.path.dirname(os.path.abspath(__file__)) + os.sep + 'logs' 
if not os.path.isdir(log_dir):
 os.makedirs(log_dir) 
# CONSTANT VARIABLES 
MODULE_NAME = 'my_module'
LOG_LEVEL = 'INFO' 
def get_logger(module_name=MODULE_NAME, log_level=LOG_LEVEL): 
 logging.basicConfig() 
 logger = logging.getLogger(module_name) 
 logger.setLevel(log_level)
 
 # # 按时间回滚 1天换1次, 保留180天
 # time_file_handler = logging.handlers.TimedRotatingFileHandler(
 # log_dir + os.sep + module_name + '_day.log',
 # when='midnight',
 # interval=1,
 # backupCount=180
 # )
 #
 # time_file_handler.suffix = '%Y-%m-%d.log' # 按 天 
 time_file_handler = logging.handlers.TimedRotatingFileHandler(
 log_dir + os.sep + module_name + '_sec.log',
 when='S',
 interval=1,
 backupCount=180
 ) 
 time_file_handler.suffix = '%Y-%m-%d_%H-%M-%S.log' # 按 秒
 formatter = logging.Formatter('[%(asctime)s]-[%(filename)s]-[%(funcName)s]-[%(lineno)d]-12s: [%(levelname)s]-8s>> %(message)s')
 time_file_handler.setFormatter(formatter) 
 logger.addHandler(time_file_handler)
 
 # # 按大小回滚
 # file_size_handler = logging.handlers.RotatingFileHandler(
 # log_dir + os.sep + module_name + 'size.log',
 # maxBytes=1024,
 # backupCount=1000,
 # )
 # file_size_handler.setFormatter(formatter)
 # logger.addHandler(file_size_handler) 
 return logger 
if __name__ == '__main__':
 logger = get_logger()
 logger.info('hello')

#!/usr/bin/env python
#_*_coding:utf-8_*_
# vim : set expandtab ts=4 sw=4 sts=4 tw=100 :
import logging
import time
import re
from logging.handlers import TimedRotatingFileHandler
from logging.handlers import RotatingFileHandler
def main():
 #日志打印格式
 log_fmt = '%(asctime)s\tFile \"%(filename)s\",line %(lineno)s\t%(levelname)s: %(message)s'
 formatter = logging.Formatter(log_fmt)
 #创建TimedRotatingFileHandler对象
 log_file_handler = TimedRotatingFileHandler(filename="ds_update", when="M", interval=2, backupCount=2)
 #log_file_handler.suffix = "%Y-%m-%d_%H-%M.log"
 #log_file_handler.extMatch = re.compile(r"^\d{4}-\d{2}-\d{2}_\d{2}-\d{2}.log$")
 log_file_handler.setFormatter(formatter) 
 logging.basicConfig(level=logging.INFO)
 log = logging.getLogger()
 log.addHandler(log_file_handler)
 #循环打印日志
 log_content = "test log"
 count = 0
 while count < 30:
 log.error(log_content)
 time.sleep(20)
 count = count + 1
 log.removeHandler(log_file_handler)
if __name__ == "__main__":
 main()