模块(4)logging

test.cfg文件:
[sysparm]

# CRITICAL 50; ERROR 40; WARNING 30; INFO 20; DEBUG 10, NOSET 0;
log_level:10

#!/usr/bin/env python
#coding=utf-8


import logging
import sys
from logging.handlers import RotatingFileHandler
from base_course.modules.configparseexample import get_cfg




def log_basic():
   # CRITICAL 50; ERROR 40; WARNING 30; INFO 20; DEBUG 10, NOSET 0;
   # 将日志写入文件
   logging.basicConfig(filename="web.log",
                       level=logging.INFO,
                       format='%(asctime)s %(name)s %(levelname)s %(module)s:%(lineno)d %(message)s')
   logging.getLogger("info").setLevel(logging.INFO)
   logging.info("this is info log")

   logging.getLogger("warning").setLevel(logging.WARNING)
   logging.info("this is warning log")

   logging.getLogger("debug").setLevel(logging.DEBUG)
   logging.debug("this is debug log")

   # 从配置文件中获取参数值
   logging.basicConfig(stream=sys.stdout,
                       level=int(get_cfg("test.cfg").get('sysparm','log_level')),
                       format='%(asctime)s %(name)s %(levelname)s %(module)s:%(lineno)d %(message)s')

   logging.getLogger("info").setLevel(logging.INFO)
   logging.info("this is info log")

   logging.getLogger("warning").setLevel(logging.WARNING)
   logging.info("this is warning log")

   logging.getLogger("debug").setLevel(logging.DEBUG)
   logging.debug("this is debug log")



def log_rotate():
   #日志备份
   format='%(asctime)s %(name)s %(levelname)s %(module)s:%(lineno)d %(message)s'
   logging.basicConfig(level=10,format='%(asctime)s %(name)s %(levelname)s %(module)s:%(lineno)d %(message)s')

   #定义RotatingFileHandler，日志文件大小超过10M时进行旋转，最大5个备份日志文件。
   rotateHandler = RotatingFileHandler('you.log', maxBytes=1024*0.01, backupCount=5)
   rotateHandler.setLevel(logging.DEBUG)
   rotateHandler.setFormatter(logging.Formatter(format))
   logging.getLogger("").addHandler(rotateHandler)
   logging.getLogger().propagate = False

   logging.info("my log "*500)




if __name__=="__main__":
   log_basic()
   # log_rotate()