创建日志的两种方式

方式一：

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

import logging
import os

class Logger(object):
"""
封装好的Logger工具
"""

def __init__(self, logPath):
"""
initial
"""
log_path = logPath
logging.addLevelName(20, "NOTICE:")
logging.addLevelName(30, "WARNING:")
logging.addLevelName(40, "FATAL:")
logging.addLevelName(50, "FATAL:")
logging.basicConfig(level=logging.DEBUG,
format="%(levelname)s %(asctime)s [pid:%(process)s] %(filename)s %(message)s",
datefmt="%Y-%m-%d %H:%M:%S",
filename=log_path,
filemode="a")
console = logging.StreamHandler()
console.setLevel(logging.DEBUG)
formatter = logging.Formatter("%(levelname)s [pid:%(process)s] %(message)s")
console.setFormatter(formatter)
logging.getLogger("").addHandler(console)

def debug(self, msg=""):
"""
output DEBUG level LOG
"""
logging.debug(str(msg))

def info(self, msg=""):
"""
output INFO level LOG
"""
logging.info(str(msg))

def warning(self, msg=""):
"""
output WARN level LOG
"""
logging.warning(str(msg))

def exception(self, msg=""):
"""
output Exception stack LOG
"""
logging.exception(str(msg))

def error(self, msg=""):
"""
output ERROR level LOG
"""
logging.error(str(msg))

def critical(self, msg=""):
"""
output FATAL level LOG
"""
logging.critical(str(msg))


if __name__ == "__main__":
testlog = Logger("oupput.log")
testlog.info("info....")
testlog.warning("warning....")
testlog.critical("critical....")
try:
lists = []
print lists[1]
except Exception as ex:
"""logging.exception()输出格式：
FATAL: [pid:7776] execute task failed. the exception as follows:
Traceback (most recent call last):
File "logtool.py", line 86, in <module>
print lists[1]
IndexError: list index out of range
"""
testlog.exception("execute task failed. the exception as follows:")
testlog.info("++++++++++++++++++++++++++++++++++++++++++++++")
"""logging.error()输出格式：
FATAL: [pid:7776] execute task failed. the exception as follows:
"""
testlog.error("execute task failed. the exception as follows:")
exit(1)

方式二：

os.system("python 123.py > changip.log")