Python感觉是模仿Java, 到处都需要加try..catch...。
这里记录一下用法，方便后续使用。
1 # -*- coding:utf-8 -*- 2 3 import os 4 import logging 5 import traceback 6 7 #设置log, 这里使用默认log 8 logging.basicConfig( 9 level=logging.INFO, 10 format='%(asctime)s %(filename)s[line:%(lineno)d] %(levelname)s %(message)s', 11 datefmt='[%Y-%m_%d %H:%M:%S]', 12 filename=os.path.dirname(os.path.realpath(__file__)) + "/" + 'test.log', 13 filemode='a') 14 15 a=10 16 b=0 #设置为0, 走异常流程; 否则， 走正常流程 17 18 try: 19 res=a/b 20 logging.info("exec success, res:" + str(res)) 21 except Exception,e: 22 #format_exc()返回字符串，print_exc()则直接给打印出来 23 traceback.print_exc() 24 logging.warning("exec failed, failed msg:" + traceback.format_exc())
logging默认打印级别是warning.
format_exc()返回字符串，print_exc()则直接给打印出来
日志打印:
[2017-11_17 07:51:02] trace.py[line:24] WARNING exec failed, failed msg:Traceback (most recent call last):
File "trace.py", line 19, in <module>
res=a/b
ZeroDivisionError: integer division or modulo by zero
