Python之异常追踪模块:traceback

正常时输出追踪信息：

import traceback
def stack():print 'The python stack:'traceback.print_stack()
from twisted.internet import reactor
reactor.callWhenRunning(stack)
reactor.run()#摘录来自: likebeta. “Twisted与异步编程入门”。 iBooks. 

异常时输出异常消息：

import traceback
try:1/0
except Exception,e:traceback.print_exc()#摘录来自：http://www.oschina.net/question/565065_122586