#!/usr/bin/python

# -*- encoding:utf-8 -*-

# class test1(object):

# def __enter__(self):

# print "this is __enter__()"

# return "Foo"

# def __exit__(self,type,value,trace):

# print "this is __exit__()"

# print test1()

# with test1() as test1obj:

# print "testobj is:",test1obj

class test(object):

def __enter__(self):

return self

def __exit__(self,type,value,trace):

print "type is:",type

print "value is:",value

print "trace is:",trace

def do_something(self):

bar = 1/0

return bar+10

with test() as testobj:

tval = 1 + "2"

testobj.do_something()

# class test(object):

# def __enter__(self):

# return self

# def __exit__(self,type,value,trace):

# print "type is:",type

# print "value is:",value

# print "trace is:",trace

# def do_something(self):

# bar = 1/0

# return bar+10

# with test() as testobj:

# testobj.do_something()