有个哥们总是不自觉的跟我说 IHMO，害我看得一头雾水，只好上网找一下解释了：

If you're talking about the commonly used IM/chat/e-mail abbreviation, I think you may have transposed a letter.

"imho" is an acronym for "In my humble opinion."

On the other hand, if you really are asking about "ihmo," I'm afraid I have ...

render_to_response 返回的其实也是一个 response 对象，直接使用这个 response 对象即可:

def foobar(request):
    #...
    response = render_to_response(template_name, context)
    response.set_cookie('foo', 'bar', 60 * 60 * 24)
    return response

参考

• Django: use render_to_response and set cookie

当修改 request.GET/request.POST 时，会出现: "AttributeError: This QueryDict instance is immutable":

def foobar(request):
    #...
    request.GET['foo'] = bar  # AttributeError: This QueryDict instance is immutable
    #...

因为默认的 QueryDict 是不可修改的。解决办法就是复制一份副本，对副本进行修改：

def foobar(request):
    #...
    request.GET = request.GET.copy()  # 添加这一句
    request.GET['foo'] = bar
    #...

参考

• Changing request.POST ...