该视图未返回 HttpResponse 对象.它返回 None 代替 [英] The view didn't return an HttpResponse object. It returned None instead

问题描述

我有以下简单的看法.为什么会导致这个错误?

I have the following simple view. Why is it resulting in this error?

视图 auth_lifecycle.views.user_profile 未返回 HttpResponse 对象.它返回 None .

"""Renders web pages for the user-authentication-lifecycle project."""
from django.shortcuts               import render
from django.template                import RequestContext
from django.contrib.auth            import authenticate, login

def user_profile(request):
    """Displays information unique to the logged-in user."""

    user = authenticate(username='superuserusername', password='sueruserpassword')
    login(request, user)

    render(request, 'auth_lifecycle/user_profile.html',
           context_instance=RequestContext(request))

推荐答案

因为视图必须返回 render，而不仅仅是调用它.最后一行改为

Because the view must return render, not just call it. Change the last line to

return render(request, 'auth_lifecycle/user_profile.html',
           context_instance=RequestContext(request))

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