该视图没有返回一个HttpResponse对象。它返回无 [英] The view didn't return an HttpResponse object. It returned None instead

问题描述

我有以下简单的观点。为什么会导致此错误？

视图auth_lifecycle.views.user_profile未返回HttpResponse对象。它返回了无。

 呈现用户认证生命周期项目的网页。
 from django.shortcuts import render 
 from django.template import RequestContext 
 from django.contrib.auth import authenticate，login 
 
 def user_profile（request ）
显示登录用户唯一的信息。
 
 user = authenticate（username ='superuserusername'，password ='sueruserpassword'）
登录（请求，用户）
 
 render（request，'auth_lifecycle / user_profile.html'，
 context_instance = RequestContext（request））
  pre> 
 
解决方案
因为视图必须返回  render ，不只是调用它。将最后一行更改为
  return render（request，'auth_lifecycle / user_profile.html'，
 context_instance = RequestContext请求））
  
 
I have the following simple view. Why is it resulting in this error?

The view auth_lifecycle.views.user_profile didn't return an HttpResponse object. It returned None instead.
"""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))

解决方案
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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