Django NoReverseMatch

Question

我正在django 1.6（以及python 2.7）中创建一个简单的登录应用程序，并且我在开始时遇到错误，不让我继续。

这是该网站的url.py

from django.conf.urls import patterns, include, url
from django.contrib import admin
import login

admin.autodiscover()

urlpatterns = patterns('',
    url(r'^$', include('login.urls', namespace='login')),
    url(r'^admin/', include(admin.site.urls)),
)

这是login / urls.py：

from django.conf.urls import patterns, url
from login import views

urlpatterns = patterns('',
    url(r'^$', views.index, name='index'),
    url(r'^auth/', views.auth, name='auth'),
)

这是登录/视图，py

from django.shortcuts import render
from django.contrib.auth import authenticate

def auth(request):
    user = authenticate(username=request.POST['username'], password=request.POST['password'])
    if user is not None:
        # the password verified for the user
        if user.is_active:
            msg = "User is valid, active and authenticated"
        else:
            msg = "The password is valid, but the account has been disabled!"
    else:
        # the authentication system was unable to verify the username and password
        msg = "The username and password were incorrect."
    return render(request, 'login/authenticate.html', {'MESSAGE': msg})

def index(request):
    return render(request, 'login/login_form.html')

我有一个将此作为操作的表单：

{% url 'login:auth' %}

这就是问题所在，当我尝试加载页面时，我得到：

Reverse for 'auth' with arguments '()' and keyword arguments '{}' not found. 1 pattern(s) tried: [u'$auth/']

但如果我将网址格式设置为

url(r'', views.auth, name='auth')

它工作正常，只将动作设置为'/'。

我一直在寻找答案，我不明白为什么它不起作用。

我尝试将登录网址模式更改为url（r'^ login / $'，include（'login.urls'，namespace ='login'）），并且它没有改变任何内容。

Answer 1

问题在于您在主要网址中包含身份验证网址的方式。  因为你同时使用^和$，所以只有空字符串匹配。放弃$。