python - Django 教程 NoReverseMatch

Question

我正在学习 Django 教程。我使用 Django 1.6 和 Python 2.7 Anaconda。我收到此错误:

http://imgur.com/vnY1Aoq

捕获的文本下方是

Error in template C:\Users\bg\webD\oliverk\polls\templates\polls\detail.html, 
error at line 5

我的应用程序的detail.html:

<h1>{{ poll.question }}</h1>

{% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}

<form action="{% url 'polls:vote' poll.id %}" method="post">
{% csrf_token %}
{% for choice in poll.choice_set.all %}
    <input type="radio" name="choice" id="choice{{ forloop.counter }}" value="{{ choice.id }}" />
    <label for="choice{{ forloop.counter }}">{{ choice.choice_text }}</label><br />
{% endfor %}
<input type="submit" value="Vote" />
</form>

这是网站的 urls.py:

from django.conf.urls import patterns, include, url

from django.contrib import admin
admin.autodiscover()

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

这是我的应用程序的 urls.py:

from django.conf.urls import patterns, url

from polls import views

urlpatterns = patterns('',
    url(r'^$', views.index, name='index'),
    url(r'^(?P<poll_id>\d+)/$', views.detail, name='detail'),
    url(r'^(?P<poll_id>\d+)/results/$', views.results, name='results'),
    url(r'^(?P<poll_id>\d+)/vote/$', views.vote, name='vote'),
    )

这是我的观点.py:

from django.http import HttpResponse
from django.template import RequestContext, loader
from polls.models import Poll
from django.shortcuts import render, get_object_or_404

def index(request):
    latest_poll_list = Poll.objects.order_by('-pub_date')[:5]
    template = loader.get_template('polls/index.html')
    context = RequestContext(request, {'latest_poll_list': latest_poll_list,})
    return render(request, 'polls/index.html', context)

def detail(request, poll_id):
    poll = get_object_or_404(Poll, pk=poll_id)
    return render(request, 'polls/detail.html', {'poll':poll})

def results(request, poll_id):
    return HttpResponse("You're looking at the results of poll %s." % poll_id)

def vote(request, poll_id):
    return HttpResponse("You're looking at the vote of poll %s." % poll_id)

Answer 1

我认为这里的问题是您没有在网站的 urls.py 中定义 polls 命名空间:

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