URL() получил неожиданное ключевое слово аргумент «пространства имен»

Question

New Джанго здесь, так что простите за вопрос новичка ...

Я получаю ошибку url() got an unexpected keyword argument 'namespace', когда я пытаюсь вызвать на функцию reverse. Пробовал несколько разных способов исправить это, но ничего не работает. Любые советы будут очень признательны. Пожалуйста, смотрите мой код ниже:

TypeError at /comments/topic-create/ 
url() got an unexpected keyword argument 'namespace' 
Request Method: POST 
Request URL: http://127.0.0.1:8000/comments/topic-create/ 
Django Version: 1.8.6 
Exception Type: TypeError 
Exception Value:  
url() got an unexpected keyword argument 'namespace' 

models.py

from django.db import models 
from django.conf import settings 
from django.utils.text import slugify 
from django.core.urlresolvers import reverse 

class Topic(models.Model): 
    title = models.CharField(max_length=50) 
    stock = models.ManyToManyField(Stock) 
    slug = models.SlugField(max_length=200, blank=True) 
    created = models.DateField(auto_now_add=True, 
           db_index=True) 

    def __str__(self): 
     return self.title 

    def save(self, *args, **kwargs): 
     if not self.slug: 
      self.slug = slugify(self.title) 
      super(Topic, self).save(*args, **kwargs) 

    def get_absolute_url(self): 
     return reverse('comments:topic_detail', args=[self.id, self.slug]) 

forms.py

from django import forms 
from .models import Topic 

class TopicCreateForm(forms.ModelForm): 
    class Meta: 
     model = Topic 
     fields = ('__all__') 

views.py

from django.shortcuts import render, redirect, get_object_or_404 
from django.contrib.auth.decorators import login_required 
from .forms import TopicCreateForm 
from django.contrib import messages 
from .models import Stock, Topic, Comment 
# from django.core.urlresolvers import reverse_lazy 

@login_required 
def topic_create(request): 
    if request.method == 'POST': 
     form = TopicCreateForm(data=request.POST) 
     if form.is_valid(): 
      cd = form.cleaned_data 
      new_item = form.save(commit=False) 
      new_item.user = request.user 
      new_item.save() 
      messages.success(request, 'Topic added successfully') 
      # redirect to new created topic detail view 
      return redirect(new_item.get_absolute_url()) 
    else: 
     form = TopicCreateForm(data=request.GET) 

    return render(request, 
        'comments/comment/topic-create.html', 
        {'section': 'topic', 
        'form': form}) 

def topic_detail(request, namespace, id, slug): 
    topic = get_object_or_404(Topic, id=id, slug=slug) 
    return render(request, 
        'comments/comment/topic-detail.html', 
        {'section': 'topic', 
        'topic': topic}) 

комментарии/urls.py

from django.conf.urls import url 
from . import views 

urlpatterns = [ 
    url(r'^topic-create/$', views.topic_create, name='create-topic'), 
    url(r'topic-detail/(?P<id>\d+)/(?P<slug>[-\w]+)/$', 
     views.topic_detail, name='topic-detail'), 
] 

MySite/urls.py

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

urlpatterns = [ 
    url(r'^admin/', include(admin.site.urls)), 
    url(r'^account/', include('account.urls')), 
    url(r'^comments/', include('comments.urls'), 
       namespace='comments'), 
] 

Answer 1

В официальной документации django можно указать синтаксис и параметры для URL-адреса include(). here. Вам нужно использовать пространство имен внутри метода include(), а не снаружи url().

url(r'^comments/', include('comments.urls', namespace='comments')), 

Answer 2

include() ожидает аргумент ключевого слова namespace не url() так что ваша последняя строка в mysite/urls.py должна быть

url(r'^comments/', include('comments.urls', namespace='comments')),