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url namespace for courses fails in layout.html python django

all looks good but it is not getting the namespace correctly

error on line 14 of the layout.html

<a href="
      {% url 'courses:list' %}
from django.conf.urls import include, url
from django.contrib import admin, flatpages
from django.contrib.staticfiles.urls import staticfiles_urlpatterns

from . import views

urlpatterns = [
    url(r'^courses/', include('courses.urls', namespace='courses')),
    url(r'^admin/', include(admin.site.urls)),
    url(r'^$', views.home),
    url(r'^home', views.home),

urlpatterns += staticfiles_urlpatterns()

Restarted the python manage.py run server did not help

can you also show your views file


Chris Freeman
Chris Freeman
Treehouse Moderator 68,404 Points

Three debug pieces needed: the complete error message, the files urls.py and the layout.html. The extra spaces between the quotes and the url template tag might be an issue:

<a href="{% url 'courses:list' %}">Courses</a>

Sometimes issues are caused by the line *preceding * the marked link. Check the previous statement.

1 Answer

from django.http import HttpResponse
from django.shortcuts import get_object_or_404, render

from .models import Course, Step

def course_list(request):
    courses = Course.objects.all()
    return render(request, 'courses/course_list.html', {'courses': courses})

def course_detail(request, pk):
    # course = Course.objects.get(pk=pk)
    course = get_object_or_404(Course, pk=pk)
    return render(request, 'courses/course_detail.html', {'courses': courses})

def step_detail(request, course_pk, step_pk):
    step = get_object_or_404(Step, course_id=course_pk, pk=step_pk)
    return render(request, 'courses/step_detail.html', {'step': step})

hope that helps, thanks in advance

Thanks this is tricky stuff... I think I corrected the issue here by eliminating the previous manual url to home