Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Django Basics Final Details Step Detail View

Need help with urlpatterns for Django 2.0 and greater

Can't seem to get the urlpattern to work, fo Django 2.0.

Following the example from the documentation, and it should work... https://docs.djangoproject.com/en/2.0/topics/http/urls/

from django.urls import path

from . import views


urlpatterns = [
    path('', views.course_list),
    path('<int:course_pk>/<int:step_pk>/', views.step_detail),
    path('<int:pk>/', views.course_detail),
]

3 Answers

Basically the urlpattern is not correct. Can't use the same as the video tutorial as it is an old version of Django.

This is the error.

TemplateDoesNotExist at /courses/1/1/

http://127.0.0.1:8000/courses/1/1/

Henrik Christensen
seal-mask
.a{fill-rule:evenodd;}techdegree
Henrik Christensen
Python Web Development Techdegree Student 38,322 Points

TemplateDoesNotExist are you sure that the template exist or you've added the right path to the template in your view?

Could you share your urlConf? (the urls.py in the main folder)

shaddowa
shaddowa
7,811 Points

I have the same problem, did you solve it?

Ian Salmon
PLUS
Ian Salmon
Courses Plus Student 10,687 Points

shaddowa This is what worked for me. The same as OP. I believe that his issue was with either the urlConf or views.py. Send me a message if you're still stuck!

path('', views.course_list),
path('<int:course_pk>/<int:step_pk>/', views.step_detail),
path('<int:pk>/', views.course_detail),
shaddowa
shaddowa
7,811 Points

I found that this worked, but only when i deleted the meta class in the step model. There was an issue with the ordering = ["order",] but i don't know why