Using the URLconf defined in mysite.urls, Django tried these URL patterns, in this order:

Question

I know this question has been asked before, but I haven't found an answer that solves my situation.

I'm looking at the Django tutorial, and I've set up the first URLs exactly as the tutorial has it, word for word, but when I go to http://http://localhost:8000/polls/, it gives me this error:

Using the URLconf defined in mysite.urls, Django tried these URL patterns, in this order:
^polls/ ^% [name='index']
^admin/
The current URL, polls/, didn't match any of these.

I'm using Django 1.10.5 and Python 2.7.

Here is the code I have in relevant url and view files:

In mysite/polls/views.py:

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

# Create your views here.
def index(request):
  return HttpResponse("Hello, world. You're at the polls index.")

In mysite/polls/urls.py:

from django.conf.urls import url

from . import views

urlpatterns = [
  url(r'^%', views.index, name='index'),
]

In mysite/mysite/urls.py:

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

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

What's going on? Why am I getting 404s?

Solution 1

Your url conf regex is incorrect, you have to use $ instead of %.

from django.conf.urls import url

from . import views

urlpatterns = [
   url(r'^$', views.index, name='index'),
]

The $ acts as a regex flag to define the end of the regular expression.

Solution 2

urlpatterns = [path('', views.index, name='index'), ]

Comments

[HLH]

Ugh, can't believe I missed that. Thank you.

[Coliban]

Then the original django documentation is broken where it is desrcibed in a wrong way: Writing your first Django app, part 1

[CodingMatters]

Django version 1.x to 2.x changed from url to path. I'm new to Django, landed here while diagnosing errors following this tut/demo. thecodinginterface.com/blog/django-auth-part1 I should have followed the official django tut first :) Using the URLconf defined in django_survey.urls, Django tried these URL patterns, in this order: blah. dropping link below to help alternate universe version of me time warp. consideratecode.com/2018/05/02/…

[Naman Bansal]

you don't need to use Regex links in Django 3.0. I am still getting this error. Any suggestions?

[v1k45]

You can use the path function to define a wildcard url path('', views.index, name='index'),

[Mike1982]

@v1k45 that was my problem as well. Your solution fixed it for Django 3.1