Django Tutorial, Getting: Type Error at / admin / argument for reverse () should be a sequence

Question

I am working on a django tutorial for version 1.8 and I get an error message that I am stuck and cannot understand. I thought I was following T. carefully.

I have the following tree installed:

. ├── dj_project │ ├── __init__.py │ ├── __init__.pyc │ ├── settings.py │ ├── settings.pyc │ ├── urls.py │ ├── urls.pyc │ ├── wsgi.py │ └── wsgi.pyc ├── manage.py └── polls ├── admin.py ├── admin.pyc ├── __init__.py ├── __init__.pyc ├── migrations │ ├── 0001_initial.py │ ├── 0001_initial.pyc │ ├── __init__.py │ └── __init__.pyc ├── models.py ├── models.pyc ├── tests.py ├── urls.py ├── urls.pyc ├── views.py └── views.pyc

and, as in the survey tutorial /urls.py :

 from django.conf.urls import url from . import views urlpatterns = { url(r'^$', views.index, name='index'), } 

and for my dj_project / urls.py :

 from django.conf.urls import include, url from django.contrib import admin urlpatterns = [ url(r'^polls/', include('polls.urls')), url(r'^admin/', include(admin.site.urls)), ] 

and in polls /views.py I have:

 from django.shortcuts import render from django.http import HttpResponse def index(request): return HttpResponse("is there something here?") 

so when I go to <mysite>/polls , I see that "there is something here", but if I go to <mysite>/admin , I get an error: TypeError at /admin/ argument to reversed() must be a sequence . If I delete polls from urlpatterns in dj_project/urls.py , the admin comes in order.

What could be the problem? I don't seem to understand.

Answer 1

In the file polls / urls.py you declare urlpatterns as a dict, it should be a list.

change

 urlpatterns = { url(r'^$', views.index, name='index'), } 

in

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