How can I get {% url logout %} to work in my Django template?

Question

My Django app's site-wide urls.py file looks like this:

urlpatterns = patterns('',
    url(r'^$', include('myApp.urls')),
    url(r'^admin/', include(admin.site.urls)),
    url (
        r'^accounts/register/$', 
        RegistrationView.as_view(form_class=extendedRegistrationForm),
    ),  
    url(r'^accounts/', include('registration.backends.default.urls')),
    url(r'^', include('myApp.urls')),
)

I also have a urls.py specific to myApp but I have not shown that here because I don't think it's relevant.

In my template file, I have this:

{% url logout %}

It gives me this error:

'url' requires a non-empty first argument. The syntax changed in Django 1.5, see the docs.

When I change the template to:

{% url 'logout' %}

It gives me the following error:

Reverse for 'logout' with arguments '()' and keyword arguments '{}' not found. 0 pattern(s) tried: []

How do I put a link to logout in my view?

Answer 1

Add a logout url like this:

url(r"^logout/$", "django.contrib.auth.views.logout_then_login",
    name="logout"),

The correct template syntax is:

{% url 'logout' %}

Answer 2

You didn't include django.contrib.auth's URLs in your urls.py, so there is no logout URL.

Try adding something like

url(r'^auth/', include('django.contrib.auth.urls')),