Re: application not recognized as URL namespace

Hi Axel,

An installed application and a registered URL namespace are two distinct concepts. A URL namespace can only be defined by setting the app_name attribute in your urlconf. In this case, you haven't set a URL namespace for your authentication app, so your urls are not namespaced.

Also, the urlconf parameter to reverse() should point to the root urlconf, not to the urlconf in which your current url is defined. Since it defaults to the root urlconf defined in your project, it's easiest to omit it in most cases. If you don't, and use 'authentication.urls' as your root urlconf, the generated url will miss the 'authentication/' part of your url. 

To reverse the password_change url, simply use this:

reverse('password_change')

Marten


On Monday, December 14, 2015 at 1:37:56 PM UTC+1, Axel...@Chaos1.DE wrote:

In my root url, I have:

    url(r'^authentication/', include('authentication.urls')),

in authentication/urls.py, I have no app_name declared.

In a module in authentication, I have

        from django.core.urlresolvers import reverse

        from django.apps import apps
        print('authentication installed? ' + str(apps.is_installed('authentication')))

        reverse('authentication:password_change',urlconf='authentication.urls')
 
and receive
        django.core.urlresolvers.NoReverseMatch: 'authentication' is not a registered namespace
while the above debug print gives
        authentication installed? True

What am I doing wrong here?

Please advice,
Axel        
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