Problem with Django reverse()

I am missing something really basic here.

I am trying to reuse django's change password views. I have following in urls.py:

(r'^change-password/$', 'profile.views.change_password', {},'change_password'),
url(r'^change-password-done/$', 'profile.views.password_change_done', name='django.contrib.auth.views.password_change_done'),

and in corresponding views.py:

from django.contrib.auth.views import password_change, password_change_done

def change_password(request,template_name="password_change_form.html"):
    """Change Password"""
    return password_change(request,template_name=template_name)

def password_change_done(request, template_name="password_change_done.html"):
  开发者_JS百科  return render_to_response(template_name,(),context_instance= RequestContext(request))

but I am getting following error:

Reverse for 'django.contrib.auth.views.password_change_done' with arguments '()' and keyword arguments '{}' not found.

looked at the source and saw this line:

post_change_redirect = reverse('django.contrib.auth.views.password_change_done')

If I change my urls.py entry to following , I do not get the above error:

url(r'^change-password-done/$', 'django.contrib.auth.views.password_change_done', name='anything'),

but I am confused as reverse() should look-up using the "name" parameter? What am I missing here?

I am using django 1.2.3

Josh has the explanation, but you are doing this wrong. If you want to overrride the post_save_redirect, then pass that in as a parameter when you call the view:

def change_password(request,template_name="password_change_form.html"):
    return password_change(request, template_name=template_name, 
                           post_save_redirect=reverse('my_done_page'))

See the documentation.

The reverse function doesn't just do lookups on name.

Reverse Documentation.

reverse(viewname, urlconf=None, args=None, kwargs=None, current_app=None) viewname is either the function name (either a function reference, or the string version of the name, if you used that form in urlpatterns) or the URL pattern name.

So, by doing reverse('django.contrib.auth.views.password_change_done'), it will look up that view name within the urls.py regexes, and fallback to looking for the name keyword argument if the viewname doesn't resolve.