Why won't Django 1.0 admin application work?

Question

I've just started playing with Django and am loosely following the tutorial with my own set of basic requirements. The models I've sketched out so far are a lot more comprehensive than the tutorial, but they compile fine. Otherwise, everything should have been the same.

My problem is with the admin application. I can log into it, and view the editable models, but when I click on a model or any of the change/add buttons, I get a 404.

This is the exact error I get:

Page not found (404)
Request Method:     GET
Request URL:    http://localhost:8000/admin/auth/user/add/

App u'', model u'auth', not found.

These are the relevant files and what is in them:

urls.py

from django.conf.urls.defaults import *

# Uncomment the next two lines to enable the admin:
from django.contrib import admin
admin.autodiscover()

urlpatterns = patterns('',
# Example:
# (r'^daso/', include('daso.foo.urls')),

# Uncomment the admin/doc line below and add 'django.contrib.admindocs' 
# to INSTALLED_APPS to enable admin documentation:
#(r'^admin/doc/', include('django.contrib.admindocs.urls')),

# Uncomment the next line to enable the admin:
    (r'^admin(.*)', admin.site.root)
)

admin.py

from daso.clients.models import Person, Client, Contact
from django.contrib import admin

admin.site.register(Person)
admin.site.register(Client)
admin.site.register(Contact)

models.py - I'll just show one model

class Client(Person):
relationships = models.ManyToManyField("Contact", through="Relationship", null=True)
disabilities = models.ManyToManyField("Disability", related_name="disability", null=True)
medical_issues = models.ManyToManyField("MedicalIssue", related_name="medical_issue", null=True)
medicare_num = models.CharField(max_length=15, blank=True)
insurance = models.OneToOneField("Insurance", null=True, blank=True)
medications = models.ManyToManyField("Medication", through="Medication_Details", null=True)

def __unicode__(self):
 client = u"[Client[id: ", self.id, " name: ", self.first_name, " ", self.last_name, "]"
 return client

settings.py

INSTALLED_APPS = (
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.admin',
    'daso.clients',
)

MIDDLEWARE_CLASSES = (
    'django.middleware.common.CommonMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
)

Those should be the relevant files/sections of files. If anyone has an idea about WHY I'm getting a 404, please enlighten me?

Note, when pasting in here, installed apps had the last 2 apps tabbed instead of spaced*4, and when reloading the admin page it worked for half a second then 404'd again. Strange. Ideas?

Answer 1

It's because you left out a / in urls.py. Change the admin line to the following:

(r'^admin/(.*)', admin.site.root),

I checked this on my server and got the same error with your line from urls.py.