Django: “No module named urls” error for /admin/

Backward compatibility issue from Django 0.96 -> Django 1.0.

http://groups.google.com/group/django-users/browse_thread/thread/28df85c31f859f36

>> http://code.djangoproject.com/wiki/BackwardsIncompatibleChanges#Mergednewforms-adminintotrunk :

# OLD:
from django.conf.urls.defaults import *

urlpatterns = patterns('',
    (r'^admin/', include('django.contrib.admin.urls')),
)

# NEW:
from django.conf.urls.defaults import *
from django.contrib import admin

admin.autodiscover()

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