Filter by category should also be tested for undefined (and not just empty string) in case no category has been defined.
from django.conf.urls.defaults import *
# Uncomment the next two lines to enable the admin:
from django.contrib import admin
admin.autodiscover()
urlpatterns = patterns('',
(r'^admin/', include(admin.site.urls)),
(r'', include('cm.urls')),
)
try :
import urls_local
except ImportError :
pass