django reverse() failing - django

Question

simply put mentions of reverse() anywhere in my project were failing, and so was {% url %}.
I have since made some progress if you scroll to the bottom!
relevant files
root/urls.py
from django.conf.urls.defaults import patterns, include, url
from django.contrib.staticfiles.views import serve as serveStatic
# 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'^dbrowse/', include('dbrowse.urls')),
(r'^static/', serveStatic),
url(r'^$', 'core.views.viewHallo',name='home'),
)
root/core/views.py
from django.shortcuts import render_to_response
from django.template.context import RequestContext
from site import site_store
def viewHallo (request):
pass
return render_to_response ('core.html',
{'site':site_store,
'title':'i am the hallo view',
'content':'Hallo World!',},
context_instance=RequestContext(request))
Notes
I first noticed the reverse() failing when i had a file called site.py in my project that tried to call reverse(). I was using it to store site settings. I was using the file because
I didn't want to use the bother the database with data that would rarely change.
If I nuked my projects database I didn't want my site settings also going down
I have since found a way to use models to achieve the two goals.
but all that is just extra background info, in case you here someone commenting about a site.py.
update 25/02/11
well here goes!
first notice that urls.py has (r'^dbrowse/', include('dbrowse.urls')). that caused reverse() to fail. I'll explain later...
as for the template tag, I've discovered that the {% url %} doesnt take variables. I took this completely for granted.In fact when I was testing the template tag, i'd just go in and hard code something such as {% url 'home' %} which would work and sometimes i'd test {% url home %} with home being a variable. I din't even see this as being completely different test cases.
But i now know {% load url from future %} allows you to use variables as arguments to {% url %}
Anyway, now back to the (r'^dbrowse/', include('dbrowse.urls')) in urls.py
I had a folder like so
project\
--dbrowse\
__init__.py
urls.py
now this is dbrowse/urls.py
from django.conf.urls.defaults import patterns, url
#databrowse
from django.contrib import databrowse
databrowse.site.register(MyModel)
urlpatterns = patterns('',
url(r'(.*)',databrowse.site.root, name='dbrowse'),)
this was my attempt to avoid having to put databrowse.site.register(MyModel) in my project's root urls.py like the docs suggested. I dont like the idea of polluting my projects main urls.py with databrowse.site.register(MyModel)
however I still dont understand why this caused reverse() to break. but i'm supecting it's to do with (.*) being in the pattern.