cd ~/work/git/django66/samplesite

python manage.py startapp helloworld

helloworld/
helloworld/__init__.py
helloworld/views.py
helloworld/models.py

from django.http import HttpResponse
 
def helloworld(request):
    return HttpResponse('Hello, World!')

from django.conf.urls.defaults import *
 
urlpatterns = patterns('',
    (r'^$', 'samplesite.helloworld.views.helloworld'),
)

python manage.py runserver