[Answer]-Django 1.6 Model Forms, AttributeError

If your urls.py file is exactly as shown, you have a typo in it:

urlpatterns = patterns('',
    url(r'^$', CustomerForm.as_view, name ='add_customer')),

The trailing comma turns the variable from a patterns object into a 1-length tuple of the patterns object, eg:

>>> foo = 1,
>>> type(foo)
<type 'tuple'>