Argument to_json added to json function in Base view. Its value (which should be a boolean) determines if the data should be converted to a JSON object. Therefore if someone has already a JSON string and wants to return it in a HTTP response, he or she may set to_json=False and the object will not be converted.

from django.conf.urls.defaults import *

urlpatterns = patterns('',
    (r'^$', 'examples.views.index'),
    (r'^hello/', include('examples.hello.urls')),
)