Mod_python error: "PythonHandler django.core.handlers.modpython"

Traceback (most recent call last):

  File "/usr/lib/python2.3/site-packages/mod_python/apache.py", line 299, in HandlerDispatch
    result = object(req)

  File "/usr/lib/python2.3/site-packages/django/core/handlers/modpython.py", line 188, in handler
    return ModPythonHandler()(req)

  File "/usr/lib/python2.3/site-packages/django/core/handlers/modpython.py", line 161, in __call__
    response = self.get_response(request)

  File "/usr/lib/python2.3/site-packages/django/core/handlers/base.py", line 64, in get_response
    response = middleware_method(request)

  File "/usr/lib/python2.3/site-packages/django/middleware/common.py", line 57, in process_request
    urlresolvers.resolve(request.path)

  File "/usr/lib/python2.3/site-packages/django/core/urlresolvers.py", line 292, in resolve
    return get_resolver(urlconf).resolve(path)

  File "/usr/lib/python2.3/site-packages/django/utils/functional.py", line 18, in wrapper
    result = func(*args)

  File "/usr/lib/python2.3/site-packages/django/core/urlresolvers.py", line 59, in get_resolver
    urlconf = settings.ROOT_URLCONF

  File "/usr/lib/python2.3/site-packages/django/conf/__init__.py", line 32, in __getattr__
    return getattr(self._target, name)

AttributeError: 'Settings' object has no attribute 'ROOT_URLCONF'