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

Traceback (most recent call last):

  File "/usr/lib/python2.4/site-packages/mod_python/apache.py", line 299, in HandlerDispatch
    result = object(req)

  File "/usr/lib/python2.4/site-packages/django/core/handlers/modpython.py", line 189, in handler
    return ModPythonHandler()(req)

  File "/usr/lib/python2.4/site-packages/django/core/handlers/modpython.py", line 162, in __call__
    response = self.get_response(request)

  File "/usr/lib/python2.4/site-packages/django/core/handlers/base.py", line 64, in get_response
    response = middleware_method(request)

  File "/usr/lib/python2.4/site-packages/django/middleware/common.py", line 57, in process_request
    urlresolvers.resolve(request.path)

  File "/usr/lib/python2.4/site-packages/django/core/urlresolvers.py", line 292, in resolve
    return get_resolver(urlconf).resolve(path)

  File "/usr/lib/python2.4/site-packages/django/core/urlresolvers.py", line 231, in resolve
    for pattern in self.urlconf_module.urlpatterns:

  File "/usr/lib/python2.4/site-packages/django/core/urlresolvers.py", line 255, in _get_urlconf_module
    raise ImproperlyConfigured, "Error while importing URLconf %r: %s" % (self.urlconf_name, e)

ImproperlyConfigured: Error while importing URLconf 'urls': [Errno 25] Inappropriate ioctl for device