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

Traceback (most recent call last):

  File "/usr/lib64/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 228, in handler
    return ModPythonHandler()(req)

  File "/usr/lib/python2.4/site-packages/django/core/handlers/modpython.py", line 191, in __call__
    self.load_middleware()

  File "/usr/lib/python2.4/site-packages/django/core/handlers/base.py", line 41, in load_middleware
    raise exceptions.ImproperlyConfigured, 'Error importing middleware %s: "%s"' % (mw_module, e)

ImproperlyConfigured: Error importing middleware tudelft.submit.middleware: "No module named middleware"