django none type object has no attribute status

Question

I get the following error from Django:

NoneType object has no attribute status_code

Here's a copy of the output from the log:

Environment:

Request Method: GET
Request URL: http://192.168.2.206:8080/institutes_admin/
Django Version: 1.1.1
Python Version: 2.6.5
Installed Applications:
['django.contrib.auth',
 'django.contrib.admin',
 'django.contrib.contenttypes',
 'django.contrib.markup',
 'django.contrib.sessions',
 'django.contrib.sites',
 'django.contrib.comments',
 'mysite.registration',
 'mysite.profiles',
 'mysite.epw',
 'mysite.remember_me',
 'mysite.avatar',
 'mysite.django_documents',
 'mysite.inlines',
 'mysite.blog',
 'mysite.forum',
 'tagging']
Installed Middleware:
('django.middleware.cache.UpdateCacheMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.cache.FetchFromCacheMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'mysite.remember_me.views.AutoLogout')


Traceback:
File "/usr/lib/pymodules/python2.6/django/core/handlers/base.py" in get_response
  92.                 response = callback(request, *callback_args, **callback_kwargs)
File "/usr/lib/pymodules/python2.6/django/utils/decorators.py" in _wrapped_view
  56.                 result = middleware.process_response(request, response)
File "/usr/lib/pymodules/python2.6/django/middleware/cache.py" in process_response
  80.         if not response.status_code == 200:

Exception Type: AttributeError at /institutes_admin/
Exception Value: 'NoneType' object has no attribute 'status_code'

Answer 1

The view that serves the institutes_admin URL is not returning a response, so the middleware is dying when it tries to cache it. You need to post the code of that view - and please do it here, not on a separate paste site.

Answer 2

Somewhere you've lost your response object.

If autologout has a process_response method, I'd look there. If you add the code of autologout and the view, it'll probably be very fast to find the problem.