title: Django : 'WSGIRequest' object has no attribute 'user'? - AuthenticationMiddleware & SessionAuthenticationMiddleware are in sequence
body: <p>Getting the following error while try to access the django admin panel.</p>
  
  <pre><code>Environment:
  
  Request Method: GET
  Request URL: http://localhost:8000/admin/
  
  Django Version: 1.9.8
  Python Version: 2.7.10
  Installed Applications:
  ['django.contrib.admin',
   'django.contrib.auth',
   'django.contrib.contenttypes',
   'django.contrib.sessions',
   'django.contrib.messages',
   'django.contrib.staticfiles',
   'bookapp']
  Installed Middleware:
  ['django.middleware.common.CommonMiddleware',
   'django.middleware.csrf.CsrfViewMiddleware']
  
  Traceback:
  
  File "/Library/Python/2.7/site-packages/django/core/handlers/base.py"     in get_response
    149.                     response =         self.process_exception_by_middleware(e, request)
  
  File "/Library/Python/2.7/site-packages/django/core/handlers/base.py" in get_response
    147.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
  
  File "/Library/Python/2.7/site-packages/django/contrib/admin/sites.py" in wrapper
    265.                 return self.admin_view(view, cacheable)(*args, **kwargs)
  
  File "/Library/Python/2.7/site-packages/django/utils/decorators.py" in _wrapped_view
    149.                     response = view_func(request, *args, **kwargs)
  
  File "/Library/Python/2.7/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
    57.         response = view_func(request, *args, **kwargs)
  
  File "/Library/Python/2.7/site-packages/django/contrib/admin/sites.py" in inner
    233.             if not self.has_permission(request):
  
  File "/Library/Python/2.7/site-packages/django/contrib/admin/sites.py" in has_permission
    173.         return request.user.is_active and request.user.is_staff
  
  Exception Type: AttributeError at /admin/
  Exception Value: 'WSGIRequest' object has no attribute 'user'
  </code></pre>
  
  <p>Here is my middleware settings in settings.py</p>
  
  <pre><code>MIDDLEWARE_CLASSES = [
  'django.middleware.security.SecurityMiddleware',
  'django.contrib.sessions.middleware.SessionMiddleware',
  'django.middleware.common.CommonMiddleware',
  'django.middleware.csrf.CsrfViewMiddleware',
  'django.contrib.auth.middleware.AuthenticationMiddleware',
  'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
  'django.contrib.messages.middleware.MessageMiddleware',
  'django.middleware.clickjacking.XFrameOptionsMiddleware',
  ]
  </code></pre>
  
  <p>I have also tried with clearing cache like cleared migrations and     deleted database. But it won't work for me.</p>
  
  <p>Can anybody knows what's the issue here?</p>