KeyError: '__sentry__' in create_from_text

[cabacon]

Traceback (most recent call last):
File "/usr/local/lib/python2.6/dist-packages/gunicorn-0.13.1-py2.6.egg/gunicorn/workers/sync.py", line 97, in handle_request
respiter = self.wsgi(environ, resp.start_response)
File "/usr/local/lib/python2.6/dist-packages/django/core/handlers/wsgi.py", line 252, in call
response = middleware_method(request, response)
File "/usr/local/lib/python2.6/dist-packages/raven-0.5-py2.6.egg/raven/contrib/django/middleware.py", line 21, in process_response
result = client.create_from_text('Http 404', request=request, level=logging.INFO, logger='http404')
File "/usr/local/lib/python2.6/dist-packages/raven-0.5-py2.6.egg/raven/base.py", line 263, in create_from_text
**kwargs
File "/usr/local/lib/python2.6/dist-packages/raven-0.5-py2.6.egg/raven/contrib/django/init.py", line 58, in process
kwargs['data']['sentry']['user'] = user_info
KeyError: 'sentry'

You have, on line 35
if 'data' not in kwargs:
kwargs['data'] = {}

But then, on line 58, you reference
kwargs['data']['sentry']['user'] = user_info

You need to set
kwargs['data']['sentry'] = {}
also, before using it.