+Django Authentication Module
+A small Django authentication backend for OpenID, based on the openid2rp package.
+It is automatically installed together with openid2rp.
+In order to get the Django database magic right, you need to add 'openid2rp.django' to your
+INSTALLED_APPS list in setup.py. You also need to add 'openid2rp.django.auth.Backend' to the
+list of authentication backends. Example::
+ AUTHENTICATION_BACKENDS = (
+The database is extended with one table for the OpenID identifier storage.
+Therefore, make sure that you call "python manage.py syncdb" ones
+after installing this package.
+In contrast to most other Django OpenID authentication packages, this one
+does not try to cover any view aspects. It also keeps the nature of openid2rp
+by assuming that you know how OpenID works.
+Since the Django authentication framework is not prepared for a multi-step auth scenario with several
+inputs and outputs, you need to call a preparation function ("preAuthenticate") from the module
+before you can use the Django authenticate() method. make sure that you use the correct keyword
+arguments in the authenticate() call.
+Session storage is based on a module-scope variable. I was to lazy to decode the openid2rp session dict
+for the database storing and lifetime checking. There is also no Nonce checking so far.
+The explicit modeling of each exceptional case hopefully allows you to realize an according
+reaction in your view rendering.