Django Admin Interface - Privileges On Development Server
Finally, I found the issue:
admin.autodiscover()
was commented out in the project's urls.py for some reason. (I may have done that trying to get the project to work in a more recent version of django) - So admin.site.register was never called and the app_dict never filled. index.html template of django.contrib.admin then returns 

You don't have permission to edit anything.

or it's equivalent translation (which I find confusing, given that the permissions are correct, only no models were added to the admin dictionary.
I hope this may help anyone running into a similar problem
I have an old project running (Django 1.6.5, Python 2.7) live for several years. I have to make some changes and have set up a working development environment with all the right django and python requirements (packages, versions, etc.)
Everything is running fine, except when I am trying to make changes inside the admin panel. I can log on fine and looking at the database (sqlite3) I see my user has superuser privileges. However django says "You have no permissions to change anything" and thus not even displaying any of the models registered for the admin interface.
I am using the same database that is running on the live server. There I have no issues at all (Live server also running in development mode with DEBUG=True has no issues) -> I can only see the history (My Change Log) - Nothing else
I have also created a new superuser - but same problem here.
I'd appreciate any pointers (Maybe how to debug this?)