I have a Django app running on Heroku/Cedar, configured as per the instructions at https://devcenter.heroku.com/articles/django
Using gunicorn as per Heroku\'s instr
If you are deploying to Heroku without using whitenoise (which I would suggest), definitely use dj_static https://pypi.python.org/pypi/dj-static!
I spent the past 3 hours trying to serve my files to heroku and dj_static worked within a matter of 2 minutes.