Django-heroku-s3-bootstrap-demo is a project mainly written in Python, it's free.
Sample django project suitable for use with heroku. Uses twitter bootstrap and django-storages/boto for deploying static files to s3.
This is a sample project to demonstrate how to configure a heroku hosted django app to use s3 for static files. It uses the twitter bootstrap project to provide some boilerplate content.
You can read a description of the process in this blog post: http://iknuth.com/2011/10/deploying-a-django-app-to-heroku-with-easy-static-files-on-s3/
Create an s3 bucket and add your AWS keys and info to settings.py.
This command is run locally. No need to involve heroku.