Hagalund is a very basic Pyramid + MongoDB app. It is starting as simply the result of generating an app with the Pyramid/MongoDB scaffolding. Plus this README of course. Never underestimate the README.
This app can be deployed to Heroku. The Procfile, requirements.txt and so on are all present. However you will need to create the app with the Cedar stack (to get Python support):
heroku create --stack cedar
Additionally, you should provision a (free) MongoLab MongoDB database:
heroku addons:add mongolab:starter --app <app name>