Heroku is an implementation of the platform-as-a-service (PaaS) concept that can be used to more easily deploy Python applications.
Migrating your Django Project to Heroku is a full tutorial on using Heroku to run Django web applications. It includes instructions on converting from MySQL to PostgreSQL if necessary as well as how to properly handle your settings files.
Heroku's official Python documentation is fantastic and walks through deploying WSGI applications in short order.
Fix errors in your Python code before your users see them by monitoring with Rollbar.
Deploy web apps with the Ansible configuration management tool.
Build microservices with Docker, Flask & React in this great course.