Chapter 17: Traditional hosting (17d) 

Chapter 17: Heroku support (17c) 

Chapter 17: Email notification of application errors (17b) 

Chapter 17: Deploy command (17a) 

Chapter 16: Source code profiling (16b) 

Chapter 16: Logging of slow database queries (16a) 

Chapter 15: Unit tests with Selenium (15d) 

Chapter 15: API testing with the Flask test client (15c) 

Chapter 15: Unit tests with the Flask test client (15b) 

Chapter 15: Coverage metrics (15a)