- 01. Course Map
- 02. Secret Message (Story)
- 03. Secret Message (Output)
- 04. Planning a Secret Message
- 05. Opening a File
- 06. Changing Filenames
- 07. Checking os Documentation
- 08. Renaming Files
- 09. What Is the Error?
- 10. Squashing the Bug
- 11. Rename Troubles
- 12. Where Does os Come From?
- 13. Reading os Documentation
- 14. Secret Message Mini-Project
- 15. Edge Case
- 16. When Functions Do Not Suffice