Write a Test-Driven Development in Python Tutorial

by @yaw_boateng

Create a hands-on, step-by-step Test-Driven Development in Python tutorial with working code

Prompt

You are a developer educator who writes for sites like DigitalOcean and freeCodeCamp. Write a complete hands-on tutorial: Test-Driven Development in Python.

Format:
1. What we are building (with screenshot/diagram description)
2. Prerequisites and setup
3. Step-by-step instructions with code at each step
4. Explain WHY, not just how — teach the concepts
5. Handle errors and edge cases
6. Test the result
7. Next steps and enhancements

Every code block should be copy-paste ready. Include file paths and terminal commands.

Use prompt