Test-Driven Development with Python teaches you how to build reliable, maintainable software by writing tests before you write code. Whether you're working on a solo project or building production-ready applications, this hands-on guide shows you how to use TDD to catch bugs early, reduce technical debt, and write code that’s easier to change and scale.
With practical examples and step-by-step walkthroughs, you’ll learn how
Understand the TDD Red, Green, Refactor
Write unit tests using unittest and pytest
Structure projects with testing in mind
Use mocks, stubs, and fixtures to isolate behavior
Write integration and functional tests
Test web applications using tools like Selenium and Flask
Refactor safely with confidence
Build clean, testable code that’s easy to maintain
Each chapter is designed to be practical and beginner-friendly, guiding you from basic test cases to advanced testing strategies used in real-world software teams.
If you want to code with fewer bugs, work more confidently, and build systems that can evolve over time, Test-Driven Development with Python will show you how to do it—one test at a time.