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Test-Driven Development with Python: Write Reliable and Maintainable Programs

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Write better code by testing first.

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.

164 pages, Kindle Edition

Published July 5, 2025

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