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Test-Driven Development with Python, 3rd Edition
book

Test-Driven Development with Python, 3rd Edition

by Harry Percival
October 2025
Intermediate to advanced
712 pages
14h 24m
English
O'Reilly Media, Inc.
Content preview from Test-Driven Development with Python, 3rd Edition

Acknowledgments

Lots of people to thank, without whom this book would never have happened, and/or would have been even worse than it is.

Thanks first to “Greg” at $OTHER_PUBLISHER, who was the first person to encourage me to believe it really could be done. Even though your employers turned out to have overly regressive views on copyright, I’m forever grateful that you believed in me.

Thanks to Michael Foord, another ex-employee of Resolver Systems, for providing the original inspiration by writing a book himself, and thanks for his ongoing support for the project. Thanks also to my boss Giles Thomas, for foolishly allowing another one of his employees to write a book (although I believe he’s now changed the standard employment contract to say “no books”). Thanks also for your ongoing wisdom and for setting me off on the testing path.

Thanks to my other colleagues, Glenn Jones and Hansel Dunlop, for being invaluable sounding boards, and for your patience with my one-track-record conversation over the last year.

Thanks to my wife, Clementine, and to both my families—without whose support and patience I would never have made it. I apologise for all the time spent with my nose in the computer on what should have been memorable family occasions. I had no idea when I set out what the book would do to my life (“Write it in my spare time, you say? That sounds reasonable…​”). I couldn’t have done it without you.

Thanks to my tech reviewers, Jonathan Hartley, Nicholas Tollervey, and Emily ...

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Publisher Resources

ISBN: 9781098148706Errata Page