Okken - Python testing with Pytest: simple, rapid, effective, and scalable

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I first need to thank Michelle, my wife and best friend. I wish you could see the room I get to write in. In place of a desk, I have an antique square oak dining table to give me plenty of room to spread out papers. Theres a beautiful glass-front bookcase with my retro space toys that weve collected over the years, as well as technical books, circuit boards, and juggle balls. Vintage aluminum paper storage bins are stacked on top with places for notes, cords, and even leftover book-promotion rocket stickers. One wall is covered in some velvet that we purchased years ago when a fabric store was going out of business. The fabric is to quiet the echoes when Im recording the podcasts. I love writing here not just because its wonderful and reflects my personality, but because its a space that Michelle created with me and for me. She and I have always been a team, and she has been incredibly supportive of my crazy ideas to write a blog, start a podcast or two, and now, for the last year or so, write this book. She has made sure Ive had time and space for writing. When Im tired and dont think I have the energy to write, she tells me to just write for twenty minutes and see how I feel then, just like she did when she helped me get through late nights of study in college. I really, really couldnt do this without her.

I also have two amazingly awesome, curious, and brilliant daughters, Gabriella and Sophia, who are two of my biggest fans. Ella tells anyone talking about programming that they should listen to my podcasts, and Phia sported a Test & Code sticker on the backpack she took to second grade.

There are so many more people to thank.

My editor, Katharine Dvorak, helped me shape lots of random ideas and topics into a cohesive progression, and is the reason why this is a book and not a series of blog posts stapled together. I entered this project as a blogger, and a little too attached to lots of headings, subheadings, and bullet points, and Katie patiently guided me to be a better writer.

Thank you to Susannah Davidson Pfalzer, Andy Hunt, and the rest of The Pragmatic Bookshelf for taking a chance on me.

The technical reviewers have kept me honest on pytest, but also on Python style, and are the reason why the code examples are PEP 8compliant. Thank you to Oliver Bestwalter, Florian Bruhin, Floris Bruynooghe, Mark Goody, Peter Hampton, Dave Hunt, Al Krinker, Lokesh Kumar Makani, Bruno Oliveira, Ronny Pfannschmidt, Raphael Pierzina, Luciano Ramalho, Frank Ruiz, and Dmitry Zinoviev. Many on that list are also pytest core developers and/or maintainers of incredible pytest plugins.

I need to call out Luciano for a special thank you. Partway through the writing of this book, the first four chapters were sent to a handful of reviewers. Luciano was one of them, and his review was the hardest to read. I dont think I followed all of his advice, but because of his feedback, I re-examined and rewrote much of the first three chapters and changed the way I thought about the rest of the book.