acknowledgments

Writing this book was far more difficult and time-consuming than either of us expected. We each have many people to thank.

Alex thanks Rob for conceiving the book and asking him to coauthor it, Kyle for her understanding while he spent his nights and weekends at his desk, and his Wealthfront colleagues for their support initially and along the way.

Rob thanks Jonathan Larkin (and many others at Quantopian) for igniting his interest in Python, Scott Feier for scrutinizing the manuscript and catching numerous errors, and Marty Reider for helping him set up and maintain the GitHub repository.

We both thank the entire Manning team, especially Doug Rudder for his incredible patience and helpful suggestions. Thank you also to our project manager Deirdre Hiam, our copy editor Tiffany Taylor, our proofreader Mike Beady, and Marcus Young for his technical proofing.

We would also like to thank all of our reviewers: Ashutosh Sanzgiri, Christopher Kottmyer, Claudiu Schiller, Dan Sheikh, David Cronkite, David Patschke, Eli Mayost, Keerthi Shetty, Krzysztof Kamyczek, Laud Bentil, Laurens Meulman, Marco Carnini, Marco Seguri, Marcus H. Young, Maxim Volgin, Mohana Krishna, Oliver Korten, Oren Zeev-Ben-Mordehai, Philip Patterson, Rani Sharim, Richard Vaughan, Salil Athalye, Seung-jin Kim, Simone Sguazza, Sriram Macharla, and Vatsal Desai, your suggestions helped to make this a better book.