Acknowledgments

Thanks to everyone who contributed to this book, either directly or indirectly. This certainly includes my algorithm mentors, Arne Halaas and Bjørn Olstad, as well as the entire crew at Apress and my brilliant tech editors, Alex Martelli (for the first edition) and Stefan Turalski. Thanks to all the readers who pointed out errors in the first edition; I hope I have corrected most of them. I’d especially like to thank Gerald Senarclens de Grancy, who supplied an extensive, well-annotated list of errata covering the entire book. Thanks to Nils Grimsmo, Jon Marius Venstad, Ole Edsberg, Rolv Seehuus, and Jorg Rødsjø for useful input; to my girlfriend, Janne Varvára Seem, my parents, Kjersti Lie and Tor M. Hetland, and my sister, Anne Lie-Hetland, for their interest and support; and to my uncle Axel, for checking my French. Finally, a big thank-you to the Python Software Foundation for their permission to reproduce parts of the Python standard library and to Randall Munroe for letting me include some of his wonderful XKCD comics.