This book contains large parts that are based on the book How To Think Like a Computer Scientist --- Learning with Python 3. The following is a copy of the license of this book.
Copyright (C) Peter Wentworth, Jeffrey Elkner, Allen B. Downey and Chris Meyers. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with Invariant Sections being Foreword, Preface, and Contributor List, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".
The required sections are provided below.
As required by the "GNU Free Documentation License", this updated book is available under the same license. The updates are Copyright (C) Kim Mens, Siegfried Nijssen, Charles Pecheur.