We are pleased to announce the second edition of A Student’s Guide to Python for Physical Modeling ! The book will be available in early August, in time for fall classes. We have updated the book to reflect changes in the language, and we have added new material on methods that have become more prominent in scientific programming in recent years — such as data science and version control. The second edition is about 70 pages longer than the updated edition. However, we maintained the concise, hands-on approach of earlier editions and worked diligently to make the text clear and easy to follow. New Material Our first task was to bring everything up to date so that readers can build a working Python environment from scratch. Everything from installation instructions to screenshots have been brought up to date. We also developed and tested all code with the latest version of Python: Python 3.9. We made a deliberate effort to use simple constructs and standard libraries, so the code