www.it-ebooks.info Kivy Blueprints Build your very own app-store-ready, multi-touch games and applications with Kivy! Mark Vasilkov BIRMINGHAM - MUMBAI www.it-ebooks.info Kivy Blueprints Copyright © 2015 Packt Publishing All rights reserved No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews Every effort has been made in the preparation of this book to ensure the accuracy of the information presented However, the information contained in this book is sold without warranty, either express or implied Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals However, Packt Publishing cannot guarantee the accuracy of this information First published: January 2015 Production reference: 1230115 Published by Packt Publishing Ltd Livery Place 35 Livery Street Birmingham B3 2PB, UK ISBN 978-1-78398-784-9 www.packtpub.com www.it-ebooks.info Credits Author Project Coordinator Mark Vasilkov Nidhi Joshi Reviewers Proofreaders Takumi Adachi Martin Diver Joe Dorocak Maria Gould Raphael Pierzina Paul Hindle Edward C Delaporte V Joanna McMahon Commissioning Editor Usha Iyer Indexers Hemangini Bari Rekha Nair Acquisition Editor Priya Subramani Vinay Argekar Content Development Editor Kirti Patil Graphics Sheetal Aute Production Coordinator Technical Editors Nilesh R Mohite Arwa Manasawala Rahul Shah Cover Work Nilesh R Mohite Copy Editors Roshni Banerjee Gladson Monteiro Karuna Narayanan www.it-ebooks.info About the Author Mark Vasilkov is a software craftsman—or engineer—whichever you prefer He specializes in Python and JavaScript development, mostly related to web and mobile applications, and has 10 years of experience in hacking stuff together so that it mostly works For what it's worth, Mark is a Russian Israeli This very book was partially written in a bomb shelter due to Hamas shooting long-range rockets (containing warheads with up to 200 kg explosives each) at Tel Aviv Israel is a beautiful country, inspiring everyone in the region to something truly remarkable and idiosyncratic www.it-ebooks.info About the Reviewers Takumi Adachi is currently working as an Android developer for Applocation based in Victoria, British Columbia, Canada He enjoys programming, kendo, cycling, and video games He is a proponent for open source and strictly uses the MIT license for his personal projects and code He specializes in Java, Python, JavaScript, and web markup languages such as HTML and CSS He is exposed to a wide range of technologies such as JavaScript, Python, HTML, CSS, SQL, SQLite, Vagrant, AngularJS, PHP, node.js, Git, REST, JSON, Bash, Linux, OS X, Windows, nginx, VirtualBox, Visual Studio 2013, Java, Excel, Android, and so on He has helped review the book, Kivy Blueprints, and hopes to continue reviewing books for Packt Publishing I would like to thank my cousin, Justin, parents, teachers, and employers for providing me with opportunities to grow and develop, and supporting me in my endeavors Joe Dorocak, whose Internet moniker is Joe Codeswell, is a very experienced programmer He enjoys creating readable code that implements the project requirements efficiently and understandably He considers writing code akin to writing poetry He prides himself on the ability to communicate clearly and professionally He considers his code to be communication, not only with the machine platforms upon which it will run, but with all those human programmers who will read it in the future www.it-ebooks.info He has been employed either as a direct employee or as a contractor by IBM, HP, GTE/Sprint, and other top-shelf companies He is presently concentrating on app and web project consulting, coded primarily, but not exclusively, in Python and JavaScript For more details, please check Joe's LinkedIn profile at https://www linkedin.com/in/joedorocak Raphael Pierzina is currently working as a development lead at Mackevision (http://mackevision.com/) in Germany He is responsible for a Python/PySidebased standalone application for defining and managing complex configuration logic data sets for data-based visualization in terms of code reviews and supervision He holds a bachelor's degree in virtual design and specializes in computer graphics and interactive applications Raphael is passionate about idiomatic Python code and development techniques such as TDD He enjoys contributing to open source projects such as Cookiecutter (https://github.com/audreyr/cookiecutter) and occasionally posts on his personal blog (http://www.hackebrot.de/) about various topics, including MaxScript, comic books, and his adventures in the world of Linux I would like to thank my loving family and my close friends for their support over the course of this project Thank you for your understanding when I had little time to spare I wish to express my gratitude to the team at Packt Publishing for providing me with the opportunity to be a part of this amazing book Edward C Delaporte V leads a software development group at the University of Illinois and has contributed to the documentation of the Kivy framework He is thankful to all those whose contributions to the open source community made his career possible, and he hopes this book helps to attract enthusiasts to software development www.it-ebooks.info www.PacktPub.com Support files, eBooks, discount offers, and more For support files and downloads related to your book, please visit www.PacktPub.com Did you know that Packt offers eBook versions of every book published, with PDF and ePub files available? You can upgrade to the eBook version at www.PacktPub.com and as a print book customer, you are entitled to a discount on the eBook copy Get in touch with us at service@packtpub.com for more details At www.PacktPub.com, you can also read a collection of free technical articles, sign up for a range of free newsletters, and receive exclusive discounts and offers on Packt books and eBooks TM https://www2.packtpub.com/books/subscription/packtlib Do you need instant solutions to your IT questions? PacktLib is Packt's online digital book library Here, you can search, access, and read Packt's entire library of books Why subscribe? • Fully searchable across every book published by Packt • Copy and paste, print, and bookmark content • On demand and accessible via a web browser Free access for Packt account holders If you have an account with Packt at www.PacktPub.com, you can use this to access PacktLib today and view entirely free books Simply use your login credentials for immediate access www.it-ebooks.info www.it-ebooks.info To my wife, Natalia www.it-ebooks.info .. .Kivy Blueprints Build your very own app-store-ready, multi-touch games and applications with Kivy! Mark Vasilkov BIRMINGHAM - MUMBAI www.it-ebooks.info Kivy Blueprints Copyright... prompt, >>>, should appear Type import kivy The command should print a message similar to [INFO] Kivy v1.8.0 • On a Windows box: Double-click kivy. bat inside the Kivy package directory Type python... a dependency (Linux, Ubuntu in particular) Installing and running Kivy Kivy can be downloaded from the official site (http:/ /kivy. org/); just choose an appropriate version and follow the instructions