![]() Installing dependencies in Linux tends to be much more straightforward than on other operating systems. While I use and recommend the Linux operating system (all the code in this book was first written and tested on Linux), I don’t provide Linux installation instructions. However, Kivy takes good care of its users, so it will probably be quite a long time before you have to work out the details. This can cause headaches later when things break and you don’t know what’s going on. A major one is that you, as the developer, don’t know exactly what they are doing. Quick installers have their downsides, though. You can use these to get up and running quickly. Luckily, Kivy has great installers for most operating systems. I can’t predict the myriad ways that things might go wrong for you. I don’t know what libraries you already have installed or how they conflict with each other. I don’t know what operating system you’re using. Regardless of which version of Python you choose, make sure you’re using Kivy version 1.8 or later.įrankly, writing about dependency setup is frustrating for me as well. However, most of them can be run unmodified on Python 2, and I have noted any differences in sidebars. I wrote the examples in this book to run in Python 3. Further, the tools used to deploy to both Android and iOS currently run only on Python 2. However, from an ease-of-use perspective, you are more likely to find that Python 2 is already installed on your computer and ready to go. ![]() From a developer’s point of view, I recommend using Python 3, as it is a simpler syntax, has a cleaner standard library, and will be more useful knowledge going into the future. You may be wondering which one you should use.Īs of version 1.8, which is used for the examples in this book, Kivy supports both Python 2 and Python 3 interpreters. The syntax and standard library have changed between the two versions, and both are quite popular. There are currently two active versions of Python: Python 2 and Python 3. As with any job description, you don’t have to completely fit this profile, but it will help you to understand who I’m thinking about and how you might differ. While I hope this book appeals to a diverspe array of developers, I have a specific audience in mind as I write it. I’ve chosen to develop a weather application with you, partially because it’s at the right complexity level, but mostly because there aren’t any decent open source weather applications in the F-Droid open source Android market! Each chapter presents a working program that you will expand on in subsequent chapters. You’ll be going step by step through Kivy basics to create and deploy a fully functional application. Whatever your reasons for studying Kivy, I’m glad you found this book. Kivy allows you to maintain a single application for numerous operating systems. Kivy replaces the horrible APIs of earlier graphical interfaces like HTML and CSS. Kivy is the only viable way to code in Python on mobile devices. Kivy has elegant built-in support for multitouch devices.
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