Book Image

Qt5 Python GUI Programming Cookbook

By : B. M. Harwani
Book Image

Qt5 Python GUI Programming Cookbook

By: B. M. Harwani

Overview of this book

PyQt is one of the best cross-platform interface toolkits currently available; it's stable, mature, and completely native. If you want control over all aspects of UI elements, PyQt is what you need. This book will guide you through every concept necessary to create fully functional GUI applications using PyQt, with only a few lines of code. As you expand your GUI using more widgets, you will cover networks, databases, and graphical libraries that greatly enhance its functionality. Next, the book guides you in using Qt Designer to design user interfaces and implementing and testing dialogs, events, the clipboard, and drag and drop functionality to customize your GUI. You will learn a variety of topics, such as look and feel customization, GUI animation, graphics rendering, implementing Google Maps, and more. Lastly, the book takes you through how Qt5 can help you to create cross-platform apps that are compatible with Android and iOS. You will be able to develop functional and appealing software using PyQt through interesting and fun recipes that will expand your knowledge of GUIs
Table of Contents (20 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Creating a cross-platform Python script using Kivy


Kivy is a Python library that supports multitouch devices, including smartphones. You can create cross-platform Python applications using Kivy as Kivy runs on Android, iOS, Linux, and Windows. With Kivy, you can also access mobile APIs, like the Android API to use the camera of your phone, compass sensor, and so on.

Kivy is an open source, cross-platform that is written in Python and Cython. Because Kivy has several modules that are written in C, it requires Cython for its working. Cython is a compiler that gives you the power of Python as well as C programming. You can write C functions and use C libraries in Cython for writing efficient code.

Getting started

Let's create a very simple application that consists of a single button with the caption Python On Android Device. The Kivy application needs to be made in a separate folder and its main program has to be named main.py.

So, let's create a folder named helloworld. Write the following code...