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

Object-oriented programming


Python supports object-oriented programming (OOP). OOP supports reusability; that is, code that was written earlier can be reused for making large applications, instead of starting from scratch. The term object in OOP refers to a variable or instance of a class, where a class is a template or blueprint of a structure that consists of methods and variables. The variables in the class are called data members, and the methods are called member functions. When instances or objects of a class are made, the objects automatically get access to data members and methods.

Creating a class

The class statement is used for creating a class. The following is the syntax for creating a class:

class class_name(base_classes):
    statement(s)

Here, class_name is an identifier to identify the class. After the class statement comes the statements that make up the body of the class. The class body consists of different methods and variables to be defined in that class.

You can make an...