Python3与Qt6 GUI编程：入门到精通

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《Beginning PyQt: A Hands-on Approach to GUI Programming with PyQt6》是一本涉及Python3和Qt6入门至精通的英文版书籍。该书涵盖了丰富的代码案例，非常值得学习。随着PyQt新版本的推出，也带来了新的开发工具。该书的最新版本旨在探索这些新工具，并且依然面向初学者。读者将学习如何使用Python编程语言和PyQt6工具包，创建图形用户界面(GUI)。书中强调对用户需求的关注，这是提高可用性的关键。作者Joshua M Willman在书中强调，开始学习比任何其他事情都更重要。编写GUI可以被视为编程和图形设计技能的结合。该书的第二版旨在提供实践的方法，帮助读者踏上GUI编程的旅程。ISBN-13（pbk）:978-1-4842-7998-4，ISBN-13（电子版）:978-1-4842-7999-1，版权所有©2022年Joshua M Willman。

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Introduction

With new PyQt versions come new tools to play with. The latest edition aims to explore

some of those ideas while still being aimed toward beginners. You will explore how to

use the Python programming language, along with the PyQt6 toolkit, to create graphical

user interfaces (GUIs).

Just getting started is more important than anything else. Coding a GUI can be

considered a combination of programming and graphic design skills. An awareness of a

user’s needs is also crucial for better usability and graphical appearance. Programming

a GUI is often a matter of selecting the right component, referred to as widgets in PyQt,

to complete a task and then applying the necessary programming skills to make them

operational.

One goal is to balance the theory behind good design practices with more hands-on,

learn-as-you-go style coding examples. New concepts and PyQt classes are introduced in

each chapter, and later chapters sometimes build upon previous ones.

Who Should Read This Book

This book is targeted to Python developers who are looking to begin creating graphical

user interfaces and want to utilize the latest version of PyQt to get started. Having prior

knowledge of PyQt or other Python GUI toolkits is not necessary to begin using this

book. It is, however, recommended that you understand the fundamentals of Python and

Python syntax and are comfortable using Object-Oriented Programming (OOP).

How This Book Is Organized

The latest edition of Beginning PyQt begins by introducing you to the basic ideas behind

GUI development. Chapter 1 will get you on your way to installing and understanding

how to use the latest version of PyQt.

Chapters 2 and 3 teach how to add widgets to your applications, thereby adding

more and more functionality to your projects. Both chapters introduce different widgets,

such as QLabel, QCheckBox, and QLineEdit, and give examples and ideas for using

them. Chapter 3 will also introduce you to PyQt’s signals and slots mechanism for

handling events.

Chapter 4 focuses on layout managers for arranging widgets.

After learning about different widgets and layouts, Chapter 5 guides you through

examples that help you to create classical GUIs with menus and toolbars.

Chapter 6 presents style sheets for altering the look of your applications.

Chapter 7 discusses how to handle events that occur in a GUI, such as a user

clicking on the mouse. You’ll also discover how to create your own signals and how to

reimplement event handlers.

Since Qt also includes its own graphical user interface to help you create GUIs, we

will take a look at how to use Qt Designer in Chapter 8.

From there, we’ll start learning more advanced concepts.

Chapter 9 introduces you to using the clipboard to copy and paste information

between applications.

Chapter 10 shows how to handle data using PyQt’s item-based convenience classes.

You’ll also find out how to add basic drag-and-drop functionality to widgets.

Chapter 11 introduces you to painting, graphics, and animation.

Customization is important in PyQt. Chapter 12 shows you how to build and use

your own custom widgets.

Chapter 13 talks about Qt Quick for building fluid and dynamic applications.

Chapter 14 shows how to use build user interfaces that handle data with SQL

databases and PyQt’s Model/View architecture.

Chapter 15 discusses multithreaded programming to avoid your applications from

freezing.

Chapter 16 contains extra example projects to help you continue to gain extra

practice and insight into creating applications with PyQt.

The Appendix includes additional information about different PyQt modules and

classes. An additional coding example can also be found in the Appendix.

InTroduCTIon

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