Create GUI Applications with Python and Qt6 (6th Edition, PyQt6)

This is the 6th Edition of Create GUI Applications with Python & Qt, updated for 2026 & PyQt6.

Building applications with PyQt6 doesn't have to be hard, you just need to know the right way to do it. In this book Martin Fitzpatrick takes you through the fundamental building blocks of PyQt applications and show you how PyQt6 uses the event loop to handle and respond to user input. Martin has been teaching and using PyQt for 14 years, helping tens of thousands of developers to bring their applications to life.

You learn how to design beautiful UIs with Qt Designer and customize the look and feel of your applications with Qt Style Sheets and custom widgets. Implement MVC architecture to build maintainable applications. Use Qt's ModelViews framework to connect data sources to your widgets, including SQL databases, numpy and pandas data tables, to build-data driven application. Visualize data using matplotlib & PyQtGraph and connect with external data sources to build live dashboards. Learn how to use threads and processes to manage long-running tasks and communicate with external services. Parse data and visualize the output in logs and progress bars.The book includes usability and architectural tips to help you build maintainable and usable PyQt6 applications from the start. Finally, once your application is ready to be released, discover how to package it up into professional-quality installers, ready to ship.

Contents

• PyQt6 Widgets
• Signals, slots & events
• GUI Layouts
• Toolbars & Menus
• PyQt6 Dialogs
• Windows
• Qt Designer
• PyQt6 Themes, Styles, Palettes & Icons
• MVC architecture
• Model View Architecture
• PyQt6 Table views with numpy & pandas
• Database, SQL models
• Extending PyQt6 Signals
• System tray & Menus
• PyQt6 threading, thread pools & processes
• Plotting with PyQtGraph & matplotlib
• Packaging & distribution PyQt6 apps
• Example PyQt6 apps
• Translating C++ to Python
• Managing paths & resources

The book includes

• 700+ pages of hands-on PyQt6 exercises
• 200+ code examples to experiment with
• Support forum for all readers
• Includes mulitple example PyQt6 apps
• Compatible with Python 3.9+
• Code free to reuse in your own projects