FAQ

Common Python GUI Questions, Answered

Answers to our users most frequently answered questions, from licensing, packaging and libraries, to PyQt tips and tricks.

Showing articles for All (218) PyQt6 (89) PySide6 (86) PyQt5 (208) Tkinter (86) PySide2 (89)

How Trademarks Affect Open Source Software

How do trademarks relate to copyrights and what are the implications for open source software

PyQt vs. Tkinter — Which Should You Choose for Your Next GUI Project?

What Are the Major Differences Between these Popular Python GUI Libraries

Handle command-line arguments with PyQt6/PySide6

Allow users to customize your application at launch

Can You Charge for Open-Source Software?

Making Money from Open-Source Projects

Which Python GUI library should you use?

Comparing the Python GUI libraries available in 2023

Q&A: Why do I need to pass sys.argv or [] when creating an instance of QApplication?

Using command-line arguments to configure Qt

Understanding the GPL and "Copyleft"

When Are Two Open Source Software Licenses Incompatible?

The Basics of Software Copyrights

Why Do You Need to Bother With Licensing at All?

PyQt5 vs PyQt6

What are the differences, and is it time to upgrade?

PySide2 vs PySide6

What are the differences, and is it time to upgrade?

Using Postgres with Qt & Python on Windows, fixing QPSQL driver not loaded

Setting PATH to use the Postgres library
PyQt5

Drag & drop widgets with PyQt

Sort widgets visually with drag and drop in a container

Simple threading in PyQt/PySide apps with .start() of QThreadPool

How to move Python functions/methods & PyQt/PySide slots onto separate threads

Search a QTablewidget and select matching items

Finding and selecting matching items in a QTableWidget

Q&A: How to show a custom cursor on a PyQtGraph plot?

Changing the OS cursor and implementing a custom crosshair

Q&A: How to fix widgets appearing as separate windows?

Understanding Qt parents and layouts and the effect on widget position

Q&A: How can I enable editing on a QTableView?

Modifying your model to allow editing of your data source
PyQt5

Tableview delete rows works only one time

Published 19.07.2021
PySide6

PySide6.QtCore.QThreadPool().start() (only one signature)

Published 06.07.2021
PyQt6

Strange error in PyQt6 (not rendering radial gradients)

Published 09.06.2021

Is it possible to access system env vars in Qt?

Published 03.06.2021

Can you develop web apps with pyQT? if not what is best for python web development?

Published 26.05.2021
PyQt5

Editing QTableView cells

Allowing users to update the data in a model view

Matplotlib with QtQuick (QML)

Published 23.05.2021

QWidget::setLayout: Attempting to set QLayout "" on Window "", which already has a layout

Published 21.05.2021
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