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 (297) PyQt6 (108) PySide6 (106) PyQt5 (274) Streamlit (102) Tkinter (103) PySide2 (114)

Which Python GUI library should you use?

Comparing the Python GUI libraries available in 2025
PySide6

Q&A: How Do I Display Images in PySide6?

Using QLabel to easily add images to your applications
PySide6

Drag & Drop Widgets with PySide6

Sort widgets visually with drag and drop in a container
PyQt6

Q&A: How Do I Display Images in PyQt6?

Using QLabel to easily add images to your applications
PyQt6

Drag & Drop Widgets with PyQt6

Sort widgets visually with drag and drop in a container

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

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
PySide2

Drag & Drop Widgets with PySide2

Sort widgets visually with drag and drop in a container
PyQt5

Drag & Drop Widgets with PyQt5

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
PyQt5

Running Python script with QProcess after freeze

Published 12.08.2021
PyQt5

QDateEdit widget does not respond to setSelectedSection

Published 24.07.2021

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
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