Top Python GUI Frameworks in 2025

https://jobhop.co.uk/blog/411341/top-python-gui-frameworks-in-2025

Explore the top Python GUI frameworks in 2025 that simplify the creation of powerful and interactive desktop applications. From PyQt to Kivy, discover the best tools for building seamless user interfaces with Python.

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I just added functionality to my color converter and color manager written in PyQt. Now I can save colors as lists and output as JSON files.

I have been making progress with my color converter/creation application built with PyQt. I just added a 4 point gradient tool this morning. This application will allow you to create, convert and manage all your colors in one place.

Once you start developing your PyQt application, as you add more features you can quickly run out of space for your widgets. This is where using a QTabWidget might be useful. A tab widget provides a tab bar and a "page area" that is used to display pages related to each tab.

https://doc.qt.io/qtforpython-5/PySide2/QtWidgets/QTabWidget.html

The #QScrollBar widget is a scroll bar that enables the user to access parts of a document that is larger than the widget used to display it.
https://doc.qt.io/qtforpython-5/PySide2/QtWidgets/QScrollBar.html

The #QScrollArea widget is used to display the contents of a child widget within a frame. If the widget exceeds the size of the frame, the view can provide scroll bars so that the entire area of the child widget can be viewed.
https://doc.qt.io/qtforpython-5/PySide2/QtWidgets/QScrollArea.html

A PyQt5 application to convert colors from one color format to various others.

The PyQt pen join style defines how joins between two connected lines are shown.

1. The BevelJoin style fills the triangular notch between the two lines.

2. The MiterJoin style extends the lines to meet at an angle.

3. The RoundJoin style fills a circular arc between the two lines.

https://doc.qt.io/qtforpython-5/PySide2/QtGui/QPen.html#join-style

PyQt pen has cap styles that define how the end points of the lines are drawn.

1. The SquareCap (default) style is a square line end that covers the end point and extends beyond it by half the line width.

2. The FlatCap style is a square line end that does not cover the end point of the line.

3. The RoundCap style is a rounded line end covering the end point.

https://doc.qt.io/qtforpython-5/PySide2/QtGui/QPen.html#cap-style

PyQt provides several built-in pen styles.

1. SolidLine
2. DashLine
3. DotLine
4. DashDotLine
5. DashDotDotLine
6. CustomDashLine

https://doc.qt.io/qtforpython-5/PySide2/QtGui/QPen.html#pen-style

QPainter is generally faster for simple, direct drawing operations while
QGraphicsScene is slower because it provides more options when managing larger number of 2D graphical items. QGraphicsScene provides optimized item lookup and spatial indexing.

One way to make money online as a programmer.

Step 1: Learn Python and/or PyQt (or any other programming language)
Step 2: Develop an open source application that solves a specific problem.
Step 3: Develop plugins or extensions that extend the application functionality. (Companies might sponsor addition features. If this happens, disregard Step 4 below.)
Step 4: Sell the additional functionality as a product or service.

MOC is a console music player that supports themes. After a few hours coding with Python and PyQt, I already have a working application that creates custom themes for MOC.

I spent a few hours on New Years Eve trying to listen to my USB microphone using Python3, PyQt5 and pyAudio. I can play WAV files using pyAudio, but fetching my microphone is becoming a bit challenging.

Lets see if I can get this working New Years Day. Time to read the documentation.
https://people.csail.mit.edu/hubert/pyaudio/docs/

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With a huge diff of +3,972 / −3,667 lines, rewriting the project tree of @novelwriter to use a model/view set from the previous approach that synced changes between the data class and the view widget's internal model didn't result in less code.

But I think it resulted in an easier to maintain code, and hopefully more stable over time. Syncing the project state between two locations is just a little error-prone, and Qt's default implementation is also a bit buggy.

My latest coding project is moving the project data structure of @novelwriter from a Qt standard tree view into a custom model/view set.

The old implementation based on a QTreeWidget is a shadow copy of the project data, which needs to be kept in sync and is the most error prone part of the code.

The new model/view set holds the proper tree structure in memory and handles consistency directly in the hierarchy. But there is *so* much functionality to port over!

Did you know that ChatGPT answers programming questions? Can this be the trend in the future?

When I needed help with a PyQt question, I visit the PyQt IRC channel on https://libera.chat/ but you do not always get a response to your question right away.

While waiting, I ask ChatGPT the same PyQt question, and do you believe ChatGPT gave me an answer? Can this be the trend in the future?

Any Qt + Python devs out there with any experience on calling deleteLater() from the Python side?

I have some costly dialogs I want cleared on close, and so far I've been running deleteLater() in the closeEvent, which is clearly a little risky. I do get the very rare segfault especially if I close one particular dialog which has a QTimer singleShot call. If the deleteLater() is called when it is running, I get a RunTImeError.