PyQt5

PyQt5 is a Python binding of the cross-platform GUI toolkit Qt. Applications built with PyQt5 will run on any platform supported by Qt & Python including Windows, OS X, Linux, iOS and Android.

Created by Riverbank Computing, PyQt is free software (GPL licensed) and has been in development since 1999. PyQt5 was released in 2016 and last updated in October 2021.

For a complete guide to desktop application development with Python & PyQt5, see the PyQt5 tutorial and PyQt5 book Create Simple GUI Applications with Python & Qt.

Explore PyQt5

PyQt5
PyQt5

ModuleNotFoundError: No module named 'fbs_runtime'

How to fix the 'fbs_runtime' import error when running fbs projects outside of the fbs environment
PyQt5

Opening a subwindow from a button event

Published 11.05.2020
PyQt5

Packaged installer file sizes

Published 11.05.2020
PyQt5

.parent() vs. parent class in PowerBar example

Published 11.05.2020
PyQt5

QDialog blocking main thread?

Published 11.05.2020
PyQt5

QWebEngine in Qt Designer

Published 11.05.2020
PyQt5

Updating progressbar from QRunner

Published 11.05.2020

Using fbs for packaging while creating the GUI with Qt Designer?

Published 11.05.2020
PyQt5

Weather app multiple locations?

Published 11.05.2020

Why are signals defined as class variables?

Understanding why PyQt6 and PySide6 signals live on the class, not in __init__
PyQt5

Clearing the canvas in QPainter

Published 10.05.2020
PyQt5

Coordinates on `QPainter`

Published 10.05.2020
PyQt5

Elegant shutdown of running threads

Published 10.05.2020
PyQt5

How to Pass Additional Arguments to a QRunnable Worker Function

Solving common errors when passing parameters to threaded Worker functions in PyQt5
PyQt5

How to start/stop or pause running threads?

Published 10.05.2020
PyQt5

Painter example Undo/Ctrl-Z

Published 10.05.2020
PyQt5

Pause a running worker thread

Put a running task on hold, waiting for the UI
PyQt5

Resizing the QPainter canvas

Published 10.05.2020
PyQt5

Threading dict not callable error

Published 10.05.2020

What does @pyqtSlot() do?

Is the pyqtSlot decorator even necessary?
PyQt5

Why Omitting "if role == Qt.DisplayRole" Makes Your QAbstractTableModel Look Strange

Understanding Qt roles and why your table suddenly shows checkboxes, checkmarks, and filled squares
PyQt5

How to Add Custom Widgets to Qt Designer

Use widget promotion to integrate your own Python widgets into Qt Designer layouts
PyQt5

"Fix: AttributeError 'MainWindow' object has no attribute 'onWindowTitleChange' in PyQt5"

Published 07.05.2020
PyQt5

Complex data in PyQt models

Published 07.05.2020
PyQt5

Customizing size of a PyQtGraph

Published 07.05.2020
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