FluentQt for Python

FluentQt is the official PySide6 compatibility distribution for Fluent-Qt, a cross-platform Fluent / WinUI-style C++ component library built on Qt Widgets. The widgets remain native C++ objects; Shiboken6 exposes the same implementation to Python instead of reimplementing the UI library.

The C++ library remains the primary project. Python support is optional and targets Qt 6.

Install

python -m pip install FluentQt

Published wheels install the matching PySide6-Essentials and shiboken6 runtime automatically.

Minimal example

import sys

import fluentqt
from PySide6.QtCore import Qt
from PySide6.QtWidgets import QApplication, QVBoxLayout, QWidget
from fluentqt.basicinput import Button
from fluentqt.windowing import Window


fluentqt.prepare_high_dpi_application()
app = QApplication(sys.argv)
fluentqt.initialize_resources()
app.setFont(fluentqt.font_for_role(fluentqt.FontRole.Body))

window = Window()
window.setWindowTitle("FluentQt Hello World")
window.resize(480, 320)

content = QWidget()
layout = QVBoxLayout(content)
button = Button("Hello from FluentQt", content)
button.setFluentStyle(Button.ButtonStyle.Accent)
layout.addWidget(button, 0, Qt.AlignCenter)

window.setContentWidget(content)
window.show()
sys.exit(app.exec())

Package contents

  • Native Qt Widgets with the Fluent design contract and Light/Dark themes.
  • Qt properties, signals, enums, Python subclassing, and typed package stubs.
  • Explicit ownership contracts for hosted widgets, overlays, models, and native windows.
  • A single _fluentqt extension so themes, resources, and Qt object identity stay process-wide.

The example application is distributed separately as FluentQt-Gallery, keeping demo code and assets out of the reusable UI library wheel.

Compatibility

Official wheels target CPython 3.11–3.13 with matched Qt, PySide6, and Shiboken6 6.9.3 runtimes.

Platform Architectures
Windows x64, ARM64
macOS 12+ x64, ARM64
Linux x64; ARM64 for CPython 3.12–3.13

The source binding keeps Qt/PySide/Shiboken 6.2.4 as its minimum compatibility baseline. All Qt for Python components and the C++ Qt SDK must use the same version and architecture.

Project links

FluentQt is released under the MIT License. Microsoft product names and Fluent design references are used only to describe compatibility and visual style.

Project links

Data verified by PyPI on Aug 21, 2026
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

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Latest release

1 maintainer

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Avatar for calvinhxx from gravatar.com calvinhxx

Credits

Author: calvinhxx

GitHub Statistics

Data verified by PyPI on Aug 21, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License expression

MIT
View SPDX License List

Requires

Python <3.14, >=3.11

Tags

Qt PySide6 Fluent Design WinUI widgets

Classifiers

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