PyQt6 GUI Development Tutorial – Build Beautiful Desktop Apps with Python
PyQt6 is a set of Python bindings for the Qt6 application framework. It allows you to build professional, cross-platform desktop applications using Python.
In this tutorial, you’ll learn how to:
- Install PyQt6
- Create your first GUI window
- Add widgets and handle events
- Use layout managers
- Build menus and dialogs
- Design UI with Qt Designer
- Package your app for distribution
📺 Watch the Full Tutorial on YouTube:
PyQt6 GUI App Development Tutorial
💻 What is PyQt6?
PyQt6 is a Python binding of the popular Qt6 C++ GUI framework. It brings all the features of Qt to Python developers:
- Rich widget set
- Signals and slots system
- Layout management
- Cross-platform capabilities
- Access to multimedia, OpenGL, WebEngine, and more
🚀 Why Use PyQt6?
- Cross-platform: Run the same app on Windows, macOS, and Linux.
- Mature and stable: Qt has been used for decades in enterprise-level applications.
- Powerful tools: Qt Designer, resource compiler, and translation tools included.
🧰 Getting Started
Install PyQt6
pip install PyQt6
Your First PyQt6 App
from PyQt6.QtWidgets import QApplication, QLabel, QWidget
app = QApplication([])
window = QWidget()
window.setWindowTitle('Hello PyQt6')
window.setGeometry(100, 100, 280, 80)
label = QLabel('<h1>Hello, World!</h1>', parent=window)
label.move(60, 15)
window.show()
app.exec()
Save this as hello.py and run:
python hello.py
🛠️ Layouts, Widgets, and Events
Use QVBoxLayout, QHBoxLayout, QPushButton, QLineEdit, etc., to build interactive interfaces. Handle events via the clicked signal and slot mechanism.
button.clicked.connect(self.on_click)
Design UI with Qt Designer
Install:
bash
pip install pyqt6-tools
Run Designer:
bash
pyqt6-tools designer
Design your .ui file, then convert to Python:
bash
pyuic6 yourfile.ui -o ui_yourfile.py
📦 Packaging Your App
Use tools like pyinstaller:
bash复制编辑pip install pyinstaller
pyinstaller --onefile yourapp.py
Distribute your app as an executable!
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