from PyQt6.QtWidgets import QApplication, QMainWindow, QLabel import sys app = QApplication(sys.argv) window = QMainWindow() window.setWindowTitle("My First App") window.setCentralWidget(QLabel("Hello PyQt6!")) window.show() app.exec() # Starts the event loop Use code with caution.

: A Python function that executes when the signal is triggered. 3. Advanced UI Design with Qt Designer

PyQt6 is currently the leading framework for building professional, cross-platform desktop applications with Python. If you are searching for a , you are likely looking for a structured, portable way to master GUI development.