Pyqt6 Docs -

def on_button_clicked(): print("Button was clicked!") button.clicked.connect(on_button_clicked) Lambda with parameters button.clicked.connect(lambda: print("Custom action")) 6. Layout Management Never use fixed positions. Layouts automatically resize and reposition widgets.

1. What is PyQt6? PyQt6 is a set of Python bindings for Qt6, a powerful cross-platform application framework. It allows you to create desktop applications with native-looking GUIs using Python. pyqt6 docs

from PyQt6.QtWidgets import QHBoxLayout, QVBoxLayout, QPushButton vbox = QVBoxLayout() vbox.addWidget(QPushButton("Top")) vbox.addWidget(QPushButton("Bottom")) Horizontal layout hbox = QHBoxLayout() hbox.addWidget(QPushButton("Left")) hbox.addWidget(QPushButton("Right")) Nested layouts main_layout = QVBoxLayout() main_layout.addLayout(hbox) main_layout.addLayout(vbox) 7. Common Widgets Quick Reference | Widget | Purpose | |--------|---------| | QLabel | Text/image display | | QPushButton | Clickable button | | QLineEdit | Single-line text input | | QTextEdit | Multi-line text input | | QComboBox | Dropdown selection | | QCheckBox | Toggle option | | QRadioButton | Exclusive choice | | QSlider | Value selection | | QProgressBar | Progress indication | 8. Key Differences from PyQt5 | PyQt5 | PyQt6 | Notes | |-------|-------|-------| | QtCore.pyqtSignal | QtCore.pyqtSignal | Same syntax | | QtCore.pyqtSlot | QtCore.pyqtSlot | Same syntax | | QtWidgets.QApplication | QtWidgets.QApplication | Same | | exec_() | exec() | Method renamed | | QRegExp | QRegularExpression | Regex engine changed | | Enum usage | Qt.AlignmentFlag | Enums require full flag specification | def on_button_clicked(): print("Button was clicked