**Topic: Custom Widgets and Components** In this example, we'll create a custom analog clock widget using PyQt6. This widget will display an analog clock with hour, minute, and second hands. We'll also add some animations to make the clock more engaging. **AnalogClockWidget.py** ```python import sys from PyQt6.QtWidgets import QApplication, QWidget from PyQt6.QtGui import QPainter, QPen, QBrush from PyQt6.QtCore import Qt, QRect, QTimer,lauf import math import time class AnalogClockWidget(QWidget): def __init__(self): super().__init__() self.angle = 0 self.hour_angle = 0 self.minute_angle = 0 self.second_angle = 0 self.timer = QTimer(self) self.timer.timeout.connect(self.update_time) self.timer.start(1000) # update every second def update_time(self): current_time = time.localtime() self.hour_angle = (current_time.tm_hour % 12) * 30 + current_time.tm_min * 0.5 self.minute_angle = current_time.tm_min * 6 + current_time.tm_sec * 0.1 self.second_angle = current_time.tm_sec * 6 self.update() def paintEvent(self, event): painter = QPainter(self) painter.setRenderHint(painter.Antialiasing) # Draw clock face painter.setPen(QPen(Qt.GlobalColor.black, 2)) painter.setBrush(QBrush(Qt.GlobalColor.white)) painter.drawEllipse(20, 20, 300, 300) # Draw hour hand painter.setPen(QPen(Qt.GlobalColor.black, 6)) painter.drawLine(170, 170, 170 + math.sin(math.radians(self.hour_angle)) * 80, 170 - math.cos(math.radians(self.hour_angle)) * 80) # Draw minute hand painter.setPen(QPen(Qt.GlobalColor.black, 4)) painter.drawLine(170, 170, 170 + math.sin(math.radians(self.minute_angle)) * 120, 170 - math.cos(math.radians(self.minute_angle)) * 120) # Draw second hand painter.setPen(QPen(Qt.GlobalColor.red, 2)) painter.drawLine(170, 170, 170 + math.sin(math.radians(self.second_angle)) * 140, 170 - math.cos(math.radians(self.second_angle)) * 140) if __name__ == '__main__': app = QApplication(sys.argv) window = AnalogClockWidget() window.resize(350, 350) window.show() sys.exit(app.exec()) ``` **Explanation** This code creates a custom analog clock widget with hour, minute, and second hands. The clock face is drawn using a `QPainter` object, and the hands are drawn using trigonometric calculations to determine their positions based on the current time. **Illustration** Here's an illustration of the clock widget: ``` +-----------------------+ | | | Clock Face | | | +-----------------------+ | | | | Hour | Minute | | Hand | Hand | | | | +-----------------------+ | | | | Second | | | Hand | | | | | +-----------------------+ ``` The hour hand is the shortest hand, the minute hand is the middle hand, and the second hand is the longest hand. **Packaging and Distribution** To package and distribute the clock widget, you can use tools like PyInstaller or cx_Freeze. Here's an example of how to use PyInstaller: ```bash pyinstaller --onefile AnalogClockWidget.py ``` This will create a standalone executable file that can be run on any platform that supports PyQt6. **Tips and Variations** * To add more features to the clock widget, you can add additional hands or displays to show the date, temperature, or other information. * To customize the appearance of the clock widget, you can use different colors, fonts, or shapes for the clock face and hands. * To make the clock widget more interactive, you can add buttons or other controls to adjust the time or settings.