如何添加自定义事件处理程序？

const button = document.querySelector('button');
button.addEventListener('click', function() {
  // 处理点击事件的代码逻辑
});

from PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.button = QPushButton('Click me', self)
        self.button.clicked.connect(self.handle_button_click)

    def handle_button_click(self):
        # 处理按钮点击事件的代码逻辑

app = QApplication([])
window = MainWindow()
window.show()
app.exec_()