如何确保两个标签中的一个在小部件上并排获得focusInEvent？

from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QHBoxLayout
from PyQt5.QtCore import Qt

class MyWidget(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()

    def initUI(self):
        # 创建两个标签
        self.label1 = QLabel('Label 1', self)
        self.label2 = QLabel('Label 2', self)

        # 设置焦点策略
        self.label1.setFocusPolicy(Qt.StrongFocus)
        self.label2.setFocusPolicy(Qt.StrongFocus)

        # 创建水平布局并添加标签
        hbox = QHBoxLayout()
        hbox.addWidget(self.label1)
        hbox.addWidget(self.label2)

        # 设置布局
        self.setLayout(hbox)

        # 连接焦点事件
        self.label1.focusInEvent = self.onFocusIn
        self.label2.focusInEvent = self.onFocusIn

    def onFocusIn(self, event):
        # 获取当前获得焦点的标签
        label = event.widget()
        print(f'Focus in: {label.text()}')

if __name__ == '__main__':
    app = QApplication([])
    widget = MyWidget()
    widget.show()
    app.exec_()