如何自动排序QTreeWidget列？

from PyQt5.QtWidgets import QApplication, QTreeWidget, QTreeWidgetItem

app = QApplication([])

tree = QTreeWidget()
tree.setColumnCount(3)

# 添加数据
item1 = QTreeWidgetItem(["Item1", "Value1", "Value2"])
item2 = QTreeWidgetItem(["Item2", "Value3", "Value4"])
item3 = QTreeWidgetItem(["Item3", "Value5", "Value6"])

tree.addTopLevelItem(item1)
tree.addTopLevelItem(item2)
tree.addTopLevelItem(item3)

# 设置排序列和排序方式
tree.sortColumn = 1
tree.sortOrder = Qt.AscendingOrder

tree.show()
app.exec_()