如何在每行的QTableWidget中设置互斥QRadioButton

from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QItemDelegate, QRadioButton

class RadioButtonDelegate(QItemDelegate):
    def __init__(self, parent=None):
        super().__init__(parent)

    def createEditor(self, parent, option, index):
        editor = QRadioButton(parent)
        editor.setAutoExclusive(True)
        editor.clicked.connect(self.commitAndCloseEditor)
        return editor

    def setEditorData(self, editor, index):
        value = index.data(Qt.EditRole)
        if value:
            editor.setChecked(True)

    def setModelData(self, editor, model, index):
        value = editor.isChecked()
        model.setData(index, value, Qt.EditRole)

    def commitAndCloseEditor(self):
        editor = self.sender()
        self.commitData.emit(editor)
        self.closeEditor.emit(editor, QItemDelegate.NoHint)

from PyQt5.QtWidgets import QApplication, QMainWindow, QTableWidget
from PyQt5.QtCore import Qt

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        table = QTableWidget(4, 3)
        delegate = RadioButtonDelegate(table)
        table.setItemDelegateForColumn(1, delegate)  # 应用到第2列

        self.setCentralWidget(table)

if __name__ == '__main__':
    app = QApplication([])
    window = MainWindow()
    window.show()
    app.exec_()