如何在pyqt5中一键制作qlineedit的动态行和列？

from PyQt5.QtWidgets import QApplication, QWidget, QLineEdit, QGridLayout, QPushButton

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

    def initUI(self):
        self.gridLayout = QGridLayout()
        self.setLayout(self.gridLayout)
        self.addButton = QPushButton("Add Line")
        self.addButton.clicked.connect(self.addLineEdit)
        self.gridLayout.addWidget(self.addButton, 0, 0)

    def addLineEdit(self):
        row = self.gridLayout.rowCount()
        lineEdit = QLineEdit()
        self.gridLayout.addWidget(lineEdit, row, 0)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MyWindow()
    window.show()
    sys.exit(app.exec_())