Auto add dashes to Line Edit PyQt5

Question

Is it possible to auto add dashes to PyQt5 Line Edit while the user enters the data, for example if the user wants to enter 123456789012345, while the user enters it should be entered like 12345-67890-12345. Also if the user enters - at the right position it should be accepted in. This was fairly achievable in tkinter, using re(question here), but I think it might be able to do the same with Qt too.

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

Ps: I have designed the GUI inside of Qt Designer.

Answer 1

inputMask : QString

This property holds the validation input mask.

More https://doc.qt.io/qt-5/qlineedit.html#inputMask-prop

import sys
from PyQt5 import QtCore, QtGui, QtWidgets


class MainWindow(QtWidgets.QMainWindow):
    def __init__(self):
        super().__init__()
        centralWidget = QtWidgets.QWidget()
        self.setCentralWidget(centralWidget)

        self.lineEdit = QtWidgets.QLineEdit()
        self.lineEdit.setAlignment(QtCore.Qt.AlignCenter)
        self.lineEdit.editingFinished.connect(self.editingFinished)
        
        self.lineEdit.setInputMask("999-9999999;.")                                 # +++
        
        grid = QtWidgets.QGridLayout(centralWidget)
        grid.addWidget(self.lineEdit) 
        
    def editingFinished(self):
        print(f"{self.lineEdit.text()} -> {self.lineEdit.text().replace('-', '')}")
        

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    app.setFont(QtGui.QFont("Times", 22, QtGui.QFont.Bold))
    w = MainWindow()
    w.show()
    sys.exit(app.exec_())