from .dialog_sources.Ui_confirm_extend import Ui_extend_confirm from PySide6 import QtWidgets class ConfirmExtend(QtWidgets.QDialog, Ui_extend_confirm): def __init__(self, parent=None): super().__init__(parent) self.setupUi(self) def launch(): app = QtWidgets.QApplication([]) window = ConfirmExtend() window.show() app.exec()