QpushButton QTableWidget but when i add Menu action to button menu don't display why?

Question

This is the code i want to run .

i put QpushButton in QTableWidget by setCellWidget but when i add Menu action to the button the menu doesn't display why?

1.   p = QtWidgets.QPushButton("Test")
   

2.    menuf= QtWidgets.QMenu(p)
   

3.    p.setMenu(menuf)
   

4.    Op= QtWidgets.QAction(menuf)
   

5.    Pp= QtWidgets.QAction(menuf)
   

6.    _translate = QtCore.QCoreApplication.translate
   

7.    Op.setText(_translate("MainWindow", "Section"))
   

8.    Pp.setText(_translate("MainWindow", "Charge"))
   

9.    p.addAction(Op)
   

10.    p.addAction(Pp)
    

11.    self.tableWidget.setCellWidget(2,1,p)
    

12.    thingWidget = self.tableWidget.cellWidget(2,1)