[PyQt] how to deselect radiobutton in pyqt5

[atlass218]

Hello;
I created radiobuttons (radioButton_degre, radioButton_ddm), checkBox(checkbox_confirmed) and a button "Reset" (pushButton_reset) with Qt Designer

when I click on the button, I want all radiobouttons and checkbox to become unselected.
the fonctions display_degre_unit and display_ddm_unit are not defined, to reduce the code for a simplified code

#!/usr/bin/python3
# -*- coding: utf-8 -*-

# PyQT5 :
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *


class MainApp(QMainWindow,FORM_CLASS) :
    def __init__(self,parent=None) :
        super(MainApp,self).__init__(parent)
        QMainWindow.__init__(self)
        self.setupUi(self)
		
		self.pushButton_reset.clicked.connect(self.initialize)
        self.radioButton_degre.toggled.connect(self.display_degre_unit)
        self.radioButton_ddm.toggled.connect(self.display_ddm_unit)

	def initialize(self):

		self.checkbox_confirmed.setCheckState(Qt.Unchecked)
		self.radioButton_degre.setChecked(False)
		self.radioButton_ddm.setChecked(False)
		

def main():
    app=QApplication(sys.argv)
    window=MainApp()
    window.show()
    app.exec_()

if __name__=='__main__' :
    main()

It works for the checkbox but does not work for radiobuttons

thanks for help