def METHOD_NAME(self, number):
    print('Front Belt # ',number, " pressed")
    self.w.belt_5.setEnabled(True)
    self.w.belt_6.setEnabled(True)
    self.w.belt_7.setEnabled(True)            
    self.w.belt_8.setEnabled(True)
    backnumber = number + 4
    if (backnumber == 5):
        self.w.belt_5.setEnabled(False)                
    elif (backnumber == 6):
        self.w.belt_6.setEnabled(False)
    elif (backnumber == 7):
        self.w.belt_7.setEnabled(False)
    elif (backnumber == 8):
        self.w.belt_8.setEnabled(False)   
    print("Disabling Back Number ", backnumber)