PyQT 4.6.2 question about radiobuttons

[News123]

Hi,

As you wll notice: I don't have a lot of GUI and only very litte
PyQT-experience.


I have a UI created with qt designer.

The UI contains a few named radio buttons in a button group.
( for example radioButton_one to radioButton_four )


I am unable locate a signal, that is fired whenever one of the
radiobuttons in a group have been changed.


however what I am able to is to connect the same slot to all
of the clicked events of a buttongroup


buttons = [
win.radioButton_one,
win.radioButton_two,
win.radioButton_three,
win.radioButton_four
]

for button in buttons:
    button.cloicked.connect( self._mymethod )


My questions are:

1.) Is there a signal in the buttongroup, that would fire?

2.) if not. What is the easiest way to get a list of all radiobuttons
belonging to a buttongroup


Thanks in advance for your any suggestions good pointers