import wx

class MainFrame(wx.Frame):
    def __init__(self, parent, title):
        super(MainFrame, self).__init__(parent, title=title)
        
        self.cb1 = wx.CheckBox(self, label='Első')
        self.cb2 = wx.CheckBox(self, label='Második')
        self.cb3 = wx.CheckBox(self, label='Harmadik')
        
        self.Bind(wx.EVT_CHECKBOX, self.onChecked)

        vbox = wx.BoxSizer(wx.VERTICAL)
        vbox.Add(self.cb1)
        vbox.Add(self.cb2)
        vbox.Add(self.cb3)
        
        self.SetSizer(vbox)
        self.Layout()
        
    def onChecked(self, event):
        cb = event.GetEventObject()
        print(cb.GetLabel(), cb.GetValue)

class SimpleApp(wx.App):
    def OnInit(self):
        self.frame = MainFrame(None, title='váltógomb')
        self.frame.Show()
        return True

app = SimpleApp()
app.MainLoop()