def installWxMnemonicsCheckers(options):
    # Buttons and menu entries must have keyboard mnemonics. Some static
    # labels need them too, but we don't check for those at the moment.
    try:
        import wx
    except ImportError:
        return

    class wxMnemonicsCheckedButton(wx.Button):
        def __init__(self, parent, id=-1, label=wx.EmptyString, pos=wx.DefaultPosition, size=wx.DefaultSize, style=0, validator=wx.DefaultValidator, name=wx.ButtonNameStr):
            if label and '&' not in label:
                raise AssertionError('Button labels must have mnemonics')
            super(wxMnemonicsCheckedButton, self).__init__(parent, id, label, pos, size, style, validator, name) 

        def Create(self, parent, id=-1, label=wx.EmptyString, pos=wx.DefaultPosition, size=wx.DefaultSize, style=0, validator=wx.DefaultValidator, name=wx.ButtonNameStr):
            if label and '&' not in label:
                raise AssertionError('Button labels must have mnemonics')
            super(wxMnemonicsCheckedButton, self).Create(parent, id, label, pos, size, style, validator, name) 

        def SetLable(self, label):
            if label and '&' not in label:
                raise AssertionError('Button labels must have mnemonics')
            super(wxMnemonicsCheckedButton, self).SetLabel(label)
            
    wx.Button =  wxMnemonicsCheckedButton