Error para revisar demo RibbonBar en wxPyton

Soy principiante. Me interesa conocer la demo de RibbonBar pero al parecer no tengo acceso a la libreria images. El error es: Traceback (most recent call last): File "D:\eclipse\workspace\Ejemplos\wxRibbon.py", line 670, in frm = RibbonFrame(None, -1, "wx.ribbon Sample Application", size=(800, 600)) File "D:\eclipse\workspace\Ejemplos\wxRibbon.py", line 88, in init home = RB.RibbonPage(self._ribbon, wx.ID_ANY, "Examples", CreateBitmap("ribbon")) File "D:\eclipse\workspace\Ejemplos\wxRibbon.py", line 47, in CreateBitmap bmp = getattr(images, imgName).Bitmap AttributeError: module 'images' has no attribute 'ribbon'