I just found out that if one is developing a wxPython app, this:

menuFont = wx.Font(12, wx.DEFAULT, wx.NORMAL, wx.NORMAL) # 12pt font

Will be flagged as an error by ty, wx.DEFAULT and wx.NORMAL being some kind of wxPython place holder that wxPython can interpret into a value later on, not a value just yet. Can you get past that kind of late binding?