There seems to be a bug somewhere, not sure where? as you can see from the video I dont get an error when running. but an error does exist if I run in script debug mode?
If you do get an error then change the first line to TimerPanel = wx.wxPanel (wx.NULL, wx.wxID_ANY, wx.wxDefaultPosition, wx.wxSize( 500,300 )) - Thanks Brett for the fix.
DazTheGas