Is it possible (and wise) to extend the None-type ?

[Stef Mientki]

hello,

I've the idea that I always have a lot of useless code in my programs,
like the next example.

  def _On_Menu_File_Open ( self, event = None ):
    if event :
     event.Skip ()

instead of

  def _On_Menu_File_Open ( self, event = None ):
   event.Skip ()

So I would like to extend the None-type (if that's possible),
with a dummy Skip() method.

Is it wise to do ?
If not what are the disadvantages ?

thanks,
Stef Mientki