Add a method to a gtk class?

[Wolfnoliir]

On 29/04/2010 17:03, Joe Riopel wrote:
> On Thu, Apr 29, 2010 at 11:43 AM, Wolfnoliir <wolfnoliir at gmail.com> wrote:
>> I would like to add a method to the gtk.TextBuffer class to save a text
>> buffer to a file, but I get an error:
> 
> I don't know gtk, but can you inherit from the TextBuffer class create
> your own TexBuffer subclass with the save_to_file method?

I suppose I could but the point of adding a method is to make things
simpler (than having a separate function) so I don't really want to do that.