Python and Gtk cross-platform?

[Travis Oliphant]

> 
> > Hello,
> > 
> > Are Python programs source code cross-platform between Linux and Win32 using
> > the Gtk GUI toolkit?  In other words, using the Gtk toolkit will Python
> > programs run identically without changes on both platforms?
> > 
> > Thanks!
> 
> No.
> 
> Gtk was designed for the X window system.
> 

I don't think this is quite correct.  Gtk was designed on top of GDK so
that it could be ported if GDK were ported.  There is a well-tested
X-windows port of GDK, and a "beta" Win32 port.   I have not heard of a
Mac-port, but it is potentially doable.

Gtk is a cross-platform toolkit, by design, but the underlying GDK has
only been extensively tested on X-windows. 

-Travis