[Pythonmac-SIG] cross platform GUI?

[John Schmitt]

So, in your collective experience, is tk actually useable to create decent
Mac applications that are also decent Windows applications?  I'd like to be
able to use wxpython or tk and also pygame (http://pygame.seul.org/) but I'd
like to target both Mac (OS9 and OSX) and Windows at the same time.  How do
you accomplish that?

I know this topic comes up often in comp.lang.python, but I want a real Mac
person's perspective rather that people who 'heard good things about
GTK/glade/wxwhatever' and think the Mac is just a GUI with a slightly
different color.

Thanks for your input.

John