Well I guess I thinking that the investment in learning GTK/Gnome has more potential far-reaching benefit. wxPython - and I am not being denigrating in the slightest - is more the big fish in the littlish Python pond.
I haven't reached this conclusion myself. Wx is not a Python technology. It's a C++ library, and a lot of C++ coders use it from within C++. Then you have bindings from other languages, like Python. wxPython is one of these projects. Bittorrent is one of those wildly popular Python applications that uses it. At the OSCONs I've managed to attend (2003, 2004), wxPython attracted a high degree of interest and attendance. We've seen some exciting completed works making use of it. I've not seen similar enthusiasm for pyGTK. This might be the big-fish-in-a-small-pond syndrome, but, as I mentioned, I'm not ready to form a judgment along those lines. Part of what gives me pause is the whole .NET/Mono business. If managed code and IronPython become the new way to code GUI apps cross-platform, then it's the .NET API I should be studying. Under the hood, that might mean GTK+ on Linux. But the API will be essentially the same as Microsoft's.
I did choose to take wxPython-dev list off my "reply all" since I'm not looking to raise hackles, or even defend my choices.
That's fine with me. I was mainly looking for feedback re the Vpython concept (any way to integrate that into the wx event loop?).
The PyGTK thing just happens to be where things are leading me personally. Its partly because VPython on Linux uses GTK and I would like to know it better for that reason. And its partly because ubuntu has helped re-ignite a long dormant interest in Linux as a desktop working environment, and I see GTK/Gnome as the Big Pond in that respect.
This is where my .NET/Mono question surfaces again: behind Gnome is Ximian and behind Ximian is Novelle. And in the middle of it all is Miguel de Icaza. http://www.novell.com/linux/ximian.html What's Miguel going to do? I've seen evidence that he's excited by Python. However, I'm quite distant from the action. I don't trust myself to have informed opinions about all this stuff.
And you in particular will be happy to know that GTK2 *does* have a skins feature ;)
Art
Does it support non-rectangular window-like objects? In wx, there's a demo with Tux floating over the desktop, kind of like the my Halflife skin for the Windows Media Player. Tux isn't as tough-looking. But looks can be deceiving. Kirby