graphical installer

[Joe Van Dyk <joevandyk gmail com>]

I've been asked to create a GUI (runnable on RHEL3) that would prompt
the user with some questions (maybe via a wizard-like set of dialogs)
and then would install the appropriate RPMs based on the user's
questions.

Any suggestions on tools/languages for that?  Would I want to talk
directly to RPM libraries or would just running shell rpm commands
(and capturing the output) be probably all I need?

Initially, I'm thinking that Python/pygtk would do, combined with
shell commands for the RPM installation.  Sound reasonable?

Thanks,
Joe