A browser like that it is the vpApp package (see ftp.cwi.nl). The
main problem with it is that it requires X11/Motif and that the Python
Motif bindings (or Motif itself) aren't very stable -- the only
configuration where vpApp is known to work so far is SGI IRIX.
I think it would be welcome it someone wrote a similar browser using
the STDWIN gaphics library, or possibly the new Tk interface (which is
an exciting toy, by the way!).
--Guido van Rossum, CWI, Amsterdam <Guido.van.Rossum@cwi.nl>