Catching stderr output from graphical apps

[gry at ll.mit.edu]

Linux -2.4.20 (x86), Python 2.3.3.
I did exactly as you suggested.
After the stderr.write, a window pops up with title "Error Stream from
run of errorwindow.pyc".
The window is otherwise blank.
Nothing more happens when I do the "x=7+nosuchvariable", I just get
the next python ">>>" prompt, but no error messages.
When I try to exit the python, e.g. sys.exit(), it hangs and I have to
Control-C.
After the control-C, the "Error Stream..." window goes away.

Any more suggestions?  Perhaps we should take this to email, instead of
newsgroup?
This *is* something I would like to be able to use, if we can get it
working.

-- George