wxPython vs. pyQt

[RM]

Of course, the licensing terms may still be too restrictive for those
that want to create comercial closed source applications and can't
afford the comercial license of Qt.  That is why, for many, wxPython
will remain the preferred choice.

Being that you are inclined use Xemacs and xterm for your development,
I don't think you will have too much trouble with either one.
Currently, I think the choice between Qt and wx boils down to this:

Type of app   -   Choice   -   Reason

GPL or Company use only app - Qt - It is easier, cleaner, etc.
Commercial Closed Source  - Qt - Don't mind the license cost.
Any type  - wx - It is free.

Other (lesser, I think) considerations, however, may bee the appearance
of the app.  On linux/KDE you may prefer the Qt native look.  On
Linux/GNOME you may prefer wx's GTK native look.  On Windows, wx is
completely native, while I can't speak for Qt's look since I have never
seen it, but I know it is not completely native looking.