Dear Patient Robin,
Got it. Thank you very much indeed.
(At the end I brute-forced, copying the wx and wxPython folders from
/Users/cohar/Documents/Python/wxPython-src-2.5.4.1/wxPython
into
/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages
which is probably not the way to do it, but it works.)
You can bet I made a textfile of all the steps so the next time there's an upgrade . . .
Thanks again.
Charles Hartman