PyUnicodeUCS4_AsUnicode error

[fjs205 at gmail.com]

When I try to import gtk, or even start some programs that use Python I
get the error:

"ImportError: /usr/lib/python2.4/site-packages/gtk-2.0/gobject.so:
undefined symbol: PyUnicodeUCS4_AsUnicode"

Can anyone shed some light on this?

FWIW, I have reinstalled python, tried v2.3.4 instead of 2.4,
reinstalled GTK, searched for a unicode library problem (I reinstalled
libunicode too).

Thanks for any assistance.