I use FortyTwo.py script from
http://www.uni-karlsruhe.de/~Bjoern.Giesler/Download/FortyTwo.tar.gz

It worked find under RH5.2 but fails with segmentaion fault
in PyDict_New() after upgrade to RH6.0. This persists after
I upgraded to python-1.5.2-7 from RH6.1
GDB trace follows. What is interesting, the program works
fine if I download python-1.5.2-7.src.rpm and compile it
manually, enabling Tcl/Tk support

GDB output
myprompt> gdb /usr/bin/python
(gdb) run
>>> execfile("/usr/local/lib/FortyTwo/FortyTwo.py")
Traceback (innermost last):
  File "<stdin>", line 1, in ?
  File "/usr/local/lib/FortyTwo/FortyTwo.py", line 460, in ?
    from FWidgets import *
ImportError: No module named FWidgets
>>>

or analyzing the coreTraceback (innermost last):
prompt> gdb /usr/lib/python core
.....
Core was generated by
`python/usr/local/lib/FortyTwo/FortyTwo.py'
..............
#0  0x806fc42 in PyDict_New ()
(gdb)