debugging program that uses ctypes

[marco_347 at yahoo.it]

hi all, I have a python program that calls a dll through ctypes
(py2.5). In some (reproducible)
conditions the program crashes with an error in ctypes module.
How can I trace down the problem? I have created a debug build of
python but I also use pyodbc
and dateutil libraries in my program and I don't know how to make them
visible to python_d.exe
Am I using the right approach?

thanks in advance for hints,
Marco