mod_python 3.3 causes a segmentation fault in Apache when evaluating type(req.finfo) where req is the request object passed to a mod_python handler.
In case you wondered who on earth would try to evaluate that expression, Winpdb does, if you try to expand the req object in the namespace viewer.
But don’t you worry, there is a work around available. The latest Winpdb version in the SVN repository tiptoes around that nasty request member. You can get it from: winpdb.svn.sourceforge.net/viewvc/winpdb/trunk/winpdb/ or with the following command:
svn co https://winpdb.svn.sourceforge.net/svnroot/winpdb/trunk/winpdb winpdb
Thanks to Greg for reporting this problem in the forum.
A tip of the day for conclusion: When debugging a mod_python script on a forking Apache server, each request may be handled by a different processes. To be able to debug such a script you may need to re-attach Winpdb to the new process with each request or configure your Apache server to use a single process for the purpose of debugging.