[mod_python] python path and 3.3

I just grabbed the latest SVN snapshot and installed it and I'm having a 
problem with importing now.

Using the publisher handler I'm trying to get my app from 3.1.4 going, 
but 3.3 no longer seems to want to find my lib/ subdirectory.  I've 
added the following to my .htaccess:

PythonPath "['.']+sys.path"

I can display the sys.path in an app and it includes ".", but it just 
doesn't find a subdirectory "lib"

Is there something new with the module loading that I should be aware of?