Is Python 3 compatible with web.py?
WSGI is not yet compatible with Python 3 (see http://code.google.com/p/modwsgi/wiki/SupportForPython3X ), and therefore webpy is not.
I believe pjz said that WSGI is compatible with Python 3, not web.py. You can upgrade wsgiserver from the CherryPy repository and make some changes to web.py to run it in Python 3, but web.py is not ready for P3 at this time.
See https://groups.google.com/d/msg/webpy/Qa-U1kABk4w/WeOvy-V51sgJ for more details .