Hi all, Replacing 'import doctest' with 'from zope.testing import doctest' will fix: http://www.zope.org/Collectors/Zope3-dev/501 The patch to replace all 'zope.app' subpackages is here: http://zissue.berlios.de/z3/zope-app-doctest.diff Let me commit this to 3.3 branch and merge to trunk. Regards, Baiju M