Comment 1 for bug 572715

Someone has to look at the changes in pytz versions and figure out why we are getting test failures. At this stage we don't know if it is "test-only" problems or some API has changed. Without understanding the cause, we can only mark things as incompatible for now.

The Zope2 KGS suggests to use pytz 2010b as the latest compatible version. I think 2010g and later are all having problems.