Comment 6 for bug 675064

"In progress" means that the bug is confirmed and that the assigne
committer is actively working to implement a fix. This bug fits neither
of those criteria: I can't reproduce your segfault on a "from source" Python
and a fresh checkout, and I'm certainly not going to check in your
patch without a way to reproduce it.

I recommend that you raise this issue to the distribution which made
the packages you are using: the ZTK team doesn't have any visibility
into the kinds of changes they may have made when packaging either
Python 3 or zope.interface. You could do more fault isolation, e.g.
by using the "system" python but working inside a downloaded tarball
(or SVN checkout).