[Zope] crash on import: "multiple definitions of symbol _initSplitter"

[Brenda Larcom]

As per the EventFolder installation instructions, I am trying to
import EventFolder.zexp into the Products folder.  When I type in this
filename and click Import, Zope crashes, and I see this message in the
window in which I ran start:

dyld: /usr/local/bin/python multiple definitions of symbol _initSplitter
/usr/local/Zope/lib/python/Products/PluginIndexes/TextIndex/Splitter/ZopeSplitter/Splitter.so definition of _initSplitter
/usr/local/Zope/lib/python/SearchIndex/Splitter.so definition of _initSplitter

This crash is entirely repeatable.  I can Add a Tutorial, which seems
to import things from ZopeTutorialExamples.zexp, so I don't think the
problem is with all importing.  EventFolder.zexp is in the same
directory as ZopeTutorialExamples.zexp, that being import in my Zope
root.  After a few random tries, I am not finding other products which
require me to import anything into the Products folder, so I don't
know if other similar products work.

I cannot find any reference to this problem on zope.org, in the
archives for this list, on the Zope Newbies site, in the EventFolder
FAQ, or via google.  So, here I am.  Hopefully this is the right
place.

Versions of stuff that seems to be involved:

Zope 2.4.0b3 
Mac OS X 10.0.4, on a UFS partition
python 2.1.1
EventFolder 1.31

Ideas, anyone?

Brenda