[Zope] zope 2.7 && ZEO errors

[G. Clifford Williams]

I've installed zope 2.7 (gmake instance) on OpenBSD-current when I try to 
execute a "python lib/python/ZEO/start.py" I get the following error:

$ python lib/python/ZEO/start.py
Traceback (most recent call last):
  File "lib/python/ZEO/start.py", line 22, in ?
    import ThreadedAsync.LoopCallback
ImportError: No module named ThreadedAsync.LoopCallback

runzeo returns the following

$ python lib/python/ZEO/runzeo.py
Traceback (most recent call last):
  File "lib/python/ZEO/runzeo.py", line 41, in ?
    import ZConfig, ZConfig.datatypes
ImportError: No module named ZConfig


Any help would be greatly appreciated.