[Zope] Zope Debugger -> ImportError

[Jens Wolk]

Hi everybody, 

I try to set up a Zope debugger as described in
http://www.zope.org/Members/michel/HowTos/TheDebuggerIsYourFriend

I tried it with installations of Zope 2.4.0, 2.5.0 and 2.5.1 (followed the 
instructions in INSTALL.txt) but I end up always with the same error:

cd $ZOPE_HOME/lib/python
python

Python 1.5.2 (#1, Mar  3 2001, 01:35:43)  [GCC 2.96 20000731 (Red Hat Linux 
7.1 2 on linux-i386
Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam
>>> import Zope
Traceback (innermost last):
  File "<stdin>", line 1, in ?
  File "Zope/__init__.py", line 21, in ?
    import ZODB, ZODB.ZApplication, imp
  File "ZODB/__init__.py", line 14, in ?
    import sys, ExtensionClass, TimeStamp, cPersistence, Persistence
ImportError: ./ExtensionClass.so: undefined symbol: PyObject_Init

Can anybody help?