error trying to install DCOracle2 in zope

[theo]

Hi,

I've been trying to install DCOracle2 1.2 in zope.
But I get the error:

dco2.so: undefined symbol: PyType_IsSubtype

I've read all I could find on the subject, but can't get it to work.

I'm using:
redhat 8.0
python 2.1.3
zope 2.6.0
DCOracle2 1.1 (and I've tried 1.2)

Any help is very much appreciated.

thanks,

Theo