Hello, I got an error message when I'm trying to import twisted in python2.5 on a Debian Lenny machine. The error is: "RunetimeWarning: Python C API version mismacht for module _zoper_interface_coptimizations: This Python has API version 1013, moduel _zope_interface_coptimizations has version 1012." I installed python2.5 from source next to the standard debian python2.4 into /usr/local/lib/python2.5, redirect the link /usr/bin/python to /usr/local/bin/python2.5. Thats working, but when I try to import twisted with "import twisted" I receive the error above. Importing zope works just fine. All I found on the net was that there might be a problem with the two installations of python next to each other. But if so, how can I get rid of python2.4, because I need python2.5. Is there no chance to use both versions parallel? The Version of the zopeinterface is 3.3.1-5, python is 2.4.4-7 and 2.5.1-6, twisted is 2.5.0-2. I am fairly new to Debain and Python and I am really stuck. I hope someone can help me. I would appreciate it big time! Regards, Torsten -- Psst! Geheimtipp: Online Games kostenlos spielen bei den GMX Free Games! http://games.entertainment.web.de/de/entertainment/games/free