[Buildbot-devel] Problem using WithProperties. "twisted.spread.jelly.InsecureJelly: Class not allowed for instance"

[Niklaus Giger]

Hi

I just updated to latest version using baz.
 PYTHONPATH=. trial  buildbot.test.test_properties 
works fine for me.

After having installed I get however the following error
when trying to run the step outlined in the example.

remoteFailed: [Failure instance: Traceback: 
twisted.spread.jelly.InsecureJelly: Class not allowed for instance: 
buildbot.process.step.WithProperties <buildbot.process.step.WithProperties 
instance at 0x3069f5f8>
/usr/lib/python2.3/site-packages/buildbot/process/step.py:367:start
/usr/lib/python2.3/site-packages/buildbot/process/step.py:258:start
/usr/lib/python2.3/site-packages/buildbot/process/step.py:113:start
/usr/lib/python2.3/site-packages/twisted/spread/pb.py:382:callRemote
--- <exception caught here> ---
/usr/lib/python2.3/site-packages/twisted/spread/pb.py:857:_sendMessage
/usr/lib/python2.3/site-packages/twisted/spread/pb.py:811:serialize
/usr/lib/python2.3/site-packages/twisted/spread/jelly.py:883:jelly
/usr/lib/python2.3/site-packages/twisted/spread/jelly.py:468:jelly
/usr/lib/python2.3/site-packages/twisted/spread/jelly.py:472:jelly
/usr/lib/python2.3/site-packages/twisted/spread/jelly.py:464:jelly
/usr/lib/python2.3/site-packages/twisted/spread/jelly.py:497:jelly
]

Googleing around I didn't find an easy answer. Has anybody noticed this 
problem before?

Thanks in advance for any hint.
-- 
Niklaus Giger