Hi all, gave up trying to get any help on the p2pool thread - like getting blood out of a stone, so thought I'd try here instead

I noticed this has started appearing when I start p2pool after doing some compiling on my node:
"/usr/lib/python2.7/dist-packages/zope/__init__.py:3: UserWarning: Module twisted was already imported from /usr/lib/python2.7/dist-packages/twisted/__init__.pyc, but /usr/local/lib/python2.7/dist-packages/autobahn-0.7.4-py2.7.egg is being added to sys.path"
It appears right at the start before p2pool does it's thing - but everything seems to be working OK with no errors. Have I accidentally added something I don't need - and should I get rid of it?
Thanks.