If you are root, the installed files may be readable only by root, but they must also be readable by the web server before the wiki will work. This includes both the Python modules and the site itself. For the data directory, the wiki engine also needs write access. To fix this, first find out where the Python module directory is; look in install.log, or run the command:
python -c "import sys; print '%s/lib/python%s/site-packages' % ( sys.prefix, sys.version[:3] )"
For the example below, we'll assume that the Python module directory is /usr/local/lib/python2.4/site-packages. Make the files world-readable using the following commands:
cd /usr/local chmod -R a+rX lib/python2.4/site-packages/MoinMoin