From httpd.conf:

Alias /wiki/ "/usr/share/moin/htdocs/"
ScriptAlias /MoinWiki "/var/www/wiki/moin.cgi"


From mywiki.py:

data_dir = '/var/lib/wiki'

From moin.cgi:

sys.path.insert(0, '/usr/share/moin/config/')
sys.path.insert(0, '/etc/moin')

From apache's error.log:

Traceback (most recent call last):
  File "/var/www/wiki/moin.cgi", line 39, in ?
    from MoinMoin.request import RequestCGI
ImportError: No module named MoinMoin.request
[Mon Oct 29 16:02:10 2007] [error] [client 172.28.20.46] Premature end of script headers: /var/www/wiki/moin.cgi