<Location /trac>
    #
    # Make sure users are authenticated
    #
    #Require valid-user

    SetHandler mod_python
    PythonPath "sys.path+['/usr/lib/svn-python']"
    PythonHandler trac.web.modpython_frontend
    PythonOption TracUriRoot /trac
    PythonOption TracEnvParentDir /var/trac
</Location>