Move python install location from sitelib to sitearch

[Douglas E. Warner]

I have a package that installs some python modules into the normal sitelib 
directory, but since the package is mostly contained of arch-specific 
binaries I can't package these into noarch files [1].  I need to move these 
python modules into the sitearch dir; how can I modify the setup.py call to 
install to /usr/lib or /usr/lib64 instead of just /usr/lib?

-Doug

[1] https://bugzilla.redhat.com/show_bug.cgi?id=341361