Try to fix install failure for xapian on 3.11-dev and newer. distutils.sysconfig.get_config_vars('SO') is returning None on these platforms. Use: sysconfig.get_config_vars('SO') instead. This works with my 3.6 install, so hopefully will work with all of the 3.x releases we have.

#!/usr/bin/env python
import sys
import roundup

from roundup.demo import main

sys.exit(main())