usr bin env python from mercurial hgweb hgwebdir_mod import hgwebdir f

#!/usr/bin/env python
from mercurial.hgweb.hgwebdir_mod import hgwebdir
from mercurial.hgweb.request import wsgiapplication

def make_web_app():
  return hgwebdir("/path/to/hgwebdir.config")
application = wsgiapplication(make_web_app)