routes.py

app = WSGIApplication([
    DomainRoute('<subdomain>.' + config.APP_HOST, [
        # request for sub.foo.com passes subdomain=sub to IndexHandler
        Route('/', blog.IndexHandler, name='blog'),
        # request for sub.foo.com/path passes path=foo to PostHandler
        # but NOT the subdomain
        # I expected this route to get subdomain=sub, path=path
        Route('/<path:.+>', blog.PostHandler, name='post'),
    ]),
], config=config.webapp_cfg, debug=True)