def index(self, req, path):
        index_path = os.path.join(path, self.index_page)
        if not os.path.isfile(index_path):
            return exc.HTTPNotFound(comment=index_path)
        if not req.path_info.endswith('/'):
            url = req.path_url + '/'
            if req.query_string:
                url += '?' + req.query_string
            return Response(
                status=301,
                location=url)
        return self.make_fileapp(index_path)
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/webob-1.2.3/webob/static.py/DirectoryApp.index/original