def _get_server(self, context, req, instance_uuid, is_detail=False):
        expected_attrs = ['flavor']
        if is_detail:
            expected_attrs = self._view_builder.get_show_expected_attrs(
                                                            expected_attrs)
        instance = common.get_instance(self.compute_api, context,
                                       instance_uuid,
                                       expected_attrs=expected_attrs)
        req.cache_db_instance(instance)
        return instance
Reading a string format is just an application of reading
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/api/openstack/compute/legacy_v2/servers.py/Controller._get_server--crossover with--dataset/ETHPy150Open CountZer0/PipelineConstructionSet/python/maya/site-packages/pymel-1.0.3/pymel/util/scanf.py/handleString