fix python2.7 compatibility

Nicolas Maurice · Nicolas Maurice · commit 9206ec6b893a · 2017-11-24T19:35:24.000+01:00
diff --git a/graphene_sqlalchemy/tests/test_types.py b/graphene_sqlalchemy/tests/test_types.py
@@ -131,7 +131,7 @@ class Meta:
     def __init_subclass_with_meta__(cls, custom_option=None, **options):
         _meta = CustomOptions(cls)
         _meta.custom_option = custom_option
-        super().__init_subclass_with_meta__(_meta=_meta, **options)
+        super(SQLAlchemyObjectTypeWithCustomOptions, cls).__init_subclass_with_meta__(_meta=_meta, **options)
 
 
 class ReporterWithCustomOptions(SQLAlchemyObjectTypeWithCustomOptions):
