diff --git a/setup.cfg b/setup.cfg
index 0f06e9c98b..6c8be3f399 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -15,3 +15,5 @@ blank_line_before_nested_class_or_def = True
 combine_as_imports = True
 line_length = 85
 multi_line_output = 5
+known_future_library = __python__
+known_standard_library = aes,elementmaker,encodings