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-rw-r--r--framework/grouptools.py1
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diff --git a/framework/grouptools.py b/framework/grouptools.py
index ce2e97c79..11b0af95a 100644
--- a/framework/grouptools.py
+++ b/framework/grouptools.py
@@ -1,3 +1,4 @@
+# coding=utf-8
# Copyright (c) 2014-2016 Intel Corporation
# Permission is hereby granted, free of charge, to any person obtaining a copy