diff --git a/kallithea/lib/vcs/utils/lazy.py b/kallithea/lib/vcs/utils/lazy.py
--- a/kallithea/lib/vcs/utils/lazy.py
+++ b/kallithea/lib/vcs/utils/lazy.py
@@ -9,6 +9,7 @@ class _Missing(object):
     def __reduce__(self):
         return '_missing'
 
+
 _missing = _Missing()