diff --git a/src/graph_ZCA/base.py b/src/graph_ZCA/base.py
--- a/src/graph_ZCA/base.py
+++ b/src/graph_ZCA/base.py
@@ -35,6 +35,7 @@ class BaseComponent(object):
     def setup(self, *args, **kwargs):
         pass
 
+
 class BaseFactory(object):
     def __init__(self, obj, *args, **kwargs):
         """