diff --git a/src/Model/Study.py b/src/Model/Study.py
index 36245160..9816dcd4 100644
--- a/src/Model/Study.py
+++ b/src/Model/Study.py
@@ -546,7 +546,8 @@ class Study(SQLModel):
         self.status.scenario = scenario
 
         if reduce(
-                lambda a, s: a or (s.parent is scenario and not s.is_deleted()),
+                lambda a, s: a or (s.parent is scenario
+                                   and not s.is_deleted()),
                 self.scenarios.lst,
                 False
         ):
diff --git a/src/View/Network/GraphWidget.py b/src/View/Network/GraphWidget.py
index 5c41ee9d..160c1f45 100644
--- a/src/View/Network/GraphWidget.py
+++ b/src/View/Network/GraphWidget.py
@@ -965,7 +965,7 @@ class GraphWidget(QGraphicsView):
                     if self.selected_new_edge_src_node() is None:
                         self.set_selected_new_edge_src_node(nodes[0])
                     else:
-                        self.add_edge(self.selected_new_edge_src_node(), 
+                        self.add_edge(self.selected_new_edge_src_node(),
                                       nodes[0])
 
             # Delete nodes and edges