PEP8 fix

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