Network: Some minor change.

src/Model/Network/Edge.py

@@ -60,3 +60,9 @@ class Edge(object):
     def disable(self):
         self._enable = False
         self._status.modified()
+
+    def reverse(self):
+        tmp = self.node1
+        self.node1 = self.node2
+        self.node2 = tmp
+        self._status.modified()

src/Model/Network/Graph.py

@@ -56,7 +56,7 @@ class Graph(object):
         )
 
     def node(self, node_name:str):
-        node =  list(
+        node = list(
             filter(
                 lambda n: n.name == node_name,
                 self._nodes
@@ -69,7 +69,7 @@ class Graph(object):
         return node[0]
 
     def edge(self, edge_name:str):
-        edge =  list(
+        edge = list(
             filter(
                 lambda e: e.name == edge_name,
                 self._edges
@@ -154,7 +154,7 @@ class Graph(object):
                 acc or (
                     (e.node1 == node or
                      e.node2 == node)
-                    and e.enable
+                    and e._enable
                 )
             ),
             self._edges,
@@ -162,4 +162,4 @@ class Graph(object):
         )
 
     def is_enable_edge(self, edge):
-        return edge.enable
+        return edge._enable