Update app.py

app.py

@@ -150,7 +150,7 @@ def plot_tree_using_igraph():
 
     node_trace = go.Scatter(
         x=node_x, y=node_y,
-        text=[id_to_node.name for i in range(len(layout.coords))],
+        text=[id_to_node[i].name for i in range(len(layout.coords))],
         # text=["Node {}".format(i) for i in range(len(layout.coords))],
         mode='markers+text',
         hoverinfo='text',