Update app.py

app.py

@@ -89,7 +89,7 @@ def network_visualizer(yaxis, city, fstyear,lastyr, num_nodes):
         else:
             net.add_node(node, font = {'size':30, 'color': 'red'}, color = value_to_hex(student_narrations), label = f'{node_name} \n {student_rank} \n ID: {node} - Gen {student_gen}', size= 50)
     for edge in G.edges:
-        row = edges[(edges['Source'] == edge[0]) & (edges['Destination'] == edge[1])].iloc[0]
+        row = edges[(edges['Teacher_ID'] == edge[0]) & (edges['Student_ID'] == edge[1])].iloc[0]
         source = row['Teacher_ID']
         target = row['Student_ID']
         net.add_edge(source, target, color = value_to_hex(int(row[yaxis])), label = f"{row[yaxis]}")