Update app.py

app.py

@@ -31,14 +31,14 @@ def network_visualizer(city, year):
     edge_15 = splitIsnad(subsetEdges(city, year)).sample(300)
     nt = Network()
     for _, row in edge_15.iterrows():
-    source = row['Teacher']
-    target = row['Student']
-    attribute_value = row['Hadiths']
-    edge_color = value_to_hex(attribute_value)
-
-    net.add_node(source, color=value_to_hex(attribute_value), font = {'size':30, 'color': 'orange'})
-    net.add_node(target, color=value_to_hex(attribute_value) , font = {'size': 20, 'color': 'red'})
-    net.add_edge(source, target, color=edge_color, value=attribute_value)
+        source = row['Teacher']
+        target = row['Student']
+        attribute_value = row['Hadiths']
+        edge_color = value_to_hex(attribute_value)
+
+        net.add_node(source, color=value_to_hex(attribute_value), font = {'size':30, 'color': 'orange'})
+        net.add_node(target, color=value_to_hex(attribute_value) , font = {'size': 20, 'color': 'red'})
+        net.add_edge(source, target, color=edge_color, value=attribute_value)
 
 
     net.barnes_hut(gravity=-5000, central_gravity=0.3, spring_length=200)