python server is in debug mode

src/App.tsx

@@ -27,7 +27,7 @@ export class Main extends React.Component<any, any> {
             </Header.Content>
           </Header>
         </Segment>
-        <LexSetup {...this.props} fileName="/new_es_orig.xml"/>
+        <LexSetup {...this.props} fileName="/new_es.xml"/>
       </div>
     );
   }

walle-server.py

@@ -9,3 +9,6 @@ def walle_index():
 @app.route('/test')
 def walle_test():
     return "test"
+
+if __name__ == '__main__':
+    app.run(debug=True)