Update app.py

app.py

@@ -95,7 +95,13 @@ with gr.Blocks(css=css) as demo:
         [submit]
     )
 
+    postresponse_handler = (
+        lambda: (gr.Button(visible=False), gr.Button(visible=True)),
+        None,
+        [submit]
+    )
+
     event2 = submit.click(*response_handler)
-    # event2.then(*postresponse_handler)
+    event2.then(*postresponse_handler)
 
 demo.launch()