Update app.py

app.py

@@ -143,13 +143,15 @@ with gr.Blocks() as demo:
                 )
         txt_btn = gr.Button(value="Submit text", scale=1)
 
-    api_kind = gr.Radio(choices=["HuggingFace"], value="HuggingFace")
+    api_kind = gr.Radio(choices=["HuggingFace","Openai"], value="HuggingFace")
 
     prompt_html = gr.HTML()
-    # Turn off interactivity while generating if you click
-    txt_msg = txt_btn.click(add_text, [chatbot, txt], [chatbot, txt], queue=False).then(
-            bot, [chatbot, api_kind], [chatbot, prompt_html])
-
+    try:
+        # Turn off interactivity while generating if you click
+        txt_msg = txt_btn.click(add_text, [chatbot, txt], [chatbot, txt], queue=False).then(
+                bot, [chatbot, api_kind], [chatbot, prompt_html])
+    except Exception as e:
+        print ('Exception  txt btn click ' ,str(e))
     # Turn it back on
     txt_msg.then(lambda: gr.Textbox(interactive=True), None, [txt], queue=False)
     try: