Update app.py

app.py

@@ -300,6 +300,9 @@ qa = ConversationalRetrievalChain.from_llm(
      )
 
 
+import gradio as gr
+import time
+
 with gr.Blocks() as demo:
     chatbot = gr.Chatbot()
     msg = gr.Textbox()
@@ -307,7 +310,17 @@ with gr.Blocks() as demo:
 
     def user(user_message, history):
         return gr.update(value="", interactive=False), history + [[user_message, None]]
-…
+
+    def bot(history):
+        response = qa(history[-1][0])
+        response = response['answer']
+
+        history[-1][1] = ""
+        for character in response:
+            history[-1][1] += character
+            time.sleep(0.05)
+            yield history
+
     response = msg.submit(user, [msg, chatbot], [msg, chatbot], queue=False).then(
         bot, chatbot, chatbot
     )