Update app.py

app.py

@@ -152,11 +152,15 @@ def bot(history, cross_encoder):
         prompt_html = template_html.render(documents=documents, query=query)
     
         generate_fn = generate_hf
-    
-        history[-1][1] = ""
+        # Create a new history entry instead of modifying the tuple directly
+        new_history = history[:-1] + [ (query, "") ]
         for character in generate_fn(prompt, history[:-1]):
-            history[-1][1] = character
-            yield history, prompt_html
+            new_history[-1] = (query, character)  # Update the last tuple with new text
+            yield new_history, prompt_html
+        # history[-1][1] = ""
+        # for character in generate_fn(prompt, history[:-1]):
+        #     history[-1][1] = character
+        #     yield history, prompt_html
 
 #def translate_text(response_text, selected_language):