Update app.py

app.py

@@ -59,7 +59,7 @@ with gr.Blocks() as demo:
     def _retrieve(message, chat_history):
         idx = int(message)
         for _, m in chat_history[::-1]:
-            if m.startswith("results:\n"):
+            if m.startswith("results"):
                 for n in m.split("\n")[1:]:
                     print(n)
                     if str(idx) == n.split(".")[0]:
@@ -69,7 +69,8 @@ with gr.Blocks() as demo:
                         chat_history.append((message, f"contents of {n}:\n{article}"))
                         return "", chat_history
         print("nothing found")
-        return chat_history.append((message, "article not found"))
+        chat_history.append((message, "🤔 article not found"))
+        return "", chat_history
     
     def respond(message, chat_history):
         print(f"received input '{message}'")