Update app.py

app.py

@@ -17,7 +17,8 @@ def chatbot(text):
 def gradio_interface(prompt, history=[]):
     output = chatbot(prompt)
     if history != []:
-        history.append((prompt,output)).reverse()
+        history.append((prompt,output))
+        history.reverse()
     else:
         history.append((prompt, output))
     return history, history