Update app.py

app.py

@@ -12,6 +12,8 @@ def get_python_help(history):
             messages.append({"role": "user", "content": h[0]})
             messages.append({"role": "assistant", "content": h[1]})
         
+        messages.append({"role": "user", "content": history[-1][0]})
+
         # Generate a response using gpt-3.5-turbo
         response = openai.ChatCompletion.create(
             model="gpt-3.5-turbo",
@@ -28,7 +30,7 @@ def get_python_help(history):
         for chunk in response:
             reply += chunk['choices'][0]['delta'].get('content', '')
 
-        history.append((history[-1][0], reply))
+        history[-1] = (history[-1][0], reply)
         return history
     except Exception as e:
         return history + [("Error", str(e))]