Update app.py

app.py

@@ -4,6 +4,7 @@ import requests
 import inspect
 import pandas as pd
 from agent import agent_executor
+from langchain_core.messages import HumanMessage
 
 # (Keep Constants as is)
 # --- Constants ---
@@ -17,14 +18,12 @@ class BasicAgent:
 
     def __call__(self, question: str) -> str:
         try:
-            from langchain_core.messages import HumanMessage
             result = agent_executor.invoke({"messages": [HumanMessage(content=question)]})
             answer = result["messages"][-1].content
             return answer.strip()
         except Exception as e:
             print(f"Agent error: {e}")
-            return "I don't know. There is an exception."
-
+            return "I don't know."
             
 def run_and_submit_all( profile: gr.OAuthProfile | None):
     """