Update app.py

app.py

@@ -4,13 +4,12 @@ import pandas as pd
 import sqlite3
 import logging
 import json
-from langchain.agents import create_sql_agent
 from langchain.agents.agent_toolkits import SQLDatabaseToolkit
-from langchain.llms import OpenAI
 from langchain.sql_database import SQLDatabase
-from langchain.chat_models import ChatOpenAI
 from langchain.prompts import PromptTemplate
 from langchain.chains import LLMChain
+# Import ChatOpenAI from langchain_community
+from langchain_community.chat_models import ChatOpenAI
 
 # Initialize logging
 logging.basicConfig(level=logging.INFO)