Update app.py

app.py

@@ -12,9 +12,9 @@ from langchain_community.tools import DuckDuckGoSearchRun
 from langchain_experimental.tools.python.tool import PythonREPLTool
 from langchain_community.tools.youtube.search import YouTubeSearchTool
 from langchain_community.tools.wikipedia.tool import WikipediaQueryRun
-from langchain.document_loaders import YoutubeLoader
+from langchain_community.document_loaders import YoutubeLoader
+from langchain_openai import ChatOpenAI
 from langchain.tools import tool
-from langchain.chat_models import ChatOpenAI
 
 from fastapi import FastAPI, UploadFile, File
 from starlette.requests import Request