Update app.py

app.py

@@ -3,7 +3,7 @@ from urllib.parse import urlparse, parse_qs
 import pandas as pd
 import unicodedata as uni
 import emoji
-from langchain_community.chat_models import ChatOpenAI
+from langchain_openai import ChatOpenAI
 from langchain_community.embeddings import HuggingFaceEmbeddings
 from langchain_community.document_loaders import DataFrameLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter