Update app.py

app.py

@@ -5,10 +5,10 @@ import streamlit as st
 import validators
 
 from langchain_community.document_loaders import PyPDFLoader, TextLoader, Docx2txtLoader, WebBaseLoader
-from langchain.vectorstores import FAISS
-from langchain.chat_models import ChatOpenAI
+from langchain_community.vectorstores import FAISS
+from langchain_community.chat_models import ChatOpenAI
 from langchain.chains import QAGenerationChain
-from langchain.embeddings import HuggingFaceEmbeddings, HuggingFaceBgeEmbeddings, HuggingFaceInstructEmbeddings
+from langchain_community.embeddings import HuggingFaceEmbeddings, HuggingFaceBgeEmbeddings, HuggingFaceInstructEmbeddings
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain.chains import QAGenerationChain, LLMChain
 from langchain.chains.conversational_retrieval.prompts import CONDENSE_QUESTION_PROMPT
@@ -20,7 +20,7 @@ from langchain.agents.agent_toolkits import create_retriever_tool
 from langchain.agents.openai_functions_agent.agent_token_buffer_memory import (
     AgentTokenBufferMemory,
 )
-from langchain.chat_models import ChatOpenAI
+from langchain_openai import ChatOpenAI
 from langchain.schema import SystemMessage, AIMessage, HumanMessage
 from langchain.prompts import MessagesPlaceholder
 from langsmith import Client