Update app.py

app.py

@@ -10,15 +10,15 @@ from typing import Dict, Any, List
 import openai
 import transformers
 from transformers import pipeline
-from langchain.llms import OpenAI
-from langchain.chains import  LLMChain
+from langchain_community.llms import OpenAI
+from langchain.chains import LLMChain
 from langchain.prompts import PromptTemplate
 from langchain.chains.question_answering import load_qa_chain
-from langchain.document_loaders import TextLoader
+from langchain_community.document_loaders import TextLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain.embeddings import OpenAIEmbeddings
-from langchain.vectorstores import FAISS
-from langchain.chains.summarization import load_summarization_chain
+from langchain_community.embeddings import OpenAIEmbeddings
+from langchain_community.vectorstores import FAISS
+from langchain_community.chains.summarization import load_summarization_chain
 from langchain.chains.conversational_retrieval_qa import ConversationalRetrievalQAChain
 from langchain.memory import ConversationBufferMemory