Update app.py

app.py

@@ -12,17 +12,14 @@ from PyPDF2 import PdfReader, PdfWriter
 
 
 from langchain.chains import LLMChain, RetrievalQA
-from langchain.document_loaders import PyPDFLoader, WebBaseLoader, UnstructuredWordDocumentLoader, DirectoryLoader
+from langchain.document_loaders import PyPDFLoader,  UnstructuredWordDocumentLoader, DirectoryLoader
 from langchain.document_loaders.blob_loaders.youtube_audio import YoutubeAudioLoader
-from langchain.document_loaders.generic import GenericLoader
-from langchain.document_loaders.parsers import OpenAIWhisperParser
+from langchain.document_loaders import GenericLoader
 from langchain.schema import AIMessage, HumanMessage
 from langchain.llms import HuggingFaceHub
 from langchain.llms import HuggingFaceTextGenInference
 from langchain_community.embeddings import HuggingFaceInstructEmbeddings, HuggingFaceEmbeddings, HuggingFaceBgeEmbeddings, HuggingFaceInferenceAPIEmbeddings
-from langchain.retrievers.tavily_search_api import TavilySearchAPIRetriever
 
-from langchain.embeddings.openai import OpenAIEmbeddings
 from langchain.prompts import PromptTemplate
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain_community.vectorstores import Chroma