Update app.py

app.py

@@ -1,23 +1,53 @@
-import os
+from typing import List
+from langchain_core.documents import Document
+from langchain_community.document_loaders import PyPDFLoader, WebBaseLoader
+from langchain_unstructured import UnstructuredLoader
+from langchain import hub
+from langchain.text_splitter import RecursiveCharacterTextSplitter
+from langchain_community.vectorstores import Chroma
+from langchain.vectorstores import Chroma
+from langchain_core.output_parsers import StrOutputParser
+from langchain_core.runnables import RunnablePassthrough
+import bs4
+from sentence_transformers import SentenceTransformer
+from langchain_openai import OpenAIEmbeddings, ChatOpenAI
+from langchain_huggingface import HuggingFaceEmbeddings
+import ollama
+from langchain.embeddings import OllamaEmbeddings, HuggingFaceEmbeddings
+from langchain_ollama import OllamaEmbeddings
+import numpy as np
+from sklearn.decomposition import PCA
+import matplotlib.pyplot as plt
+import chromadb
 import uuid
-import gradio as gr
+import os
 from dotenv import load_dotenv
+from langchain.chat_models import ChatOllama
+from langchain.chains import RetrievalQA
 from langchain_core.output_parsers import StrOutputParser
-from langchain_core.runnables import RunnableLambda, RunnablePassthrough
+from langchain_core.runnables import RunnablePassthrough
+from langchain_huggingface import HuggingFaceEmbeddings
+from langchain.memory import ConversationBufferMemory
+from langchain.chains import ConversationalRetrievalChain
 from langchain_core.prompts import PromptTemplate
-from langchain_community.vectorstores import Chroma
-from langchain_community.embeddings import HuggingFaceEmbeddings
-from langchain_openai import ChatOpenAI
-from langchain.chains import RetrievalQA
-from langchain_community.document_loaders import UnstructuredURLLoader
-from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain_community.vectorstores.utils import filter_complex_metadata
+from sklearn.metrics.pairwise import cosine_similarity
+from langsmith import traceable
+import seaborn as sns
+from transformers import AutoModelForSequenceClassification, AutoTokenizer
+from transformers import pipeline
+import json
 import smtplib
 from email.mime.text import MIMEText
 from email.mime.multipart import MIMEMultipart
-import logging
-from transformers import AutoModelForSequenceClassification
-
+from email.message import EmailMessage
+import ssl
+import json
+from datetime import datetime
+from langchain.prompts import PromptTemplate
+from langchain.schema.runnable import RunnablePassthrough
+from transformers import pipeline
+from sentence_transformers import CrossEncoder
+from langchain_openai import ChatOpenAI
 
 load_dotenv()