Update app.py

app.py

@@ -1,18 +1,22 @@
 import os
 import nltk
-import requests
-import chainlit as cl
-from llama_index import VectorStoreIndex, Document, ServiceContext
-from llama_index.embeddings.huggingface import HuggingFaceEmbedding
-from llama_index.llms.groq import Groq
-from llama_index.node_parser import SentenceSplitter
-from dotenv import load_dotenv
 
-# Set up NLTK data directory
+# Use a directory within the user's home directory
 nltk_data_dir = os.path.expanduser("~/.nltk_data")
 os.makedirs(nltk_data_dir, exist_ok=True)
 nltk.data.path.append(nltk_data_dir)
+
+# Download NLTK data
 nltk.download('punkt', download_dir=nltk_data_dir, quiet=True)
+import chainlit as cl
+from llama_index.core import VectorStoreIndex, Document
+from llama_index.embeddings.huggingface import HuggingFaceEmbedding
+from llama_index.llms.groq import Groq
+from llama_index.core import ServiceContext
+from llama_index.core.node_parser import SentenceSplitter
+from dotenv import load_dotenv
+import yfinance as yf
+import pandas as pd
 
 load_dotenv()