Update app.py

app.py

@@ -1,3 +1,4 @@
+
 import os
 import re
 import numpy as np
@@ -12,12 +13,7 @@ from typing import List, Dict, Any, Tuple, Optional, Union, Generator
 from dataclasses import dataclass
 import gradio as gr
 
-# Install dependencies in the app.py file for Spaces
-os.system("pip install -q pymupdf langchain langchain_community sentence-transformers faiss-cpu huggingface_hub")
-os.system("pip install -q llama-cpp-python transformers rank_bm25 nltk")
-os.system("pip install -q git+https://github.com/chroma-core/chroma.git")
-
-# Import dependencies after installation
+# Import dependencies (no need for pip install commands)
 import fitz  # PyMuPDF
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain_community.vectorstores import FAISS
@@ -29,6 +25,13 @@ from nltk.tokenize import word_tokenize
 from nltk.corpus import stopwords
 from huggingface_hub import hf_hub_download
 
+# Download nltk resources
+try:
+    nltk.download('punkt', quiet=True)
+    nltk.download('stopwords', quiet=True)
+except:
+    print("Failed to download NLTK resources, continuing without them")
+
 # Setup directories for Spaces
 os.makedirs("pdfs", exist_ok=True)
 os.makedirs("models", exist_ok=True)