Update app.py

app.py

@@ -1,8 +1,16 @@
+import subprocess
+import sys
+
+def install(package):
+    subprocess.check_call([sys.executable, "-m", "pip", "install", package])
+
+# Install required packages
+install("streamlit")
+
 import streamlit as st
 import asyncio
 import os
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain.document_loaders import PyPDFLoader
 from langchain.prompts import SystemMessagePromptTemplate, HumanMessagePromptTemplate
 from langchain.vectorstores import Chroma
 from langchain.embeddings import OpenAIEmbeddings
@@ -101,3 +109,6 @@ if user_query:
     st.write("Context used:")
     for i, context in enumerate(result["context"], 1):
         st.write(f"{i}. {context[:100]}...")
+
+if __name__ == "__main__":
+    st.run()