Update app.py

app.py

@@ -1,11 +1,12 @@
-%%capture
-
-%pip install langchain langchain-community
-%pip install langchainhub
-%pip install langchain-chroma
-%pip install langchain-groq
-%pip install langchain-huggingface
-%pip install gradio
+import subprocess
+
+# List of packages to install
+packages = ['langchain', 'langchain-community', 'langchainhub','langchain-chroma','langchain-groq','langchain-huggingface','gradio']  
+
+# Install packages
+for package in packages:
+    subprocess.check_call(['pip', 'install', package])
+
 
 from langchain_community.memory import ConversationBufferMemory
 from langchain_community.chat_message_histories import StreamlitChatMessageHistory