Update app.py

app.py

@@ -1,7 +1,7 @@
 import subprocess
 
 # Instalar un paquete utilizando pip desde Python
-subprocess.check_call(["pip", "install", "langchain_community"])
+subprocess.check_call(["pip", "install", "langchain_community","langchain"])
 
 import streamlit as st 
 from langchain.chains import LLMChain
@@ -15,7 +15,7 @@ from langchain.prompts import PromptTemplate
 
 from langchain.chains.conversation.memory import ConversationEntityMemory
 from langchain.chains.conversation.prompt import ENTITY_MEMORY_CONVERSATION_TEMPLATE
-from langchain.llms import HuggingFaceEndpoint
+from langchain_community.llms import HuggingFaceEndpoint
 import os