Update app.py

app.py

@@ -1,7 +1,7 @@
 import streamlit as st
 from langchain.chains import RetrievalQA
 from langchain_community.llms import HuggingFaceHub
-from langchain.vectorstores import Pinecone
+from langchain.vectorstores import LangChainPinecone
 from langchain_community.embeddings import HuggingFaceEmbeddings
 import pinecone
 from pinecone import Pinecone, ServerlessSpec
@@ -12,7 +12,7 @@ host = "https://course-index-po5vpk1.svc.aped-4627-b74a.pinecone.io"
 pc = Pinecone(api_key=os.getenv("PINECONE_API_KEY"))
 # pc = PineconeClient(api_key=os.getenv("PINECONE_API_KEY"))
 index = pc.Index("course-index", host = host)
-vector_store = Pinecone(index=index, embedding = embedding_model, text_key = "desciption")
+vector_store = LangChainPinecone(index=index, embedding = embedding_model, text_key = "desciption")
 
 llm = HuggingFaceHub(repo_id="t5-small", model_kwargs={"temperature": 0.5, "max_length": 64})
 retriever = vector_store.as_retriever()