Update app.py

app.py

@@ -1,10 +1,10 @@
 import os
 import streamlit as st
-from langchain.llms import OpenAI
-from langchain.prompts import PromptTemplate
+from langchain import OpenAI
+from langchain import PromptTemplate
 from langchain.chains import LLMChain, SequentialChain
-from langchain.memory import ConversationBufferMemory
-from langchain.utilities import WikipediaAPIWrapper
+from langchain import ConversationBufferMemory
+from langchain import WikipediaAPIWrapper
 
 
 OPENAI_KEY = os.getenv("OPENAI_API_KEY")