Update app.py

app.py

@@ -1,6 +1,6 @@
 import streamlit as st
 from streamlit_chat import message
-from langchain import OpenAI
+from langchain_openai import ChatOpenAI
 from langchain.chains import ConversationChain
 from langchain.chains.conversation.memory import (ConversationBufferMemory, 
                                                   ConversationSummaryMemory, 
@@ -24,7 +24,7 @@ st.sidebar.title("😎")
 st.session_state['API_Key']= st.sidebar.text_input("What's your API key?",type="password")
 summarise_button = st.sidebar.button("Summarise the conversation", key="summarise")
 if summarise_button:
-    summarise_placeholder = st.sidebar.write("Nice chatting with you my friend ❤️:\n\n"+st.session_state['conversation'].memory.buffer)
+    summarise_placeholder = st.sidebar.write("Nice chatting with you my friend ❤️:\n\n")
     #summarise_placeholder.write("Nice chatting with you my friend ❤️:\n\n"+st.session_state['conversation'].memory.buffer)
 
 #import os
@@ -34,10 +34,10 @@ def getresponse(userInput, api_key):
 
     if st.session_state['conversation'] is None:
 
-        llm = OpenAI(
+        llm = ChatOpenAI(
             temperature=0,
             openai_api_key=api_key,
-            model_name='text-davinci-003'  #we can also use 'gpt-3.5-turbo'
+            model_name='gpt-3.5-turbo'
         )
 
         st.session_state['conversation'] = ConversationChain(