chatbot and bug fix

chat_with_pps.py

@@ -1,6 +1,6 @@
 import streamlit as st
 from langchain_core.messages import AIMessage, HumanMessage
-from langchain_openai import ChatOpenAI
+from langchain_community.chat_models import ChatOpenAI
 from dotenv import load_dotenv
 from langchain_core.output_parsers import StrOutputParser
 from langchain_core.prompts import ChatPromptTemplate

requirements.txt

@@ -29,5 +29,4 @@ altair[all]
 streamlit-vertical-slider
 streamlit_toggle
 langchain_experimental
-streamlit_draggable_list
-langchain_openai
+streamlit_draggable_list