Update app.py

app.py

@@ -26,10 +26,10 @@ from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain_core.messages import HumanMessage, SystemMessage
 from langchain_core.output_parsers import StrOutputParser
 from langchain_core.runnables import RunnablePassthrough
-from langchain_openai import ChatOpenAI
 # langchain_community imports
 from langchain_community.embeddings import HuggingFaceEmbeddings
 from langchain_community.llms import HuggingFacePipeline
+from langchain_community.chat_models import ChatOpenAI
 
 
 # Retrieve environment variables.