Update app.py

app.py

@@ -6,7 +6,8 @@ import pandas as pd
 from langchain.embeddings.openai import OpenAIEmbeddings
 from langchain.text_splitter import CharacterTextSplitter
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain.vectorstores import Chroma
+from langchain_community.vectorstores import Chroma
+#from langchain.vectorstores import Chroma
 from langchain_community.document_loaders import TextLoader
 from langchain_community.chat_models import ChatOpenAI
 from langchain import PromptTemplate