Update app.py

app.py

@@ -7,6 +7,8 @@ from langchain.vectorstores import Pinecone
 from langchain.embeddings.openai import OpenAIEmbeddings
 from langchain.chains import ConversationalRetrievalChain
 from langchain.chat_models import ChatOpenAI
+import datetime
+import requests
 
 openai.api_key= os.environ.get('API_OPENAI')
 embeddings = OpenAIEmbeddings(openai_api_key=openai.api_key)