Update app.py

app.py

@@ -11,6 +11,8 @@ from langchain.chains import ConversationalRetrievalChain
 from langchain.llms import HuggingFaceHub
 from htmlTemplates import css, bot_template, user_template
 
+
+os.environ["HUGGINGFACEHUB_API_TOKEN"] = st.secrets['huggingface_token']
 def get_pdf_text(pdf_docs : list) -> str:
     text = ""
     for pdf in pdf_docs: