Update app.py

app.py

@@ -25,7 +25,10 @@ model_name = 'mistralai/Mistral-7B-Instruct-v0.3'
 HF_TOKEN = st.sidebar.text_input("Enter your Hugging Face token:", "YOUR_HF_TOKEN", type="password")
 
 # Hugging Face login
-login(token=HF_TOKEN)
+if HF_TOKEN and HF_TOKEN != "YOUR_HF_TOKEN":
+    login(token=HF_TOKEN)
+else:
+    st.sidebar.warning("Please enter a valid Hugging Face token to proceed.")
 
 # Memory for chat history
 if "history" not in st.session_state: