Update app.py

app.py

@@ -5,7 +5,10 @@ from transformers import pipeline
 import plotly.graph_objects as go
 import gradio as gr
 from huggingface_hub import login
-login(token="HF_TOKEN")
+
+token = os.getenv("HF_TOKEN")
+login(token=token)
+
 
 HF_DATASET = "SelmaNajih001/FT_MultiCompany"
 HF_PRIVATE_DATASET = "tuo-username/portfolio_strategy_data"