Update app.py

app.py

@@ -3,6 +3,7 @@ import requests
 import torch
 import torch.nn as nn
 import re
+import os
 from transformers import AutoTokenizer
 
 MODEL = "cardiffnlp/xlm-twitter-politics-sentiment"
@@ -50,7 +51,7 @@ def predict_sentiment(text):
     return score
 
 def fetch_articles(ticker):
-    POLYGON_API_KEY = "cMCv7jipVvV4qLBikgzllNmW_isiODRR"
+    POLYGON_API_KEY = os.get_env('poly_api')
     url = f"https://api.polygon.io/v2/reference/news?ticker={ticker}&limit=1&apiKey={POLYGON_API_KEY}"
     try:
         response = requests.get(url)