Update app.py

app.py

@@ -4,6 +4,7 @@ import joblib
 import pandas as pd
 from datetime import datetime
 from datetime import datetime, timedelta
+import os
 
 #Airport Names to ICAO codes
 airport_icao_map = {
@@ -18,7 +19,7 @@ airport_icao_map = {
 
 # Get Live Flight Status
 def get_flight_status(flight_iata):
-    API_KEY = "cae13ef0f58b1f460f534db49ec9ae25" 
+    API_KEY = os.getenv("AVIATIONSTACK_API_KEY")
     url = f"http://api.aviationstack.com/v1/flights?access_key={API_KEY}&flight_iata={flight_iata}"
 
     try: