Update app.py

app.py

@@ -12,8 +12,9 @@ import seaborn as sns
 
 
 
-key_alphacast = Alphacast("ak_rjVLScLXFCHwimxt5Qew")
-dataset = key_alphacast.datasets.dataset(5664)
+key_alphacast = "ak_rjVLScLXFCHwimxt5Qew"
+alphacast = Alphacast(key_alphacast)
+dataset = alphacast.datasets.dataset(5664)
 df = dataset.download_data(format = "pandas", startDate=None, endDate=None, filterVariables = [], filterEntities = {})
 data = df[["country","Date","Real Consumption at constant 2017 national prices (In mil. 2017US$)",
            "Average annual hours worked by persons engaged",