Update app.py

app.py

@@ -5,6 +5,7 @@ import xgboost as xgb
 from sklearn.metrics import mean_squared_error
 from sklearn.model_selection import train_test_split
 import optuna
+import shap
 path = "train.csv"
 data = pd.read_csv(path)
 y = data['SalePrice']