Update app.py

fixed issue with pickle

app.py

@@ -5,7 +5,7 @@ from sklearn.linear_model import LinearRegression, LogisticRegression
 from sklearn.ensemble import GradientBoostingClassifier
 import xgboost
 from sklearn.compose import ColumnTransformer
-import pickle
+#import pickle
 from sklearn.pipeline import Pipeline
 from sklearn.model_selection import train_test_split
 from sklearn.metrics import classification_report, r2_score