Update app.py

app.py

@@ -85,6 +85,8 @@ def KNN_predict(train_features, train_labels, test_feature, K):
     ### (1) calculate distance between test feature and each of training data points
 
     # get distance for data point i 
+    print("train_point_feature: ",train_point_feature.shape)
+    print("test_point_feature: ",test_point_feature.shape)
     dis = scipy.spatial.distance.euclidean(train_point_feature, test_point_feature)
     
     # collect lable for datapoint i