1.Data normalization

from sklearn.datasets import load_iris
from sklearn import preprocessing

X, y = load_iris(return_X_y=True)
normalized_X = preprocessing.normalize(X)

print(normalized_X)


2.Data standardization

from sklearn.datasets import load_iris
from sklearn import preprocessing

X, y = load_iris(return_X_y=True)
standardized_X = preprocessing.scale(X)

print(standardized_X)