请问下安装sklearn库时按照步骤安装，import sklearn没有报错，正常，但是引入时出现No module named 'sklearn.sklearn'错误，请问怎么解决谢谢

Python 3.7.0 (default, Jun 28 2018, 08:04:48) [MSC v.1912 64 bit (AMD64)] on win32
Type "copyright", "credits" or "license()" for more information.

from sklearn.sklearn.model_selection import KFold

Traceback (most recent call last):
File "", line 1, in
from sklearn.sklearn.model_selection import KFold
ModuleNotFoundError: No module named 'sklearn.sklearn'

import sklearn