我安装了python 3.5.3，但是sklearn给了我导入错误

Question

我已经卸载了python 3.7.1并安装了pyton 3.5.3，因为它是x64，但现在从sklearn导入树中出现以下错误

D:\folders\Stuff\Projects>python 10.py
Traceback (most recent call last):
File "10.py", line 7, in <module>
from sklearn import tree
File "C:\Users\Mihai\AppData\Local\Programs\Python\Python35\lib\site-         packages\sklearn\__init__.py", line 63, in <module>
from . import __check_build
ImportError: cannot import name '__check_build'