sklearn ImportError：無法導入名稱stable_cumsum

Question

我想從sklearn導入StratifiedKFold以進行交叉驗證。我的電腦使用scikit-learn 0.18。 在Python控制檯，I型：

from sklearn.model_selection import StratifiedKFold 

以下錯誤消息彈出：

File "<ipython-input-307-7880cb661350>", line 1, in <module> 
    from sklearn.model_selection import StratifiedKFold 

    File "C:\Users\user\Anaconda2\lib\site-packages\sklearn\model_selection\__init__.py", line 1, in <module> 
    from ._split import BaseCrossValidator 

    File "C:\Users\user\Anaconda2\lib\site-packages\sklearn\model_selection\_split.py", line 35, in <module> 
    from ..gaussian_process.kernels import Kernel as GPKernel 

    File "C:\Users\user\Anaconda2\lib\site-packages\sklearn\gaussian_process\__init__.py", line 13, in <module> 
    from .gpr import GaussianProcessRegressor 

    File "C:\Users\user\Anaconda2\lib\site-packages\sklearn\gaussian_process\gpr.py", line 15, in <module> 
    from sklearn.gaussian_process.kernels import RBF, ConstantKernel as C 

    File "C:\Users\user\Anaconda2\lib\site-packages\sklearn\gaussian_process\kernels.py", line 30, in <module> 
    from ..metrics.pairwise import pairwise_kernels 

    File "C:\Users\user\Anaconda2\lib\site-packages\sklearn\metrics\__init__.py", line 7, in <module> 
    from .ranking import auc 

    File "C:\Users\user\Anaconda2\lib\site-packages\sklearn\metrics\ranking.py", line 30, in <module> 
    from ..utils.extmath import stable_cumsum 

ImportError: cannot import name stable_cumsum 

Answer 1

的問題已經得到解決：

刪除scikit學習：

conda remove scikit-learn 

然後重新安裝它：

pip install -U scikit-learn