sklearn importterror:不能导入名称stable_cumsum

Question

我想从sklearn导入StratifiedKFold来进行交叉验证。我的电脑使用scikit-learn 0.18。在python控制台中，我输入:

 from sklearn.model_selection import StratifiedKFold

弹出以下错误信息:

  File "<ipython-input-307-7880cb661350>", line 1, in <module>
    from sklearn.model_selection import StratifiedKFold
  File "C:UsersuserAnaconda2libsite-packagessklearnmodel_selection__init__.py", line 1, in <module>
    from ._split import BaseCrossValidator
  File "C:UsersuserAnaconda2libsite-packagessklearnmodel_selection_split.py", line 35, in <module>
    from ..gaussian_process.kernels import Kernel as GPKernel
  File "C:UsersuserAnaconda2libsite-packagessklearngaussian_process__init__.py", line 13, in <module>
    from .gpr import GaussianProcessRegressor
  File "C:UsersuserAnaconda2libsite-packagessklearngaussian_processgpr.py", line 15, in <module>
    from sklearn.gaussian_process.kernels import RBF, ConstantKernel as C
  File "C:UsersuserAnaconda2libsite-packagessklearngaussian_processkernels.py", line 30, in <module>
    from ..metrics.pairwise import pairwise_kernels
  File "C:UsersuserAnaconda2libsite-packagessklearnmetrics__init__.py", line 7, in <module>
    from .ranking import auc
  File "C:UsersuserAnaconda2libsite-packagessklearnmetricsranking.py", line 30, in <module>
    from ..utils.extmath import stable_cumsum
ImportError: cannot import name stable_cumsum

Answer 1

问题已解决:

删除scikit-learn:

conda remove scikit-learn

然后重新安装:

pip install -U scikit-learn