导入 sklearn.utils._logistic_sigmoid 个模块时出错

Question

我已经从 Christoph Gohlke Unofficial Windows installers 安装了 scipy 和 scikit-learn，并且以下命令运行成功无误：

>>> import sklearn
>>> import scipy

然后我打算尝试 sklearn.datasets.load_digits() 链接文档中演示的功能：

from sklearn.datasets import load_digits

但该行触发了一个错误，据我所知，_log_logistic_sigmoid 未找到：

Traceback (most recent call last):
  File "<pyshell#0>", line 1, in <module>
    from sklearn.datasets import load_digits
  File "C:\Python27\lib\site-packages\sklearn\datasets\__init__.py", line 23, in <module>
    from .twenty_newsgroups import fetch_20newsgroups
  File "C:\Python27\lib\site-packages\sklearn\datasets\twenty_newsgroups.py", line 53, in <module>
    from ..feature_extraction.text import CountVectorizer
  File "C:\Python27\lib\site-packages\sklearn\feature_extraction\__init__.py", line 10, in <module>
    from . import text
  File "C:\Python27\lib\site-packages\sklearn\feature_extraction\text.py", line 29, in <module>
    from ..preprocessing import normalize
  File "C:\Python27\lib\site-packages\sklearn\preprocessing\__init__.py", line 6, in <module>
    from .data import Binarizer
  File "C:\Python27\lib\site-packages\sklearn\preprocessing\data.py", line 19, in <module>
    from ..utils.extmath import row_norms
  File "C:\Python27\lib\site-packages\sklearn\utils\extmath.py", line 23, in <module>
    from ._logistic_sigmoid import _log_logistic_sigmoid
ImportError: DLL load failed: The specified module could not be found.

有人遇到过这个错误吗？如何解决？

如果有帮助，我正在 windows 8 机器上使用 python 2.7。

Answer 1

通过卸载非官方包解决，然后使用以下命令从官方包重新安装：

pip install -U numpy scipy scikit-learn

导入 sklearn.utils._logistic_sigmoid 个模块时出错

Error importing sklearn.utils._logistic_sigmoid modules

python

scikit-learn