sklearn ImportError：没有名为_check_build的模块

Question

我正在尝试导入sklearn，但是当我尝试导入时，会收到以下消息：

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
<ipython-input-2-8fd979e02004> in <module>()
----> 1 import sklearn

C:\Users\Alpine\AppData\Local\Enthought\Canopy\User\sklearn\__init__.py in <module>()
     29     # process, as it may not be compiled yet
     30 else:
---> 31     from . import __check_build
     32     from .base import clone
     33 

C:\Users\Alpine\AppData\Local\Enthought\Canopy\User\sklearn\__check_build\__init__.py in <module>()
     44     from ._check_build import check_build
     45 except ImportError as e:
---> 46     raise_build_error(e)

C:\Users\Alpine\AppData\Local\Enthought\Canopy\User\sklearn\__check_build\__init__.py in raise_build_error(e)
     39 to build the package before using it: run `python setup.py install` or
     40 `make` in the source directory.
---> 41 %s""" % (e, local_dir, ''.join(dir_content).strip(), msg))
     42 
     43 try:

ImportError: No module named _check_build
___________________________________________________________________________
Contents of C:\Users\Alpine\AppData\Local\Enthought\Canopy\User\sklearn\__check_build:
setup.py                  setup.pyc                 _check_build.c
_check_build.pyx          __init__.py               __init__.pyc
___________________________________________________________________________
It seems that scikit-learn has not been built correctly.

If you have installed scikit-learn from source, please do not forget
to build the package before using it: run `python setup.py install` or
`make` in the source directory.

If you have used an installer, please check that it is suited for your
Python version, your operating system and your platform.

ERROR: An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line string', (1, 2))

我相当确定scikit-learn 已正确构建，因为我设法python setup.py install没有任何意外地运行。但是我确实尝试过跑步，python setup.py bdist_wininst -b doc/logos/scikit-learn-logo.bmp尽管在中断了error: cannot copy tree 'build\scripts.win-amd64-2.7': not a directory。

可能有人对如何解决此问题有想法吗？

Answer 1

我在 Windows 10 上遇到了同样的问题。我用 Python 3.7 安装了 Anaconda，并且这个安装不仅带来了这个问题。要解决在 anaconda 提示符下运行：

conda install scikit-learn

至少这对我有用

Answer 2

好的，以下对我来说是工作:)

sudo make
sudo python setup.py install

最后测试一下安装是否ok：

nosetests --exe sklearn