测试2

我们在导入sklearn时往往会报错。

import sklearn  
Traceback (most recent call last):  
 File "<stdin>", line 1, in <module>  
  File "sklearn/__init__.py", line 37, in <module>  
    from . import __check_build  
  File "sklearn/__check_build/__init__.py", line 46, in <module>  
    raise_build_error(e)  
  File "sklearn/__check_build/__init__.py", line 41, in raise_build_error  
    %s""" % (e, local_dir, ''.join(dir_content).strip(), msg))  
ImportError: No module named _check_build  
___________________________________________________________________________  
Contents of sklearn/__check_build:  
__init__.py               __init__.pyc              _check_build.c  
_check_build.pyx          setup.py                  setup.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.

折腾了一下午之后的解决方案：
1.shadowsocksFQ，解决pip官网下载速度问题。
2.用pip在anaconda Scripts目录中卸载numpy,scipy,matplotlib,skicit-learn相关。
命令：pip uninstall numpy
3.在anaconda Scripts目录中重装numpy,scipy,matplotlib，最后安装skicit-learn。
命令：pip install numpy

成功解决问题，开心到飞起。

 

 https://blog.csdn.net/wyc12306/article/details/54564136

https://www.cnblogs.com/eastmount/p/5052871.html

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