安装scikit-learn

首先到官网下载安装 python ，之后下载setuptools 进行安装。

'python' 不是内部或外部命令 

可运行 set PATH=%PATH%;C:\Python34

安装完成之后，运行easy_install virtualenv

之后根据

Scikit-learn requires:

• Python (>= 2.6 or >= 3.3),
• NumPy (>= 1.6.1),
• SciPy (>= 0.9).

安装 easy_install numpy

安装 easy_install SciPy 

完成之后即可运行 easy_install scikit-learn 

C:\Python34\Scripts>easy_install scikit-learn
Searching for scikit-learn
Reading https://pypi.python.org/simple/scikit-learn/
Reading http://scikit-learn.org
Reading http://scikit-learn.sourceforge.net
Download error on http://scikit-learn.sourceforge.net: timed out -- Some package
s may not be found!
Reading http://sourceforge.net/projects/scikit-learn/files/
Best match: scikit-learn 0.16.
Downloading https://pypi.python.org/packages/3.4/s/scikit-learn/scikit-learn-0.1
6.1.win32-py3..exe#md5=28dc57e538e074748832d18fb8a93e88
Processing scikit-learn-0.16..win32-py3..exe
creating 'C:\Users\ADMINI~1\AppData\Local\Temp\easy_install-qg8zl565\scikit_lear
n-0.16.-py3.-win32.egg' and adding 'C:\Users\ADMINI~\AppData\Local\Temp\easy_
install-qg8zl565\scikit_learn-0.16.-py3.-win32.egg.tmp' to it
creating c:\python34\lib\site-packages\scikit_learn-0.16.-py3.-win32.egg
Extracting scikit_learn-0.16.-py3.-win32.egg to c:\python34\lib\site-packages
Adding scikit-learn 0.16. to easy-install.pth file

Installed c:\python34\lib\site-packages\scikit_learn-0.16.-py3.-win32.egg
Processing dependencies for scikit-learn
Finished processing dependencies for scikit-learn

如按照此方式操作依然不行

>>> import sklearn
Traceback (most recent call last):
  File "<pyshell#15>", line , in <module>
    import sklearn
ImportError: No module named 'sklearn'

可在 https://github.com/scikit-learn/scikit-learn 下载

解压到 C盘目录下 运行 python setup.py install 即可。