错误：无法创建“/usr/local/lib/python2.7/dist-packages/sklearn”：权限被拒绝

Question

我试图安装由 http://scikit-learn.org/stable/install.html 但最后得到这个错误

scikit学习以下

creating /usr/local/lib/python2.7/dist-packages/sklearn 

error: could not create '/usr/local/lib/python2.7/dist-packages/sklearn': Permission denied 

---------------------------------------- 
    Can't roll back scikit-learn; was not uninstalled 
Cleaning up... 
Command /usr/bin/python -c "import setuptools, tokenize;__file__='/tmp/pip_build_tauqeer/scikit-learn/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-i5vTnt-record/install-record.txt --single-version-externally-managed --compile failed with error code 1 in /tmp/pip_build_tauqeer/scikit-learn 
Traceback (most recent call last): 
    File "/usr/bin/pip", line 9, in <module> 
    load_entry_point('pip==1.5.4', 'console_scripts', 'pip')() 
    File "/usr/lib/python2.7/dist-packages/pip/__init__.py", line 235, in main 
    return command.main(cmd_args) 
    File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 161, in main 
    text = '\n'.join(complete_log) 
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 48: ordinal not in range(128) 

我自己也尝试pip install scikit-learn，它显示

Requirement already satisfied (use --upgrade to upgrade): scikit-learn in /usr/lib/python2.7/dist-packages 
Cleaning up... 

我也尝试过使用

sudo apt-get install scikit-learn 

通过尝试

我得到这个

Reading package lists... Done

Building dependency tree

Reading state information... Done

E: Unable to locate package scikit-learn

Answer 1

确保已安装的依赖。从源代码安装要求您已经安装了scikit学习运行时依赖

可以使用

sudo apt-get install build-essential python-dev python-setuptools \ 
        python-numpy python-scipy \ 
        libatlas-dev libatlas3gf-base 

然后使用下面的命令来安装

pip install --user --install-option="--prefix=" -u scikit-learn 

那么你不会得到任何错误安装它们。