OS X Lion easy_install 需要 sudo ...?

OS X Lion easy_install 需要 sudo ...?

我在 OS X Lion 上,想要设置 python 虚拟环境。我想使用 virtualenvwrapper。

有人可以确认正确的方法是通过 easy_install (然后是 pip)安装软件包须藤

语境: 我想使用 pip 来安装 virtaulenv,所以我这样做了

$ easy_install pip
error: can't create or remove files in install directory

The following error occurred while trying to add or remove files in the
installation directory:

    [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/test-easy-install-876.write-test'

The installation directory you specified (via --install-dir, --prefix, or
the distutils default setting) was:

    /Library/Python/2.7/site-packages/

Perhaps your account does not have write access to this directory?  If the
installation directory is a system-owned directory, you may need to sign in
as the administrator or "root" account.  If you do not have administrative
access to this machine, you may wish to choose a different installation
directory, preferably one that is listed in your PYTHONPATH environment
variable.

For information on other options, you may wish to consult the
documentation at:

  http://peak.telecommunity.com/EasyInstall.html

Please make the appropriate changes for your system and try again.

似乎我让 easy_install 工作的唯一方法是使用 sudo。我在其他地方读到过这是一个坏主意(尽管我并不完全确定为什么)。

澄清,

$ which python
/usr/bin/python

版本号是 2.7.1。

答案1

使用以下命令使 /Library/Python/2.7/site-packages/ 可在全球范围内执行:

sudo chmod -R 755 /Library/Python/2.7/site-packages

对我有用。

答案2

在 Lion 之前,/Library/Python默认情况下是用户可写的(除非您开始使用sudo easy_install一次,之后新创建的文件不再是用户可写的)。 Lion 改变了这一点,尽管原因尚不清楚。因此,您可以更改所有权/Library/Python或添加sudo到所有easy_install操作。

自制软件 维基更多细节。

答案3

下载安装工具再次使用此命令进行安装将解决您的问题。

sudo sh setuptools-0.6c11-py2.7.egg --prefix=~ --install-dir=/Library/Python/2.7/site-packages/

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