Question

我正在使用Merverick OSX。我已经在我的计算机上安装了Python 3.3.3，我想安装Flask

当我在终端

中输入此内容时

$sudo easy_install virtualenv

终端向我显示此错误

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-    
373.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.

所以我以root用户身份进行访问，然后输入

$sudo easy_install virtualenv

它就像这样说但是有关于* .egg的警告是什么？出了什么问题？以及如何解决它？

Last login: Wed Nov 13 16:10:17 on ttys000
Tammarats-MacBook-Air:~ Team$ su root
Password:
sh-3.2# $sudo easy_install virtualenv
Searching for virtualenv
Reading http://pypi.python.org/simple/virtualenv/
Best match: virtualenv 1.10.1
Downloading https://pypi.python.org/packages/source/v/virtualenv/virtualenv-   
1.10.1.tar.gz#md5=3a04aa2b32c76c83725ed4d9918e362e
Processing virtualenv-1.10.1.tar.gz
Running virtualenv-1.10.1/setup.py -q bdist_egg --dist-dir /tmp/easy_install-  
Nl7IVa/virtualenv-1.10.1/egg-dist-tmp-QGa1nR
warning: no files found matching '*.egg' under directory 'virtualenv_support'
warning: no previously-included files matching '*' found under directory  
'docs/_templates'
warning: no previously-included files matching '*' found under directory 'docs/_build'
Adding virtualenv 1.10.1 to easy-install.pth file
Installing virtualenv script to /usr/local/bin
Installing virtualenv-2.7 script to /usr/local/bin

Installed /Library/Python/2.7/site-packages/virtualenv-1.10.1-py2.7.egg
Processing dependencies for virtualenv
Finished processing dependencies for virtualenv
sh-3.2#

Answer 1

每当我们遇到任何我们无法理解的事情时，我们都应该阅读解释细节。你找到了“警告”，它告诉你这不是错误;和

  Installed /Library/Python/2.7/site-packages/virtualenv-1.10.1-py2.7.egg    
  Processing dependencies for virtualenv
  Finished processing dependencies for virtualenv

说实话，你已经成功安装了virtualenv。现在你可以根据Flask提供的文档，学习Flask;

Answer 2

问题是路径上的easy_install是Apple为python 2.7提供的一个，所以你为python 2.7安装了flask

你需要知道python 3.3版本的显式路径。

另外virtualenv是3.3的一部分，请参阅python docs soyou不需要安装它。

Answer 3

对于安装vertualenv运行此命令：
sudo apt-get install python-virtualenv
和Flask安装遵循以下步骤：http://flask.pocoo.org/docs/installation/或
{ {3}}。

Flask安装无法正常工作

3 个答案: