弄乱 matplotlib/EPD 后 virtualenv 损坏

Question

我一直在用头撞墙，试图让 virtualenv 在 Mac OS X (Snow Leopard) 上与 matplotlib 和/或 Enthought Python Distribution 很好地配合，在遵循了一堆不同的有用建议之后，我想我已经打破了我的安装超出了我恢复它们的能力。我现在正处于 virtualenv 根本不再工作的地步；如果有人可以帮助我处理以下堆栈跟踪，我将不胜感激：

~ $ virtualenv foo
The --no-site-packages flag is deprecated; it is now the default behavior.
Traceback (most recent call last):
File "/Library/Frameworks/EPD64.framework/Versions/Current/bin/virtualenv", line 9, in <module>
    load_entry_point('virtualenv==1.7', 'console_scripts', 'virtualenv')()
File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/virtualenv.py", line 928, in main
    never_download=options.never_download)
File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/virtualenv.py", line 1029, in create_environment
    site_packages=site_packages, clear=clear))
File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/virtualenv.py", line 1143, in install_python
    mkdir(lib_dir)
File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/site-packages/virtualenv.py", line 399, in mkdir
    os.makedirs(path)
File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/os.py", line 150, in makedirs
    makedirs(head, mode)
File "/Library/Frameworks/EPD64.framework/Versions/7.1/lib/python2.7/os.py", line 157, in makedirs
    mkdir(name, mode)
OSError: [Errno 20] Not a directory: 'foo/lib'

Answer 1

看起来您之前的一些行为（或一般的“foo”黑客攻击）在 ~ 目录中留下了 foo 文件......例如，我可以通过以下方式重现错误：

(phil@ute::~) touch foo
(phil@ute::~) virtualenv foo
" .... same output you saw ending with:"
OSError: [Errno 20] Not a directory: 'foo/lib'

删除该文件（或尝试 virtualenv not_so_foo），你应该没问题。