在Mac OS X上运行Virtualenv问题

Question

我在Mac OS X 10.6.2（安装了Xcode）和Python 2.6上使用virtualenv-1.4.5。这是当我尝试运行virtualenv时得到的...

Mac-Pro:pylonsdev paul$ virtualenv --no-site-packages -v trythis 
Creating trythis/lib/python2.6 
Symlinking Python bootstrap modules 
    Symlinking trythis/lib/python2.6/_abcoll.pyc 
    Symlinking trythis/lib/python2.6/_abcoll.pyo 
    Symlinking trythis/lib/python2.6/abc.pyc 
    Symlinking trythis/lib/python2.6/abc.pyo 
    Symlinking trythis/lib/python2.6/codecs.pyc 
    Symlinking trythis/lib/python2.6/codecs.pyo 
    Symlinking trythis/lib/python2.6/config 
    Symlinking trythis/lib/python2.6/copy_reg.pyc 
    Symlinking trythis/lib/python2.6/copy_reg.pyo 
    Symlinking trythis/lib/python2.6/encodings 
    Symlinking trythis/lib/python2.6/fnmatch.pyc 
    Symlinking trythis/lib/python2.6/fnmatch.pyo 
    Symlinking trythis/lib/python2.6/genericpath.pyc 
    Symlinking trythis/lib/python2.6/genericpath.pyo 
    Symlinking trythis/lib/python2.6/lib-dynload 
    Symlinking trythis/lib/python2.6/linecache.pyc 
    Symlinking trythis/lib/python2.6/linecache.pyo 
    Symlinking trythis/lib/python2.6/locale.pyc 
    Symlinking trythis/lib/python2.6/locale.pyo 
    Symlinking trythis/lib/python2.6/ntpath.pyc 
    Symlinking trythis/lib/python2.6/ntpath.pyo 
    Symlinking trythis/lib/python2.6/os.pyc 
    Symlinking trythis/lib/python2.6/os.pyo 
    Symlinking trythis/lib/python2.6/posixpath.pyc 
    Symlinking trythis/lib/python2.6/posixpath.pyo 
    Symlinking trythis/lib/python2.6/re.pyc 
    Symlinking trythis/lib/python2.6/re.pyo 
    Symlinking trythis/lib/python2.6/sre.pyc 
    Symlinking trythis/lib/python2.6/sre.pyo 
    Symlinking trythis/lib/python2.6/sre_compile.pyc 
    Symlinking trythis/lib/python2.6/sre_compile.pyo 
    Symlinking trythis/lib/python2.6/sre_constants.pyc 
    Symlinking trythis/lib/python2.6/sre_constants.pyo 
    Symlinking trythis/lib/python2.6/sre_parse.pyc 
    Symlinking trythis/lib/python2.6/sre_parse.pyo 
    Symlinking trythis/lib/python2.6/stat.pyc 
    Symlinking trythis/lib/python2.6/stat.pyo 
    Symlinking trythis/lib/python2.6/types.pyc 
    Symlinking trythis/lib/python2.6/types.pyo 
    Symlinking trythis/lib/python2.6/UserDict.pyc 
    Symlinking trythis/lib/python2.6/UserDict.pyo 
    Symlinking trythis/lib/python2.6/warnings.pyc 
    Symlinking trythis/lib/python2.6/warnings.pyo 
Creating trythis/lib/python2.6/site-packages 
Writing trythis/lib/python2.6/site.py 
Writing trythis/lib/python2.6/orig-prefix.txt 
Writing trythis/lib/python2.6/no-global-site-packages.txt 
Creating parent directories for trythis/include 
Symlinking trythis/include/python2.6 
Creating trythis/bin 
New python executable in trythis/bin/python 
Changed mode of trythis/bin/python to 0755 
Symlinking trythis/.Python 
Error [Errno 2] No such file or directory while executing command install_name_tool -change /System/Library/Frameworks/Pyt...ython @executable_path/../.Python trythis/bin/python 
Could not call install_name_tool -- you must have Apple's development tools installed 
Traceback (most recent call last): 
    File "/usr/local/bin/virtualenv", line 8, in <module> 
    load_entry_point('virtualenv==1.4.5', 'console_scripts', 'virtualenv')() 
    File "/Library/Python/2.6/site-packages/virtualenv-1.4.5-py2.6.egg/virtualenv.py", line 529, in main 
    use_distribute=options.use_distribute) 
    File "/Library/Python/2.6/site-packages/virtualenv-1.4.5-py2.6.egg/virtualenv.py", line 612, in create_environment 
    site_packages=site_packages, clear=clear)) 
    File "/Library/Python/2.6/site-packages/virtualenv-1.4.5-py2.6.egg/virtualenv.py", line 806, in install_python 
    py_executable]) 
    File "/Library/Python/2.6/site-packages/virtualenv-1.4.5-py2.6.egg/virtualenv.py", line 557, in call_subprocess 
    cwd=cwd, env=env) 
    File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/subprocess.py", line 595, in __init__ 
    File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/subprocess.py", line 1106, in _execute_child 
OSError: [Errno 2] No such file or directory 

任何建议为什么会引发此错误？

Answer 1

还有一个10.6的virtualenv错误请参阅the ticket on virtualenv's bitbucket。即使你解决了问题，你仍然会遇到另一个问题（我认为Python.framework找不到图像，但我不记得 - 当我碰到这个时，我没有记下任何注释）

我做了一些调查，我希望问题的根源可以用Python 2.7来解决 - 当然人们知道它，并且向CPython提交了一个修补程序来修复它。

但是，它看起来好像有人用10.6.2和virtualenv 1.4.5获得了很好的结果......或者不再使用系统Python（macports，手工构建）。

Answer 2

那么，错误消息包括如下：

你必须有苹果的开发工具安装

你？它们位于OSX附带的单独XCode磁盘上。

Answer 3

从App Store安装XCode来解决问题。我有同样的错误，安装XCode，安装后运行它，现在virtualenv工作。

Answer 4

有一个使用@ gregglind的virtualenv分支的解决方案。我回答同样的问题在这里：mac osx: unable to use virtualenv

git clone https://github.com/gregglind/virtualenv.git 
cd virtualenv 
git checkout feature/install_name_tool 
sudo python setup.py install 

Answer 5

我有同样的错误消息，试图在上最新最大OSX狮子安装安装的XCode运行的virtualenv。

但是：马克提示on Mar 1 2010：

好代码说你没有安装Xcode的，但你说你有。什么install_name_tool在命令行说？它应该是install_name_tool - > install_name_tool ==/usr/bin/install_name_tool

我有同样的问题。我在Lion中安装了最新的Xcode（10.7.2）。

$ locate install_name_tool 
/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/install_name_tool 
/Developer/usr/bin/install_name_tool 
/Developer/usr/share/man/man1/install_name_tool.1 

我由simlink从/开发人员的/ usr/bin中到/ usr/bin中与

$ sudo ln -s /Developer/usr/bin/install_name_tool /usr/bin/install_name_tool 

进入 '其' 命令产生：

$ which install_name_tool 
/usr/bin/install_name_tool 

之后我做了virtualenv魔术

$ virtualenv -p python2.6 myvirtenv 
Running virtualenv with interpreter /opt/local/bin/python2.6 
New python executable in myvirtenv/bin/python 
Installing setuptools............................done. 
Installing pip...............done. 

Answer 6

install_name_tool到您的路径

出口PATH = $ PATH：/开发人员在/ usr/bin中

Answer 7

你真正需要做的是安装Xcode的“命令行工具”，有两种方法可以做到这一点：

1.-如果您已安装Xcode，请转至首选项 - >下载并选择“命令行工具”。

2.-从“https://developer.apple.com/downloads”下载“用于Xcode的命令行工具”.dmg。

您可以使用App Store安装Xcode，但默认情况下不包含“命令行工具”。