osx python setup.py 不会安装 xattr-0.6.1 应用程序

Question

我是 svn 和 python 的新手，但我真的想使用更新版本的 xattr，它包含比操作系统附带的原始版本更多有用的功能。

在 OSX 10.5.6 上，我无法安装 xattr-0.6.1。

从终端的本地机器：

$ svn co http://svn.red-bean.com/bob/xattr/releases/xattr-0.6.1/

文件被下载并放置在~/xattr-0.6.1/

$ cd xattr-0.6.1/
$ sudo python setup.py install

---------------------------------------------------------------------------
This script requires setuptools version 0.6c11 to run (even to display
help).  I will attempt to download it for you (from
http://pypi.python.org/packages/2.5/s/setuptools/), but
you may need to enable firewall access for this script first.
I will start the download in 15 seconds.

(Note: if this machine does not have network access, please obtain the file

   http://pypi.python.org/packages/2.5/s/setuptools/setuptools-0.6c11-py2.5.egg

and place it in this directory before rerunning this script.)
---------------------------------------------------------------------------
Downloading http://pypi.python.org/packages/2.5/s/setuptools/setuptools-0.6c11-py2.5.egg
running install
running bdist_egg
running egg_info
creating xattr.egg-info
writing xattr.egg-info/PKG-INFO
writing top-level names to xattr.egg-info/top_level.txt
writing dependency_links to xattr.egg-info/dependency_links.txt
writing entry points to xattr.egg-info/entry_points.txt
writing manifest file 'xattr.egg-info/SOURCES.txt'
writing manifest file 'xattr.egg-info/SOURCES.txt'
installing library code to build/bdist.macosx-10.5-i386/egg
running install_lib
running build_py
creating build
creating build/lib.macosx-10.5-i386-2.5
creating build/lib.macosx-10.5-i386-2.5/xattr
copying xattr/__init__.py -> build/lib.macosx-10.5-i386-2.5/xattr
copying xattr/constants.py -> build/lib.macosx-10.5-i386-2.5/xattr
copying xattr/tool.py -> build/lib.macosx-10.5-i386-2.5/xattr
running build_ext
building 'xattr._xattr' extension
creating build/temp.macosx-10.5-i386-2.5
creating build/temp.macosx-10.5-i386-2.5/xattr
gcc -fno-strict-aliasing -Wno-long-double -no-cpp-precomp -mno-fused-madd -fno-common -dynamic -DNDEBUG -g -Os -Wall -Wstrict-prototypes -DMACOSX -I/usr/include/ffi -DENABLE_DTRACE -arch i386 -arch ppc -pipe -I/System/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5 -c xattr/_xattr.c -o build/temp.macosx-10.5-i386-2.5/xattr/_xattr.o
unable to execute gcc: No such file or directory
error: command 'gcc' failed with exit status 1

查看python版本：

$ python -V
Python 2.5.1

它似乎已经安装了 python 更新。

我尝试再次运行 xattr 安装：

$ sudo python setup.py install
running install
running bdist_egg
running egg_info
writing xattr.egg-info/PKG-INFO
writing top-level names to xattr.egg-info/top_level.txt
writing dependency_links to xattr.egg-info/dependency_links.txt
writing entry points to xattr.egg-info/entry_points.txt
writing manifest file 'xattr.egg-info/SOURCES.txt'
installing library code to build/bdist.macosx-10.5-i386/egg
running install_lib
running build_py
running build_ext
building 'xattr._xattr' extension
gcc -fno-strict-aliasing -Wno-long-double -no-cpp-precomp -mno-fused-madd -fno-common -dynamic -DNDEBUG -g -Os -Wall -Wstrict-prototypes -DMACOSX -I/usr/include/ffi -DENABLE_DTRACE -arch i386 -arch ppc -pipe -I/System/Library/Frameworks/Python.framework/Versions/2.5/include/python2.5 -c xattr/_xattr.c -o build/temp.macosx-10.5-i386-2.5/xattr/_xattr.o
unable to execute gcc: No such file or directory
error: command 'gcc' failed with exit status 1

我是否遗漏了一个重要的基本元素，或者 setup.py 配置有什么问题，或者我可能忽略了其他什么？

Answer 1

需要编译一个C文件，所以需要gcc。 Mac 用户需要安装XCode。 更新正如@jathanism 所提到的，您应该有一张随 Mac 一起提供的 XCode 安装 DVD（很可能是 3.2 版）。

例如：

atlas% which gcc
/usr/bin/gcc
atlas% gcc -v
Target: i686-apple-darwin10
..
Thread model: posix
gcc version 4.2.1 (Apple Inc. build 5666) (dot 3)