Python 无法在 Mac os x 10.9 上安装 Lxml
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Cannot install Lxml on Mac os x 10.9
提问by David O'Regan
I want to install Lxml so I can then install Scrapy.
我想安装 Lxml，这样我就可以安装 Scrapy。
When I updated my Mac today it wouldn't let me reinstall lxml, I get the following error:
当我今天更新我的 Mac 时，它不会让我重新安装 lxml，我收到以下错误：
In file included from src/lxml/lxml.etree.c:314:
/private/tmp/pip_build_root/lxml/src/lxml/includes/etree_defs.h:9:10: fatal error: 'libxml/xmlversion.h' file not found
#include "libxml/xmlversion.h"
^
1 error generated.
error: command 'cc' failed with exit status 1
I have tried using brew to install libxml2 and libxslt, both installed fine but I still cannot install lxml.
我曾尝试使用 brew 安装 libxml2 和 libxslt，两者都安装得很好，但我仍然无法安装 lxml。
Last time I was installing I needed to enable the developer tools on Xcode but since its updated to Xcode 5 it doesnt give me that option anymore.
上次安装时，我需要在 Xcode 上启用开发人员工具，但自从它更新到 Xcode 5 后，它不再给我这个选项。
Does anyone know what I need to do?
有谁知道我需要做什么？
采纳答案by tinylee
You should install or upgrade the commandline tool for xcode. Try this in a terminal:
您应该安装或升级 xcode 的命令行工具。在终端中试试这个：
xcode-select --install
回答by jdkoftinoff
This has been bothering me as well for a while. I don't know the internals enough about python distutils etc, but the include path here is wrong. I made the following ugly hack to hold me over until the python lxml people can do the proper fix.
这也困扰了我一段时间。我对 python distutils 等的内部了解不够，但这里的包含路径是错误的。我做了以下丑陋的 hack 来阻止我，直到 python lxml 人们可以做正确的修复。
sudo ln -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/libxml2/libxml/ /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/libxml
回答by André Augusto
回答by Geek4IT
Try:
尝试：
% STATIC_DEPS=true pip install lxml
Or:
或者：
% STATIC_DEPS=true sudo pip install lxml
It works!
有用！
回答by valo
I am using OSX 10.9.2 and I get the same error.
我正在使用 OSX 10.9.2，但出现相同的错误。
Installation of the XCode command line tools does not help for this particular version of OSX.
安装 XCode 命令行工具对这个特定版本的 OSX 没有帮助。
I think a better approach to fix this is to install with the following command:
我认为解决此问题的更好方法是使用以下命令进行安装：
$ CPATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/libxml2 pip install lxml
This is similar to jdkoftinoff' fix, but does not alter your system in a permanent way.
这类似于 jdkoftinoff 的修复，但不会以永久的方式改变您的系统。
回答by panchicore
instalation instructions on http://lxml.de/installation.htmlexplain:
http://lxml.de/installation.html上的安装说明说明：
To speed up the build in test environments, e.g. on a continuous integration server, disable the C compiler optimisations by setting the CFLAGS environment variable:
要加快测试环境中的构建，例如在持续集成服务器上，请通过设置 CFLAGS 环境变量来禁用 C 编译器优化：
CFLAGS="-O0" pip install lxml
回答by okigan
None of the above worked for me on 10.9.2, as compilation bails out with following error:
以上在 10.9.2 上都不适合我，因为编译会出现以下错误：
clang: error: unknown argument: '-mno-fused-madd'
Which actually lead to cleanest solution (see more details in [1]):
这实际上导致了最干净的解决方案（请参阅 [1] 中的更多详细信息）：
export CFLAGS=-Qunused-arguments
export CPPFLAGS=-Qunused-arguments
pip install lxml
or following if installing globally
或者如果全局安装，则遵循
sudo pip install lxml
[1] clang error: unknown argument: '-mno-fused-madd' (python package installation failure)
回答by npiv
OSX 10.9.2
OSX 10.9.2
sudo env ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future STATIC_DEPS=true pip install lxml
回答by Samy Vilar
Installing globally... OS X 10.9.2
全局安装... OS X 10.9.2
xcode-select --install
sudo easy_install pip
sudo CPATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/libxml2 CFLAGS=-Qunused-arguments CPPFLAGS=-Qunused-arguments pip install lxml
回答by Hexatonic
I tried all the answers on this page, none of them worked for me. I'm running OS X Version 10.9.2
我尝试了此页面上的所有答案，但没有一个对我有用。我正在运行 OS X 版本 10.9.2
But this definitely works....like a charm:
但这绝对有效......就像一个魅力：
ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future pip install lxml
ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future pip install lxml
