未能在MacOS中安装lxml 10.8.4

Question

我在安装lxml到我的Mac OS时遇到问题。 构建它时出现以下错误。

brew install libxml2 
brew link libxml2 --force 

我是新至Mac：使用pip install lxml

/private/var/folders/9s/s5hl5w4x7zjdjkdljw9cnsrm0000gn/T/pip-build-khuevu/lxml/src/lxml/includes/etree_defs.h:9:10: fatal error: 'libxml/xmlversion.h' file not found

我已经安装的libxml2与冲泡时，这是我的错误。在Ubuntu中，这意味着必须安装libxml2-dev软件包。

更新：这里是pip.log：

"~/.pip/pip.log" 124L, 8293C requirement_set.install(install_options, global_options, root=options.root_path) File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-1.3.1-py2.7.egg/pip/req.py", line 1185, in install requirement.install(install_options, global_options, *args, **kwargs) File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-1.3.1-py2.7.egg/pip/req.py", line 592, in install cwd=self.source_dir, filter_stdout=self._filter_install, show_stdout=False) File "/usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pip-1.3.1-py2.7.egg/pip/util.py", line 662, in call_subprocess % (command_desc, proc.returncode, cwd)) InstallationError: Command /usr/local/Cellar/python/2.7.5/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python -c "import setuptools;file='/private/var/folders/9s/s5hl5w4x7zjdjkdljw9cnsrm0000gn/T/pip-build-khuevu/lxml/setup.py';exec(compile(open(file).read().replace('\r\n', '\n'), file, 'exec'))" install --record /var/folders/9s/s5hl5w4x7zjdjkdljw9cnsrm0000gn/T/pip-nsV0iT-record/install-record.txt --single-version-externally-managed failed with error code 1 in /private/var/folders/9s/s5hl5w4x7zjdjkdljw9cnsrm0000gn/T/pip-build-khuevu/lxml

任何想法？ 非常感谢

Answer 1

转出xmlversion.h不包含在编译路径中，即使它在PATH中。修改C_INCLUDE_PATH ENV修复错误对我来说：

C_INCLUDE_PATH=/usr/local/Cellar/libxml2/2.9.1/include/libxml2:$C_INCLUDE_PATH

Answer 2

如果您正在运行安装了Xcode的小牛，你也可以使用：

export C_INCLUDE_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk/usr/include/libxml2:$C_INCLUDE_PATH 

Answer 3

brew install libxml2 
brew link libxml2 --force 
export C_INCLUDE_PATH=/usr/local/Cellar/libxml2/2.9.2/include/libxml2:$C_INCLUDE_PATH 

Answer 4

其他的答案无（出口C_INCLUDE_PATH）为我工作。但是，将CFLAGS环境变量设置为内置OS X 10.10 libxml2 root就像一个魅力一样。

export CFLAGS=-I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/usr/include/libxml2 

Answer 5

我已经Python和libxml的通过酿造安装，这个工作对我来说尝试上述一切后：

sudo mkdir /usr/include # If /usr/include is missing 
sudo ln -s /usr/local/Cellar/libxml2/2.9.2/include/libxml2 /usr/include/libxml2 

注意：您需要检查自己的路径，最新版本。

由于头文件在其他地方可用，并在特定的目录中查找（发现在命令中调用clang进行编译） - 由于某种原因没有选择替代位置，我在右边做了一个软链接地点。

Answer 6

当系统是Mac EI队长时，有mkdir的/usr/权限。也许我们不能修改这个目录？

见What is the “rootless” feature in El Capitan, really?上AskDifferent