如何在Amazon EC2 linux上安装lxml依赖项？

Question

我试过了：

sudo yum install libxml2-dev libxslt-dev python-dev

我得到了：

Loaded plugins: priorities, update-motd, upgrade-helper
amzn-main/latest                                         | 2.1 kB     00:00     
amzn-updates/latest                                      | 2.3 kB     00:00     
No package libxml2-dev available.
No package libxslt-dev available.
No package python-dev available.

pip也没用。

我得到了这样的包：

git clone --branch lxml-3.2.4 https://github.com/lxml/lxml

然后我尝试没有cython，因为sudo python setup.py install给了我RuntimeError: ERROR: Trying to build without Cython, but pre-generated 'src/lxml/lxml.etree.c' is not available

sudo python setup.py install --without-cython

然后我得到了：

sudo python setup.py install --without-cython
Building lxml version 3.2.4.
WARNING: Trying to build without Cython, but pre-generated 'src/lxml/lxml.etree.c' is not available.
WARNING: Trying to build without Cython, but pre-generated 'src/lxml/lxml.objectify.c' is not available.
Building without Cython.
ERROR: /bin/sh: xslt-config: command not found

** make sure the development packages of libxml2 and libxslt are installed **

Using build configuration of libxslt 
/usr/lib64/python2.6/distutils/dist.py:266: UserWarning: Unknown distribution option: 'bugtrack_url'
  warnings.warn(msg)
running install
running bdist_egg
running egg_info
writing src/lxml.egg-info/PKG-INFO
writing top-level names to src/lxml.egg-info/top_level.txt
writing dependency_links to src/lxml.egg-info/dependency_links.txt
reading manifest file 'src/lxml.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
warning: no files found matching 'lxml.etree.c' under directory 'src/lxml'
warning: no files found matching 'lxml.objectify.c' under directory 'src/lxml'
warning: no files found matching 'lxml.etree.h' under directory 'src/lxml'
warning: no files found matching 'lxml.etree_api.h' under directory 'src/lxml'
warning: no files found matching '*.txt' under directory 'src/lxml/tests'
warning: no files found matching '*.html' under directory 'doc'
writing manifest file 'src/lxml.egg-info/SOURCES.txt'
installing library code to build/bdist.linux-x86_64/egg
running install_lib
running build_py
copying src/lxml/includes/lxml-version.h -> build/lib.linux-x86_64-2.6/lxml/includes
running build_ext
building 'lxml.etree' extension
gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -I/home/ec2-user/lxml/src/lxml/includes -I/usr/include/python2.6 -c src/lxml/lxml.etree.c -o build/temp.linux-x86_64-2.6/src/lxml/lxml.etree.o
gcc: error: src/lxml/lxml.etree.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
error: command 'gcc' failed with exit status 4
[ec2-user@ip-172-31-14-83 lxml]$ 

它真的希望我确保安装了libxml2和libxslt的开发包 。

如果我能做到这一点，我希望它能奏效。 有任何想法吗？ 谢谢！ 似乎人们对此有相关问题，但大多数都在其他系统上。

---

更新：基于Vor的建议，我使用了-devel扩展，并且用于安装依赖项。

sudo yum install libxml2-devel libxslt-devel python-devel

不幸的是我明白了：

$sudo python setup.py install --without-cython


Building lxml version 3.4.0.
WARNING: Trying to build without Cython, but pre-generated 'src/lxml/lxml.etree.c' is not available.
WARNING: Trying to build without Cython, but pre-generated 'src/lxml/lxml.objectify.c' is not available.
Building without Cython.
Using build configuration of libxslt 1.1.28
Building against libxml2/libxslt in the following directory: /usr/lib64
/usr/lib64/python2.6/distutils/dist.py:266: UserWarning: Unknown distribution option: 'bugtrack_url'
  warnings.warn(msg)
running install
running bdist_egg
running egg_info
writing requirements to src/lxml.egg-info/requires.txt
writing src/lxml.egg-info/PKG-INFO
writing top-level names to src/lxml.egg-info/top_level.txt
writing dependency_links to src/lxml.egg-info/dependency_links.txt
reading manifest file 'src/lxml.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
warning: no files found matching 'lxml.etree.c' under directory 'src/lxml'
warning: no files found matching 'lxml.objectify.c' under directory 'src/lxml'
warning: no files found matching 'lxml.etree.h' under directory 'src/lxml'
warning: no files found matching 'lxml.etree_api.h' under directory 'src/lxml'
warning: no files found matching '*.html' under directory 'doc'
writing manifest file 'src/lxml.egg-info/SOURCES.txt'
installing library code to build/bdist.linux-x86_64/egg
running install_lib
running build_py
copying src/lxml/includes/lxml-version.h -> build/lib.linux-x86_64-2.6/lxml/includes
running build_ext
building 'lxml.etree' extension
gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -I/usr/include/libxml2 -I/home/ec2-user/lxml/src/lxml/includes -I/usr/include/python2.6 -c src/lxml/lxml.etree.c -o build/temp.linux-x86_64-2.6/src/lxml/lxml.etree.o -w
gcc: error: src/lxml/lxml.etree.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
error: command 'gcc' failed with exit status 4

Answer 1

我有同样的问题。 在此之后：

sudo yum install libxml2-devel libxslt-devel python-devel

我又试过了

sudo yum install lxml

它工作:)

Answer 2

EC2 t.micro上的问题是你的内存不足以编译lxml包。

当你运行：dmesg | 尾巴，你会看到问题

[167588.470868]内存不足：杀死进程9804（cc1）得分499或牺牲孩子[167588.475046]被杀死进程9804（cc1）total-vm：693864kB，anon-rss：521696kB，file-rss：0kB

唯一的方法是通过yum或其他包管理器安装python-lxml包。

Answer 3

sudo yum install libxml2-devel libxslt-devel python-devel

加

sudo yum install gcc

这对我有用。

Answer 4

加上huapito的回答。 以下代码为我工作。 sudo yum install gcc libxml2-devel libxslt-devel python-devel sudo pip install lxml

Answer 5

在CentOS上它是python-devel ，而不是python-dev 。 与他人一样。

Answer 6

以下对我有用：

sudo yum install libxml2-devel libxslt-devel python-devel

在AWS EC2实例上：

Amazon Linux AMI release 2015.09

Answer 7

破碎的构建在该过程中留下中间文件。 尝试rm -rf / tmp / pip-build-root

Answer 8

在我的AWS机器上，我有python2.7和python3.4，我想为python3.4安装lxml - 我发现我必须使用

sudo yum install python34-devel