Python lxml安装报错， 提示 Could not find function xmlCheckVersion in library libxml2

1、安装lxml时报错
$sudo pip install lxml

错误信息如下:

Compile failed: command ‘gcc’ failed with exit status 1
/tmp/easy_install-lk8jAw/lxml-3.6.1/temp/xmlXPathInit2tf2ts.c:1:26: 错误：libxml/xpath.h：没有那个文件或目录

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Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed?

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error: Setup script exited with error: command ‘gcc’ failed with exit status 1

2、安装libxml2
$sudo yum install libxml2

3、重新安装lxml
$sudo pip install lxml
还是提示相同的错误信息。

4、检查是否安装 libxml2-dev、 libxslt-devel
$sudo yum install libxslt-devel

会同时安装依赖 libxml2-devel

5、再次安装lxml
$sudo pip install lxml
安装成功。

$ sudo pip install lxml
Collecting lxml
Using cached lxml-3.6.1.tar.gz
Installing collected packages: lxml
Running setup.py install for lxml … done
Successfully installed lxml-3.6.1

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