为什么我在尝试安装pyquerypython模块时收到这个错误？

Question

我使用以下命令

!pip install pyquery

我可以安装其他模块。有人知道为什么会这样吗？谢谢！在

---

src/lxml/includes/etree_defs.h:14:10: fatal error: 'libxml/xmlversion.h' file not found
#include "libxml/xmlversion.h"
         ^
1 error generated.
Compile failed: command 'cc' failed with exit status 1
creating var
creating var/folders
creating var/folders/p1
creating var/folders/p1/xg17tts541n1__p_srg1n2j80000gn
creating var/folders/p1/xg17tts541n1__p_srg1n2j80000gn/T
cc -I/usr/include/libxml2 -I/usr/include/libxml2 -c /var/folders/p1/xg17tts541n1__p_srg1n2j80000gn/T/xmlXPathInit9XZ4sL.c -o var/folders/p1/xg17tts541n1__p_srg1n2j80000gn/T/xmlXPathInit9XZ4sL.o
/var/folders/p1/xg17tts541n1__p_srg1n2j80000gn/T/xmlXPathInit9XZ4sL.c:1:10: fatal error: 'libxml/xpath.h' file not found
#include "libxml/xpath.h"
         ^
1 error generated.
*********************************************************************************
Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed?
Perhaps try: xcode-select --install
*********************************************************************************
error: command 'cc' failed with exit status 1

----------------------------------------

命令“/usr/bin/python-c”导入setuptools，tokenize；file='/private/var/folders/p1/xg17tts541n1_up_srg1n2j80000gn/T/pip-build-nn9QXj/lxml/设置.py'；exec（compile（getattr（tokenize，'open'，open）（文件）.read（）.replace（'\r\n'，'\n'），文件，'exec'））“安装--record/var/folders/p1/xg17tts541n1_up_srg1n2j80000gn/T/pip-X97yGE-record/install-记录.txt--单版本外部管理--compile“失败，错误代码1位于/private/var/folders/p1/xg17tts541n1_up_srg1n2j80000gn/T/pip-build-nn9QXj/lxml中

Answer 1

基于这个引用http://forums.fedoraforum.org/showthread.php?t=297730

我尝试安装libffi-devel、libxml2-devel、libxslt-devel，它解决了这个问题。我用的是CentOS 7。在

Answer 2

src/lxml/includes/etree_defs.h:14:10: fatal error: 'libxml/xmlversion.h' file not found

include "libxml/xmlversion.h"

我曾遇到过这种错误。在大多数情况下，安装共享库的开发包时，模块需要修复它。在

在Debian中libxml2 dev拥有libxml2包的所有头文件。 libxml2:amd64/jessie 2.9.1+dfsg1-5最新 libxml2-开发人员：amd64/杰西2.9.1+dfsg1-5最新

lxml模块需要libxml2 dev和libxslt1-dev