为什么我在尝试安装pyquery python模块时收到此错误？

Question

我使用以下命令

!pip install pyquery

我可以安装其他模块。有谁知道为什么会这样？谢谢！

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＆＃34; / usr / bin / python -c＆＃34;导入setuptools，tokenize; 文件 =＆＃39; / private / var / folders / p1 / xg17tts541n1__p_srg1n2j80000gn / T /pip-build-nn9QXj/lxml/setup.py';exec(compile(getattr(tokenize,' open＆＃39;，open）（ file ）。read（）。替换（＆＃39; \ r \ n＆＃39;，＆＃39; \ n＆＃39;），文件，＆＃39; exec＆＃39;））＆＃34; install --record /var/folders/p1/xg17tts541n1__p_srg1n2j80000gn/T/pip-X97yGE-record/install-record.txt --single-version-external-managed --compile＆＃34;在/ private / var / folders / p1 / xg17tts541n1__p_srg1n2j80000gn / T / pip-build-nn9QXj / lxml中错误代码1失败

Answer 1

基于此参考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。我正在使用CentOS 7。

Answer 2

  

src / lxml / includes / etree_defs.h:14:10：致命错误：'libxml / xmlversion.h'   找不到文件

     

包括“libxml / xmlversion.h”

我已经把这种错误包围了。在大多数情况下，安装共享库的开发包，模块需要修复它。

在Debian中libxml2-dev拥有libxml2 pacakge的所有头文件。 libxml2：amd64 / jessie 2.9.1 + dfsg1-5 uptodate libxml2-dev：amd64 / jessie 2.9.1 + dfsg1-5 uptodate

lxml模块需要libxml2-dev和libxslt1-dev。