首页 > 代码库 > 【Python爬虫】安装 pyQuery 遇到的坑 Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed?

【Python爬虫】安装 pyQuery 遇到的坑 Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed?

windows 64位操作系统下,用 Python 抓取网页,并用 pyQuery 解析网页

pyQuery是jQuery在python中的实现,能够以jQuery的语法来操作解析HTML文档,十分方便。使用前需要安装,easy_install pyquery即可,或者Ubuntu下
详情参考:
http://blog.csdn.net/zhaoyl03/article/details/8631645

但是用pip命令安装pyquey的时候,报错了

pip install pyquery

提示需要先安装 lxml ,于是用如下命令安装 lxml

pip install lxml

 报错

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

技术分享

查资料,知乎上找到如下解决方案:https://www.zhihu.com/question/30047496 亲测有效。

1. 安装wheel,命令行运行:
pip install wheel
2.在这里下载对应的.whl文件,注意别改文件名! http://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml
3. 进入.whl所在的文件夹,执行命令即可完成安装
pip install 带后缀的完整文件名

从上面的地址下载到适合我电脑的whl文件:lxml-3.6.4-cp27-cp27m-win_amd64.whl

技术分享

然后在安装 pyquery,成功搞定!

C:\Python27\Scripts>pip install lxml-3.6.4-cp27-cp27m-win_amd64.whl
Processing c:\python27\scripts\lxml-3.6.4-cp27-cp27m-win_amd64.whl
Installing collected packages: lxml
Successfully installed lxml-3.6.4

C:\Python27\Scripts>pip install pyquery
Collecting pyquery
  Using cached pyquery-1.2.17-py2.py3-none-any.whl
Requirement already satisfied: lxml>=2.1 in c:\python27\lib\site-packages (from
pyquery)
Requirement already satisfied: cssselect>0.7.9 in c:\python27\lib\site-packages
(from pyquery)
Installing collected packages: pyquery
Successfully installed pyquery-1.2.17

 

【Python爬虫】安装 pyQuery 遇到的坑 Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed?