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HomeBackend DevelopmentPython Tutorial在windows系统中实现python3安装lxml

lxml是Python中与XML及HTML相关功能中最丰富和最容易使用的库。lxml并不是Python自带的包,而是为libxml2和libxslt库的一个Python化的绑定。它与众不同的地方是它兼顾了这些库的速度和功能完整性,以及纯Python API的简洁性,与大家熟知的ElementTree API兼容但比之更优越!但安装lxml却又有点麻烦,因为存在依赖,直接安装的话用easy_install, pip都不能成功,会报gcc错误。

爬虫时通常要安装LXML,对于通过一下命令行

 pip install lxml

出现如下错误的解决方法

 lxml Unable to find vcvarsall.bat

1. 安装wheel,命令行运行:

 pip install wheel

2.在这里下载对应的.whl文件(打开网址后ctrl+F,搜索LXML,选择对应版本,一般是win32,而不选win_arm64,即使电脑是win64)

http://www.lfd.uci.edu/~gohlke/pythonlibs/#lxml

3. 进入.whl所在的文件夹->shift+鼠标右键->在此处打开命令窗口

4.执行命令即可完成安装:

 pip install lxml-3.6.0-cp35-cp35m-win32.whl

另外附上Linux系统中安装LXML的教程

因为lxml依赖的包如下:

libxml2, libxml2-devel, libxlst, libxlst-devel, python-libxml2, python-libxslt

所以安装步骤如下:

第一步: 安装 libxml2

$ sudo apt-get install libxml2 libxml2-dev 

第二步: 安装 libxslt

$ sudo apt-get install libxlst libxslt-dev 

第三步: 安装 python-libxml2 和 python-libxslt

$ sudo apt-get install python-libxml2 python-libxslt

第四步: 安装 lxml

$ sudo easy_install lxml 

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