标签：报错信息 you tree bs4 pre code 切换 install library
环境bs4.FeatureNotFound: Couldn‘t find a tree builder with the features you requested: lxml. Do you need to install a parser library?标签：报错信息 you tree bs4 pre code 切换 install library
原文地址：http://blog.51cto.com/13934611/2165831
