（转载）bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: html_par

bs4解析网页时报错：bs4.FeatureNotFound: Couldn't find a tree builder with the features you requested: html_parser. Do you need to install a parser library?

原因：不可以使用 BeautifulSoup(html,'html_parser')

解决办法：

1.安装 pip install lxml

2.将BeautifulSoup(html,'html_parser') 改为BeautifulSoup(html,'lxml')

另：好像有人遇到的情况和我的正好相反，由于刚开始接触python，还不是很了解具体原因，希望后期能够了解具体的原因。
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原文链接：https://blog.csdn.net/matlab001/article/details/83856642

标签：FeatureNotFound,requested,Couldn,bs4,parser,BeautifulSoup,html,find,features
来源： https://www.cnblogs.com/liuxiaoming123/p/15306186.html