vscode之 Couldn‘t find a tree builder with the features you requested: lxml. Do you need to install a

在vscode中运行python项目代码，代码里进行了bs4解析网页时报错，代码里其中有一句是这么写的：

soup = BeautifulSoup(self.html, 'lxml')

然后在终端报了一个错误：找不到具有您请求的功能的树生成器：lxml。您需要安装解析器库吗？

报错：Couldn't find a tree builder with the features you requested: lxml. Do you need to install a parser library?
找不到具有您请求的功能的树生成器：lxml。您需要安装解析器库吗？

解决方法：

1、看到网上有人说将BeautifulSoup(html,'lxml')改为BeautifulSoup(html,'html_parser')

好吧，看起来不太可靠.....

2、找了找，看到有人说需要进行下载安装 lxml这个第三方库，命令为： pip install lxml

pip install lxml

下面这样的显示结果说明lxml已经下载安装好了：

3、接下来重新运行python代码，确实没有出现那个问题了。

OK，问题成功解决了。

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vscode之 Couldn‘t find a tree builder with the features you requested: lxml. Do you need to install a

解决方法：

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