如何按类查找元素 [英] How to find elements by class

问题描述

我在使用 Beautifulsoup 解析具有class"属性的 HTML 元素时遇到问题.代码看起来像这样

I'm having trouble parsing HTML elements with "class" attribute using Beautifulsoup. The code looks like this

soup = BeautifulSoup(sdata)
mydivs = soup.findAll('div')
for div in mydivs: 
    if (div["class"] == "stylelistrow"):
        print div

我在脚本完成之后"的同一行收到错误消息.

I get an error on the same line "after" the script finishes.

File "./beautifulcoding.py", line 130, in getlanguage
  if (div["class"] == "stylelistrow"):
File "/usr/local/lib/python2.6/dist-packages/BeautifulSoup.py", line 599, in __getitem__
   return self._getAttrMap()[key]
KeyError: 'class'

我如何摆脱这个错误?

推荐答案

您可以使用 BS3 优化搜索以仅查找具有给定类的那些 div:

You can refine your search to only find those divs with a given class using BS3:

mydivs = soup.find_all("div", {"class": "stylelistrow"})

这篇关于如何按类查找元素的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！