在元素中查找元素的漂亮汤简单python错误? [英] Beautiful soup simple python error with finding elements within elements?

问题描述

我遇到了一个BS4错误，该错误没有给出任何解释，至少不是我所理解的，有人可以帮助我知道它的含义吗? 这是代码:

I've come across a BS4 error that gives no explanation, at least not one I understand, could someone help me know what it means? here is the code:

    soup = BeautifulSoup(browser.page_source, "html.parser")
    soup.prettify()
    container = soup.find('table', {'id': 'RmvMainTable'})
    containerlv2 = container.find('tr')
    # related_files = containerlv2[6].find('div')
    # print(related_files)
    for re_file in containerlv2[6].find('div'):
        print("lol")

这是错误:

Traceback (most recent call last):
 File "/home/user/Python projects/test/test3.py", line 162, in <module>
  for re_file in containerlv2[6].find('div'):
 File "/usr/lib/python3/dist-packages/bs4/element.py", line 958, in __getitem__
  return self.attrs[key]
 KeyError: 6

如果您注意到#out代码会给出完全相同的错误

if you notice the # out code it gives the exact same error

推荐答案

containerlv2是标签对象，它没有6作为键，因此得到KeyError: 6

containerlv2 is a tag object, and it does not have 6 as key, therefore you got KeyError: 6

如果您要在第7个tr标签中搜索div标签，则正确的方法应该是:

If you are trying to search for div tag in the 7th tr tag, the correct way should be:

containerlv2 = container.find_all('tr')
related_files = containerlv2[6].find('div')

首先，您使用find_all在container中获取所有tr标记并将它们放入列表containerlv2中，然后在containerlv2的第7个标记中搜索div

First you use find_all to get all tr tags in container and put them into a list containerlv2, and then you search for div in the 7th tag of containerlv2

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