从 BeautifulSoup4 (python) 的 main soup 中删除特定标签

Question

这是我试过的-看看soup.div.decompose()，我也试过soup.elements.div.decompose()。这也是使用 DataTables 中的内容，这是我第一次使用它，所以如果有更好的方法来实现我正在做的事情，请告诉我！提前致谢！

import bs4

with open('MapPage.html', 'r', encoding="utf8") as f:
    txt = f.read()
    soup = bs4.BeautifulSoup(txt,"html5lib")

elements = soup.find_all('tr')
elements.pop(0)

def DeleteData(msgID):
    for div in elements:
        ID = div.find('a').contents[0]
        if int(msgID)==int(ID):
            soup.div.decompose()
            return
    print('Failed to delete data from', msgID)

我希望我能够再次将汤写到 'MapPage.html'。产生错误 AttributeError: 'NoneType' object has no attribute 'decompose'。这是打印 div 时的输出： (Link to html file)

Answer 1

如果我没理解错的话，你喜欢decompose()在其<a>中包含特定值的<tr>。

主要问题是您尝试执行 soup.div.decompose() 什么意思，您喜欢 decompose() 首先 <div> 汤对象。

只需使用：

div.decompose()

或者更好地将您的变量名称更改为 none 标签名称：

e.decompose()

例子

from bs4 import BeautifulSoup

html = '''
<html><body>
    <h2>Welcome to our collection of community made maps!</h2>
    <table id="example" class="cell-border" style="width:100%">
        <thead>
            <tr><th>ID</th><th>Author</th><th>Content</th><th>Thumbnail</th><th>Download</th><th>Rating</th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td><a href="https://discord.com/channels/932741876174454914/932881912714895390/939257309387980851">939257309387980851</a></td>
                <td>Matter</td><td>Cervinia Source</td><td><img src="https://media.discordapp.net/attachments/932881912714895390/939257307290796062/unknown.png" alt="Cervina Thumb" width="300" height="auto"></td><td><a href="https://discord.com/channels/932741876174454914/932881912714895390/939257309387980851">Download</a></td><td>5</td>
            </tr>
            <tr><td><a href="https://discord.com/channels/932741876174454914/932881912714895390/939257309387980851">939257309387980852</a></td><td>Tea</td><td>Chamonix</td><td><img src="https://media.discordapp.net/attachments/932881912714895390/939257307290796062/unknown.png" alt="Cervina Thumb" width="300" height="auto"></td><td><a href="https://discord.com/channels/932741876174454914/932881912714895390/939257309387980851">Download</a></td><td>5</td></tr>
        </tbody>
    </table>
</body></html>
'''
soup = BeautifulSoup(html,)
elements = soup.select('tr:has(td)')

def DeleteData(msgID):
    for e in elements:
        ID = e.find('a').contents[0]
        if int(msgID)==int(ID):
            e.decompose()
            return
        print('Failed to delete data from', msgID)

DeleteData(939257309387980851)

从 BeautifulSoup4 (python) 的 main soup 中删除特定标签

Delete a specific tag from main soup in BeautifulSoup4 (python)

html

python

tags

beautifulsoup

python-3.x

例子