如何仅提取包含粗体元素的 html 段落元素

Question

我正在尝试从维基百科页面中提取 ID = 'See' 下的段落元素，全部放入列表中。

使用：

import bs4
import requests


response = requests.get("https://wikitravel.org/en/Bhopal")

if response is not None:
    html = bs4.BeautifulSoup(response.text, 'html.parser')

plot = []

# find the node with id of "Plot"
mark = html.find(id="See")

# walk through the siblings of the parent (H2) node 
# until we reach the next H2 node
for elt in mark.parent.nextSiblingGenerator():
    if elt.name == "h2":
        break
    if hasattr(elt, "text"):
        plot.append(elt.text)

现在我只想提取其中包含粗体元素的段落，我该如何实现？

Answer 1

这是您要找的吗？我在您的代码中添加了几行。我使用了 lxml 解析器。（html 也很好）。

from bs4 import BeautifulSoup as bs 
import lxml
import ssl
import requests
ssl._create_default_https_context = ssl._create_unverified_context

url = 'https://wikitravel.org/en/Bhopal'
content = requests.get('https://wikitravel.org/en/Bhopal').text
soup = bs(content, 'lxml')

plot =[]
mark = soup.find(id="See")

# # # walk through the siblings of the parent (H2) node 
# # # until we reach the next H2 node
for elt in mark.parent.next_siblings:
    if elt.name == "h2":
        break
    if hasattr(elt, "text") and (elt.find('b')):
        plot.append(elt.text)
print(*plot,sep=('\n')) #Just to print the list in a readable way

我的 jupyter notebook 上输出的前几行：

如何仅提取包含粗体元素的 html 段落元素

How to extract html paragraph elements only if they contain bold elements

python

html

wikipedia