使用BeautifulSoup将HTML插入元素 [英] Insert HTML into an element with BeautifulSoup
问题描述
当我尝试将以下HTML插入元素时
When I try to insert the following HTML into an element
<div class="frontpageclass"><h3 id="feature_title">The Title</h3>... </div>
bs4像这样替换它:
<div class="frontpageclass"><h3 id="feature_title">The Title </h3>... <div></div>
我正在使用string，它仍然弄乱了格式.
I am using string and it is still messing up the format.
with open(html_frontpage) as fp:
soup = BeautifulSoup(fp,"html.parser")
found_data = soup.find(class_= 'front-page__feature-image')
found_data.string = databasedata
如果我尝试使用found_data.string.replace_with，则会收到NoneType错误. found_data是标签类型.
If I try to use found_data.string.replace_with I get a NoneType error. found_data is of type tag.
推荐答案
设置元素.text或.string会使该值经过HTML编码，这是正确的做法.这样可以确保在浏览器中显示文档时，您插入的文本将以1:1的形式显示.
Setting the element .text or .string causes the value to be HTML-encoded, which is the right thing to do. It ensures that the text you insert will appear 1:1 when the document is displayed in a browser.
如果要插入 actual HTML，则需要在树中插入新节点.
If you want to insert actual HTML, you need to insert new nodes into the tree.
from bs4 import BeautifulSoup
# always define a file encoding when working with text files
with open(html_frontpage, encoding='utf8') as fp:
soup = BeautifulSoup(fp, "html.parser")
target = soup.find(class_= 'front-page__feature-image')
# empty out the target element if needed
target.clear()
# create a temporary document from your HTML
content = '<div class="frontpageclass"><h3 id="feature_title">The Title</h3>...</div>'
temp = BeautifulSoup(content)
# the nodes we want to insert are children of the <body> in `temp`
nodes_to_insert = temp.find('body').children
# insert them, in source order
for i, node in enumerate(nodes_to_insert):
target.insert(i, node)
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