我想用另一个标签替换标签,并将旧标签的内容放在新标签之前。例如:
我想改变这个:
<html>
<body>
<p>This is the <span id="1">first</span> paragraph</p>
<p>This is the <span id="2">second</span> paragraph</p>
</body>
</html>
进入这个:
<html>
<body>
<p>This is the first<sup>1</sup> paragraph</p>
<p>This is the second<sup>2</sup> paragraph</p>
</body>
</html>
我可以使用spans
轻松找到所有find_all()
,从id属性中获取数字,并使用replace_with()
将一个标记替换为另一个标记,但如何使用文本替换标记和新标记或在替换标记之前插入文本?
答案 0 :(得分:6)
我们的想法是找到包含span
属性id
CSS Selector}的每个span[id]
代码,使用insert_after()
插入sup
代码在它和unwrap()
之后用它的内容替换标签:
from bs4 import BeautifulSoup
data = """
<html>
<body>
<p>This is the <span id="1">first</span> paragraph</p>
<p>This is the <span id="2">second</span> paragraph</p>
</body>
</html>
"""
soup = BeautifulSoup(data)
for span in soup.select('span[id]'):
# insert sup tag after the span
sup = soup.new_tag('sup')
sup.string = span['id']
span.insert_after(sup)
# replace the span tag with it's contents
span.unwrap()
print soup
打印:
<html>
<body>
<p>This is the first<sup>1</sup> paragraph</p>
<p>This is the second<sup>2</sup> paragraph</p>
</body>
</html>