Beautiful Soup - Delete All HTML - Except Specific Classes

[snippsat]

Can use extract() and set class to True.

from bs4 import BeautifulSoup

html = '''\
<h2 class="1">section1</h2>
<p class="2">article1</p>
<p>article2</p>
<p class="3">article3</p>
<h1> Lorem Ipsum</h1>
<p> 3 Lorem ipsum dolor </p>",'lxml')
'''

soup = BeautifulSoup(html, 'lxml')
for tag in soup.find_all(['h2', 'p'], class_=True):
    print(tag.extract())

Output:
<h2 class="1">section1</h2>
<p class="2">article1</p>
<p class="3">article3</p>