How do I fix wrongly nested / unclosed HTML tags?

Question

I need to sanitize HTML submitted by the user by closing any open tags with correct nesting order. I have been looking for an algorithm or Python code to do this but haven\'

Answer 1

I tried to use, below method but Failed on python 3

from BeautifulSoup import BeautifulSoup
soup = BeautifulSoup(page, 'html5lib')

I tried below and got Success

soup = bs4.BeautifulSoup(html, 'html5lib')
f_html = soup.prettify()
print(f'Formatted html::: {f_html}')