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Editorial Team
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Asked: 2026-05-20T15:56:26+00:00

I am using python + BeautifulSoup to parse an HTML document. Now I need

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I am using python + BeautifulSoup to parse an HTML document.

Now I need to replace all <h2 class="someclass"> elements in an HTML document, with <h1 class="someclass">.

How can I change the tag name, without changing anything else in the document?

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1 Answer

  1. Editorial Team

    I don’t know how you’re accessing tag but the following works for me:

    import BeautifulSoup

if __name__ == "__main__":
    data = """
<html>
<h2 class='someclass'>some title</h2>
<ul>
   <li>Lorem ipsum dolor sit amet, consectetuer adipiscing elit.</li>
   <li>Aliquam tincidunt mauris eu risus.</li>
   <li>Vestibulum auctor dapibus neque.</li>
</ul>
</html>

    """
    soup = BeautifulSoup.BeautifulSoup(data)
    h2 = soup.find('h2')
    h2.name = 'h1'
    print soup

    Output of print soup command is:

    <html>
<h1 class='someclass'>some title</h1>
<ul>
<li>Lorem ipsum dolor sit amet, consectetuer adipiscing elit.</li>
<li>Aliquam tincidunt mauris eu risus.</li>
<li>Vestibulum auctor dapibus neque.</li>
</ul>
</html>

    As you can see, h2 became h1. And nothing else in the document changed. I am using Python 2.6 and BeautifulSoup 3.2.0.

    If you have more than one h2 and you want to change them all, you could simple do:

    soup = BeautifulSoup.BeautifulSoup(your_data)
while True: 
    h2 = soup.find('h2')
    if not h2:
        break
    h2.name = 'h1'
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