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Python BeautifulSoup - find all class

Last Updated : 23 Jul, 2025

Prerequisite:- Requests , BeautifulSoup

The task is to write a program to find all the classes for a given Website URL. In Beautiful Soup there is no in-built method to find all classes.

Module needed:

bs4: Beautiful Soup(bs4) is a Python library for pulling data out of HTML and XML files. This module does not come built-in with Python. To install this type the below command in the terminal.

pip install bs4

requests: Requests allows you to send HTTP/1.1 requests extremely easily. This module also does not come built-in with Python. To install this type the below command in the terminal.

pip install requests

Methods #1: Finding the class in a given HTML document.

Approach:

Create an HTML doc.
Import module.
Parse the content into BeautifulSoup.
Iterate the data by class name.

Code:

Python3


 # html code
html_doc = """<html><head><title>Welcome  to geeksforgeeks</title></head>
<body>
<p class="title"><b>Geeks</b></p>


<p class="body">geeksforgeeks a computer science portal for geeks
</body>
"""

# import module
from bs4 import BeautifulSoup

# parse html content
soup = BeautifulSoup( html_doc , 'html.parser')

# Finding by class name
soup.find( class_ = "body" )

Output:

<p class="body">geeksforgeeks a computer science portal for geeks
</p>

Methods #2: Below is the program to find all class in a URL.

Approach:

Import module
Make requests instance and pass into URL
Pass the requests into a Beautifulsoup() function
Then we will iterate all tags and fetch class name

Code:

Python3


 # Import Module
from bs4 import BeautifulSoup
import requests

# Website URL
URL = 'https://www.geeksforgeeks.org/'

# class list set
class_list = set()

# Page content from Website URL
page = requests.get( URL )

# parse html content
soup = BeautifulSoup( page.content , 'html.parser')

# get all tags
tags = {tag.name for tag in soup.find_all()}

# iterate all tags
for tag in tags:

    # find all element of tag
    for i in soup.find_all( tag ):

        # if tag has attribute of class
        if i.has_attr( "class" ):

            if len( i['class'] ) != 0:
                class_list.add(" ".join( i['class']))

print( class_list )

Output:

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