[FIXED] how to extract only classes from all tables of a webpage in python?

Issue

from bs4 import BeautifulSoup
import requests

req = requests.get("https://en.wikipedia.org/wiki/Harvard_University")
html_soup=soup.findAll('table', style="text-align:center; float:right; font-size:85%; margin-right:2em;")

classes=soup.findAll('tables')

How to extract only class names from all the tables ?

Solution

You can use findAll() to select all the tables. Then loop through the tables and add the classes to a set (to avoid duplicates).

from bs4 import BeautifulSoup
import requests

page = requests.get("https://en.wikipedia.org/wiki/Harvard_University")
soup = BeautifulSoup(page.text, 'html.parser')

tables = soup.findAll("table")
classes = set()

for t in tables:
    if t.has_attr('class'):
        classes.update(t['class'])

l = list(classes)
print(l)

Answered By - jignatius