sp500 constituents - KamarajuKusumanchi/market_data GitHub Wiki

https://en.wikipedia.org/wiki/List_of_S%26P_500_companies contains the latest sp500 constituents.

https://github.com/wazabata/p4fin/blob/master/Code_part1/12_ML_Classifier.py contains some code to parse the wikipage.

This article might be helpful - https://roche.io/2016/05/scrape-wikipedia-with-python

snippet to get revision number of a wikipedia article 

    import re
from bs4 import BeautifulSoup
import requests
from urllib.parse import urlparse, parse_qs

url="https://en.wikipedia.org/wiki/List_of_S&P_500_companies"
resp = requests.get(url)
soup = BeautifulSoup(resp.text, "lxml")
line=soup.find('a', attrs={'title': re.compile("Information on how to cite this page")})
link=line.get('href')
query_string=urlparse(link).query
id=parse_qs(query_string).get('id', None)[0]

    Check if this is any useful - https://pythonspot.com/en/extract-links-from-webpage-beautifulsoup/

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