Can I create an algorithm for detected a change of a things of a page?(examples, user politics) but a page the is not mine

Question

What programs I need?

Answer 1

in python you could write a web crawler using the libraries "urllib", "requests" and "BeautifulSoup".

Answer 2

https://code.sololearn.com/ctO24ipkErFF/?ref=app

Answer 3

Thanks you very much!