find_last.py

import sys

import bs4
import requests

from itertools import count


def get_unlimited(link):
    for i in count(1):
        response = requests.get("{}&page={}".format(link,i))
        yield response.content.decode()



link = sys.argv[1]
print(link)
past_attr="Nothing"
for content in get_unlimited(link):
    soup = bs4.BeautifulSoup(content)
    attr = soup.find("span","mb-timestamp")
    if not attr:
        break
    past_attr = attr

print(past_attr)

usage

python file.py "the link"

better use the " in the link or else in some link the whole link wouldnt be taken in.

NOTE - if you have lxml installed then just change the line

soup = bs4.BeautifulSoup(content)

to

soup = bs4.BeautifulSoup(content,"lxml")

as you know lxml is faster.