Find Instagram User ID without API

userid.py

import urllib.request
from bs4 import BeautifulSoup as bs4
import re
import sys

p = urllib.request.urlopen(urllib.request.Request('https://www.instagram.com/%s/' % sys.argv[1]))

bs = bs4(p, 'html.parser')

data = bs.findAll("script")[3]

pattern = re.search(r'\"id":"(\d+)"', data.text)

print(pattern.group()[6:-1])

# python3 userid.py sa_cariotti
# > 1333088338