brainappwatch.py

import time
from datetime import datetime
from email.utils import parsedate

# pip install requests beautifulsoup4
import requests
from bs4 import BeautifulSoup as BS


last = None

while True:
    try:
        res = requests.get('https://brain-library.com/web/book/search/result?sw=%E3%83%96%E3%83%AC%E3%83%BC%E3%83%B3%E3%82%A2%E3%83%97%E3%83%AA&res=false&brver=1')
    except:
        res = None

    if res is None or res.status_code not in [200, 404]:
        time.sleep(600)
        continue

    bs = BS(res.text, 'html.parser')
    apps = bs.find_all('li', class_='item-01-wrap')

    if last is None:
        print(f'Found apps at present: {len(apps)}')
        print("I'll tell you when a new app is released")
    elif last < len(apps):
        print('UPDATE!! {len(apps)} app(s)')

    last = len(apps)
    time.sleep(600)