meli.py

from __future__ import print_function

from datetime import datetime
from urllib2 import urlopen

SITES = ['http://produto.mercadolivre.com.br/MLB-726627332-mini-pc-intel-nuc-i5-16gb-ssd-250-samsung-evo-5i5ryh-_JM', 'http://produto.mercadolivre.com.br/MLB-726629981-surface-4-pro-i5-8gb-ram-256-hd-teclado-e-mouse-_JM', 'http://produto.mercadolivre.com.br/MLB-716571875-iphone-6-plus-com-128gb-na-cor-space-gray-_JM']  # URL of the site to check

def lambda_handler(event, context):
    try:
        for num in range(1,10):
            for s in SITES:
                print('Checking {}...'.format(s))
                urlopen(s).read()
    except:
        print('Check failed!')
        raise
    else:
        print('Check passed!')
    finally:
        print('Check complete at {}'.format(str(datetime.now())))