Tiny script to scrape Apple Online Store every second and check for changes in MacBook availability

mbp.py

import urllib2
import re
import time
import pycurl
import StringIO

#url = "http://78.10.81.103:19100/mbp.html"
url = "http://store.apple.com/pl/browse/home/shop_mac/family/macbook_pro/select"

prev_delivery = (None, None)

while True:
    #f = urllib2.urlopen(url)
    #html = f.read()

    b = StringIO.StringIO()
    c = pycurl.Curl()
    c.setopt(pycurl.URL, url)
    c.setopt(pycurl.PROXY, 'localhost')
    c.setopt(pycurl.PROXYPORT, 40000)
    c.setopt(pycurl.PROXYTYPE, pycurl.PROXYTYPE_SOCKS5)
    c.setopt(pycurl.WRITEFUNCTION, b.write)
    c.perform()
    html = b.getvalue()

    delivery = re.findall('<li class="description">\s*[^/]*?<sup>1</sup>\s*</li>.*?<span class="customer_commit_display">(.*?)</span>', html, re.S)
    for i in range(len(delivery)):
        if delivery[i] != prev_delivery[i]:
            print 'Change: ', delivery
            for j in range(5):
                print('\a'*5)
                time.sleep(0.5)
            break
    prev_delivery = delivery

    print time.strftime("%H:%M:%S")
    time.sleep(1)