Use web scraping para acompanhar seus pedidos na Ticketmaster

#!/usr/bin/env python
#-*- coding:utf-8 -*-
 
import urllib
import urllib2
import pynotify
 
 
_BASE_URL  = 'https://ticketing.ticketmaster.com.br'
_LOGIN_URI = '%s/shwLogin.cfm' % _BASE_URL
_ORDER_URI = '%s/shwCompraDetalhe.cfm?pedidoID=%%s' % _BASE_URL
 
_ORDERS_LINK = '<a href="%s">More...</a>' % _LOGIN_URI
 
_PRIORITY_LOW      = pynotify.URGENCY_LOW
_PRIORITY_NORMAL   = pynotify.URGENCY_NORMAL
_PRIORITY_CRITICAL = pynotify.URGENCY_CRITICAL
 
_NOTIFICATION_TITLE = 'Ticketmaster Order %s'
_STATUS_CODES = {
    'Livre'      : ('Not processed yet'      , _PRIORITY_LOW),
    'StdReserva' : ('Reserving your tickets' , _PRIORITY_NORMAL),
    'StdCobranca': ('Charging your tickets'  , _PRIORITY_NORMAL),
    'VendaOk'    : ('Billed'                 , _PRIORITY_CRITICAL),
    'Recusada'   : ('Rejected'               , _PRIORITY_CRITICAL)
}
 
 
def initialize_notification_system(app_title):
    if not pynotify.init(app_title):
        import sys
        sys.exit(1)
 
 
def display_message(title, message, priority=_PRIORITY_CRITICAL):
    message = pynotify.Notification(title, message)
    message.set_urgency(priority)
    message.show()
 
 
def check_orders(email, password, order_ids):
    try:
        opener = urllib2.build_opener(urllib2.HTTPCookieProcessor())
        login(opener, email, password)
        try:
            for order_id in order_ids:
                show_order_status(opener, order_id)
        except:
            title = _NOTIFICATION_TITLE % order_id
            display_message(title, 'Cannot check status')
    except:
        display_message('Ticketmaster', 'Login failed')
 
 
def login(opener, email, password):
    params = urllib.urlencode({'email': email, 'senha': password})
    response = opener.open('%s?tentaLogin=1' % _LOGIN_URI, params)
 
    # Invalid credentials check
    if response.read().find('senha incorreta') >= 0:
        raise Exception
 
 
def show_order_status(opener, order_id):
    response = opener.open(_ORDER_URI % order_id)
    content = response.read()
 
    # Search for the order status codes
    for key, value in _STATUS_CODES.items():
        if content.find(key) >= 0:
            title = _NOTIFICATION_TITLE % order_id
            message = '%s. %s' % (value[0], _ORDERS_LINK)
            display_message(title, message, value[1])
            break
    else:
        display_message(_NOTIFICATION_TITLE % order_id, 'Status not found')
 
 
def main():
    initialize_notification_system("Ticketmaster Order Status")
 
    import optparse
    p = optparse.OptionParser()
 
    # Required command line options
    p.add_option('--email'    , '-e', \
        help='E-mail address used in your Ticketmaster credentials.')
    p.add_option('--password' , '-p', \
        help='Password used in your Ticketmaster credentials.')
    p.add_option('--order-ids', '-o', \
        help='Order IDs to be checked, separated by collons.')
 
    options = p.parse_args()[0]
    if not options.email or not options.password or not options.order_ids:
        p.print_help()
    else:
        order_ids = map(lambda s: s.strip(), options.order_ids.split(','))
        check_orders(options.email, options.password, order_ids)
 
 
if __name__ == '__main__':
    main()