#!/usr/bin/python

import httplib, re, base64, urllib

# Twitter user and password
username = 'santisaez'
password = ''

# HTTP request to get weather forecast from canalmeteo.elcorreo.com
h = httplib.HTTPConnection('canalmeteo.elcorreo.com')
h.request('GET', '/ciudad.php?id_ciudad=79')
response = h.getresponse()
data = response.read()

# Parse HTML response and extract data
regex = re.compile('<td colspan="4">(.*)</td>')
result = regex.findall(data)

# Update Twitter status with weather forecast
authentication = { "Authorization": "Basic %s" % base64.encodestring("%s:%s" % (username, password)).strip() }
h = httplib.HTTPConnection('twitter.com')
h.request('POST', '/statuses/update.xml', urllib.urlencode({ 'status': result[1] }), authentication)