Amazon.it Price Analyzer

#!/usr/bin/env python2


import os
import re
import urllib

# Aggiungi i codici che trovi in nell'indirizzo della pagina dell'oggetto
# come elementi della variabile %codes
# (es: http://www.amazon.it/Call-Duty-Modern-Warfare-3/dp/B005DEZRA6/
# codice=B005DEZRA6)
codes = [
    'B0002UYA8Q', # Summit [Edizione: Germania]
    'B000268AZE', # Reunion Cumbre [Edizione: Germania]
    'B000BYAD20', # Complete Studio Recordings [Edizione: Francia]
    'B00004TY56', # Bossa Antigua [Edizione: Francia]
    'B0012BMMZC', # Getz Meets Mulligan In Hi-Fi [Edizione: Francia]
    'B0000365G8', # Sweet & Lowdown [Colonna sonora]
    ]

# Cambia il nome del file come preferisci, ora come ora salva sulla home un
# file di "nome AmazonPriceHistory.log"
logFilename = os.path.join(os.getenv('HOME'),'AmazonPriceHistory.log')
if not os.path.exists(logFilename):
    with open(logFilename,'w') as fp: fp.write('')


def Elaborate(code):
    p = re.compile(' *<.*(EUR )([^<]*)</b.*')
    d = re.compile(' *<[^>]*>([^<]*)<span.*>')
    address = 'http://www.amazon.it/gp/product/%s/' % ( code )
    content = urllib.urlopen(address)
    content = content.read().splitlines()
    for line in content:
        if line.count('EUR') and line.count('priceLarge'):
            largePrice = eval(p.match(line).group(2).replace(',','.'))
        if line.count("btAsinTitle"):
            itemName = d.match(line).group(1)
    with open(logFilename) as fp:
        fileCont = fp.read().splitlines()
        for idx in range(len(fileCont)):
            items = fileCont[idx].split('\t')
            if items[0] == itemName:
                items[1] += ',%s' % largePrice
                fileCont[idx] = '\t'.join(items)
                break
            if idx == len(fileCont)-1:
                fileCont.append('%s\t%s' % (itemName, largePrice))
    with open(logFilename, 'w') as fp:
        fp.write('\n'.join(fileCont)+'\n')
    print '%s done: %s > %.2f' % (code, itemName, largePrice)

if __name__ == '__main__':
    for ind in codes:
        Elaborate(ind)