Python: Downloading Files from the Web

from urllib import request

goog_url = 'http://www.XXXXXXXX.com/index.html'
def download_stock_data(url):
    response = request.urlopen(url) # avataan osoite    

    dada = response.read() # luetaan osoitteen dada muuttujaan

    dada_str = str(dada) #muutetaan dada stringiksi

    lines = dada_str.split('\\n') #jaetaan tiedosto osiin listaksi

    tiedosto = r'goog.txt' #r = raw string? http://stackoverflow.com/questions/2081640/what-exactly-do-u-and-r-string-flags-do-in-python-and-what-are-raw-string-l    fx = open(tiedosto, 'w')
    for line in lines:
        fx.write(line + '\n')
    fx.close()

download_stock_data(goog_url)