from urllib2 import urlopen
import re

url = "http://tinderbox.flock.com/builds/trunk/windows/latest/"
page = urlopen(url)
source = page.read()
print source
#pat = "flock-[\d\.]+-en-US\.win32\.zip"
pat = "flock"
prog = re.compile(pat)
result = prog.search(source)
print result.groups()