gistfile1.py

# Grab captcha from douban login page
import urllib
import urllib2
import requests
import re

url = 'http://www.douban.com/accounts/login'
local = '/home/wilbeibi/Dropbox/Papers/Materials/Pool/douban/do'
i = 0
name = ""
while i < 200:
    page = urllib.urlopen(url).read()
    pat = "http:\/\/www\.douban\.com\/misc\/captcha\?id=\w{24,26}\&amp;size=s"
    pic_url=re.search(pat,page).group(0)
    pic_url=pic_url[:-11]+";size=s"
    name = str(i) + ".jpg"
    urllib.urlretrieve(pic_url,local + name)
    print "Grabbing %s successful!" %name
    i += 1