Revision: 16757
at August 14, 2009 16:42 by halotis

Initial Code
```#!/usr/bin/env python
# -*- coding: utf-8 -*-
# (C) 2008 Fred Cirera
# ported in Python from the Ruby code by Vsevolod S. Balashov
# http://snippets.dzone.com/posts/show/3284

import urllib2
import re
import time
import sys

from urllib import urlencode
from pprint import pprint

def mix(a, b, c):
M = lambda v: v % 0x100000000 # int32 modulo
a, b, c = (M(a), M(b), M(c))

a = M(a-b-c) ^ (c >> 13)
b = M(b-c-a) ^ (a < <  8)
c = M(c-a-b) ^ (b >> 13)

a = M(a-b-c) ^ (c >> 12)
b = M(b-c-a) ^ (a < < 16)
c = M(c-a-b) ^ (b >> 5)

a = M(a-b-c) ^ (c >>  3)
b = M(b-c-a) ^ (a < < 10)
c = M(c-a-b) ^ (b >> 15)

return a, b, c

def checksum(iurl):
C2I = lambda s: sum(c < < 8*i for i, c in enumerate(s[:4]))
a, b, c = 0x9e3779b9, 0x9e3779b9, 0xe6359a60
lg  = len(iurl)
k = 0
while k <= lg-12:
a = a + C2I(iurl[k:k+4])
b = b + C2I(iurl[k+4:k+8])
c = c + C2I(iurl[k+8:k+12])
a, b, c = mix(a, b, c)
k += 12

a = a + C2I(iurl[k:k+4])
b = b + C2I(iurl[k+4:k+8])
c = c + (C2I(iurl[k+8:])<&lt;8) + lg
a, b, c = mix(a, b, c)
return c

I2C = lambda i: [i & 0xff, i >> 8 & 0xff,  i >> 16 & 0xff, i >> 24 & 0xff]
ch = checksum([ord(c) for c in value])
ch = ((ch % 0x0d) & 7) | ((ch/7) < < 2)
return "6%s" % checksum(sum((I2C(ch-9*i) for i in range(20)), []))

def make_url(host, site_url):
url = "info:" + site_url
params = dict(client="navclient-auto", ch="%s" % GoogleHash(url),
ie="UTF-8", oe="UTF-8", features="Rank", q=url)
return "http://%s/search?%s" % (host, urlencode(params))

# Where the fun begins

if __name__ == "__main__":
if len(sys.argv) != 2:
else:
url = sys.argv

if not url.startswith('http://'):
url = 'http://%s' % url

# print make_url(HOST, url)
req = urllib2.Request(make_url(HOST, url))
try:
f = urllib2.urlopen(req)
except Exception, err:
print err
sys.exit(1)

try:
rank = re.match(r'^Rank_\d+:\d+:(\d+)', response.strip()).group(1)
except AttributeError:
rank = -1

print "PageRank: %d\tURL: %s" % (int(rank), url)```

Initial URL
`http://www.halotis.com/2009/08/02/google-page-range-python-script/`

Initial Description
`lookup the google page rank of a website from python.  Uses the same interface that the Google Toolbar uses to get the value.`

Initial Title
`Google Page Range lookup`

Initial Tags
`page, google, web`

Initial Language
`Python`