def pagerank(url):
  """Return the PageRank number that would show for this URL in Google Toolbar."""
  import urllib
  def CheckHash(HashInt):
    HashStr = "%u" % (HashInt)
    Flag = 0
    CheckByte = 0
    i = len(HashStr) - 1
    while i >= 0:
      Byte = int(HashStr[i])
      if 1 == (Flag % 2):
        Byte *= 2;
        Byte = Byte / 10 + Byte % 10
      CheckByte += Byte
      Flag += 1
      i -= 1
    CheckByte %= 10
    if 0 != CheckByte:
      CheckByte = 10 - CheckByte
      if 1 == Flag % 2:
        if 1 <= CheckByte % 2:
          CheckByte += 9
        CheckByte >>= 1
    return '7' + str(CheckByte) + HashStr
  def HashURL(Str):
    def  IntStr(String, Integer, Factor):
      for i in range(len(String)) :
        Integer *= Factor
        Integer &= 0xFFFFFFFF
        Integer += ord(String[i])
      return Integer
    C1 = IntStr(Str, 0x1505, 0x21)
    C2 = IntStr(Str, 0, 0x1003F)
    C1 >>= 2
    C1 = ((C1 >> 4) & 0x3FFFFC0) | (C1 & 0x3F)
    C1 = ((C1 >> 4) & 0x3FFC00) | (C1 & 0x3FF)
    C1 = ((C1 >> 4) & 0x3C000) | (C1 & 0x3FFF)
    T1 = (C1 & 0x3C0) << 4
    T1 |= C1 & 0x3C
    T1 = (T1 << 2) | (C2 & 0xF0F)
    T2 = (C1 & 0xFFFFC000) << 4
    T2 |= C1 & 0x3C00
    T2 = (T2 << 0xA) | (C2 & 0xF0F0000)
    return (T1 | T2)
  hsh = CheckHash(HashURL(url))
  gurl = 'http://toolbarqueries.google.com/tbr?client=navclient-auto&features=Rank:&q=info:%s&ch=%s' % (urllib.quote(url), hsh)
  f = urllib.urlopen(gurl)
  st = f.read()
  st = st.lstrip().rstrip()
  st = st[9:]
  try:
    st = int(st)
  except:
    st = 0
  return st
dataset/ETHPy150Open miklevin/pipulate/common.py/pagerank/operator `==` -> `<=`