human
Solve the following python programming problem given the following code:
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 &= 4294967295 
                Integer += ord (String [i]) 
return Integer 
C1 = IntStr (Str, 5381, 33) 
        C2 = IntStr (Str, 0, 65599) 
        C1 >>= 2 
        C1 = (((C1 >> 4) & 67108800) | (C1 & 63)) 
        C1 = (((C1 >> 4) & 4193280) | (C1 & 1023)) 
        C1 = (((C1 >> 4) & 245760) | (C1 & 16383)) 
        T1 = ((C1 & 960) << 4) 
        T1 |= (C1 & 60) 
        T1 = ((T1 << 2) | (C2 & 3855)) 
        T2 = ((C1 & 4294950912) << 4) 
        T2 |= (C1 & 15360) 
        T2 = ((T2 << 10) | (C2 & 252641280)) 
        return (T1 | T2) 
hsh = CheckHash (HashURL (HashURL)) 
    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 

    
    

    Fix the buggy line: hsh = CheckHash (HashURL (HashURL))
assistant
#Here is Python code to fix the buggy line: hsh = CheckHash (HashURL (HashURL))
.

hsh = CheckHash (HashURL (url))