from bs4 import BeautifulSoup

import urllib2 #http://love-python.blogspot.nl/2008/02/get-html-source-of-url.html

url = 'http://services.runescape.com/m=itemdb_rs/top100.ws'

usock = urllib2.urlopen(url)
data = usock.read()
usock.close()

soup = BeautifulSoup(data).find_all('tbody')[0]

tr = soup.find_all('tr')
itnames = {}
itids = {}
for thistr in tr:
    td = thistr.find_all('td')
    a = td[0].find_all('a')[0]
    id = a['href'][a['href'].index('obj=')+4:]
    val = td[5].string
    if val[-1] == 'b':
        if val[-3:-1] == '.0':
            val = int(val[:-1])
        else:
            val = float(val[:-1])
    else:
        val = int(float(val[:-1]) * 1000)
    itnames[a.string] = val
    itids[id] = val

print obj

# itids now contains all data in the format {"2":107.6,...}
# itnames now contains all data in the format {"Cannonball":107.6,...}