#!/usr/bin/env python

from rdflib import ConjunctiveGraph
from lcsh.namespaces import SKOS
from re import match

g = ConjunctiveGraph('Sleepycat')
g.open('store')

prefixes = {}

try:
    for s in g.subjects(predicate=SKOS['prefLabel']):
        m = match('^http://lcsh.info/([a-z]+)', s)
        prefix = m.group(1)
        prefixes[prefix] = prefixes.get(prefix, 0) + 1

finally:
    g.close()


for prefix in prefixes.keys():
    print "%s [%s]" % (prefix, prefixes[prefix])