How to expand texts for a given set of ICONCLASS codes

expand.py

codes = ['31D11222', '34B11', '45(+26)', '45C1', '45D12', '48C7341']
codes = [urllib.quote(x) for x in codes]
paths = set()
for obj in json.loads(urllib2.urlopen('http://iconclass.org/json/?notation='+'&notation='.join(codes)).read()):
    paths.update(obj.get('p'))
    paths.add(obj.get('n'))
txts = []
kws = set()
for p in json.loads(urllib2.urlopen('http://iconclass.org/json/?notation='+'&notation='.join(paths)).read()):
    txts.append(p.get('txt').get('de', u''))
    for k in p.get('kw').get('de', []):
        kws.add(k)
txts.extend(sorted(kws))