Example building RDF with rdflib

rdfbuild.py

"""Build RDF with rdflib and serialize in turtle format."""

import rdflib
from rdflib.namespace import DCTERMS, RDF, RDFS, SKOS

GOLD = rdflib.Namespace('http://purl.org/linguistics/gold/')

LANGUOID = rdflib.Namespace('http://glottolog.org/resource/languoid/id/')

VOID = rdflib.Namespace('http://rdfs.org/ns/void#')

PREFIXES = {'dcterms': DCTERMS,
            'gold': GOLD,
            'languoid': LANGUOID,
            'rdf': RDF,
            'rdfs': RDFS,
            'skos': SKOS,
            'void': VOID}


g = rdflib.Graph()

for prefix, namespace in PREFIXES.items():
    g.bind(prefix, namespace, replace=True)

l = LANGUOID['ainu1252']

name_en = rdflib.Literal('Ainu', lang='en')

g.add((l, RDF.type, DCTERMS.LinguisticSystem))
g.add((l, RDF.type, GOLD.LanguageFamily))
g.add((l, RDFS.label, name_en))

g.add((l, VOID.inDataset, rdflib.URIRef('http://glottolog.org/')))

g.add((l, DCTERMS.title, name_en))
g.add((l, DCTERMS.spatial, rdflib.Literal('Eurasia')))

g.add((l, SKOS.prefLabel, name_en))
g.add((l, SKOS.altLabel, rdflib.Literal('ainu1252', lang='x-clld')))
g.add((l, SKOS.scopeNote, rdflib.Literal('language', lang='x-clld')))
g.add((l, SKOS.editorialNote, rdflib.Literal('established')))

g.add((l, SKOS.narrower, LANGUOID['ainu1240']))
g.add((l, SKOS.narrower, LANGUOID['kuri1271']))
g.add((l, SKOS.narrower, LANGUOID['sakh1245']))

print(g.serialize())