Skip to main content

Implements a triplestore using Redis to store relations, in Python.

Project description

redis_triplestore

Implements a triplestore using Redis to store relations, in Python.

Requires Redis 2.0+, newest version of redis-py and redis_wrap.

redis-py can be downloaded from here: * http://github.com/andymccurdy/redis-py

Note that you can use the requirements.txt file to install dependencies with pip.

Examples

Atribution:

FOAF = Namespace('http://xmlns.com/foaf/0.1/')

frodo = Resource('http://example.com/comte/frodo', **{
    FOAF.name: 'Frodo',
    FOAF.familyName: 'Baggins',
})
assert frodo[FOAF.name] == 'Frodo'

Persistence:

frodo = Resource('http://example.com/comte/frodo')
assert frodo[FOAF.name] == 'Frodo'

gandalf = Resource('http://example.com/wizards/gandalf', **{
    FOAF.name: 'Gandalf',
    FOAF.familyName: 'the White',
})
saruman = Resource('http://example.com/wizards/saruman', **{
    FOAF.name: 'Saruman',
    FOAF.familyName: 'of Many Colors',
})

Relations:

frodo.add_relation(FOAF.knows, gandalf)
assert frodo.relations(FOAF.knows) == [gandalf]
gandalf.add_relation(FOAF.knows, saruman)
assert gandalf.relations(FOAF.knows) == [saruman]
assert gandalf.reversed_relations(FOAF.knows) == [frodo]
frodo.add_relation(FOAF.knows, saruman)
assert frodo.relations(FOAF.knows) == [gandalf, saruman]

Clean up:

frodo.delete_relation(FOAF.knows, saruman)
assert frodo.relations(FOAF.knows) == [gandalf]
frodo.delete_relation(FOAF.knows, gandalf)
gandalf.delete_relation(FOAF.knows, saruman)
assert gandalf.relations(FOAF.knows) == []
assert gandalf.reversed_relations(FOAF.knows) == []
frodo.remove()
gandalf.remove()
saruman.remove()
assert frodo[FOAF.name] == None

Copyright: 2010 by David Larlet License: BSD.

Project details


Release history Release notifications | RSS feed

This version

0.1

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

redis_triplestore-0.1.tar.gz (2.5 kB view hashes)

Uploaded Source

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page