Fork of https://github.com/oxigraph/oxigraph.git for the purpose of NextGraph project
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54 lines
1.5 KiB
54 lines
1.5 KiB
4 years ago
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Oxigraph Python (``pyoxigraph`` |release|)
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==========================================
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Oxigraph is a graph database implementing the `SPARQL <https://www.w3.org/TR/sparql11-overview/>`_ standard.
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It offers two stores with `SPARQL 1.1 Query <https://www.w3.org/TR/sparql11-query/>`_ capabilities.
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One of the store is in-memory, and the other one is disk based.
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It also provides a set of utility functions for reading, writing and processing RDF files.
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The stores are also able to load and dump RDF data serialized in
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`Turtle <https://www.w3.org/TR/turtle/>`_,
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`TriG <https://www.w3.org/TR/trig/>`_,
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`N-Triples <https://www.w3.org/TR/n-triples/>`_,
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`N-Quads <https://www.w3.org/TR/n-quads/>`_ and
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`RDF/XML <https://www.w3.org/TR/rdf-syntax-grammar/>`_.
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Oxigraph source code is on `GitHub <https://github.com/oxigraph/oxigraph/tree/master/python>`_.
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Installation
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""""""""""""
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Just run the usual ``pip install pyoxigraph``.
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Example
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"""""""
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Insert the triple ``<http://example/> <http://schema.org/name> "example"`` and print the name of ``<http://example/>`` in SPARQL:
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::
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from pyoxigraph import *
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store = MemoryStore()
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ex = NamedNode('http://example/')
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schemaName = NamedNode('http://schema.org/name')
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store.add((ex, schemaName, Literal('example')))
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for binding in store.query('SELECT ?name WHERE { <http://example/> <http://schema.org/name> ?name }'):
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print(binding['name'].value)
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Table of contents
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"""""""""""""""""
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.. toctree::
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:maxdepth: 2
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model
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io
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store/memory
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store/sled
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