SPARQL Slurper for rdflib

Revision History

• 0.1.0 - Initial drop
• 0.1.1 - Added debug_slurps parameter
• 0.1.2 - Added diagnostic parameters
• 0.1.3 - Lock out sparql access during serialize
• 0.1.4 - Add persistent_bnodes parameter
• 0.2.0 - Switch over to pbr and pipenv
• 0.2.1 - Add ability to supply a named graph and diagnostic/debug query results
• 0.3.4 - Add GraphDBSlurpyGraph - A graph slurper that crosses pseudo blank nodes in GraphDB stores
• 0.3.6 - Got rid of the dash in the name, which was turning into an underscore in pypi

An implementation of a rdflibGraph that acts as a cache for a SPARQL endpoint.
SPARQL Slurper translates the Graph.triples() function into the corresponding SPARQL query and resolves it against an endpoint.

Requirements

• Python 3.6 or higher -- this module uses the new typing annotations
• rdflib -- a Python library for working with RDF
• sparqlwrapper -- A wrapper for a remot SPARQL endpoint

Use

See Jupyter notebook

Issues and notes

• We still need to add BNode reification -- at the moment this code generates a ValueError if it crosses a BNode boundary
  • Release 0.1.4: you can now ask the slurper to assume BNodes persist across calls - a potentially dangerous option as mostly they don't
  • Release 0.3.4: you can map BNodes into GraphDB persistent URI's with GraphDBSlurpyGraph