sparqlslurper

library0.5.1pypypi✓ verified 84d ago

SPARQL Slurper is a Python library that provides an easy way to execute SPARQL queries and iterate over results using rdflib. Version 0.5.1 is the latest stable release, with a maintenance-focused release cadence. It supports Python >=3.7.4.

database http-networking

pip install sparqlslurper

github ↗package ↗

INSTALL

IMPORT

SIG · SPARQLSLURPER

sparqlslurper

databasepythonv0.5.1

Install

2.3s avg

Import

331ms

Disk

22MB

Pass rate

10/ 10

Env Coverage10 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v0.5.1 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.95 runs

installs and imports cleanly · install 0.0s · import 0.348s · 23.7MB

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 2.3s · import 0.314s · 24MB

22MB installed

● package 22MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

SlurpyGraph

✓ from sparqlslurper import SlurpyGraph

✗ from sparqlslurper import SlurperGraph

Common typo: 'SlurperGraph' does not exist; use 'SlurpyGraph'.

Load an RDF graph, slurp SPARQL results, and iterate rows.

from sparqlslurper import SlurpyGraph from rdflib import Graph g = Graph() g.parse('https://example.org/data.ttl', format='turtle') slurper = SlurpyGraph(g) for row in slurper.query('SELECT ?s ?p ?o WHERE { ?s ?p ?o } LIMIT 10'): print(row.s, row.p, row.o)

Debug

Known issues

gotchaSlurpyGraph consumes all query results eagerly; large result sets may cause memory issues.

fix

Use SPARQLWrapper or rdflib's query() directly for streaming if memory is a concern.

affects: all

gotchaQuery results are returned as namedtuple-like objects; field names depend on SPARQL variable names.

fix

Always verify variable names in SELECT clause (e.g., row.s, row.p). Use row.asdict() for dict access.

affects: all

deprecatedThe 'sparqlslurper' package has not seen updates since 2021; consider alternatives like rdflib's query directly.

fix

Use rdflib's Graph.query() or SPARQLWrapper for active development.

affects: all

Errors

Common errors & fixes

ImportError: cannot import name 'SlurpyGraph' from 'sparqlslurper'

Installed version is too old (pre-0.5.0) or package name mismatch.

fix

Upgrade sparqlslurper: pip install --upgrade sparqlslurper. Correct import: from sparqlslurper import SlurpyGraph.

AttributeError: 'NoneType' object has no attribute 's'

SPARQL query returned no results; .s attribute is accessed on None row.

fix

Check if query returns results: for row in results: ... or handle with if results:.

sparqlslurper.SPARQLQueryError: (sparqlslurper) Query error: ...

Invalid SPARQL syntax or endpoint issues.

fix

Verify SPARQL syntax with an online validator or endpoint URL. Ensure prefixes are declared.

Upgrade

Version history

0.5.1latest on PyPI · released Dec 21, 2021

Audit

Dependencies

rdflibrequiredCore dependency for RDF graph handling and SPARQL query engine.

SPARQLWrapperoptionalOptional: used for remote SPARQL endpoints.

Agent activity

18 hits · last 30 days

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