shexjsg

library0.8.2pypypiunverified

ShExJSG is a Python library that provides an abstract syntax tree (AST) for the ShEx 2.0 schema language, built on PyJSG and Antlr. It is used for parsing, validating, and generating ShEx schemas. Current version is 0.8.2, with a history of adaptation to newer rdflib and Python versions.

serialization

pip install shexjsg

package ↗

INSTALL

IMPORT

SIG · SHEXJSG

shexjsg

serializationpythonv0.8.2

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

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

ShExJ

✓ from ShExJSG import ShExJ

✗ from shexjsg import ShExJ

Parses a ShEx schema from a JSON string using ShExJSG.

from shexjsg import ShExJ from rdflib import Graph import json # Create a simple schema schema_json = '''{ "@context": "http://www.w3.org/ns/shex.jsonld", "type": "Schema", "shapes": [ { "id": "http://example.org/FooShape", "type": "Shape", "expression": { "type": "TripleConstraint", "predicate": "http://example.org/p", "valueExpr": { "type": "NodeConstraint", "datatype": "http://www.w3.org/2001/XMLSchema#string" } } } ] }''' # Parse and load schema schema = ShExJ() schema.loads(schema_json) print('Schema loaded successfully') print(json.dumps(schema.as_dict(), indent=2))

Debug

Known issues

breakingVersion 0.8.0 changed rdflib support from v4 to v5/v6. Code using rdflib 4 may break.

fix

Upgrade rdflib to >=5.0.0 or pin shexjsg to 0.7.1.

affects: <0.8.0

gotchaShExJSG depends on PyJSG, which itself generates code. Ensure PyJSG is installed and up-to-date to avoid import errors.

fix

Install/upgrade pyjsg: pip install pyjsg --upgrade

affects: all

Upgrade

Version history

0.8.2latest on PyPI · released Apr 14, 2022

Audit

Dependencies

pyjsgrequiredCore dependency for JSON Schema grammar

rdflibrequiredUsed for RDF handling and ShEx validation (v5 or v6)

antlr4-python3-runtimerequiredRequired for parsing with Antlr4

Agent activity

5 hits · last 30 days

node

Resources

packagehttps://pypi.org/project/shexjsg/ ↗