jcl-parser
Python library for parsing IBM z/OS JCL (Job Control Language) into structured Job, Step, and DD objects. Supports PROC expansion, validation, lint rules, SQL detection, and dataset lifecycle analysis.
Install
pip install -e ".[dev]"
Requires Python 3.10+. No runtime dependencies.
Quick Start
import jclparser
job = jclparser.parse_jcl(source)
print(job.name)
print(job.steps[0].program)
CLI:
jcl-parser FILE steps # list all steps
jcl-parser FILE --validate # validate JCL
jcl-parser FILE lint # run lint rules
jcl-parser FILE --json # full parse result as JSON
Commands
# Tests
pytest
pytest -m unit
# Lint / format / type-check
ruff check . && ruff format .
mypy jclparser/
# Vendor sync (after changes to jclparser/) — rm first: plain `cp -r` nests
# into dest/jclparser/jclparser/ and leaves stale files when dest exists
rm -rf ../backend/_vendor/jcl-parser/jclparser && cp -r jclparser/ ../backend/_vendor/jcl-parser/jclparser
Documentation
Full reference: .okf/index.md
License
GNU Affero General Public License v3.0 or later — Copyright © 2026 Samuel Dion. See LICENSE.
1 maintainer
Metadata
1 maintainer
Release files for jcl-parser 2.1.0
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