python-license-expression
Port variant v13
Summary License expression handler library (3.13)
Package version 30.4.3
Homepage https://github.com/aboutcode-org/license-expression
Keywords python
Maintainer Python Automaton
License Not yet specified
Other variants v12
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Last modified 27 JUN 2025, 00:13:56 UTC
Port created 28 FEB 2025, 23:01:01 UTC
Subpackage Descriptions
single ================== license-expression ================== ``license-expression`` is a comprehensive utility library to parse, compare, simplify and normalize license expressions (such as SPDX license expressions) using boolean logic. - License: Apache-2.0 - Python: 3.9+ - Homepage: https://github.com/aboutcode-org/license-expression/ - Install: `pip install license-expression` also available in most Linux distro. Software project licenses are often a combination of several free and open source software licenses. License expressions -- as specified by SPDX -- provide a concise and human readable way to express these licenses without having to read long license texts, while still being machine-readable. License expressions are used by key FOSS projects such as Linux; several packages ecosystem use them to document package licensing metadata such as npm and Rubygems; they are important when exchanging software data (such as with SPDX and SBOM in general) as a way to express licensing precisely. ``license-expression`` is a comprehensive utility library to parse, compare, simplify and normalize these license expressions (such as SPDX license expressions) using boolean logic like in: `GPL-2.0-or-later WITH Classpath-exception-2.0 AND MIT`. It includes the license keys from SPDX https://spdx.org/licenses/ (version 3.26) and ScanCode LicenseDB (from scancode-toolkit version 32.3.1, last published on 2025-01-10). See https://scancode-licensedb.aboutcode.org/ to get started quickly. ``license-expression`` is both powerful and simple to use and is a used as the license expression engine in several projects and products such as: - AboutCode-toolkit https://github.com/aboutcode-org/aboutcode-toolkit - AlekSIS (School Information System) https://edugit.org/AlekSIS/official/AlekSIS-Core - Conda forge tools https://github.com/conda-forge/conda-smithy - DejaCode https://enterprise.dejacode.com - DeltaCode https://github.com/nexB/deltacode - FenixscanX https://github.com/SmartsYoung/FenixscanX - FetchCode https://github.com/aboutcode-org/fetchcode - Flict https://github.com/vinland-technology/flict and https://github.com/vinland-technology - license.sh https://github.com/webscopeio/license.sh - liferay_inbound_checker https://github.com/carmenbianca/liferay_inbound_checker - REUSE https://reuse.software/ and https://github.com/fsfe/reuse-tool - ScanCode-io https://github.com/aboutcode-org/scancode.io - ScanCode-toolkit https://github.com/aboutcode-org/scancode-toolkit - SecObserve https://github.com/MaibornWolff/SecObserve See also for details: - https://spdx.github.io/spdx-spec/v2.3/SPDX-license-expressions ``license-expression`` is also packaged for most Linux distributions. See below. Alternative: There is no known alternative library for Python, but there are several similar libraries in other languages (but not as powerful of course!): - JavaScript https://github.com/jslicense/spdx-expression-parse.js - Rust https://github.com/ehuss/license-exprs - Haskell https://github.com/phadej/spdx - Go https://github.com/kyoh86/go-spdx - Ada https://github.com/Fabien-Chouteau/spdx_ada - Java https://github.com/spdx/tools and https://github.com/aschet/spdx-license-expression-tools Source code and download ======================== - GitHub https://github.com/aboutcode-org/license-expression.git - PyPI https://pypi.python.org/pypi/license-expression Also available in several Linux distros: - Arch Linux https://archlinux.org/packages/extra/any/python-license-expression/ - Debian https://packages.debian.org/unstable/source/license-expression - DragonFly BSD https://github.com/DragonFlyBSD/DPorts/tree/master/textproc/py-license-expression - Fedora https://src.fedoraproject.org/rpms/python-license-expression/ - FreeBSD https://www.freshports.org/textproc/py-license-expression - NixOS
Configuration Switches (platform-specific settings discarded)
PY312 OFF Build using Python 3.12 PY313 ON Build using Python 3.13
Package Dependencies by Type
Build (only) python313:dev:std
python-pip:single:v13
autoselect-python:single:std
Build and Runtime python313:primary:std
Runtime (only) python-boolean.py:single:v13
Download groups
main mirror://PYPIWHL/03/ba/f6f6573bb21e51b838f1e7b0e8ef831d50db6d0530a5afaba700a34d9e12
Distribution File Information
fd3db53418133e0eef917606623bc125fbad3d1225ba8d23950999ee87c99280 117085 python-src/license_expression-30.4.3-py3-none-any.whl
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