neverblink-linkml

Fast and robust LinkML schema validation and code generation for Python, backed by LinkML-Scala compiled to a native shared library.

No JVM, no subprocess per schema, and no dependency on the linkml Python package. In our benchmarks the generators are 22.9–38.5x faster than the reference Python implementation.

Install

pip install neverblink-linkml

Usage

import linkml_scala

with linkml_scala.load_file("model.yaml") as schema:
    print(schema.json_schema())
    print(schema.shacl())
    for issue in schema.issues(linkml_scala.WARNING):
        print(issue["severity"], issue["message"])

load_file() will automatically resolve imports and parse the schema. You can reuse the Schema object for multiple generator calls, and it will automatically cache the parsed form of any imported schemas.

Generators available on a Schema: json_schema(), shacl(), rdfs(), linkml(), frictionless(), graphql(), er_diagram(), translation(), ossie(), and scala(), plus lint() for validation.

Going the other way, linkml_scala.from_ossie() reads an Apache Ossie (incubating) ontology and returns the corresponding LinkML schema as YAML or JSON.

To work from memory instead of the file system, use load_string() for a single schema or load_path() when imports are involved:

schema = linkml_scala.load_path("model.yaml", {
    "model.yaml": "...",
    "person.yaml": "...",  # referenced via `imports: - person`
})

Supported platforms

We provide both sdist (source distribution) and pre-built wheels for popular platforms (Linux, macOS, Windows, x86-64 and ARM64).

To build the package from source (sdist) you must have Java 17+ and Clang installed on your system. Please open an issue if you encounter any issues with the installation process.

Documentation

License

Apache 2.0.

Project links

Data verified by PyPI on Sep 17, 2026
Data provided by the project maintainers, verified at the time the release was uploaded to PyPI.

Key dates

PyPI data
Data sourced directly from PyPI's database.
  • Released:
Newer release available (0.16.2)

1 maintainer

PyPI data
Data sourced directly from PyPI's database.
Avatar for Ostrzyciel from gravatar.com Ostrzyciel

Credits

Author: NeverBlink

GitHub Statistics

Data verified by PyPI on Sep 17, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License expression

Apache-2.0
View SPDX License List

Requires

Python >=3.10

Tags

code-generation json-schema linkml rdf schema shacl validation

Classifiers

Report project as malware

Release files for neverblink-linkml 0.16.1

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for neverblink-linkml 0.16.1
File Size Uploaded
neverblink_linkml-0.16.1.tar.gz 62.2 MB Details

Built distributions (wheels)

Table of built distributions (wheels) for neverblink-linkml 0.16.1
File
neverblink_linkml-0.16.1-py3-none-win_arm64.whl 2.2 MB Python 3 none Windows ARM64 Details
neverblink_linkml-0.16.1-py3-none-win_amd64.whl 2.6 MB Python 3 none Windows x86-64 Details
neverblink_linkml-0.16.1-py3-none-musllinux_1_2_x86_64.whl 3.4 MB Python 3 none Linux musl 1.2+ x86-64 Details
neverblink_linkml-0.16.1-py3-none-musllinux_1_2_aarch64.whl 3.3 MB Python 3 none Linux musl 1.2+ ARM64 Details
neverblink_linkml-0.16.1-py3-none-manylinux_2_17_x86_64.whl 3.4 MB Python 3 none Linux glibc 2.17+ x86-64 Details
neverblink_linkml-0.16.1-py3-none-manylinux_2_17_aarch64.whl 3.2 MB Python 3 none Linux glibc 2.17+ ARM64 Details
neverblink_linkml-0.16.1-py3-none-macosx_14_0_x86_64.whl 2.7 MB Python 3 none macOS 14.0+ x86-64 Details
neverblink_linkml-0.16.1-py3-none-macosx_14_0_arm64.whl 2.6 MB Python 3 none macOS 14.0+ ARM64 Details

Total release size: 85.6 MB

Release history Release notifications | RSS feed

0.16.2

9 release files

This release

0.16.1 This release

9 release files

0.16.0

9 release files

0.15.1

6 release files

0.15.0

6 release files

0.14.0

6 release files

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