asdf-standard
The ASDF Standard schemas
What it is and what it does
asdf-standard is a Python package that distributes the specification and core schemas for the Advanced Scientific Data Format (ASDF), a structured format designed for scientific data interchange and storage. It serves as the authoritative schema repository for the ASDF ecosystem, defining the data structures and validation rules that ASDF-compatible tools use to read and write scientific datasets.
The package itself contains no runtime dependencies and is primarily consumed by other packages that implement ASDF support. It is actively maintained, with recent commits and stable production status, making it suitable for projects that need to reference or validate against the official ASDF specification.
Use it for:
- Validate scientific data files against official ASDF schemas in astronomy and space science workflows.
- Integrate ASDF schema definitions into custom data processing pipelines for scientific computing.
- Reference the canonical ASDF specification when building tools or libraries that read or write ASDF files.
- Ensure compliance with the ASDF standard in multi-team scientific collaborations.
Worth the install?
AI-flagged interpretation of the facts on this page — verify before relying
Provides the ASDF (Advanced Scientific Data Format) specification and core schemas for structured scientific data storage and interchange.
Yes, if you are building or using tools that work with ASDF data. Install it as a dependency for ASDF-compatible libraries or when you need to validate against official schemas. The low install friction and zero runtime dependencies make it safe to add. Verify the license terms first, as they are not clearly specified in the package metadata.
Install
asdf-standard on PyPI
pip
pip install asdf-standarduv
uv add asdf-standardpoetry
poetry add asdf-standardInstalling asdf-standard
Before you install
Low install friction with no runtime dependencies. Actively maintained with recent commits and stable production status.
License in practice
License treatment is unclear; the fact sheet does not specify a license. Verify licensing terms before use in proprietary or restricted contexts.
Quickstart
pip install asdf-standard
import asdf
# Use asdf-standard schemas via asdf library integration
Requires Python 3.10 or later.
Verify before relying
- Whether asdf-standard is meant to be imported directly or only used as a dependency by other packages like asdf.
- What specific license applies (license_treatment is marked unclear in the fact sheet).
- Whether this package provides runtime utilities or is purely a schema/specification reference.
Package facts
| License | not declared (unclear) |
| Python support | supports the current Python release (>=3.10) |
| Install friction | low — pure-Python wheel |
| Runtime dependencies | none |
| Maintenance | actively maintained — 190 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 301,389/month — #7,838 on PyPI (30-day window, as of 2026-08-14) |
| Known vulnerabilities | none known (OSV.dev, checked 2026-08-14) |
Evidence: asdf_standard-1.5.0-py3-none-any.whl
Tags
More Scientific/Engineering packages
NumPy provides an N-dimensional array object…
permissive · top 100 on PyPI
pandaspandas provides fast, flexible data structures…
permissive · top 100 on PyPI
scipyscipy provides numerical algorithms for…
permissive · top 100 on PyPI
scikit-learnscikit-learn provides a comprehensive Python…
permissive · top 1,000 on PyPI
dilldill extends Python's pickle module to…
permissive · top 1,000 on PyPI
multiprocessMultiprocess is an enhanced fork of Python's…
permissive · top 1,000 on PyPI
asdfASDF is a Python implementation of the Advanced…
unclear · top 15,000 on PyPI
asdf-coordinates-schemasProvides ASDF schemas for validating coordinate…
unclear · top 15,000 on PyPI
asdf-transform-schemasProvides ASDF schemas for validating transform…
unclear · top 15,000 on PyPI
asdf-wcs-schemasProvides ASDF schemas for validating World…
unclear · top 15,000 on PyPI
asdf-astropyProvides ASDF serialization plugins for astropy…
unclear · top 15,000 on PyPI
lsst-daf-butlerProvides an abstraction layer for reading and…
unclear · top 15,000 on PyPI
openapi-schema-pydanticProvides Pydantic classes that map to the…
permissive · top 5,000 on PyPI
pystac-ext-pointcloudExtends PySTAC to support the Point Cloud…
permissive · top 5,000 on PyPI
xarrayxarray adds dimension, coordinate, and…
permissive · top 5,000 on PyPI