PolyStore

Framework-agnostic storage primitives for scientific applications.

PyPI version Documentation Status Python 3.11+

PolyStore owns backend interfaces, execution-local backend registries, FileManager routing, storage formats, ROI values, virtual-workspace source references, and viewer-streaming payload mechanics. Applications retain ownership of domain artifact names and materialization policy.

Quick start

Pass an explicit mapping of backend names to instances. FileManager has no global fallback and does not infer a backend from a path.

from pathlib import Path
import numpy as np

from polystore import DiskBackend, FileManager, MemoryBackend

registry = {
    "disk": DiskBackend(),
    "memory": MemoryBackend(),
}
files = FileManager(registry)

data = np.arange(6).reshape(2, 3)
files.save(data, Path("output.npy"), backend="disk")
loaded = files.load(Path("output.npy"), backend="disk")

For application startup where every discoverable context-free backend is wanted, use the package-owned lazy registry:

from polystore import FileManager, ensure_storage_registry, storage_registry

ensure_storage_registry()
files = FileManager(dict(storage_registry))

Backends requiring context-specific construction, including virtual workspaces and OMERO, must be instantiated by the application and added to its registry.

Nominal backend extension

Concrete backends inherit DataSource, DataSink, StorageBackend, or ReadOnlyBackend and declare their backend key. The authoritative class catalog is BackendBase.__registry__ (also exported as STORAGE_BACKENDS). Do not build a second backend class table.

Installation

python -m pip install polystore

The core install includes NumPy, ArrayBridge, metaclass-registry, file locking, image I/O, and Zarr/OME-Zarr support. Framework and streaming extras add their corresponding optional runtimes.

Full documentation: polystore.readthedocs.io

Project links

Data verified by PyPI on Jul 22, 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 (0.1.30)

1 maintainer

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

Credits

Author: Tristan Simas

GitHub Statistics

Data verified by PyPI on Jul 22, 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

MIT License (MIT License)

Requires

Python >=3.11

Provides Extra

zarr torch jax tensorflow cupy streaming all dev docs gpu

Tags

storage backend multi-framework numpy pytorch jax tensorflow zarr io data

Classifiers

Report project as malware

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

polystore-0.1.14.tar.gz (137.3 kB view details)

Uploaded Source

Built Distribution

If you're not sure about the file name format, learn more about wheel file names.

polystore-0.1.14-py3-none-any.whl (129.2 kB view details)

Uploaded Python 3

File details

Details for the file polystore-0.1.14.tar.gz.

File metadata

  • Download URL: polystore-0.1.14.tar.gz
  • Upload date:
  • Size: 137.3 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? Yes
  • Uploaded via: twine/6.1.0 CPython/3.13.14

File hashes

Hashes for polystore-0.1.14.tar.gz
Algorithm Hash digest
SHA256 fb0c71c6e5d9fa663bcda76c63c55136c39077b3392b9a0b59e63fb494a37bb8
MD5 fb03687929b346aba52cc7a1016163af
BLAKE2b-256 71402716876e440a6c8d9236db0ed8b0b9aeea69d60ba1c67288b5fdb17efecf

See more details on using hashes here.

Provenance

The following attestation bundles were made for polystore-0.1.14.tar.gz:

Publisher: publish.yml on OpenHCSDev/PolyStore

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

File details

Details for the file polystore-0.1.14-py3-none-any.whl.

File metadata

  • Download URL: polystore-0.1.14-py3-none-any.whl
  • Upload date:
  • Size: 129.2 kB
  • Tags: Python 3
  • Uploaded using Trusted Publishing? Yes
  • Uploaded via: twine/6.1.0 CPython/3.13.14

File hashes

Hashes for polystore-0.1.14-py3-none-any.whl
Algorithm Hash digest
SHA256 5378e2b0418b43a92754654ee19e7270c47dd3c9597e3c23b8e721c3f943f1c9
MD5 0fb34ac804e772e51e33b7405c95bd67
BLAKE2b-256 ce8ba61b13e17e4a2c9c1ecd1121b98d5c44545d6a2e97971e0c8a2e6e1ad279

See more details on using hashes here.

Provenance

The following attestation bundles were made for polystore-0.1.14-py3-none-any.whl:

Publisher: publish.yml on OpenHCSDev/PolyStore

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Supported by

AWS Cloud computing and Security Sponsor Datadog Monitoring Depot Continuous Integration Fastly CDN Google Download Analytics Sentry Error logging StatusPage Status page