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 Aug 25, 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:
Latest release

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 Aug 25, 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

MIT
View SPDX License List

Requires

Python >=3.11

Provides Extra

zarr torch jax tensorflow cupy streaming omero 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-0.2.3.tar.gz (156.2 kB view details)

Uploaded Source

Built Distribution

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

polystore-0.2.3-py3-none-any.whl (135.9 kB view details)

Uploaded Python 3

File details

Details for the file polystore-0.2.3.tar.gz.

File metadata

  • Download URL: polystore-0.2.3.tar.gz
  • Upload date:
  • Size: 156.2 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? Yes
  • Uploaded via: twine/7.0.0 CPython/3.13.14

File hashes

Hashes for polystore-0.2.3.tar.gz
Algorithm Hash digest
SHA256 4089ee3571c40aff3da2b404a85c8135b5bdffda2b9b002cb125f10aa7eec895
MD5 02352ef25d578dabbc08cc2075f47d27
BLAKE2b-256 e4132f4c5e3c3423f23a8458de5d3d07559443fc6cdde5386b9f6fa54ee380d9

See more details on using hashes here.

Provenance

The following attestation bundles were made for polystore-0.2.3.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-0.2.3-py3-none-any.whl.

File metadata

  • Download URL: polystore-0.2.3-py3-none-any.whl
  • Upload date:
  • Size: 135.9 kB
  • Tags: Python 3
  • Uploaded using Trusted Publishing? Yes
  • Uploaded via: twine/7.0.0 CPython/3.13.14

File hashes

Hashes for polystore-0.2.3-py3-none-any.whl
Algorithm Hash digest
SHA256 a43a71eb86dc0613ef74030b4d63674e8e79e59dd09a9107c10681536f1bcc21
MD5 13ef5d018d63e887e0525548b0f046af
BLAKE2b-256 7b032f3206b090988241d6f802cc83a827a139598e8b28d92e6ddfdcfbba8700

See more details on using hashes here.

Provenance

The following attestation bundles were made for polystore-0.2.3-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.

Release history Release notifications | RSS feed

This release

0.2.3 This release

2 files

0.2.2

2 files

0.2.1

2 files

0.2.0

2 files

0.1.35

2 files

0.1.34

2 files

0.1.33

2 files

0.1.32

2 files

0.1.31

2 files

0.1.30

2 files

0.1.29

2 files

0.1.28

2 files

0.1.27

2 files

0.1.26

2 files

0.1.25

2 files

0.1.24

2 files

0.1.23

2 files

0.1.22

2 files

0.1.21

2 files

0.1.20

2 files

0.1.19

2 files

0.1.18

2 files

0.1.17

2 files

0.1.16

2 files

0.1.15

2 files

0.1.14

2 files

0.1.13

2 files

0.1.12

2 files

0.1.11

2 files

0.1.10

2 files

0.1.9

2 files

0.1.8

2 files

0.1.7

2 files

0.1.6

2 files

0.1.2

2 files

0.1.0

2 files

Supported by

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