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 24, 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 (0.2.3)

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 24, 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-0.1.35.tar.gz (154.5 kB view details)

Uploaded Source

Built Distribution

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

polystore-0.1.35-py3-none-any.whl (135.2 kB view details)

Uploaded Python 3

File details

Details for the file polystore-0.1.35.tar.gz.

File metadata

  • Download URL: polystore-0.1.35.tar.gz
  • Upload date:
  • Size: 154.5 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? Yes
  • Uploaded via: twine/7.0.0 CPython/3.13.14

File hashes

Hashes for polystore-0.1.35.tar.gz
Algorithm Hash digest
SHA256 7b8115775f3fec8633244874250cf61fd6bc24e10b6d1c2d34bf842347c17ec1
MD5 b743666888f4fc008bcaf05130cb3113
BLAKE2b-256 9cde86cb986e8127247100975047d436fc9d26f3e7f85e2ad008b8e0d1513a11

See more details on using hashes here.

Provenance

The following attestation bundles were made for polystore-0.1.35.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-0.1.35-py3-none-any.whl.

File metadata

  • Download URL: polystore-0.1.35-py3-none-any.whl
  • Upload date:
  • Size: 135.2 kB
  • Tags: Python 3
  • Uploaded using Trusted Publishing? Yes
  • Uploaded via: twine/7.0.0 CPython/3.13.14

File hashes

Hashes for polystore-0.1.35-py3-none-any.whl
Algorithm Hash digest
SHA256 16e80191d7620d287a37d6265cac403562072aa1e1fa6830efe261723f6522e6
MD5 39197ac81dd3ead92471d7fcbb6ca316
BLAKE2b-256 dfdbc31ebfa446a1c7f38cec982803a4648a0f6b82d5b33c0ac80b755efb1619

See more details on using hashes here.

Provenance

The following attestation bundles were made for polystore-0.1.35-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

0.2.3

2 files

0.2.2

2 files

0.2.1

2 files

0.2.0

2 files

This release

0.1.35 This release

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