AttributeError: module 'zarr.storage' has no attribute 'DirectoryStore'

[KumoLiu]

Zarr version

3.0.0

Numcodecs version

0.14.1

Python Version

3.9, 3.10, 3.11

Operating System

linux

Installation

pip install

Description

zarr-python/zarr/storage.py

Line 1003 in 2ab280a

class DirectoryStore(Store):

Steps to reproduce

>>> import zarr
>>> from zarr.storage import DirectoryStore

Additional output

No response

[joshmoore]

Hi @KumoLiu. The class you are looking for in Zarr v3 is the LocalStore:

https://zarr.readthedocs.io/en/stable/api/zarr/storage/index.html#zarr.storage.LocalStore

In case you have not seen it, please also be sure to read through the migration guide at https://zarr.readthedocs.io/en/stable/user-guide/v3_migration.html for other breaking changes.

[dstansby]

To be fair, the Store part of the migration guide doesn't mention DirectoryStore at all, so I think we should definitely add a section explaining how to migrate from DirectoryStore to LocalStore.

[KumoLiu]

Hi @joshmoore and @dstansby, may I ask what zarr.storage.TempStore() and zarr.codec_registry has been replaced by? i didn't found in the migration guide. Thanks!