zarr-python

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`BaseFloat._check_scalar` does not properly check string values

1

### Zarr version commit edd47db7959fb8a355bd7560878fdafc11277fc2 ### Numcodecs version - ### Python Version 3.13.3 ### Operating System Linux ### Installation uv dev ### Description ```python uv run python Python 3.13.3 (main,...

sehoffmann

Can not create Metadata for structured dtype containing subarray dtype

4

### Zarr version v3.1.3 ### Numcodecs version - ### Python Version 3.12 ### Operating System Linux ### Installation uv ### Description Output: ``` Traceback (most recent call last): File "bug.py",...

sehoffmann

Subarray dtypes get lost on serialization / casted to void type

1

### Zarr version v3.1.3 ### Numcodecs version v0.15.1 ### Python Version 3.12.10 ### Operating System Linux ### Installation uv / pip ### Description Subarray dtypes are not properly serialized but...

sehoffmann

[v3] support for ragged arrays

5

Zarr-Python 2 [supported ragged arrays](https://zarr.readthedocs.io/en/v2.18.4/tutorial.html#ragged-arrays). This functionality has not made it into Zarr-Python 3 yet (see also #2617). An example demonstrating this functionality using Zarr-Python 2: ```python z = zarr.empty(4,...

jhamman

Are custom stores supported?

5

I have been working on creating a custom store despite there being no documentation. Upgrading from 3.0.x to 3.1.x now broke my store, not nice, but let's be fair I...

Ozaq

Resizing an array in a ZipFileStore will lead to many duplicate entries for zarr.json in the ZipFile.

13

### Zarr version 3.1.3 ### Numcodecs version 0.16.3 ### Python Version 3.14.0 ### Operating System Linux ### Installation Pip inside a conda environment ### Description The behavior I observe is:...

gfhcs

Zarr over ssh fails with `unexpected keyword argument`

2

### Zarr version 3.1.3 ### Numcodecs version 0.15.1 ### Python Version 3.12.9 ### Operating System Linux ### Installation uv pip install ### Description Calling `zarr.open` with an `ssh://...` url fails...

b8raoult

Zarr over https returns an empty string in `keys()`

6

### Zarr version 3.1.3 ### Numcodecs version 0.15.1 ### Python Version 3.12.9 ### Operating System Mac ### Installation uv pip install zarr ### Description The following code: ```python import zarr,...

b8raoult

New experimental cache does not seem to cache negative results

2

I'm trying out the new experimental CacheStore and am wondering if it supports caching negative results? We are trying to use it against sparse arrays written with `write_empty_chunks: False`. From...

jrudolph

Add properties to get chunk and shard slices

1

Fixes https://github.com/zarr-developers/zarr-python/issues/2454.

dstansby