zarr-python

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Group.create in V2 vs V3

2

In V2, the way you create an array with a Group is ```python import zarr root = zarr.open_group('data/example.zarr', mode='w') array = root.create("foo", shape=10) ``` https://zarr.readthedocs.io/en/stable/api/hierarchy.html#zarr.hierarchy.Group.create V3 Groups also have a...

rabernat

One thing about zarr v2 -> v3 that might surprise users is the change from the v2 `compressor` metadata (a single thing) + `filters` (an ordered collection) to the v3...

d-v-b

Regression in 2.18.x with size-1 slicing not resolved

1

### Zarr version v2.17.0, 2.18.x ### Numcodecs version v0.12.1 ### Python Version 3.10.0 ### Operating System Linux/Mac ### Installation Using `pip3` in a venv ### Description There appears to be...

i-jey

Include `v3` in Dask's nightly CI when ready

3

Over in Dask's nightly CI build that tests against nightly versions of Dask dependencies, we started seeing Zarr-related test failures like ``` FAILED dask/array/tests/test_array_core.py::test_from_zarr_unique_name - TypeError: 'module' object is not...

jrbourbeau

the metadata classes need tests!

d-v-b

Add Pyodide support and CI jobs for Zarr

12

## Description This description is a stub and will be updated in due course. TODO: * [ ] Add unit tests and/or doctests in docstrings * [ ] Add docstrings...

agriyakhetarpal

Feedback on v3 Array setitems behavior with single items

2

I have been playing with the v3 branch and noticed some weird behavior with setting values. ```python import zarr arr = zarr.Array.create(store=zarr.store.MemoryStore(), shape=(10,), chunks=(5,), dtype="i4") # this errors with v3...

rabernat

V3 array creation dtype parameter

1

In V2, an array can be created with no `dtype`. The default dtype is f8: https://zarr.readthedocs.io/en/stable/api/creation.html#zarr.creation.create In V3, dtype is mandatory. ```python import zarr arr = zarr.Array.create(store=zarr.store.MemoryStore(), shape=(10,), chunks=(5,)) #...

rabernat

remove v2 codebase

1

Removes all the v2 code supersedes #1897, #1791 TODO: * [ ] Add unit tests and/or doctests in docstrings * [ ] Add docstrings and API docs for any new/modified...

d-v-b

Tracking 3.0 Release Blockers

1

We are now in the last mile of the 3.0 refactor. This issue is tracking what we are considering release blockers: There is also a milestone for [After 3.0.0](https://github.com/zarr-developers/zarr-python/milestone/17) where...

jhamman