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Default zarr.open to open_group if shape is not provided #2158

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merged 11 commits into from
Sep 27, 2024

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agoodm
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@agoodm agoodm commented Sep 8, 2024

[Description of PR] Closes #2143

This change makes the v3 zarr.open more consistent with v2 by defaulting to open_group if shape isn't provided, which now allows for initializing a group in a non-existent path if mode="a".

TODO:

  • Add unit tests and/or doctests in docstrings
  • Add docstrings and API docs for any new/modified user-facing classes and functions
  • New/modified features documented in docs/tutorial.rst
  • Changes documented in docs/release.rst
  • GitHub Actions have all passed
  • Test coverage is 100% (Codecov passes)

@agoodm agoodm requested a review from jhamman September 12, 2024 18:03
@jhamman jhamman added the V3 label Sep 13, 2024
jni pushed a commit to napari/napari that referenced this pull request Sep 16, 2024
# References and relevant issues
closes #7270

# Description
as zarr-developers/zarr-python#2143 is not
resolved yet we need to block next alpha release. But there is
zarr-developers/zarr-python#2158 opened, so it
should be resolved shortly.
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This looks good @agoodm -- thanks for working out the logic in a clean way.

@jhamman jhamman merged commit 1560d21 into zarr-developers:v3 Sep 27, 2024
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dcherian added a commit to dcherian/zarr-python that referenced this pull request Sep 27, 2024
* v3: (21 commits)
  Default zarr.open to open_group if shape is not provided (zarr-developers#2158)
  feat: metadata-only support for storage transformers metadata (zarr-developers#2180)
  fix(async): set default concurrency to 10 tasks (zarr-developers#2256)
  chore(deps): drop support for python 3.10 and numpy 1.24 (zarr-developers#2217)
  feature(store): add LoggingStore wrapper (zarr-developers#2231)
  Apply assorted ruff/flake8-simplify rules (SIM) (zarr-developers#2259)
  Add array storage helpers (zarr-developers#2065)
  Apply ruff/flake8-annotations rule ANN204 (zarr-developers#2258)
  No need to run DeepSource any more - we use ruff (zarr-developers#2261)
  Remove unnecessary lambda expression (zarr-developers#2260)
  Enforce ruff/flake8-comprehensions rules (C4) (zarr-developers#2239)
  Use `map(str, *)` in `test_accessed_chunks` (zarr-developers#2229)
  Replace Gitter with Zulip (zarr-developers#2254)
  Enforce ruff/flake8-pytest-style rules (PT) (zarr-developers#2236)
  Fix multiple identical imports (zarr-developers#2241)
  Enforce ruff/flake8-return rules (RET) (zarr-developers#2237)
  Enforce ruff/flynt rules (FLY) (zarr-developers#2240)
  Fix fill_value handling for complex dtypes (zarr-developers#2200)
  Update V2 codec pipeline to use concrete classes (zarr-developers#2244)
  Apply and enforce more ruff rules (zarr-developers#2053)
  ...
@jhamman jhamman added this to the 3.0.0.beta milestone Oct 17, 2024
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zarr.open do not allow creating group file [v3]
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