Merge branch 'main' into feat/experimental-server

Author: d-v-b

.pre-commit-config.yaml

@@ -11,7 +11,7 @@ default_language_version:
 
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.14.14
+    rev: v0.15.4
     hooks:
       - id: ruff-check
         args: ["--fix", "--show-fixes"]
@@ -47,7 +47,7 @@ repos:
           - hypothesis
           - s3fs
   - repo: https://github.com/scientific-python/cookie
-    rev: 2025.11.21
+    rev: 2026.03.02
     hooks:
       - id: sp-repo-review
   - repo: https://github.com/pre-commit/pygrep-hooks

src/zarr/_cli/cli.py

@@ -1,5 +1,5 @@
 import logging
-from enum import Enum
+from enum import StrEnum
 from typing import Annotated, Literal, cast
 
 import typer
@@ -24,12 +24,12 @@ def _set_logging_level(*, verbose: bool) -> None:
     zarr.set_format("%(message)s")
 
 
-class CLIZarrFormat(str, Enum):
+class CLIZarrFormat(StrEnum):
     v2 = "v2"
     v3 = "v3"
 
 
-class CLIZarrFormatV3(str, Enum):
+class CLIZarrFormatV3(StrEnum):
     """Limit CLI choice to only v3"""
 
     v3 = "v3"

src/zarr/core/chunk_key_encodings.py

@@ -42,7 +42,7 @@ class ChunkKeyEncoding(ABC, Metadata):
     @classmethod
     def from_dict(cls, data: dict[str, JSON]) -> Self:
         _, config_parsed = parse_named_configuration(data, require_configuration=False)
-        return cls(**config_parsed if config_parsed else {})
+        return cls(**config_parsed or {})
 
     def to_dict(self) -> dict[str, JSON]:
         return {"name": self.name, "configuration": super().to_dict()}

src/zarr/core/dtype/__init__.py

@@ -81,7 +81,6 @@
     "TBaseDType",
     "TBaseScalar",
     "TimeDelta64",
-    "TimeDelta64",
     "TimeDelta64JSON_V2",
     "TimeDelta64JSON_V3",
     "UInt8",

src/zarr/core/indexing.py

@@ -209,7 +209,7 @@ def _iter_regions(
     # ((slice(0, 1, 1), slice(0, 2, 1)), (slice(1, 2, 1), slice(0, 2, 1)))
     ```
     """
-    grid_shape = tuple(ceildiv(d, s) for d, s in zip(domain_shape, region_shape, strict=True))
+    grid_shape = tuple(itertools.starmap(ceildiv, zip(domain_shape, region_shape, strict=True)))
     for grid_position in _iter_grid(
         grid_shape=grid_shape, origin=origin, selection_shape=selection_shape, order=order
     ):

src/zarr/dtype.py

@@ -72,7 +72,6 @@
     "StructuredJSON_V2",
     "StructuredJSON_V3",
     "TimeDelta64",
-    "TimeDelta64",
     "TimeDelta64JSON_V2",
     "TimeDelta64JSON_V3",
     "UInt8",
@@ -85,6 +84,5 @@
     "VariableLengthUTF8JSON_V2",
     "ZDType",
     "data_type_registry",
-    "data_type_registry",
     "parse_dtype",
 ]

tests/test_api.py

@@ -1529,6 +1529,7 @@ def test_auto_chunks(f: Callable[..., AnyArray]) -> None:
     array = np.zeros(shape, dtype=dtype)
     store = zarr.storage.MemoryStore()
 
+    # ruff: disable[FURB171]
     if f in [zarr.full, zarr.full_like]:
         kwargs["fill_value"] = 0
     if f in [zarr.array]:
@@ -1537,6 +1538,7 @@ def test_auto_chunks(f: Callable[..., AnyArray]) -> None:
         kwargs["a"] = array
     if f in [zarr.create_array]:
         kwargs["store"] = store
+    # ruff: enable[FURB171]
 
     a = f(**kwargs)
     assert a.chunks == (500, 500)

tests/test_array.py

@@ -6,7 +6,7 @@
 import pickle
 import re
 import sys
-from itertools import accumulate
+from itertools import accumulate, starmap
 from typing import TYPE_CHECKING, Any, Literal
 from unittest import mock
 
@@ -2064,12 +2064,12 @@ def test_chunk_grid_shape(
             zarr_format=zarr_format,
         )
 
-    chunk_grid_shape = tuple(ceildiv(a, b) for a, b in zip(array_shape, chunk_shape, strict=True))
+    chunk_grid_shape = tuple(starmap(ceildiv, zip(array_shape, chunk_shape, strict=True)))
     if shard_shape is None:
         _shard_shape = chunk_shape
     else:
         _shard_shape = shard_shape
-    shard_grid_shape = tuple(ceildiv(a, b) for a, b in zip(array_shape, _shard_shape, strict=True))
+    shard_grid_shape = tuple(starmap(ceildiv, zip(array_shape, _shard_shape, strict=True)))
     assert arr._chunk_grid_shape == chunk_grid_shape
     assert arr.cdata_shape == chunk_grid_shape
     assert arr.async_array.cdata_shape == chunk_grid_shape

tests/test_examples.py

@@ -50,7 +50,7 @@ def test_script_paths() -> None:
 
 
 @pytest.mark.skipif(
-    sys.platform in ("win32",), reason="This test fails due for unknown reasons on Windows in CI."
+    sys.platform == "win32", reason="This test fails for unknown reasons on Windows in CI."
 )
 @pytest.mark.parametrize("script_path", script_paths)
 def test_scripts_can_run(script_path: Path) -> None:

tests/test_properties.py

@@ -1,3 +1,4 @@
+import itertools
 import json
 import numbers
 from typing import Any
@@ -60,7 +61,7 @@ def deep_equal(a: Any, b: Any) -> bool:
     if isinstance(a, np.ndarray) and isinstance(b, np.ndarray):
         if a.shape != b.shape:
             return False
-        return all(deep_equal(x, y) for x, y in zip(a.flat, b.flat, strict=False))
+        return all(itertools.starmap(deep_equal, zip(a.flat, b.flat, strict=False)))
 
     if isinstance(a, dict) and isinstance(b, dict):
         if set(a.keys()) != set(b.keys()):
@@ -70,7 +71,7 @@ def deep_equal(a: Any, b: Any) -> bool:
     if isinstance(a, (list, tuple)) and isinstance(b, (list, tuple)):
         if len(a) != len(b):
             return False
-        return all(deep_equal(x, y) for x, y in zip(a, b, strict=False))
+        return all(itertools.starmap(deep_equal, zip(a, b, strict=False)))
 
     return a == b