Zarr >= 3

Author: dcherian

doc/whats-new.rst

@@ -60,6 +60,7 @@ Breaking Changes
     rasterio                1.3      1.4
     scipy                   1.13     1.15
     toolz                  0.12      1.0
+    zarr                   2.18      3.0
   ===================== =========  =======
 
 - Change the default value for ``chunk`` in ``open_zarr`` to ``_default`` and remove special mapping of ``"auto"``

pixi.toml

@@ -138,8 +138,8 @@ pydap = "3.5.*"
 rasterio = "1.4.*"
 seaborn = "0.13.*"
 sparse = "0.15.*"
-zarr = "2.18.*"
 toolz = "1.0.*"
+zarr = "3.0.*"
 
 # TODO: Remove `target.unix` restriction once pandas nightly has win-64 wheels again.
 # Without this, `pixi lock` fails because it can't solve the nightly feature for win-64,

xarray/tests/__init__.py

@@ -114,10 +114,9 @@ def _importorskip(
 has_bottleneck, requires_bottleneck = _importorskip("bottleneck")
 has_rasterio, requires_rasterio = _importorskip("rasterio")
 has_zarr, requires_zarr = _importorskip("zarr")
-has_zarr_v3, requires_zarr_v3 = _importorskip("zarr", "3.0.0")
 has_zarr_v3_dtypes, requires_zarr_v3_dtypes = _importorskip("zarr", "3.1.0")
 has_zarr_v3_async_oindex, requires_zarr_v3_async_oindex = _importorskip("zarr", "3.1.2")
-if has_zarr_v3:
+if has_zarr:
     import zarr
 
     # manual update by checking attrs for now
@@ -178,14 +177,7 @@ def _importorskip(
     "zarr_format",
     [
         pytest.param(2, id="zarr_format=2"),
-        pytest.param(
-            3,
-            marks=pytest.mark.skipif(
-                not has_zarr_v3,
-                reason="zarr-python v2 cannot understand the zarr v3 format",
-            ),
-            id="zarr_format=3",
-        ),
+        pytest.param(3, id="zarr_format=3"),
     ],
 )