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Fix compatibility pre-0.1 spatialdata store #1012

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Merged
LucaMarconato merged 2 commits into from
Nov 3, 2025
Merged

Fix compatibility pre-0.1 spatialdata store #1012

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05c3e49
fix compatibility pre-0.1 spatialdata store
LucaMarconato Nov 3, 2025
59a688e
fix pre-commit
LucaMarconato Nov 3, 2025
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6 changes: 5 additions & 1 deletion src/spatialdata/_io/io_zarr.py
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Original file line number Diff line number Diff line change
Expand Up @@ -155,7 +155,11 @@ def read_zarr(
resolved_store = _resolve_zarr_store(store)
root_group = zarr.open_group(resolved_store, mode="r")
# the following is the SpatialDataContainerFormat version
sdata_version = root_group.metadata.attributes["spatialdata_attrs"]["version"]
if "spatialdata_attrs" not in root_group.metadata.attributes:
# backward compatibility for pre-versioned SpatialData zarr stores
sdata_version = cast(Literal["0.1", "0.2"], "0.1")
else:
sdata_version = root_group.metadata.attributes["spatialdata_attrs"]["version"]
if sdata_version == "0.1":
warnings.warn(
"SpatialData is not stored in the most current format. If you want to use Zarr v3"
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