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Based on external implementation at https://github.com/clbarnes/zarr-python-reshape .
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## main #4542 +/- ##
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+ Coverage 94.84% 94.87% +0.03%
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Files 96 97 +1
Lines 13997 14091 +94
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+ Hits 13275 13369 +94
Misses 722 722
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d-v-b
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Nov 2, 2026
| chunk_grid: ChunkGridMetadata, | ||
| ) -> None: | ||
| """Validate the codec configuration against the array metadata.""" | ||
| self._compute_output_shape(shape) |
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we have to validate against the chunk shape, not the array shape
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there's a bigger fix we need in this are that also affects sharding and transpose, see #4352. i'll try to get that merged
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Ah, I suppose that's not accessible here then - it's called against the array, not the chunk. No validation to be done here, then, as validating the shape spec is done on instantiation.
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Summary
Resolves #4541 .
Implements the reshape extension codec.
This codec was recommended for inclusion in mainline zarr-python because it will be built on top of by other codecs (e.g. most image codecs).
Author attestation
TODO
docs/user-guide/*.mdchanges/