Change default write mode of `to_zarr()` to `'w-'`

xarray-contrib / datatree

WIP implementation of a tree-like hierarchical data structure for xarray.

https://xarray-datatree.readthedocs.io

Apache License 2.0

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Change default write mode of `to_zarr()` to `'w-'` #275

Closed slevang closed 7 months ago

slevang commented 7 months ago

[x] Closes #274
[x] Passes pre-commit run --all-files
[x] Changes are summarized in docs/source/whats-new.rst
[x] Regression test added

jhamman commented 7 months ago

This looks good! Can we add a regression test for this? The Datatree's Zarr backend is in need of a refresh and it would be a shame to reintroduce this issue when that happens.

TomNicholas commented 7 months ago

Thank you for the fix @slevang !