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Support overriding existing variables in to_zarr() without appending #4029

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merged 2 commits into from
May 5, 2020

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shoyer
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@shoyer shoyer commented May 5, 2020

This is nice for consistency with to_netcdf. It should be useful for cases where users want to update values in existing Zarr datasets.

  • Tests added
  • Passes isort -rc . && black . && mypy . && flake8
  • Fully documented, including whats-new.rst for all changes and api.rst for new API

This should be useful for cases where users want to update values in existing
Zarr datasets.
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rabernat commented May 5, 2020

This is great Stephan. Perhaps you could also update the to_zarr docstring to make it more consistent with to_netcdf and explicitly describe this behavior. For to_netcdf, we say

If mode=’a’, existing variables will be overwritten.

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shoyer commented May 5, 2020

Thanks for the reviews!

The doc build failure is something else (see #4030), so I'm going to submit.

@shoyer shoyer merged commit 1c5adc9 into pydata:master May 5, 2020
dcherian added a commit to kmuehlbauer/xarray that referenced this pull request May 9, 2020
…k-issues

* upstream/master: (22 commits)
  support darkmode (pydata#4036)
  Use literal syntax instead of function calls to create the data structure (pydata#4038)
  Add template xarray object kwarg to map_blocks (pydata#3816)
  Transpose coords by default (pydata#3824)
  Remove broken test for Panel with to_pandas() (pydata#4028)
  Allow warning with cartopy in docs plotting build (pydata#4032)
  Support overriding existing variables in to_zarr() without appending (pydata#4029)
  chore: Remove unnecessary comprehension (pydata#4026)
  fix to_netcdf docstring typo (pydata#4021)
  Pint support for DataArray (pydata#3643)
  Apply blackdoc to the documentation (pydata#4012)
  ensure Variable._repr_html_ works (pydata#3973)
  Fix handling of abbreviated units like msec (pydata#3998)
  full_like: error on non-scalar fill_value (pydata#3979)
  Fix some code quality and bug-risk issues (pydata#3999)
  DOC: add pandas.DataFrame.to_xarray (pydata#3994)
  Better chunking error messages for zarr backend (pydata#3983)
  Silence sphinx warnings (pydata#3990)
  Fix distributed tests on upstream-dev (pydata#3989)
  Add multi-dimensional extrapolation example and mention different behavior of kwargs in interp (pydata#3956)
  ...
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3 participants