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Added driver parameter for h5netcdf #8360

Merged
merged 11 commits into from
Nov 15, 2023
Merged

Added driver parameter for h5netcdf #8360

merged 11 commits into from
Nov 15, 2023

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zequihg50
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Following this change in h5netcdf, allow xarray to open HDF5 files using the ros3 VFD from HDF5.

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welcome bot commented Oct 23, 2023

Thank you for opening this pull request! It may take us a few days to respond here, so thank you for being patient.
If you have questions, some answers may be found in our contributing guidelines.

@dcherian
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Thanks @zequihg50 . Is there a test file we can use or create to test with?

@kmuehlbauer
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@zequihg50 This is looking good to me.

I've almost no experience with cloud access data, so please bear with me. It would be great if there is a permanent endpoint somewhere, or if it could be emulated within CI. Not only here, but also over at h5netcdf. Thanks!

@kmuehlbauer
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The only thing we might have to think about is, that this will only take effect with the next h5netcdf release. For all other versions this will silently not take driver into account and use the current h5pyd approach.

@zequihg50
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Now that the pull request for h5netcdf is merged, is there anything missing here? For testing I have suggested to use a file from netCDF examples.

@kmuehlbauer
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Now that the pull request for h5netcdf is merged, is there anything missing here? For testing I have suggested to use a file from netCDF examples.

Yes, a test would be nice indeed. Also, as mentioned over in #8423, it would be nice to distribute additional kwargs to the backend.

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@zequihg50 I've added a couple of suggestions. Please let me know, if you can add the needed changes and a test.

Please also add an entry to whats-new.rst.

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@zequihg50 I've added some code suggestion how to avoid some issues with CachingFileManager.

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zequihg50 and others added 6 commits November 13, 2023 09:40
Co-authored-by: Kai Mühlbauer <kmuehlbauer@wradlib.org>
Co-authored-by: Kai Mühlbauer <kmuehlbauer@wradlib.org>
Co-authored-by: Kai Mühlbauer <kmuehlbauer@wradlib.org>
Co-authored-by: Kai Mühlbauer <kmuehlbauer@wradlib.org>
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@zequihg50 Thanks for adding the test. The test will only work for h5netcdf >= 1.3.0, though.

@dcherian Do we have to check for h5netcdf-version here? Or does it make sense to just let the test run if h5netcdf >= 1.3.0 is installed?

@dcherian
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Or does it make sense to just let the test run if h5netcdf >= 1.3.0 is installed?

👍 @zequihg50 we use this type of decorator to run a test only if the version is greater than a min version:

# _importorskip does not work for development versions
has_pandas_version_two = Version(pd.__version__).major >= 2
requires_pandas_version_two = pytest.mark.skipif(
not has_pandas_version_two, reason="requires pandas 2.0.0"
)

@kmuehlbauer
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LGTM! @zequihg50 Please merge xarray latest main into this PR branch and add an entry to https://github.com/pydata/xarray/blob/main/doc/whats-new.rst to make this enhancement visible.

@dcherian
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Thanks @zequihg50 and @kmuehlbauer

@dcherian dcherian merged commit 1411474 into pydata:main Nov 15, 2023
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Congratulations on completing your first pull request! Welcome to Xarray! We are proud of you, and hope to see you again! celebration gif

@kmuehlbauer
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Thanks @zequihg50 for pushing this through!

dcherian added a commit to rabernat/xarray that referenced this pull request Nov 29, 2023
* main:
  [skip-ci] dev whats-new (pydata#8467)
  2023.11.0 Whats-new (pydata#8461)
  migrate the other CI to python 3.11 (pydata#8416)
  preserve vlen string dtypes, allow vlen string fill_values (pydata#7869)
  Pin mypy < 1.7 (pydata#8458)
  Fix typos found by codespell (pydata#8457)
  [skip-ci] Small updates to IO docs. (pydata#8452)
  Deprecate certain cftime frequency strings following pandas (pydata#8415)
  Added driver parameter for h5netcdf (pydata#8360)
  Raise exception in to_dataset if resulting variable is also the name of a coordinate (pydata#8433)
  Automatic region detection and transpose for `to_zarr()` (pydata#8434)
  remove `cdms2` (pydata#8441)
  Remove PseudoNetCDF (pydata#8446)
  Pin pint to >=0.22 (pydata#8445)
  Remove keep_attrs from resample signature (pydata#8444)
  Rename `to_array` to `to_dataarray` (pydata#8438)
  Add missing DataArray.dt.total_seconds() method (pydata#8435)
  Declare Dataset, DataArray, Variable, GroupBy unhashable (pydata#8392)
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3 participants