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Speed up netCDF4, h5netcdf backends #9067

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merged 2 commits into from
Jun 4, 2024
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Speed up netCDF4, h5netcdf backends #9067

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590a264
Speed up netCDF4 backend.
dcherian Jun 4, 2024
3e28bac
Update h5netcdf backend too
dcherian Jun 4, 2024
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6 changes: 6 additions & 0 deletions doc/whats-new.rst
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Expand Up @@ -23,6 +23,12 @@ v2024.05.1 (unreleased)
New Features
~~~~~~~~~~~~

Performance
~~~~~~~~~~~

- Small optimization to the netCDF4 backend (:issue:`9058`).
By `Deepak Cherian <https://github.com/dcherian>`_.


Breaking changes
~~~~~~~~~~~~~~~~
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2 changes: 1 addition & 1 deletion xarray/backends/netCDF4_.py
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Expand Up @@ -454,7 +454,7 @@ def open_store_variable(self, name: str, var):
pop_to(attributes, encoding, "least_significant_digit")
# save source so __repr__ can detect if it's local or not
encoding["source"] = self._filename
encoding["original_shape"] = var.shape
encoding["original_shape"] = data.shape

return Variable(dimensions, data, attributes, encoding)

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