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Error while loading NetCDF file #10850

@RRiva

Description

@RRiva

What happened?

Hi, I've just updated xarray to v2025.10.1. Unfortunately, now loading a NetCDF file using xr.load_dataset('file.nc') fails with

E   OSError: [Errno -101] NetCDF: HDF error: 'file.nc'

Thing is, this only fails on Linux, while on Windows it works correctly. For now I have reverted to v2025.09.1, but can you please look into that? I know that it's difficult without my file.

What did you expect to happen?

Be able to load a NetCDF file on both Linux and Windows.

Minimal Complete Verifiable Example

requires-python = ">=3.11,<3.14"

dependencies = [
    "xarray == 2025.10.1",
]
xr.load_dataset('file.nc')

Steps to reproduce

No response

MVCE confirmation

  • Minimal example — the example is as focused as reasonably possible to demonstrate the underlying issue in xarray.
  • Complete example — the example is self-contained, including all data and the text of any traceback.
  • Verifiable example — the example copy & pastes into an IPython prompt or Binder notebook, returning the result.
  • New issue — a search of GitHub Issues suggests this is not a duplicate.
  • Recent environment — the issue occurs with the latest version of xarray and its dependencies.

Relevant log output

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    bugneeds infoIssue reporter has not yet provided key informationneeds mcvehttps://matthewrocklin.com/blog/work/2018/02/28/minimal-bug-reports

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