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Compatibility with NetCDF4 v1.7.3 #6827

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9 changes: 7 additions & 2 deletions docs/src/whatsnew/3.14.rst
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Expand Up @@ -60,6 +60,8 @@ v3.14.1 (Date TBD)
#. Fixed compatibility with NumPy v2 for :meth:`~iris.coords.Coord.guess_bounds`
:ref:`See the full entry for more<3_14_1_guess_bounds>`.

#. Removed netCDF4<1.7.3 temporary pin.

✨ Features
===========

Expand Down Expand Up @@ -174,10 +176,13 @@ v3.14.1 (Date TBD)
handles additional shapefile types and projections. (:issue:`6126`, :pull:`6129`)

#. `@pp-mo`_ added a temporary dependency pins for Python<3.14, dask<2025.10.0 and
netCDF4<1.7.3. All of these introduce problems that won't necessarily be fixed soon,
so we anticipate that these pins will be wanted for the v3.14 release.
netCDF4<1.7.3. Edit 2025-11-25: the netCDF4 pin has now been removed in
:pull:`6826`.
(:issue:`6775`, :issue:`6776`, :issue:`6777`, :pull:`6773`)

#. `@trexfeathers`_ fixed an incompatibility with the netCDF4 package (relating
to dataset iterability). (:issue:`6777`, :pull:`6826`)


📚 Documentation
================
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4 changes: 3 additions & 1 deletion lib/iris/loading.py
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Expand Up @@ -66,10 +66,12 @@ def context(self, load_real=True):


def _generate_cubes(uris, callback, constraints):
from netCDF4 import Dataset

import iris.io

"""Return a generator of cubes given the URIs and a callback."""
if isinstance(uris, str) or not isinstance(uris, Iterable):
if isinstance(uris, (str, Dataset)) or not isinstance(uris, Iterable):
# Make a string, or other single item, into an iterable.
uris = [uris]

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2 changes: 1 addition & 1 deletion requirements/py311.yml
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Expand Up @@ -17,7 +17,7 @@ dependencies:
- dask-core >=2025.1.0,<2025.10.0 # https://github.com/SciTools/iris/issues/6776
- libnetcdf !=4.9.1
- matplotlib-base >=3.5, !=3.9.1
- netcdf4<1.7.3 # https://github.com/SciTools/iris/issues/6777
- netcdf4
- numpy >=1.24, !=1.24.3
- python-xxhash
- pyproj
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2 changes: 1 addition & 1 deletion requirements/py312.yml
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Expand Up @@ -17,7 +17,7 @@ dependencies:
- dask-core >=2025.1.0,<2025.10.0 # https://github.com/SciTools/iris/issues/6776
- libnetcdf !=4.9.1
- matplotlib-base >=3.5, !=3.9.1
- netcdf4<1.7.3 # https://github.com/SciTools/iris/issues/6777
- netcdf4
- numpy >=1.24, !=1.24.3
- python-xxhash
- pyproj
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2 changes: 1 addition & 1 deletion requirements/py313.yml
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Expand Up @@ -17,7 +17,7 @@ dependencies:
- dask-core >=2025.1.0,<2025.10.0 # https://github.com/SciTools/iris/issues/6776
- libnetcdf !=4.9.1
- matplotlib-base >=3.5, !=3.9.1
- netcdf4<1.7.3 # https://github.com/SciTools/iris/issues/6777
- netcdf4
- numpy >=1.24, !=1.24.3
- python-xxhash
- pyproj
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2 changes: 1 addition & 1 deletion requirements/pypi-core.txt
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Expand Up @@ -4,7 +4,7 @@ cftime>=1.5.0
dask[array]>=2025.1.0,<2025.10.0 # https://github.com/SciTools/iris/issues/6776
# libnetcdf!=4.9.1 (not available on PyPI)
matplotlib>=3.5
netcdf4<1.7.3 # https://github.com/SciTools/iris/issues/6777
netcdf4
numpy>=1.24,!=1.24.3
pyproj
scipy
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