Update Dask dependencies after new max pin

Author: sadielbartholomew

Changelog.rst

@@ -22,7 +22,7 @@ version 3.17.0
 * Changed dependency: ``Python>=3.9.0``
 * Changed dependency: ``numpy>=2.0.0``
 * Changed dependency: ``cfdm>=1.12.1.0, <1.12.2.0``
-* Changed dependency: ``dask>=2025.2.0``
+* Changed dependency: ``dask>=2025.2.0, <=2025.3.0``
 * Changed dependency: ``netCDF4>=1.7.2``
 * Changed dependency: ``cftime>=1.6.4``
 * Changed optional dependency: ``esmpy>=8.7.0``

cf/__init__.py

@@ -130,7 +130,7 @@
         raise RuntimeError(
             "Bad cfdm version: cf requires "
             f"{_minimum_vn}<=cfdm<{_maximum_vn}. "
-            f"Got {cfdm.__version__} at {cfdm.__file__}"
+            f"Got {_cfdm_version} at {cfdm.__file__}"
         )
 
 __cf_version__ = cfdm.__cf_version__
@@ -202,10 +202,15 @@
     raise ImportError(_error0 + str(error1))
 else:
     _minimum_vn = "2025.2.0"
-    if Version(dask.__version__) < Version(_minimum_vn):
-        raise ValueError(
-            f"Bad dask version: cf requires dask>={_minimum_vn}. "
-            f"Got {dask.__version__} at {dask.__file__}"
+    # Note in this case max is inclusive, change inequalities if this changes
+    _maximum_vn = "2025.3.0"
+    _dask_version = Version(dask.__version__)
+    if _dask_version < Version(_minimum_vn) or _dask_version > Version(
+        _maximum_vn
+    ):
+        raise RuntimeError(
+            "Bad dask version: cf requires "
+            f"{_minimum_vn}<=dask<={_maximum_vn}. Got {_dask_version}."
         )
 
 try:

docs/source/installation.rst

@@ -194,7 +194,8 @@ Required
 
 * `numpy <http://www.numpy.org>`_, versions 2.0.0 or newer.
 
-* `dask <https://pypi.org/project/dask>`_, versions 2025.2.0 or newer.
+* `dask <https://pypi.org/project/dask>`_, version 2025.2.0 or newer up to
+  2025.3.0 inclusive.
 
 * `netCDF4 <https://pypi.org/project/netcdf4/>`_, 1.7.2 or newer.
 

requirements.txt

@@ -4,6 +4,6 @@ numpy>=2.0.0
 cfdm>=1.12.1.0, <1.12.2.0
 psutil>=0.6.0
 cfunits>=3.3.7
-dask>=2025.2.0
+dask>=2025.2.0,<=2025.3.0
 packaging>=20.0
 scipy>=1.10.0