sf3s, out - fsspec, in

Author: davidhassell

Changelog.rst

@@ -31,7 +31,9 @@ Version NEXTVERSION
   different ``formula_terms``
   (https://github.com/NCAS-CMS/cfdm/issues/380).
 * New dependency: ``pyfive>=1.1.1``
+* New dependency: ``fsspec>=2026.2.0``
 * Changed dependency: ``h5netcdf>=1.8.0``
+* Removed dependency: ``s3fs``
 
 ----
 
@@ -63,7 +65,7 @@ Version 1.13.0.0
 * Reduce the time taken to import `cfdm`
   (https://github.com/NCAS-CMS/cfdm/issues/361)
 * New optional dependency: ``zarr>=3.1.3``
-* Removed dependency (now optional): ``zarr>=3.0.8``
+* Removed dependency (now optional): ``zarr``
 
 ----
 

cfdm/docstring/docstring.py

@@ -398,7 +398,7 @@
             * **HTTP(S)**: Storage options are passed to
               `fsspec.filesystem`. If the file cannot be opened via
               this file system, then OpenDAP is attempted.
-              
+
               *Parameter example:*
                 ``{'cache_type': 'readahead', 'block_size': 1048576}``
 

cfdm/functions.py

@@ -448,7 +448,7 @@ def environment(display=True, paths=True):
         "h5py": _get_module_info("h5py", try_except=True),
         "pyfive": _get_module_info("pyfive", try_except=True),
         "zarr": _get_module_info("zarr", try_except=True),
-        "s3fs": _get_module_info("s3fs", try_except=True),
+        "fsspec": _get_module_info("fsspec", try_except=True),
         "scipy": _get_module_info("scipy", try_except=True),
         "dask": _get_module_info("dask"),
         "distributed": _get_module_info("distributed"),

docs/source/installation.rst

@@ -202,7 +202,7 @@ The cfdm package requires:
 
 * `pyive <https://pypi.org/project/pyfive>`_, version 1.1.1 or newer.
 
-* `s3fs <https://pypi.org/project/s3fs>`_, version 2024.6.0 or newer.
+* `fsspec <https://pypi.org/project/fsspec>`_, version 2026.2.0 or newer.
 
 * `dask <https://pypi.org/project/dask>`_, version 2025.5.1 or newer.
 

requirements.txt

@@ -6,7 +6,7 @@ scipy>=1.10.0
 h5netcdf>=1.8.0
 h5py>=3.12.0
 pyfive>=1.1.1
-s3fs>=2024.6.0
+fsspec>=2026.2.0
 dask>=2025.5.1
 distributed>=2025.5.1
 uritools>=4.0.3