increase references to python version

.github/workflows/ci-tests.yml

@@ -35,18 +35,18 @@ jobs:
       fail-fast: false
       matrix:
         os: ["ubuntu-latest"]
-        python-version: ["3.12"]
+        python-version: ["3.13"]
         session: ["doctest", "gallery", "linkcheck"]
         include:
           - os: "ubuntu-latest"
-            python-version: "3.12"
+            python-version: "3.13"
             session: "tests"
             coverage: "--coverage"
           - os: "ubuntu-latest"
-            python-version: "3.11"
+            python-version: "3.12"
             session: "tests"
           - os: "ubuntu-latest"
-            python-version: "3.10"
+            python-version: "3.11"
             session: "tests"
 
     env:

.github/workflows/ci-wheels.yml

@@ -52,7 +52,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12"]
+        python-version: ["3.11", "3.12", "3.13"]
         session: ["wheel"]
     env:
       ENV_NAME: "ci-wheels"

benchmarks/asv.conf.json

@@ -37,16 +37,16 @@
     ],
     "delegated_env_commands": {
         "c8a663a0": [
+            "ENV_PARENT={conf_dir}/.asv/env/nox313",
+            "PY_VER=3.13 nox --envdir={env_parent} --session=tests --install-only --no-error-on-external-run --verbose"
+        ],
+        "d58fca7e": [
             "ENV_PARENT={conf_dir}/.asv/env/nox312",
             "PY_VER=3.12 nox --envdir={env_parent} --session=tests --install-only --no-error-on-external-run --verbose"
         ],
-        "d58fca7e": [
+        "44fae030": [
             "ENV_PARENT={conf_dir}/.asv/env/nox311",
             "PY_VER=3.11 nox --envdir={env_parent} --session=tests --install-only --no-error-on-external-run --verbose"
-        ],
-        "44fae030": [
-            "ENV_PARENT={conf_dir}/.asv/env/nox310",
-            "PY_VER=3.10 nox --envdir={env_parent} --session=tests --install-only --no-error-on-external-run --verbose"
         ]
     },
 

benchmarks/bm_runner.py

@@ -66,7 +66,7 @@ def _check_requirements(package: str) -> None:
 
 def _prep_data_gen_env() -> None:
     """Create or access a separate, unchanging environment for generating test data."""
-    python_version = "3.12"
+    python_version = "3.13"
     data_gen_var = "DATA_GEN_PYTHON"
     if data_gen_var in environ:
         echo("Using existing data generation environment.")

docs/src/whatsnew/latest.rst

@@ -110,6 +110,8 @@ This document explains the changes made to Iris for this release
 
    * `NumPy v2 changed scalar printing`_
 
+#. `@stephenworsley`_ dropped support for ``py310`` and adopted support for ``py313``
+   as per the `SPEC 0`_ schedule. (:pull:`****`)
 
 📚 Documentation
 ================
@@ -141,3 +143,4 @@ This document explains the changes made to Iris for this release
 .. _NumPy v2 changed data type promotion: https://numpy.org/doc/stable/numpy_2_0_migration_guide.html#changes-to-numpy-data-type-promotion
 .. _NumPy v2 changed scalar printing: https://numpy.org/doc/stable/release/2.0.0-notes.html#representation-of-numpy-scalars-changed
 .. _NumPy v2 full release notes: https://numpy.org/doc/stable/release/2.0.0-notes.html
+.. _SPEC 0: https://scientific-python.org/specs/spec-0000/

lib/iris/tests/test_coding_standards.py

@@ -69,8 +69,8 @@ def test_python_versions():
     Test is designed to fail whenever Iris' supported Python versions are
     updated, insisting that versions are updated EVERYWHERE in-sync.
     """
-    latest_supported = "3.12"
-    all_supported = ["3.10", "3.11", latest_supported]
+    latest_supported = "3.13"
+    all_supported = ["3.11", "3.12", latest_supported]
 
     root_dir = Path(__file__).parents[3]
     workflows_dir = root_dir / ".github" / "workflows"

noxfile.py

@@ -15,7 +15,7 @@
 nox.options.reuse_existing_virtualenvs = True
 
 #: Python versions we can run sessions under
-_PY_VERSIONS_ALL = ["3.10", "3.11", "3.12"]
+_PY_VERSIONS_ALL = ["3.11", "3.12", "3.13"]
 _PY_VERSION_LATEST = _PY_VERSIONS_ALL[-1]
 
 #: One specific python version for docs builds

pyproject.toml

@@ -22,9 +22,9 @@ classifiers = [
     "Operating System :: Unix",
     "Programming Language :: Python",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Programming Language :: Python :: Implementation :: CPython",
     "Topic :: Scientific/Engineering",
     "Topic :: Scientific/Engineering :: Atmospheric Science",
@@ -50,7 +50,7 @@ keywords = [
 ]
 license = {text = "BSD-3-Clause"}
 name = "scitools-iris"
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 
 [project.urls]
 Code = "https://github.com/SciTools/iris"

requirements/py310.yml → requirements/py313.yml

@@ -4,7 +4,7 @@ channels:
   - conda-forge
 
 dependencies:
-  - python =3.10
+  - python =3.13
 
 # Setup dependencies.
   - setuptools >=64