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Merged
valeriupredoi merged 2 commits into from
Nov 21, 2025
Merged

Drop support for Python 3.11 #2905

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bf3374d
Drop support for Python 3.11
bouweandela Nov 21, 2025
2d56539
Modernize syntax
bouweandela Nov 21, 2025
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2 changes: 1 addition & 1 deletion .circleci/config.yml
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Expand Up @@ -209,7 +209,7 @@ jobs:
# Install prerequisites
mkdir /logs
# Create and activate conda environment
mamba create -y --name esmvaltool 'python=3.11'
mamba create -y --name esmvaltool 'python=3.12'
set +x; conda activate esmvaltool; set -x
# Install
mamba install -y esmvalcore
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4 changes: 2 additions & 2 deletions .github/workflows/install-from-conda.yml
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Expand Up @@ -40,7 +40,7 @@ jobs:
if: github.repository == 'ESMValGroup/ESMValCore' # avoid GAs in forks
strategy:
matrix:
python-version: ["3.11", "3.12", "3.13"]
python-version: ["3.12", "3.13"]
# fail-fast set to False allows all other tests
# in the workflow to run regardless of any fail
fail-fast: false
Expand Down Expand Up @@ -76,7 +76,7 @@ jobs:
if: github.repository == 'ESMValGroup/ESMValCore' # avoid GAs in forks
strategy:
matrix:
python-version: ["3.11", "3.12", "3.13"]
python-version: ["3.12", "3.13"]
architecture: ["x64"] # need to force Intel, arm64 builds have issues
fail-fast: false
name: OSX Python ${{ matrix.python-version }}
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2 changes: 1 addition & 1 deletion .github/workflows/install-from-condalock-file.yml
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Expand Up @@ -30,7 +30,7 @@ jobs:
if: github.repository == 'ESMValGroup/ESMValCore' # avoid GAs in forks
strategy:
matrix:
python-version: ["3.11", "3.12", "3.13"]
python-version: ["3.12", "3.13"]
fail-fast: false
name: Linux Python ${{ matrix.python-version }}
steps:
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4 changes: 2 additions & 2 deletions .github/workflows/install-from-pypi.yml
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Expand Up @@ -40,7 +40,7 @@ jobs:
if: github.repository == 'ESMValGroup/ESMValCore' # avoid GAs in forks
strategy:
matrix:
python-version: ["3.11", "3.12", "3.13"]
python-version: ["3.12", "3.13"]
# fail-fast set to False allows all other tests
# in the workflow to run regardless of any fail
fail-fast: false
Expand Down Expand Up @@ -79,7 +79,7 @@ jobs:
if: github.repository == 'ESMValGroup/ESMValCore' # avoid GAs in forks
strategy:
matrix:
python-version: ["3.11", "3.12", "3.13"]
python-version: ["3.12", "3.13"]
architecture: ["x64"] # need to force Intel, arm64 builds have issues
fail-fast: false
name: OSX Python ${{ matrix.python-version }}
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4 changes: 2 additions & 2 deletions .github/workflows/install-from-source.yml
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Expand Up @@ -38,7 +38,7 @@ jobs:
if: github.repository == 'ESMValGroup/ESMValCore' # avoid GAs in forks
strategy:
matrix:
python-version: ["3.11", "3.12", "3.13"]
python-version: ["3.12", "3.13"]
fail-fast: false
name: Linux Python ${{ matrix.python-version }}
steps:
Expand Down Expand Up @@ -76,7 +76,7 @@ jobs:
if: github.repository == 'ESMValGroup/ESMValCore' # avoid GAs in forks
strategy:
matrix:
python-version: ["3.11", "3.12", "3.13"]
python-version: ["3.12", "3.13"]
architecture: ["x64"] # need to force Intel, arm64 builds have issues
fail-fast: false
name: OSX Python ${{ matrix.python-version }}
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4 changes: 2 additions & 2 deletions .github/workflows/run-tests-monitor.yml
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Expand Up @@ -23,7 +23,7 @@ jobs:
if: github.repository == 'ESMValGroup/ESMValCore' # avoid GAs in forks
strategy:
matrix:
python-version: ["3.11", "3.12", "3.13"]
python-version: ["3.12", "3.13"]
fail-fast: false
name: Linux Python ${{ matrix.python-version }}
steps:
Expand Down Expand Up @@ -56,7 +56,7 @@ jobs:
if: github.repository == 'ESMValGroup/ESMValCore' # avoid GAs in forks
strategy:
matrix:
python-version: ["3.11", "3.12", "3.13"]
python-version: ["3.12", "3.13"]
architecture: ["x64"] # need to force Intel, arm64 builds have issues
fail-fast: false
name: OSX Python ${{ matrix.python-version }}
Expand Down
4 changes: 2 additions & 2 deletions .github/workflows/run-tests.yml
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Expand Up @@ -40,7 +40,7 @@ jobs:
if: github.repository == 'ESMValGroup/ESMValCore' # avoid GAs in forks
strategy:
matrix:
python-version: ["3.11", "3.12", "3.13"]
python-version: ["3.12", "3.13"]
fail-fast: false
name: Linux Python ${{ matrix.python-version }}
steps:
Expand Down Expand Up @@ -77,7 +77,7 @@ jobs:
if: github.repository == 'ESMValGroup/ESMValCore' # avoid GAs in forks
strategy:
matrix:
python-version: ["3.11", "3.12", "3.13"]
python-version: ["3.12", "3.13"]
architecture: ["x64"] # need to force Intel, arm64 builds have issues
fail-fast: false
name: OSX Python ${{ matrix.python-version }}
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2 changes: 1 addition & 1 deletion environment.yml
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Expand Up @@ -40,7 +40,7 @@ dependencies:
- psutil
- py-cordex
- pybtex
- python >=3.11
- python >=3.12
- python-stratify >=0.3
- pyyaml
- requests
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4 changes: 2 additions & 2 deletions esmvalcore/preprocessor/__init__.py
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Expand Up @@ -6,7 +6,7 @@
import inspect
import logging
from pprint import pformat
from typing import TYPE_CHECKING, Any, TypeAlias
from typing import TYPE_CHECKING, Any

from iris.cube import Cube, CubeList

Expand Down Expand Up @@ -672,7 +672,7 @@ def group(self, keys: list) -> str:
return "_".join(identifier)


PreprocessorItem: TypeAlias = PreprocessorFile | Cube | DataElement
type PreprocessorItem = PreprocessorFile | Cube | DataElement


def _apply_multimodel(
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3 changes: 1 addition & 2 deletions pyproject.toml
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Expand Up @@ -18,7 +18,6 @@ classifiers = [
"Natural Language :: English",
"Operating System :: POSIX :: Linux",
"Programming Language :: Python :: 3",
"Programming Language :: Python :: 3.11",
"Programming Language :: Python :: 3.12",
"Programming Language :: Python :: 3.13",
"Topic :: Scientific/Engineering",
Expand Down Expand Up @@ -75,7 +74,7 @@ dependencies = [
description = "A community tool for pre-processing data from Earth system models in CMIP and running analysis scripts"
license = {text = "Apache License, Version 2.0"}
name = "ESMValCore"
requires-python = ">=3.11"
requires-python = ">=3.12"

[project.optional-dependencies]
test = [
Expand Down