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Remove support for python 3.8 #24919

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Merged
merged 9 commits into from
Jan 11, 2023
Merged

Remove support for python 3.8 #24919

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e2a2a87
Remove support for python 3.8
ksunden Jan 10, 2023
a745964
Add development release note
ksunden Jan 10, 2023
d03f8c9
Update circle config, missed originally
ksunden Jan 10, 2023
63e9d7f
Add back no-lto test
ksunden Jan 10, 2023
22a6a2e
bump since_mpl_version
ksunden Jan 10, 2023
c0ed024
Bump kiwisolver and pillow minvers
ksunden Jan 10, 2023
11f572f
Update dependencies docs
ksunden Jan 10, 2023
4b0f499
drop 3.11 to 3.10 on appveyor
ksunden Jan 10, 2023
cc39e21
Add ImportWarning filter for get_attr test (needed for gtk4)
ksunden Jan 11, 2023
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4 changes: 2 additions & 2 deletions 4 .appveyor.yml
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Expand Up @@ -22,10 +22,10 @@ environment:
--cov-report= --cov=lib --log-level=DEBUG

matrix:
- PYTHON_VERSION: "3.8"
- PYTHON_VERSION: "3.9"
CONDA_INSTALL_LOCN: "C:\\Miniconda3-x64"
TEST_ALL: "no"
- PYTHON_VERSION: "3.9"
- PYTHON_VERSION: "3.10"
CONDA_INSTALL_LOCN: "C:\\Miniconda3-x64"
TEST_ALL: "no"

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6 changes: 3 additions & 3 deletions 6 .circleci/config.yml
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Expand Up @@ -205,9 +205,9 @@ commands:
#

jobs:
docs-python38:
docs-python39:
docker:
- image: cimg/python:3.8
- image: cimg/python:3.9
resource_class: large
steps:
- checkout
Expand Down Expand Up @@ -250,4 +250,4 @@ workflows:
jobs:
# NOTE: If you rename this job, then you must update the `if` condition
# and `circleci-jobs` option in `.github/workflows/circleci.yml`.
- docs-python38
- docs-python39
2 changes: 1 addition & 1 deletion 2 .github/workflows/cibuildsdist.yml
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Expand Up @@ -37,7 +37,7 @@ jobs:
strategy:
matrix:
os: [ubuntu-20.04]
python-version: ['3.8', '3.9', '3.10', '3.11']
python-version: ['3.9', '3.10', '3.11']

steps:
- uses: actions/checkout@v3
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15 changes: 1 addition & 14 deletions 15 .github/workflows/cibuildwheel.yml
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Expand Up @@ -100,23 +100,10 @@ jobs:
MPL_DISABLE_FH4: "yes"
CIBW_ARCHS: ${{ matrix.cibw_archs }}

- name: Build wheels for CPython 3.8
uses: pypa/cibuildwheel@v2.11.4
env:
CIBW_BUILD: "cp38-*"
CIBW_SKIP: "*-musllinux*"
CIBW_MANYLINUX_X86_64_IMAGE: manylinux2010
CIBW_MANYLINUX_I686_IMAGE: manylinux2010
CIBW_BEFORE_BUILD: >-
pip install certifi numpy==1.19.2 &&
git clean -fxd build
MPL_DISABLE_FH4: "yes"
CIBW_ARCHS: ${{ matrix.cibw_archs }}

- name: Build wheels for PyPy
uses: pypa/cibuildwheel@v2.11.4
env:
CIBW_BUILD: "pp38-* pp39-*"
CIBW_BUILD: "pp39-*"
CIBW_SKIP: "*-musllinux*"
CIBW_BEFORE_BUILD: >-
pip install certifi oldest-supported-numpy &&
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6 changes: 3 additions & 3 deletions 6 .github/workflows/circleci.yml
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Expand Up @@ -3,7 +3,7 @@ name: "CircleCI artifact handling"
on: [status]
jobs:
circleci_artifacts_redirector_job:
if: "${{ github.event.context == 'ci/circleci: docs-python38' }}"
if: "${{ github.event.context == 'ci/circleci: docs-python39' }}"
permissions:
statuses: write
runs-on: ubuntu-latest
Expand All @@ -14,11 +14,11 @@ jobs:
with:
repo-token: ${{ secrets.GITHUB_TOKEN }}
artifact-path: 0/doc/build/html/index.html
circleci-jobs: docs-python38
circleci-jobs: docs-python39
job-title: View the built docs

post_warnings_as_review:
if: "${{ github.event.context == 'ci/circleci: docs-python38' }}"
if: "${{ github.event.context == 'ci/circleci: docs-python39' }}"
permissions:
contents: read
checks: write
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2 changes: 1 addition & 1 deletion 2 .github/workflows/reviewdog.yml
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Expand Up @@ -17,7 +17,7 @@ jobs:
- name: Set up Python 3
uses: actions/setup-python@v4
with:
python-version: 3.8
python-version: 3.9

- name: Install flake8
run: pip3 install -r requirements/testing/flake8.txt
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13 changes: 5 additions & 8 deletions 13 .github/workflows/tests.yml
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Expand Up @@ -37,27 +37,24 @@ jobs:
include:
- name-suffix: "(Minimum Versions)"
os: ubuntu-20.04
python-version: 3.8
python-version: 3.9
extra-requirements: '-c requirements/testing/minver.txt'
pyqt5-ver: '==5.11.2 sip==5.0.0' # oldest versions with a Py3.8 wheel.
pyqt5-ver: '==5.12.2 sip==5.0.0' # oldest versions with a Py3.9 wheel.
pyqt6-ver: '==6.1.0 PyQt6-Qt6==6.1.0'
pyside2-ver: '==5.14.0' # oldest version with working Py3.8 wheel.
pyside2-ver: '==5.15.1' # oldest version with working Py3.9 wheel.
pyside6-ver: '==6.0.0'
delete-font-cache: true
- os: ubuntu-20.04
python-version: 3.8
extra-requirements: '-r requirements/testing/extra.txt'
CFLAGS: "-fno-lto" # Ensure that disabling LTO works.
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We probably want to keep the no LTO test case?

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added back (to 3.9)

- os: ubuntu-20.04
python-version: 3.9
extra-requirements: '-r requirements/testing/extra.txt'
CFLAGS: "-fno-lto" # Ensure that disabling LTO works.
- os: ubuntu-20.04
python-version: '3.10'
extra-requirements: '-r requirements/testing/extra.txt'
- os: ubuntu-20.04
python-version: '3.11'
- os: macos-latest
python-version: 3.8
python-version: 3.9

steps:
- uses: actions/checkout@v3
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22 changes: 11 additions & 11 deletions 22 azure-pipelines.yml
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Expand Up @@ -38,33 +38,33 @@ stages:
- job: Pytest
strategy:
matrix:
Linux_py38:
vmImage: 'ubuntu-20.04' # keep one job pinned to the oldest image
python.version: '3.8'
Linux_py39:
vmImage: 'ubuntu-latest'
vmImage: 'ubuntu-20.04' # keep one job pinned to the oldest image
python.version: '3.9'
Linux_py310:
vmImage: 'ubuntu-latest'
python.version: '3.10'
macOS_py38:
vmImage: 'macOS-latest'
python.version: '3.8'
Linux_py311:
vmImage: 'ubuntu-latest'
python.version: '3.11'
macOS_py39:
vmImage: 'macOS-latest'
python.version: '3.9'
macOS_py310:
vmImage: 'macOS-latest'
python.version: '3.10'
Windows_py38:
vmImage: 'windows-2019' # keep one job pinned to the oldest image
python.version: '3.8'
macOS_py310:
vmImage: 'macOS-latest'
python.version: '3.11'
Windows_py39:
vmImage: 'windows-latest'
vmImage: 'windows-2019' # keep one job pinned to the oldest image
python.version: '3.9'
Windows_py310:
vmImage: 'windows-latest'
python.version: '3.10'
Windows_py311:
vmImage: 'windows-latest'
python.version: '3.11'
maxParallel: 4
pool:
vmImage: '$(vmImage)'
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18 changes: 18 additions & 0 deletions 18 doc/api/next_api_changes/development/24919-KS.rst
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@@ -0,0 +1,18 @@
Increase to minimum supported versions of dependencies
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

For Matplotlib 3.8, the :ref:`minimum supported versions <dependencies>` are
being bumped:

+------------+-----------------+---------------+
| Dependency | min in mpl3.7 | min in mpl3.8 |
+============+=================+===============+
| Python | 3.8 | 3.9 |
+------------+-----------------+---------------+
| kiwisolver | 1.0.1 | 1.3.1 |
+------------+-----------------+---------------+
| Pillow | 6.2.1 | 8.0 |
+------------+-----------------+---------------+

This is consistent with our :ref:`min_deps_policy` and `NEP29
<https://numpy.org/neps/nep-0029-deprecation_policy.html>`__
7 changes: 3 additions & 4 deletions 7 doc/devel/dependencies.rst
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Expand Up @@ -15,15 +15,15 @@ When installing through a package manager like ``pip`` or ``conda``, the
mandatory dependencies are automatically installed. This list is mainly for
reference.

* `Python <https://www.python.org/downloads/>`_ (>= 3.8)
* `Python <https://www.python.org/downloads/>`_ (>= 3.9)
* `contourpy <https://pypi.org/project/contourpy/>`_ (>= 1.0.1)
* `cycler <https://matplotlib.org/cycler/>`_ (>= 0.10.0)
* `dateutil <https://pypi.org/project/python-dateutil/>`_ (>= 2.7)
* `fontTools <https://fonttools.readthedocs.io/en/latest/>`_ (>= 4.22.0)
* `kiwisolver <https://github.com/nucleic/kiwi>`_ (>= 1.0.1)
* `kiwisolver <https://github.com/nucleic/kiwi>`_ (>= 1.3.1)
* `NumPy <https://numpy.org>`_ (>= 1.20)
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Bump to 1.21 while at it? (End of month)

* `packaging <https://pypi.org/project/packaging/>`_ (>= 20.0)
* `Pillow <https://pillow.readthedocs.io/en/latest/>`_ (>= 6.2)
* `Pillow <https://pillow.readthedocs.io/en/latest/>`_ (>= 8.0)
* `pyparsing <https://pypi.org/project/pyparsing/>`_ (>= 2.3.1)
* `setuptools <https://setuptools.readthedocs.io/en/latest/>`_
* `pyparsing <https://pypi.org/project/pyparsing/>`_ (>= 2.3.1)
Expand Down Expand Up @@ -180,7 +180,6 @@ Minimum pip / manylinux support (linux)
Matplotlib publishes `manylinux wheels <https://github.com/pypa/manylinux>`_
which have a minimum version of pip which will recognize the wheels

- Python 3.8: ``manylinx2010`` / pip >= 19.0
- Python 3.9+: ``manylinx2014`` / pip >= 19.3

In all cases the required version of pip is embedded in the CPython source.
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1 change: 1 addition & 0 deletions 1 lib/matplotlib/tests/test_getattr.py
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Expand Up @@ -18,6 +18,7 @@

@pytest.mark.parametrize('module_name', module_names)
@pytest.mark.filterwarnings('ignore::DeprecationWarning')
@pytest.mark.filterwarnings('ignore::ImportWarning')
def test_getattr(module_name):
"""
Test that __getattr__ methods raise AttributeError for unknown keys.
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2 changes: 1 addition & 1 deletion 2 requirements/testing/extra.txt
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@@ -1,4 +1,4 @@
# Extra pip requirements for the Python 3.8+ builds
# Extra pip requirements for the Python 3.9+ builds

--prefer-binary
ipykernel
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4 changes: 2 additions & 2 deletions 4 requirements/testing/minver.txt
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Expand Up @@ -2,11 +2,11 @@

contourpy==1.0.1
cycler==0.10
kiwisolver==1.0.1
kiwisolver==1.3.1
importlib-resources==3.2.0
numpy==1.20.0
packaging==20.0
pillow==6.2.1
pillow==8.0.0
pyparsing==2.3.1
python-dateutil==2.7
fonttools==4.22.0
5 changes: 2 additions & 3 deletions 5 setup.py
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Expand Up @@ -8,8 +8,8 @@
# and/or pip.
import sys

py_min_version = (3, 8) # minimal supported python version
since_mpl_version = (3, 6) # py_min_version is required since this mpl version
py_min_version = (3, 9) # minimal supported python version
since_mpl_version = (3, 8) # py_min_version is required since this mpl version

if sys.version_info < py_min_version:
error = """
Expand Down Expand Up @@ -293,7 +293,6 @@ def make_release_tree(self, base_dir, files):
'License :: OSI Approved :: Python Software Foundation License',
'Programming Language :: Python',
'Programming Language :: Python :: 3',
'Programming Language :: Python :: 3.8',
'Programming Language :: Python :: 3.9',
'Programming Language :: Python :: 3.10',
'Programming Language :: Python :: 3.11',
Expand Down
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