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Feat: add support for Python 3.14 #321

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chalmerlowe merged 16 commits into from
Oct 28, 2025
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Feat: add support for Python 3.14 #321

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0895d92
updates trove classifier
chalmerlowe Oct 23, 2025
fe34053
feat: Add constraints file for Python 3.14
chalmerlowe Oct 22, 2025
05194eb
ci: Add Python 3.14 to GitHub Actions workflow
chalmerlowe Oct 22, 2025
72667c9
fix(kokoro): Preserve NOX_SESSION in presubmit.cfg
chalmerlowe Oct 23, 2025
e265568
feat(ci): Add Python 3.14 support
chalmerlowe Oct 23, 2025
3047e61
🦉 Updates from OwlBot post-processor
gcf-owl-bot[bot] Oct 23, 2025
7c31e84
ci: Re-add Python 3.14 to unittest matrix
chalmerlowe Oct 23, 2025
2a9b3a4
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gcf-owl-bot[bot] Oct 23, 2025
275d0d7
fix(owlbot): Use kwargs to control python versions in templates
chalmerlowe Oct 23, 2025
5148459
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gcf-owl-bot[bot] Oct 23, 2025
44a5cd5
fix(owlbot): Ensure noxfile.py skips cpp impl for 3.14
chalmerlowe Oct 23, 2025
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2 changes: 1 addition & 1 deletion .github/workflows/unittest.yml
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Expand Up @@ -11,7 +11,7 @@ jobs:
runs-on: ubuntu-22.04
strategy:
matrix:
python: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
python: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13', '3.14']
steps:
- name: Checkout
uses: actions/checkout@v4
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6 changes: 4 additions & 2 deletions CONTRIBUTING.rst
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Expand Up @@ -22,7 +22,7 @@ In order to add a feature:
documentation.

- The feature must work fully on the following CPython versions:
3.7, 3.8, 3.9, 3.10, 3.11, 3.12 and 3.13 on both UNIX and Windows.
3.7, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13 and 3.14 on both UNIX and Windows.

- The feature must not add unnecessary dependencies (where
"unnecessary" is of course subjective, but new dependencies should
Expand Down Expand Up @@ -72,7 +72,7 @@ We use `nox <https://nox.readthedocs.io/en/latest/>`__ to instrument our tests.

- To run a single unit test::

$ nox -s unit-3.13 -- -k <name of test>
$ nox -s unit-3.14 -- -k <name of test>


.. note::
Expand Down Expand Up @@ -228,6 +228,7 @@ We support:
- `Python 3.11`_
- `Python 3.12`_
- `Python 3.13`_
- `Python 3.14`_

.. _Python 3.7: https://docs.python.org/3.7/
.. _Python 3.8: https://docs.python.org/3.8/
Expand All @@ -236,6 +237,7 @@ We support:
.. _Python 3.11: https://docs.python.org/3.11/
.. _Python 3.12: https://docs.python.org/3.12/
.. _Python 3.13: https://docs.python.org/3.13/
.. _Python 3.14: https://docs.python.org/3.14/


Supported versions can be found in our ``noxfile.py`` `config`_.
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3 changes: 2 additions & 1 deletion noxfile.py
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Expand Up @@ -42,6 +42,7 @@
"3.11",
"3.12",
"3.13",
"3.14",
]
UNIT_TEST_STANDARD_DEPENDENCIES = [
"mock",
Expand Down Expand Up @@ -370,7 +371,7 @@ def docfx(session):
)


@nox.session(python="3.13")
@nox.session(python="3.14")
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@nox.parametrize(
"protobuf_implementation",
["python", "upb", "cpp"],
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8 changes: 5 additions & 3 deletions owlbot.py
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Expand Up @@ -28,14 +28,16 @@
templated_files = common.py_library(
microgenerator=True,
default_python_version="3.10",
unit_test_python_versions=["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"],
system_test_python_versions=["3.10"],
)
s.move(templated_files, excludes=["docs/multiprocessing.rst", "README.rst"])

s.replace(
".github/workflows/lint.yml",
'python-version: "3.8"',
'python-version: "3.10"'
"noxfile.py",
'''session.python in ("3.11", "3.12", "3.13")''',
'session.python in \("3.11", "3.12", "3.13"\)',
'session.python in ("3.11", "3.12", "3.13", "3.14")'
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@daniel-sanche daniel-sanche Oct 24, 2025

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is this replacement necessary? If the noxfile is a template, I thought this would happen automatically

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@chalmerlowe chalmerlowe Oct 28, 2025

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The noxfile is a template, but it does not (yet) include the update for cpp related runs.

I am gonna see what it takes to add that to the templating process (which is not just a straight template, it involves some logic that synthtool uses to generate parts of the noxfile on the fly.)

)

s.replace(
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1 change: 1 addition & 0 deletions setup.py
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Expand Up @@ -84,6 +84,7 @@
"Programming Language :: Python :: 3.11",
"Programming Language :: Python :: 3.12",
"Programming Language :: Python :: 3.13",
"Programming Language :: Python :: 3.14",
"Operating System :: OS Independent",
"Topic :: Internet",
],
Expand Down
Empty file added testing/constraints-3.14.txt
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