Add inital CI for 3.14 #4804

cooperlees · 2025-10-22T02:18:54Z

Description

State in pyproject that we somewhat work in 3.14
Enable py314 tox
Add base testing action so we don't regress

Note: We don't support some 3.14 grammar/parsing still

Test:

Install in 3.14 and format something

MacBookPro:black cooper$ python3 -V
Python 3.14.0
MacBookPro:black cooper$ python3 -m venv --upgrade-deps /tmp/tb
t/mp/MacBookPro:black cooper$ /tmp/tb/bin/pip install -e .
...
MacBookPro:black cooper$ time /tmp/tb/bin/black ../bandersnatch/ ../flake8-bugbear/
All done! ✨ 🍰 ✨
134 files left unchanged.

real    0m0.189s
user    0m0.159s
sys    0m0.036s

Run linting/tests:
/tmp/tb/bin/tox -e py314
/tmp/tb/bin/pre-commit run -a
- TODO: flake8 + mypy still do not pass in 3.14
- Let's do in dedicated PR later

Checklist - did you ...

Implement any code style changes under the --preview style, following the
stability policy?
Add an entry in CHANGES.md if necessary?
Add / update tests if necessary?
Add new / update outdated documentation?

- State in pyproject that we somewhat work in 3.14 - Enable py314 tox - Add base testing action so we don't regress **Note:** We don't support some 3.14 grammar/parsing still Test: - Install in 3.14 and format something ``` MacBookPro:black cooper$ python3 -V Python 3.14.0 MacBookPro:black cooper$ python3 -m venv --upgrade-deps /tmp/tb t/mp/MacBookPro:black cooper$ /tmp/tb/bin/pip install -e . ... MacBookPro:black cooper$ time /tmp/tb/bin/black ../bandersnatch/ ../flake8-bugbear/ All done! ✨ 🍰 ✨ 134 files left unchanged. real 0m0.189s user 0m0.159s sys 0m0.036s ``` - Run linting/tests: - `/tmp/tb/bin/tox -e py314` - `/tmp/tb/bin/pre-commit run -a` - TODO: flake8 + mypy still do not pass in 3.14 - Let's do in dedicated PR later

cooperlees · 2025-10-22T02:33:01Z

pyproject.toml

  "Programming Language :: Python :: 3.11",
  "Programming Language :: Python :: 3.12",
  "Programming Language :: Python :: 3.13",
+  "Programming Language :: Python :: 3.14",


Happy to take this out until we have what we think is all parsing support ...

github-actions · 2025-10-22T02:37:29Z

diff-shades reports zero changes comparing this PR (f2ca52e) to main (27a3085).

What is this? | Workflow run | diff-shades documentation

Copilot

Pull Request Overview

This PR adds initial support for Python 3.14 to the project's CI/CD infrastructure and package metadata, though full grammar/parsing support is not yet complete.

Key changes:

Added Python 3.14 to the test matrix in CI workflows and tox configuration
Declared Python 3.14 compatibility in the package classifiers
Documented the changes in CHANGES.md

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
tox.ini	Added py314 to the list of test environments
pyproject.toml	Added Python 3.14 classifier to declare compatibility
CHANGES.md	Documented the addition of Python 3.14 support in two separate entries
.github/workflows/test.yml	Added Python 3.14 to the CI test matrix

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

CHANGES.md

This PR contains the following updates: | Package | Change | Age | Confidence | |---|---|---|---| | [black](https://github.com/psf/black) ([changelog](https://github.com/psf/black/blob/main/CHANGES.md)) | `<25.9.1,>=25.9.0` -> `<25.11.1,>=25.11.0` | [![age](https://developer.mend.io/api/mc/badges/age/pypi/black/25.11.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/black/25.9.0/25.11.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | --- ### Release Notes <details> <summary>psf/black (black)</summary> ### [`v25.11.0`](https://github.com/psf/black/blob/HEAD/CHANGES.md#25110) [Compare Source](psf/black@25.9.0...25.11.0) ##### Highlights - Enable base 3.14 support ([#4804](psf/black#4804)) - Add support for the new Python 3.14 t-string syntax introduced by PEP 750 ([#4805](psf/black#4805)) ##### Stable style - Fix bug where comments between `# fmt: off` and `# fmt: on` were reformatted ([#4811](psf/black#4811)) - Comments containing fmt directives now preserve their exact formatting instead of being normalized ([#4811](psf/black#4811)) ##### Preview style - Move `multiline_string_handling` from `--unstable` to `--preview` ([#4760](psf/black#4760)) - Fix bug where module docstrings would be treated as normal strings if preceded by comments ([#4764](psf/black#4764)) - Fix bug where python 3.12 generics syntax split line happens weirdly ([#4777](psf/black#4777)) - Standardize type comments to form `# type: <value>` ([#4645](psf/black#4645)) - Fix `fix_fmt_skip_in_one_liners` preview feature to respect `# fmt: skip` for compound statements with semicolon-separated bodies ([#4800](psf/black#4800)) ##### Configuration - Add `no_cache` option to control caching behavior. ([#4803](psf/black#4803)) ##### Packaging - Releases now include arm64 Linux binaries ([#4773](psf/black#4773)) ##### Output - Write unchanged content to stdout when excluding formatting from stdin using pipes ([#4610](psf/black#4610)) ##### *Blackd* - Implemented BlackDClient. This simple python client allows to easily send formatting requests to blackd ([#4774](psf/black#4774)) ##### Integrations - Enable 3.14 base CI ([#4804](psf/black#4804)) - Enhance GitHub Action `psf/black` to support the `required-version` major-version-only "stability" format when using pyproject.toml ([#4770](psf/black#4770)) - Improve error message for vim plugin users. It now handles independently vim version - Vim: Warn on unsupported Vim and Python versions independently ([#4772](psf/black#4772)) - Vim: Print the import paths when importing black fails ([#4675](psf/black#4675)) - Vim: Fix handling of virtualenvs that have a different Python version ([#4675](psf/black#4675)) </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR is behind base branch, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).  Reviewed-on: https://git.tainton.uk/repos/roboluke/pulls/393 Co-authored-by: renovate[bot] <[email protected]> Co-committed-by: renovate[bot] <[email protected]>

This PR contains the following updates: | Package | Change | Age | Confidence | |---|---|---|---| | [black](https://github.com/psf/black) ([changelog](https://github.com/psf/black/blob/main/CHANGES.md)) | `<25.9.1,>=25.9.0` -> `<25.11.1,>=25.11.0` | [![age](https://developer.mend.io/api/mc/badges/age/pypi/black/25.11.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/pypi/black/25.9.0/25.11.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | --- ### Release Notes <details> <summary>psf/black (black)</summary> ### [`v25.11.0`](https://github.com/psf/black/blob/HEAD/CHANGES.md#25110) [Compare Source](psf/black@25.9.0...25.11.0) ##### Highlights - Enable base 3.14 support ([#4804](psf/black#4804)) - Add support for the new Python 3.14 t-string syntax introduced by PEP 750 ([#4805](psf/black#4805)) ##### Stable style - Fix bug where comments between `# fmt: off` and `# fmt: on` were reformatted ([#4811](psf/black#4811)) - Comments containing fmt directives now preserve their exact formatting instead of being normalized ([#4811](psf/black#4811)) ##### Preview style - Move `multiline_string_handling` from `--unstable` to `--preview` ([#4760](psf/black#4760)) - Fix bug where module docstrings would be treated as normal strings if preceded by comments ([#4764](psf/black#4764)) - Fix bug where python 3.12 generics syntax split line happens weirdly ([#4777](psf/black#4777)) - Standardize type comments to form `# type: <value>` ([#4645](psf/black#4645)) - Fix `fix_fmt_skip_in_one_liners` preview feature to respect `# fmt: skip` for compound statements with semicolon-separated bodies ([#4800](psf/black#4800)) ##### Configuration - Add `no_cache` option to control caching behavior. ([#4803](psf/black#4803)) ##### Packaging - Releases now include arm64 Linux binaries ([#4773](psf/black#4773)) ##### Output - Write unchanged content to stdout when excluding formatting from stdin using pipes ([#4610](psf/black#4610)) ##### *Blackd* - Implemented BlackDClient. This simple python client allows to easily send formatting requests to blackd ([#4774](psf/black#4774)) ##### Integrations - Enable 3.14 base CI ([#4804](psf/black#4804)) - Enhance GitHub Action `psf/black` to support the `required-version` major-version-only "stability" format when using pyproject.toml ([#4770](psf/black#4770)) - Improve error message for vim plugin users. It now handles independently vim version - Vim: Warn on unsupported Vim and Python versions independently ([#4772](psf/black#4772)) - Vim: Print the import paths when importing black fails ([#4675](psf/black#4675)) - Vim: Fix handling of virtualenvs that have a different Python version ([#4675](psf/black#4675)) </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR is behind base branch, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).  Reviewed-on: https://git.tainton.uk/repos/epage/pulls/176 Co-authored-by: renovate[bot] <[email protected]> Co-committed-by: renovate[bot] <[email protected]>

cooperlees added 2 commits October 21, 2025 21:15

Add CHANGES.md entries

f2ca52e

cooperlees added the 3.14 label Oct 22, 2025

cooperlees commented Oct 22, 2025

View reviewed changes

cooperlees marked this pull request as ready for review October 22, 2025 03:01

cooperlees requested a review from Copilot October 22, 2025 16:33

Copilot AI reviewed Oct 22, 2025

View reviewed changes

CHANGES.md Show resolved Hide resolved

cooperlees merged commit 6122359 into main Oct 22, 2025
30 checks passed

cooperlees deleted the 3_14 branch October 22, 2025 18:17

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cooperlees commented Oct 22, 2025 •

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cooperlees commented Oct 22, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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Description

Checklist - did you ...

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cooperlees commented Oct 22, 2025 •

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