Add Python 3.9 to macos-14

[hugovk]

Tool name

Python

Tool license

PSF License

Add or update?

• Add
• Update

Desired version

3.9.13

Approximate size

No response

Brief description of tool

Python 3.9.1 was the first to support Apple Silicon: https://www.python.org/downloads/release/python-391/

Edit: Python 3.8.10 also supports Apple Silicon: https://www.python.org/downloads/release/python-3810/

Python 3.10-3.13 are already available for macos-14, but 3.9 is missing from actions/setup-python@v5:

  Version ~3.9.0-0 was not found in the local cache
  Error: The version '3.9' with architecture 'arm64' was not found for macOS 14.2.1.
  The list of all available versions can be found here: https://raw.githubusercontent.com/actions/python-versions/main/versions-manifest.json

URL for tool's homepage

https://www.python.org

Provide a basic test case to validate the tool's functionality.

name: Test

on: [push, pull_request, workflow_dispatch]

jobs:
  test:
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
        os: [macos-latest, macos-14]

    steps:
      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}

      - run: python --version --version

Platforms where you need the tool

• Azure DevOps
• GitHub Actions

Runner images where you need the tool

• Ubuntu 20.04
• Ubuntu 22.04
• macOS 11
• macOS 12
• macOS 13
• macOS 13 Arm64
• macOS 14
• macOS 14 Arm64
• Windows Server 2019
• Windows Server 2022

Can this tool be installed during the build?

No response

Tool installation time in runtime

No response

Are you willing to submit a PR?

Yes

[erik-bershel]

Hey @hugovk!
It's an action behaviour but not an image. You can report it here: https://github.com/actions/setup-python
Also I noticed that I can provide more info about it. It was stated that this action wouldn't support this arch/version pair. Check here: actions/setup-python#696.