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Python package workflow (deedy5/ddgs)

The Python package workflow from deedy5/ddgs, explained and optimized by Latchkey.

D

CI health: D - needs work

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Source: deedy5/ddgs.github/workflows/python-package.ymlLicense MITView source

What it does

This is the Python package workflow from the deedy5/ddgs repository, a real project running GitHub Actions. It is shown here with attribution under its MIT license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

workflow (.yml)
# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

name: Python package

on:
  push:
    branches: [ '*' ]
  pull_request:
    branches: [ '*' ]

jobs:
  build:

    runs-on: ${{ matrix.os }}

    strategy:
      fail-fast: false
      #max-parallel: 1
      matrix:
        python-version: ["3.10", "3.14"]
        os: [ubuntu-latest, macos-latest, windows-latest]

    steps:
    - uses: actions/checkout@v5
    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v6
      with:
        python-version: ${{ matrix.python-version }}


    - name: Install dependencies
      shell: bash
      run: |
        python -m pip install -U pip
        python -m pip install .[dev,api,mcp]
    - name: Ruff
      run: |
        ruff check .
        ruff format . --check
    - name: Mypy
      run: |
        mypy --install-types --non-interactive .
    - name: Pytest
      id: pytest
      continue-on-error: true
      run: |
        pytest -v
    - name: Pytest re-run failures
      if: steps.pytest.outcome == 'failure'
      run: |
        pytest -v --lf

The same workflow, on Latchkey

Estimated ~20% faster on cache hits, plus fewer wasted runs and a safer supply chain. Added and changed lines are highlighted.

# This workflow will install Python dependencies, run tests and lint with a variety of Python versions
# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
 
name: Python package
 
on:
  push:
    branches: [ '*' ]
  pull_request:
    branches: [ '*' ]
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  build:
    timeout-minutes: 30
 
    runs-on: ${{ matrix.os }}
 
    strategy:
      fail-fast: false
      #max-parallel: 1
      matrix:
        python-version: ["3.10", "3.14"]
        os: [ubuntu-latest, macos-latest, windows-latest]
 
    steps:
    - uses: actions/checkout@v5
    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v6
      with:
        cache: 'pip'
        python-version: ${{ matrix.python-version }}
 
 
    - name: Install dependencies
      shell: bash
      run: |
        python -m pip install -U pip
        python -m pip install .[dev,api,mcp]
    - name: Ruff
      run: |
        ruff check .
        ruff format . --check
    - name: Mypy
      run: |
        mypy --install-types --non-interactive .
    - name: Pytest
      id: pytest
      continue-on-error: true
      run: |
        pytest -v
    - name: Pytest re-run failures
      if: steps.pytest.outcome == 'failure'
      run: |
        pytest -v --lf
 

What changed

What Latchkey heals here

This workflow has steps that commonly fail on transient issues (network, registries, flaky browsers). On Latchkey managed runners they are detected, retried, and self-healed instead of failing your build:

This workflow runs 1 job (6 with the matrix expanded) per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow