Code Checks workflow (pandas-dev/pandas)
The Code Checks workflow from pandas-dev/pandas, explained and optimized by Latchkey.
C
CI health: C - fair
The optimized version below adds run de-duplication, job timeouts.
What it does
This is the Code Checks workflow from the pandas-dev/pandas repository, a real project running GitHub Actions. It is shown here with attribution under its BSD-3-Clause license.
Below, Latchkey shows a faster, safer version produced by its optimization engine.
The workflow
workflow (.yml)
name: Code Checks
on:
push:
branches:
- main
- 3.0.x
pull_request:
branches:
- main
- 3.0.x
defaults:
run:
shell: bash -euox pipefail {0}
permissions: {}
jobs:
doctest:
name: Doctests
runs-on: ubuntu-24.04
permissions:
contents: read
concurrency:
# https://github.community/t/concurrecy-not-work-for-push/183068/7
group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-doctests
cancel-in-progress: true
steps:
- name: Checkout
uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
with:
fetch-depth: 0
- name: Create virtual environment with Pixi
uses: ./.github/actions/setup-pixi
with:
environment: "doctests"
- name: Build pandas
run: |
pixi run \
--environment doctests \
build-pandas \
--editable \
-Csetup-args="--werror"
- name: Run doctests
run: pixi run --environment doctests ci-doctests
- name: Run scripts tests
run: pixi run --environment doctests ci-scripts-tests
type-checking:
name: Type Checking
runs-on: ubuntu-24.04
permissions:
contents: read
concurrency:
# https://github.community/t/concurrecy-not-work-for-push/183068/7
group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-typechecking
cancel-in-progress: true
steps:
- name: Checkout
uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
with:
fetch-depth: 0
- name: Create virtual environment with Pixi
uses: ./.github/actions/setup-pixi
with:
environment: "typing"
- name: Build pandas
run: |
pixi run \
--environment typing \
build-pandas \
--editable \
-Csetup-args="--werror"
- name: Typing Checks
run: pixi run --environment typing ci-typing
asv-benchmarks:
name: ASV Benchmarks
runs-on: ubuntu-24.04
permissions:
contents: read
concurrency:
# https://github.community/t/concurrecy-not-work-for-push/183068/7
group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-asv-benchmarks
cancel-in-progress: true
steps:
- name: Checkout
uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
with:
fetch-depth: 0
- name: Create virtual environment with Pixi
uses: ./.github/actions/setup-pixi
with:
environment: "asv"
- name: Build pandas
run: |
pixi run \
--environment asv \
build-pandas \
--editable \
-Csetup-args="--werror"
- name: Run ASV benchmarks
run: pixi run --environment asv ci-asv
requirements-dev-text-installable:
name: Test install requirements-dev.txt
runs-on: ubuntu-24.04
permissions:
contents: read
concurrency:
# https://github.community/t/concurrecy-not-work-for-push/183068/7
group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-requirements-dev-text-installable
cancel-in-progress: true
steps:
- name: Checkout
uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
- name: Setup Python
id: setup_python
uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6
with:
python-version: '3.11'
cache: 'pip'
pip-install: '-r requirements-dev.txt'
cache-dependency-path: 'requirements-dev.txt'
- name: Check Pip Cache Hit
run: echo ${{ steps.setup_python.outputs.cache-hit }}
The same workflow, on Latchkey
Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.
name: Code Checks on: push: branches: - main - 3.0.x pull_request: branches: - main - 3.0.x defaults: run: shell: bash -euox pipefail {0} permissions: {} concurrency: group: ${{ github.workflow }}-${{ github.ref }} cancel-in-progress: true jobs: doctest: timeout-minutes: 30 name: Doctests runs-on: latchkey-small permissions: contents: read concurrency: # https://github.community/t/concurrecy-not-work-for-push/183068/7 group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-doctests cancel-in-progress: true steps: - name: Checkout uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0 with: fetch-depth: 0 - name: Create virtual environment with Pixi uses: ./.github/actions/setup-pixi with: environment: "doctests" - name: Build pandas run: | pixi run \ --environment doctests \ build-pandas \ --editable \ -Csetup-args="--werror" - name: Run doctests run: pixi run --environment doctests ci-doctests - name: Run scripts tests run: pixi run --environment doctests ci-scripts-tests type-checking: timeout-minutes: 30 name: Type Checking runs-on: latchkey-small permissions: contents: read concurrency: # https://github.community/t/concurrecy-not-work-for-push/183068/7 group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-typechecking cancel-in-progress: true steps: - name: Checkout uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0 with: fetch-depth: 0 - name: Create virtual environment with Pixi uses: ./.github/actions/setup-pixi with: environment: "typing" - name: Build pandas run: | pixi run \ --environment typing \ build-pandas \ --editable \ -Csetup-args="--werror" - name: Typing Checks run: pixi run --environment typing ci-typing asv-benchmarks: timeout-minutes: 30 name: ASV Benchmarks runs-on: latchkey-small permissions: contents: read concurrency: # https://github.community/t/concurrecy-not-work-for-push/183068/7 group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-asv-benchmarks cancel-in-progress: true steps: - name: Checkout uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0 with: fetch-depth: 0 - name: Create virtual environment with Pixi uses: ./.github/actions/setup-pixi with: environment: "asv" - name: Build pandas run: | pixi run \ --environment asv \ build-pandas \ --editable \ -Csetup-args="--werror" - name: Run ASV benchmarks run: pixi run --environment asv ci-asv requirements-dev-text-installable: timeout-minutes: 30 name: Test install requirements-dev.txt runs-on: latchkey-small permissions: contents: read concurrency: # https://github.community/t/concurrecy-not-work-for-push/183068/7 group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-requirements-dev-text-installable cancel-in-progress: true steps: - name: Checkout uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0 - name: Setup Python id: setup_python uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6 with: python-version: '3.11' cache: 'pip' pip-install: '-r requirements-dev.txt' cache-dependency-path: 'requirements-dev.txt' - name: Check Pip Cache Hit run: echo ${{ steps.setup_python.outputs.cache-hit }}
What changed
- Run on Latchkey managed runners with one line (
runs-on), which apply the fixes below automatically and self-heal transient failures. This example useslatchkey-small; pick the runner size that fits the job. - Cancel superseded runs when a branch or PR gets a newer push.
- Add a job timeout so a hung step cannot burn hours of runner time.
This workflow runs 4 jobs per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.
Actions used in this workflow
Frequently asked questions
What does the Code Checks workflow (pandas-dev/pandas) workflow do?
This is the Code Checks workflow from the pandas-dev/pandas repository, a real project running GitHub Actions. It is shown here with attribution under its BSD-3-Clause license.
What CI health grade does this workflow get?
This Python workflow grades C. Paste your own workflow into the Latchkey grader to see its grade and the exact fixes.
How can I improve this Python workflow?
Apply run de-duplication, job timeouts. Latchkey applies these automatically on managed runners when you point runs-on at Latchkey.