If you are developing python packages and using GitHub here are four actions that you can use today to automate your release workflow. Since python tools generally have such a simple cli I have opted to use the cli for most of these, that way I know exactly what is happening and have more control over it if I need.
- Lint
- Test
- Package
- Upload to PyPi
flake8 is pythons quintessential linting tool to ensure that your code is up to the standards that you have set for the project, and to help prevent hidden bugs. I am a heavy user of black
and isort
as well, but for ci flake8 is typically considered the gold standard. black
and isort
will help you automate many fixes suggested by flake8.
- name: Lint with flake8
run: |
pip install flake8 isort black
# stop the build if there are Python syntax errors or undefined names
flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
# exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
pytest is such an amazing project, definitely one to check out and start using if you are not already doing so.
- name: Test with pytest
run: |
pip install pytest
pytest
I am still using the older, less hipster, setuptools to build my projects. Primarily because I am used to to, partly because things such as editable installs are not possible with the newer build tools, and I am a HEAVY user of editable installs.
- name: build
run: |
pip install wheel
python setup.py sdist bdist_wheel
Here I am going to use an amazing action from the GitHub marketplace by @webknjaz. It is super simple. First you need to log into your pypi.org account, go to account settings, enable 2FA, and add a Token, then paste that toke into a secret inside your repos settings. Next just drop the name of that secret into the password field of the action and you are off.
note : I did put a check in to make sure that push event comes from master.
- name: pypi-publish
if: github.ref == 'refs/heads/master'
uses: pypa/gh-action-pypi-publish@v1.1.0
with:
# PyPI user
# Password for your PyPI user or an access token
password: ${{ secrets.pypi_password }}
# The repository URL to use
# repository_url: # optional
# The target directory for distribution
# packages_dir: # optional, default is dist
That's my four top python actions
These are the easiest and most basic four actions that every python project on GitHub should have. Now that actions are available for free on any public repo there is no reason not to use GitHub Actions for any new project.
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