Create acronyms from sentences
This is a toy package we created together on Twitch on 2022-01-26 as a way to talk about some of what people can learn in Publishing Python Packages: Test, share, and automate your projects and the corresponding code companion.
- asdf: Install base versions of various language runtimes
- python-launcher: A convenient way to run the Python you mean. Not strictly necessary, but very convenient (semi-ported behavior from Windows Python).
- pipx: Install command-line interface tools for global use.
- build: A PEP 517-compliant package build tool from PyPA.
- tox: Testing and task management tool extraordinaire.
- pytest: A nicer way of unit testing.
- black: Format your code consistently.
- mypy: Check your code for type errors.
- flake8: Check your code for common bugs.
- cookiecutter: Create reusable project templates.
| Command | Purpose / explanation |
|---|---|
py -3.10 -m venv .venv |
Using python-launcher, find the Python 3.10 base version and use its venv module to create a virtual environment in a .venv/ directory. |
py -m pip install -r requirements.txt |
Using python-launcher to automatically pick up the copy of Python in .venv/, use that Python's pip module to install requirements into the virtual environment. |
pyproject-build . |
Using build, build the current directory as a package using the PEP 517 approach. |
tox |
Run the default environment(s) specified in tox's envlist. You can also run them explicitly with tox -e py310, as an example. |
tox -e format |
Run the format environment |
- More detail on all of what we did cover, with some extra tips and tricks
- Creating non-Python extensions in C using Cython
- Creating command-line interfaces as packages
- Creating and automating documentation
- Automating testing and code quality with GitHub Actions
- Extracting a project template with cookiecutter
- Starting an effective community for your project
The issue with tox -e typecheck at the end turned out to be because we were packaging up the dist/ directory we created by running pyproject-build. This is where the MANIFEST.in file is helpful, because it can filter out files you don't want in your package. I typically include the following in my MANIFEST.in, which only includes files inside the src/ directory and excludes some generated files:
graft src
recursive-exclude __pycache__ *.py[cod]
Even after that, type checking failed because we had added mypy . as the command -- this ends up trying to type check setup.py, which imports setuptools, which has no type hints available. Updating the command to mypy --ignore-missing-imports . fixes the issue, or you can update to only check your source code and tests with mypy src tests.
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