flake8-pep604 0.1.0

flake8 plugin to enforce use of `|` over `typing.Union`

flake8-pep604

flake8 plugin which forbids use of typing.Union (in favour of |), per PEP 604.

Note the | notation is a syntax error for Python < 3.10. In this case you can use the annotations feature (see PEP 563).

flake8 Codes

Code	Description
UNT001	Use | in place of typing.Union. See PEP-604

Motivation

Motivated by just wanting to make a codebase consistent in usage between typing.Union and union types.

Development

Get started by installing everything in a virtualenv

$ python -m .venv venv
$ pip install --requirement requirements-dev.txt
$ pre-commit install

Then testing:

$ pytest

And linting:

$ pre-commit run --all-files