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Enforce usage of built-in types in typing.

See original GitHub issue

Rule request

Python 3.9 introduced support for PEP585 which discourages usage of the typing.List, typing.Tuple, etc. in favor of the built-in types.

Thesis

The usage of the built-in generics should be encouraged. The usage of the generics from the typing module should be blocked by a rule, when using Python 3.9+ versions.

Reasoning

I think that having two different ways to denote those types does not comply with the “There should be one – and preferably only one – obvious way to do it” rule.

Issue Analytics

State:
Created a year ago
Comments:8 (5 by maintainers)

Top GitHub Comments

1reaction

sobolevncommented, Jul 31, 2022

Great! Also check out https://github.com/python/typeshed/blob/master/tests/check_new_syntax.py

0reactions

Waszkercommented, Jul 31, 2022

@sobolevn I’ve already prepared and released the first version of the plugin that takes care of the checks from this issue and https://github.com/wemake-services/wemake-python-styleguide/issues/2421

Link: https://github.com/Waszker/flake-type-annotations-plugin

The project is in its early stages but I was too excited to release it that I’ve forgot to ask for your review. 😞

Nevertheless feel free to take a look at it and I think that we can close this issue, the https://github.com/wemake-services/wemake-python-styleguide/issues/2421 one and its related PR.

What do you think?

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