flake8-pep585

library0.1.7pypypiunverified

A flake8 plugin that enforces the use of new-style type hints as specified in PEP 585 (e.g., list[str] instead of typing.List[str]). Current version 0.1.7 supports Python 3.7+ with configurable activation on older versions. Released periodically.

testing type-stubs

pip install flake8-pep585

github ↗package ↗

INSTALL

IMPORT

SIG · FLAKE8-PEP585

flake8-pep585

testingpythonv0.1.7

Install

1.5s avg

Import

—

Disk

16MB

Pass rate

10/ 10

Env Coverage10 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v0.1.7 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.95 runs

installs and imports cleanly · install 0.0s · import 0.000s · 17.8MB

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 1.5s · import 0.000s · 18MB

16MB installed

● package 16MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

flake8_pep585

✓ Install via pip; no explicit import needed. Add '--require-plugins=flake8-pep585' to flake8 arguments if using flake8>=6.0.

✗ from flake8_pep585 import *

The module name contains a hyphen and cannot be imported directly; it's a flake8 plugin.

Install the plugin and run flake8 on a file with an old-style type hint. The plugin will emit an error (PE P585) suggesting to use list[int] instead of List[int].

pip install flake8 flake8-pep585 cat > test.py <<EOF from typing import List def foo() -> List[int]: return [1, 2] EOF flake8 test.py

Debug

Known issues

gotchaThe plugin only works when flake8 is invoked with the '--require-plugins=flake8-pep585' flag or a compatible configuration if using flake8>=6.0.

fix

Run flake8 with '--require-plugins=flake8-pep585' or configure 'require_plugins = flake8-pep585' in setup.cfg or .flake8.

affects: >=6.0.0 of flake8

gotchaOn Python 3.7 and 3.8, the plugin is disabled by default unless 'from __future__ import annotations' is used. This can be confusing when running CI on multiple Python versions.

fix

Use '--pep585-activation=always' to force enable on Python 3.7/3.8, or add 'from __future__ import annotations' to files.

affects: 0.1.6+

Upgrade

Version history

0.1.7latest on PyPI · released Feb 26, 2023

Audit

Dependencies

flake8requiredThe plugin runs as a flake8 plugin

Agent activity

26 hits · last 30 days

node

OpenAI (training)

Resources

githubhttps://github.com/decorator-factory/flake8-pep585 ↗

packagehttps://pypi.org/project/flake8-pep585/ ↗