flake8
Wraps pycodestyle, pyflakes, and McCabe complexity into a single command-line linter with a plugin system.
linting-and-formatting-frameworksInactive
71
Hero Score
Popularity
64
Performance
30
Ecosystem
100
Maturity
85
Dev Experience
75
⭐ 3,794 stars⬇ 10.7M downloads/wkFirst release: Aug 2010Last release: Jun 2025
Async Support: NoPlugin Extensions: Very highSpeed: MediumDoc Quality: HighLearning Curve: Easy
Pros
- • Huge plugin ecosystem (flake8-bugbear, flake8-comprehensions, flake8-docstrings, and many more) for tailored rule sets
- • Lightweight, predictable, and well-understood — a long-standing default in Python projects and CI pipelines
- • Combines style, error, and complexity checks in one command without deep static inference overhead
Cons
- • Significantly slower than Ruff, which reimplements most flake8 rules in Rust
- • No autofix support — only reports issues, leaving fixes manual or to other tools
- • Configuration is split across setup.cfg/tox.ini conventions that feel dated next to pyproject.toml-native tools