Running ruff against our entire codebase takes. Our largest module (dagster itself, 250k LOC) pylint takes about 2.5 minutes, parallelized across 4Ĭores on my M1. Why is Ruff a gamechanger? Primarily because it is nearly 1000x faster. Ruff is so fast that sometimes I add an intentional bug in the code just to confirm it's actually Ruff is extremely actively developed and used in major open-source projects like: Ruff can be used to replace Flake8 (plus dozens of plugins),Īll while executing tens or hundreds of times faster than any individual tool. Ruff aims to be orders of magnitude faster than alternative tools while integrating moreįunctionality behind a single, common interface. 🌎 Monorepo-friendly, with hierarchical and cascading configuration.⌨️ First-party editor integrations for VS Code and more.

🔌 Native re-implementations of dozens of Flake8 plugins, like flake8-bugbear.⚖️ Near-parity with the built-in Flake8 rule set.🔧 Autofix support, for automatic error correction (e.g., automatically remove unused imports).📦 Built-in caching, to avoid re-analyzing unchanged files.⚡️ 10-100x faster than existing linters.Linting the CPython codebase from scratch. An extremely fast Python linter, written in Rust.

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