Ruff Linting

Ruff is an extremely fast Python linter designed as a drop-in replacement for Flake8 (plus dozens of plugins), isort, pydocstyle, pyupgrade, autoflake, and more. Written in Rust, it offers 10-100x performance improvements over traditional Python linters.

Overview

Ruff provides a single CLI for linting with optional auto-fix. It supports an extensive rule set with 800+ built-in rules and integrates cleanly with pre-commit, CI systems, and modern editors.

Key Features

• Extremely Fast: 10-100x faster than Flake8, Black, isort
• Drop-in Replacement: Compatible with existing Flake8 plugins and configurations
• Auto-fix Support: Automatically fix many common issues
• Comprehensive Rules: 800+ built-in rules from popular linters
• Single Tool: Replaces flake8, isort, pyupgrade, autoflake, pydocstyle, and more

When to Use