ruff

ruff is an Python linter and code formatter written in Rust. Created by Astral (the makers of uv), ruff aims to replace multiple Python code quality tools (like flake8, black, isort, and pyupgrade) with a single high-performance solution.

Key Features

• Linting: Checks code for errors, style violations, and potential problems
• Formatting: Automatically formats code to follow style conventions
• Import Sorting: Orders and groups Python imports systematically
• Code Upgrades: Modernizes Python code syntax automatically
• Configuration: Uses standard pyproject.toml for settings

Core Capabilities

Linting Rules

• Style checking (PEP 8)
• Error detection
• Complexity checking
• Best practice enforcement
• Type annotation validation
• Documentation checking

Performance

• Written in Rust for exceptional speed
• ~100x faster than traditional Python tools
• Parallel processing for large codebases
• Incremental checking for changed files
• Caching of results

Integration

• IDE plugins for real-time feedback
• CI/CD pipeline support
• Pre-commit hook integration
• Command line interface
• Language server protocol support

Advantages

• Single tool replacing many others
• Exceptional performance
• Active development and community
• Standardized configuration
• IDE integration

Limitations

• Some advanced Python static analysis features are still in development
• May require an adjustment period for teams used to multiple tools

Learn More

• ruff Documentation
• GitHub Repository
• Configuration Guide
• Rules Reference