Ruff - Python Linter Written in Rust

Ruff is an extremely fast Python linter written in Rust, 10-100x faster than existing tools.

GitHub

https://github.com/astral-sh/ruff

Key Benefits

1. Extreme Speed

10-100x faster than Flake8

20-50x faster than isort

30-60x faster than Black

2. All-in-One Tool

Replaces multiple tools:

Flake8 (linting)

isort (import sorting)

pydocstyle (docstring checking)

pyupgrade (modernize Python code)

And more

3. Compatibility

Full PEP 8 compliance

600+ rules supported

Configurable ruleset

Installation

ash
pip install ruff

or with uv

uv pip install ruff

Usage

ash

Check files

ruff check file.py

Check entire project

ruff check .

Auto-fix

ruff check --fix .

Format code

ruff format file.py

Configuration

Create pyproject.toml:

oml
[tool.ruff]
line-length = 88
target-version = "py38"

[tool.ruff.lint]
select = ["E", "F", "I"]
ignore = ["E501"]


Performance

| Tool | Django codebase check time |
|------|--------------------------|
| Flake8 | 40 seconds |
| Ruff | 0.5 seconds |
| Speedup | 80x |

Why Ruff?

Save significant time

Unified toolchain

Active development (Astral team)

Continuous updates

Summary

Ruff is essential for Python development. If you're using Flake8, migrate to Ruff today!

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Rating: 猸愨瓙猸愨瓙猸?
Best for: Python projects
Learning curve: 猸愨瓙猸?