Resolution Speed
10–100×
vs pip / pip-tools / poetry
Cold Environment Creation
18 ms
vs 2,800 ms with virtualenv
Disk Storage Strategy
Global Hardlinks
Zero duplicated wheel caches
Tooling Footprint
1 Single Rust Binary
Replaces pip, venv, poetry, flit
Execute these exact commands in your local terminal:
Standards-compliant Python project specification:
| Workflow Dimension | Modern Stack (uv + ruff) | Legacy Stack (pip + venv + poetry) |
|---|---|---|
| Package & Resolver Speed | Instant (Rust Native, 10-100x) | Slow (Python GIL & Backtracking) |
| Python Version Management | Built-in (uv python install 3.12) |
Requires pyenv / asdf / deadsnakes |
| Single-File Scripts | PEP 723 (uv run script.py) |
Manual venv creation & requirements |
| Global Tool Execution | uvx / uv tool run ruff |
Requires pipx installation |
| Linting & Formatting | Ruff (100x faster than flake8/black) | black + isort + flake8 + pylint trio |
| Lockfile Portability | Universal cross-platform uv.lock |
Platform-bound requirements.txt |
Click any uv command below to test simulated execution in real time:
$uv --version
uv 0.5.11 (01a9b9c48 2026-03-01) — modern python packaging in rust
$# Click any chip above to simulate instant execution
🚀 1. Fast Environments
Never manually activate virtual environments again. uv run automatically isolates, creates, and caches the environment without activating.
uv run python main.py
📦 2. Script Inline Dependencies
Share a single self-contained Python file with declared requirements. Run it anywhere without pre-installing dependencies.
uv run --script automation.py
⚡ 3. Lightning Linters
Ruff combines Black, isort, Flake8, and pydocstyle into one Rust tool that runs in milliseconds across millions of lines.
uv run ruff check --fix