uv — Python Package Manager 2026

Why uv in 2026

uv is the community consensus default for new Python projects in 2026:

• Written in Rust — 10–100x faster than pip
• Single binary: replaces pip + pip-tools + pyenv + virtualenv + pipx + Poetry (for apps)
• Global content-addressable cache — packages downloaded once, shared across projects
• Lockfile support (uv.lock) — reproducible environments
• Native pyproject.toml support (PEP 517/518)

Installation

# On any Linux/Mac (VPS, Docker, CI)
# ⚠️  Always pin the version — never pipe an unpinned URL to sh.
curl -LsSf https://astral.sh/uv/0.10.7/install.sh | sh

# Verify
uv --version   # expect 0.10.7