Poetry

"Python packing and dependency management made easy"

Also, see UV.

Docs

Install / Upgrade

# install specific version
# (also replacing any currently-installed version)
curl -sSL https://install.python-poetry.org | python3 - --version 1.8.5

# upgrade to specific version
poetry self update 1.8.5

# upgrade to prerelease
poetry self update --preview

# uninstall
curl -sSL https://install.python-poetry.org | python3 - --uninstall