Managing packages

Installing a package

To install a package into the virtual environment, e.g., Flask:

$ uv pip install flask

To install a package with optional dependencies enabled, e.g., Flask with the "dotenv" extra:

$ uv pip install "flask[dotenv]"

To install multiple packages, e.g., Flask and Ruff:

$ uv pip install flask ruff

To install a package with a constraint, e.g., Ruff v0.2.0 or newer:

$ uv pip install 'ruff>=0.2.0'

To install a package at a specific version, e.g., Ruff v0.3.0:

$ uv pip install 'ruff==0.3.0'

To install a package from the disk:

$ uv pip install "ruff @ ./projects/ruff"

To install a package from GitHub:

$ uv pip install "git+https://github.com/astral-sh/ruff"

To install a package from GitHub at a specific reference:

$ # Install a tag
$ uv pip install "git+https://github.com/astral-sh/[email protected]"

$ # Install a commit
$ uv pip install "git+https://github.com/astral-sh/ruff@1fadefa67b26508cc59cf38e6130bde2243c929d"

$ # Install a branch
$ uv pip install "git+https://github.com/astral-sh/ruff@main"

See the Git authentication documentation for installation from a private repository.

Editable packages

Editable packages do not need to be reinstalled for change to their source code to be active.

To install the current project as an editable package

$ uv pip install -e .

To install a project in another directory as an editable package:

$ uv pip install -e ruff @ ./project/ruff

Installing packages from files

Multiple packages can be installed at once from standard file formats.

Install from a requirements.txt file:

$ uv pip install -r requirements.txt

See the uv pip compile documentation for more information on requirements.txt files.

Install from a pyproject.toml file:

$ uv pip install -r pyproject.toml

Install from a pyproject.toml file with optional dependencies enabled, e.g., the "foo" extra:

$ uv pip install -r pyproject.toml --extra foo

Install from a pyproject.toml file with all optional dependencies enabled:

$ uv pip install -r pyproject.toml --all-extras

Uninstalling a package

To uninstall a package, e.g., Flask:

$ uv pip uninstall flask

To uninstall multiple packages, e.g., Flask and Ruff:

$ uv pip uninstall flask ruff