uv/docs/guides/publish.md

Publishing a package

uv supports building Python packages into source and binary distributions via uv build and uploading them to a registry with uv publish.

Preparing your project for packaging

Before attempting to publish your project, you'll want to make sure it's ready to be packaged for distribution.

If your project does not include a [build-system] definition in the pyproject.toml, uv will not build it by default. This means that your project may not be ready for distribution. Read more about the effect of declaring a build system in the project concept documentation.

Building your package

Build your package with uv build:

$ uv build

By default, uv build will build the project in the current directory, and place the built artifacts in a dist/ subdirectory.

Alternatively, uv build <SRC> will build the package in the specified directory, while uv build --package <PACKAGE> will build the specified package within the current workspace.

Publishing your package

Publish your package with uv publish:

$ uv publish

Set a PyPI token with --token or UV_PUBLISH_TOKEN, or set a username with --username or UV_PUBLISH_USERNAME and password with --password or UV_PUBLISH_PASSWORD.

!!! info

For publishing to PyPI from GitHub Actions, you don't need to set any credentials. Instead,
[add a trusted publisher to the PyPI project](https://docs.pypi.org/trusted-publishers/adding-a-publisher/).

!!! note

PyPI does not support publishing with username and password anymore, instead you need to
generate a token. Using a token is equivalent to setting `--username __token__` and using the
token as password.

Installing your package

Test that the package can be installed and imported with uv run:

$ uv run --with <PACKAGE> --no-project -- python -c "import <PACKAGE>"

The --no-project flag is used to avoid installing the package from your local project directory.

!!! tip

If you have recently installed the package, you may need to include the
`--refresh-package <PACKAGE>` option to avoid using a cached version of the package.

Next steps

To learn more about publishing packages, check out the PyPA guides on building and publishing.

Or, read on for more details about the concepts in uv.