setuptools-scm

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about

setuptools-scm extracts Python package versions from git or hg metadata instead of declaring them as the version argument or in a Source Code Managed (SCM) managed file.

Additionally setuptools-scm provides setuptools with a list of files that are managed by the SCM
(i.e. it automatically adds all the SCM-managed files to the sdist).
Unwanted files must be excluded via MANIFEST.in or configuring Git archive.

⚠️ Important: Installing setuptools-scm automatically enables a file finder that includes all SCM-tracked files in your source distributions. This can be surprising if you have development files tracked in Git/Mercurial that you don't want in your package. Use MANIFEST.in to exclude unwanted files. See the documentation for details.

pyproject.toml usage

The preferred way to configure setuptools-scm is to author settings in a tool.setuptools_scm section of pyproject.toml.

This feature requires setuptools 61 or later (recommended: >=80 for best compatibility). First, ensure that setuptools-scm is present during the project's build step by specifying it as one of the build requirements.

[build-system]
requires = ["setuptools>=80", "setuptools-scm>=8"]
build-backend = "setuptools.build_meta"

That will be sufficient to require setuptools-scm for projects that support PEP 518 like pip and build.

To enable version inference, you need to set the version dynamically in the project section of pyproject.toml:

[project]
# version = "0.0.1"  # Remove any existing version parameter.
dynamic = ["version"]

[tool.setuptools_scm]

!!! note "Simplified Configuration"

Starting with setuptools-scm 8.1+, if `setuptools_scm` (or `setuptools-scm`) is
present in your `build-system.requires`, the `[tool.setuptools_scm]` section
becomes optional! (In 9.2+, this requires the `simple` extra.) You can now
enable setuptools-scm with just:

```toml title="pyproject.toml"
[build-system]
requires = ["setuptools>=80", "setuptools-scm[simple]>=9.2"]
build-backend = "setuptools.build_meta"

[project]
dynamic = ["version"]
```

The `[tool.setuptools_scm]` section is only needed if you want to customize
configuration options.

Additionally, a version file can be written by specifying:

[tool.setuptools_scm]
version_file = "pkg/_version.py"

Where pkg is the name of your package.

If you need to confirm which version string is being generated or debug the configuration, you can install setuptools-scm directly in your working environment and run:

$ python -m setuptools_scm
# To explore other options, try:
$ python -m setuptools_scm --help

For further configuration see the documentation.

Interaction with Enterprise Distributions

Some enterprise distributions like RHEL7 ship rather old setuptools versions.

In those cases its typically possible to build by using an sdist against setuptools-scm<2.0. As those old setuptools versions lack sensible types for versions, modern setuptools-scm is unable to support them sensibly.

It's strongly recommended to build a wheel artifact using modern Python and setuptools, then installing the artifact instead of trying to run against old setuptools versions.

!!! note "Legacy Setuptools Support" While setuptools-scm recommends setuptools >=80, it maintains compatibility with setuptools 61+ to support legacy deployments that cannot easily upgrade. Support for setuptools <80 is deprecated and will be removed in a future release. This allows enterprise environments and older CI/CD systems to continue using setuptools-scm while still encouraging adoption of newer versions.

Code of Conduct

Everyone interacting in the setuptools-scm project's codebases, issue trackers, chat rooms, and mailing lists is expected to follow the PSF Code of Conduct.

Security Contact

To report a security vulnerability, please use the Tidelift security contact. Tidelift will coordinate the fix and disclosure.

Project links

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Credits

Author: Ronny Pfannschmidt

GitHub Statistics

Data verified by PyPI on Sep 3, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License

MIT

Requires

Python >=3.8

Provides Extra

rich simple toml

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