8000 Support free threaded Python versions like '3.13t' by colesbury · Pull Request #973 · actions/setup-python · GitHub
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Support free threaded Python versions like '3.13t' #973

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Merged
merged 11 commits into from
Mar 4, 2025
Merged

Support free threaded Python versions like '3.13t' #973

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eb2a653
Support free threaded Python versions like '3.13t'
colesbury Oct 28, 2024
c70f76e
Add free threading to advanced usage documentation
colesbury Jan 22, 2025
d653c0b
Fix desugaring of `3.13.1t` and add test case.
colesbury Jan 22, 2025
72902a0
Add freethreaded input and fix handling of prerelease versions
colesbury Jan 30, 2025
3794e54
Fix lint
colesbury Jan 31, 2025
1ec1b0d
Add 't' suffix to python-version output
colesbury Feb 5, 2025
8f1f09d
Use distinct cache key for free threaded Python
colesbury Feb 10, 2025
bdd8c56
Remove support for syntax like '3.14.0a1'
colesbury Feb 10, 2025
1971406
Clarify use of 't' suffix
colesbury Feb 14, 2025
0681a6b
Improve error message when trying to use free threaded Python version…
colesbury Feb 14, 2025
77cd01c
Merge branch 'main' into freethreading
colesbury Feb 19, 2025
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Add free threading to advanced usage documentation
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@colesbury
colesbury committed Jan 22, 2025
commit c70f76ebc5899ddfa563913ad6ee343ab2e88624
10 changes: 10 additions & 0 deletions README.md
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Expand Up @@ -45,6 +45,16 @@ steps:
- run: python my_script.py
```

**Free threaded Python**
```yaml
steps:
- uses: actions/checkout@v4
- uses: actions/setup-python@v5
with:
python-version: '3.13t'
- run: python my_script.py
```

The `python-version` input is optional. If not supplied, the action will try to resolve the version from the default `.python-version` file. If the `.python-version` file doesn't exist Python or PyPy version from the PATH will be used. The default version of Python or PyPy in PATH varies between runners and can be changed unexpectedly so we recommend always setting Python version explicitly using the `python-version` or `python-version-file` inputs.

The action will first check the local [tool cache](docs/advanced-usage.md#hosted-tool-cache) for a [semver](https://github.com/npm/node-semver#versions) match. If unable to find a specific version in the tool cache, the action will attempt to download a version of Python from [GitHub Releases](https://github.com/actions/python-versions/releases) and for PyPy from the official [PyPy's dist](https://downloads.python.org/pypy/).
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14 changes: 14 additions & 0 deletions docs/advanced-usage.md
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Expand Up @@ -77,6 +77,20 @@ steps:
- run: python my_script.py
```

Use the **t** suffix to select the [free threading](https://docs.python.org/3/howto/free-threading-python.html) version of Python.
Free threaded Python is only available starting with the 3.13 release.

```yaml
steps:
- uses: actions/checkout@v4
- uses: actions/setup-python@v5
with:
python-vers 536F ion: '3.13t'
- run: python my_script.py
```

Pre-release free threading versions should be specified like `3.14.0ta3` or `3.14t-dev`.

You can also use several types of ranges that are specified in [semver](https://github.com/npm/node-semver#ranges), for instance:

- **[ranges](https://github.com/npm/node-semver#ranges)** to download and set up the latest available version of Python satisfying a range:
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