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doc: Add a snippet on how people can use 3.8 now onwards #3502

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rickeylev merged 1 commit into from
Jan 10, 2026
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doc: Add a snippet on how people can use 3.8 now onwards #3502

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17 changes: 17 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -87,6 +87,23 @@ END_UNRELEASED_TEMPLATE
to pass the `TOOL_VERSIONS` that include 3.8 toolchains or use the `bzlmod` APIs to add
them back. This means any hub `pip.parse` calls that target `3.8` will be ignored from
now on. ([#2704](https://github.com/bazel-contrib/rules_python/issues/2704))
{object}`python.single_version_override`, like:

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The example snippet uses a non-existent Python version (3.8.20) and a future release date for python-build-standalone. This could be confusing for users who try to copy-paste it. To avoid confusion, it would be helpful to add a note clarifying that the values are placeholders and need to be replaced with actual ones from a python-build-standalone release.

Suggested change
> **Note**: The following snippet uses placeholder values. Please use a real Python 3.8.x version, URL, and hashes from [python-build-standalone releases](https://github.com/astral-sh/python-build-standalone/releases).

```starlark
python = use_extension("@rules_python//python/extensions:python.bzl", "python")

python.single_version_override(
python_version = "3.8.20",
sha256 = {
"aarch64-apple-darwin": "2ddfc04bdb3e240f30fb782fa1deec6323799d0e857e0b63fa299218658fd3d4",
"aarch64-unknown-linux-gnu": "9d8798f9e79e0fc0f36fcb95bfa28a1023407d51a8ea5944b4da711f1f75f1ed",
"x86_64-apple-darwin": "68d060cd373255d2ca5b8b3441363d5aa7cc45b0c11bbccf52b1717c2b5aa8bb",
"x86_64-pc-windows-msvc": "41b6709fec9c56419b7de1940d1f87fa62045aff81734480672dcb807eedc47e",
"x86_64-unknown-linux-gnu": "285e141c36f88b2e9357654c5f77d1f8fb29cc25132698fe35bb30d787f38e87",
},
urls = ["https://github.com/astral-sh/python-build-standalone/releases/download/20241002/cpython-{python_version}+20241002-{platform}-{build}.tar.gz"],
)
```
* (toolchain) Remove all of the python 3.9 toolchain versions except for the `3.9.25`.
This version has reached EOL and will no longer receive any security fixes, please update to
`3.10` or above. ([#2704](https://github.com/bazel-contrib/rules_python/issues/2704))
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