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fix(toolchains): mark the python extension os- and arch-dependent #4259

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Merged
aignas merged 1 commit into from
Oct 13, 2026
Merged

fix(toolchains): mark the python extension os- and arch-dependent #4259

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3 changes: 3 additions & 0 deletions news/python-ext-os-arch-dependent.fixed.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
(toolchains) The `python` extension is re-evaluated when the host OS or CPU
changes, so an output base shared between hosts no longer fails to fetch the
`*_host` interpreter repo.
2 changes: 2 additions & 0 deletions python/private/python.bzl
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Expand Up @@ -1624,6 +1624,8 @@ python = module_extension(
"toolchain": _toolchain,
},
environ = ["RULES_PYTHON_BZLMOD_DEBUG"],
os_dependent = True,
arch_dependent = True,
)

_DEBUG_BUILD_CONTENT = """
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