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The module was compiled as posix or nt depending on the platform. Build it as `_os` everywhere with a single `PyInit__os`. Keep the historical names available for compatibility backed by the same init function so sys.builtin_module_names, find_spec() and loading it by hand (as LazyLoader does). Freeze skips posix and nt when writing its config.c, since the inittab templates already map them to PyInit__os. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
cmaloney
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AA-Turner,
FFY00,
brettcannon,
emmatyping,
ericsnowcurrently,
erlend-aasland,
itamaro,
ncoghlan and
warsaw
as code owners
November 12, 2026 21:50
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The module was compiled as posix or nt depending on the platform. Build it as
_oseverywhere with a singlePyInit__os. Keep the historical names available for compatibility backed by the same init function so sys.builtin_module_names, find_spec() and loading it by hand (as LazyLoader does) keep working.Freeze skips posix and nt when writing its config.c, since the inittab templates already map them to PyInit__os.