gh-113117: Support posix_spawn in subprocess.Popen with close_fds=True #113118
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Gives a more useful description and mentions that it can be turned off but that we'd like to hear from anyone doing so.
(the joys of using the github web editor)
This describes the module changes in module sections and makes the Optimizations section brief, referring back up to the subprocess module.
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…ds=True (python#113118) Add support for `os.POSIX_SPAWN_CLOSEFROM` and `posix_spawn_file_actions_addclosefrom_np` and have the `subprocess` module use them when available. This means `posix_spawn` can now be used in the default `close_fds=True` situation on many platforms. Co-authored-by: Gregory P. Smith [Google LLC] <greg@krypto.org>
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…ds=True (python#113118) Add support for `os.POSIX_SPAWN_CLOSEFROM` and `posix_spawn_file_actions_addclosefrom_np` and have the `subprocess` module use them when available. This means `posix_spawn` can now be used in the default `close_fds=True` situation on many platforms. Co-authored-by: Gregory P. Smith [Google LLC] <greg@krypto.org>
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📚 Documentation preview 📚: https://cpython-previews--113118.org.readthedocs.build/