[Python-Dev] PEP 446: Open issues/questions
victor.stinner at gmail.com
Fri Aug 2 13:23:11 CEST 2013
Le 2 août 2013 08:32, "Charles-François Natali" <cf.natali at gmail.com> a
> 2013/8/2 Victor Stinner <victor.stinner at gmail.com>:
> > 2013/7/28 Antoine Pitrou <solipsis at pitrou.net>:
> >>> (A) How should we support support where os.set_inheritable() is not
> >>> supported? Can we announce that os.set_inheritable() is always
> >>> available or not? Does such platform exist?
> >> FD_CLOEXEC is POSIX:
> >> http://pubs.opengroup.org/onlinepubs/9699919799/functions/fcntl.html
> > Ok, but this information does not help me. Does Python support
> > non-POSIX platforms? (Windows has HANDLE_FLAG_INHERIT.)
> > If we cannot answer to my question, it's safer to leave
> > os.get/set_inheritable() optional (need hasattr in tests for example).
> On Unix platforms, you should always have FD_CLOEXEC.
> If there were such a platform without FD inheritance support, then it
> would probably make sense to make it a no-op
Ok, and os.get_inheritable() can also always return False.
It would prefer to fail with a compiler error is the platform is unknown. A
platform might support FD inheritance, but with something different than
fcntl() or ioctl() (ex: Windows).
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