[issue12105] open() does not able to set flags, such as O_CLOEXEC

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

> Python doesn't suppose atomic open+CLOEXEC anymore, I consider this as a
> regression from Python 2 (which support open("re") with the GNU libc).

It has never been documented (nor supported) so, no, I wouldn't consider
it a regression.

> But... it tooks some years until someone noticed this regression.

Which means it's certainly unimportant.

> Can we add new features to old releases?

Well, you already know the answer, don't you? :)

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