[Python-Dev] Add "e" (close and exec) mode to open()

[Zbigniew Jędrzejewski-Szmek]

On Mon, Jan 07, 2013 at 06:03:54PM -0600, Benjamin Peterson wrote:
> 2013/1/7 Victor Stinner <victor.stinner at gmail.com>:
> > Hi,
> >
> > I would like add a new flag to open() mode to close the file on exec:
> > "e". This feature exists using different APIs depending on the OS and
> > OS version: O_CLOEXEC, FD_CLOEXEC and O_NOINHERIT. Do you consider
> > that such flag would be interesting?
Having close-on-exec makes the code much cleaner, often. Definitely
interesting.

> I'm not sure it's worth cluttering the open() interface with such a
> non-portable option. People requiring such control should use the
> low-level os.open interface.
If the best-effort fallback is included, it is quite portable. Definitely
all modern and semi-modern systems support either the atomic or the
nonatomic methods.

Zbyszek