2013/1/7 Gregory P. Smith <g...@krypto.org>:
>
>
>
> On Mon, Jan 7, 2013 at 4:03 PM, Benjamin Peterson <benja...@python.org>
> wrote:
>>
>> 2013/1/7 Victor Stinner <victor.stin...@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?
>>
>> 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.
>
>
> The ability to supply such flags really belongs on _all_ high or low level
> file descriptor creating APIs so that things like subprocess_cloexec_pipe()
> would not be necessary:
> http://hg.python.org/cpython/file/0afa7b323abb/Modules/_posixsubprocess.c#l729

I think the open() interface should have consistent and
non-conditional support features to the maximum extent possible. The
recent addition of "x" is a good example I think. The myriad cloexec
APIs between different platforms suggests to me that using this
features requires understanding its various quirks on different
platforms.



-- 
Regards,
Benjamin
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