[Python-Dev] [Python-checkins] cpython (3.3): Add -b and -X options to python man page.

[Maciej Fijalkowski]

On Mon, Jun 24, 2013 at 10:56 PM, Antoine Pitrou <solipsis at pitrou.net> wrote:
> On Mon, 24 Jun 2013 16:43:15 -0400
> "R. David Murray" <rdmurray at bitdance.com> wrote:
>> On Mon, 24 Jun 2013 22:14:46 +0200, Maciej Fijalkowski <fijall at gmail.com> wrote:
>> > On Sun, Jun 23, 2013 at 6:14 PM, R. David Murray <rdmurray at bitdance.com> wrote:
>> > > On Sun, 23 Jun 2013 17:40:13 +0200, Maciej Fijalkowski <fijall at gmail.com> wrote:
>> > >> On Thu, Jun 20, 2013 at 3:36 PM, Brett Cannon <brett at python.org> wrote:
>> > >> > On Wed, Jun 19, 2013 at 11:20 PM, senthil.kumaran
>> > >> > <python-checkins at python.org> wrote:
>> > >> >>  .TP
>> > >> >> +.BI "\-X " option
>> > >> >> +Set implementation specific option.
>> > >> >
>> > >> >
>> > >> > Should probably be "Set the implementation-specific option."
>> > >>
>> > >> Is there anyone respecting this notation? (I know pypy does not, it
>> > >> uses --jit and stuff)
>> > >
>> > > CPython does.  We introduced it for ourselves, it is up to other
>> > > implementations whether or not to use it, or use something else.
>> > >
>> > > --David
>> >
>> > you mean "CPython does not have any implementation-specific options"?
>> > I would claim -O behavior should be implementation-specific since it's
>> > nonsense in the optimizations sense, but other than that, it does not
>> > seem that there is any -X options?
>>
>> There is one.  -X faulthandler.  I'm sure others would agree about
>> -O, but that long predates -X.
>>
>> So, the idea is that -X *can* be used by other implementations for their
>> own purposes, but there is certainly no requirement that they do so.
>> Our promise is that anything CPython uses it for is something we don't
>> expect other implementations to support.
>
> Yes, basically -X is a private namespace for every implementation to
> use as it sees fit without fearing of conflicting with a future
> cross-implementation option.
>
> Regards
>
> Antoine.

I'm for one looking forward to the day where cpython conflicts on --jit ;-)