[Python-Dev] Re: PEP 689 – Semi-stable C API tier

2022年4月29日 16:28:57 -0700

On 4/29/2022 11:42 AM, Stephen J. Turnbull wrote:
MRAB writes:
 > On 2022年04月29日 18:02, Guido van Rossum wrote:
 > > On Fri, Apr 29, 2022 at 10:15 AM Petr Viktorin <[email protected]
 > > <mailto:[email protected]>> wrote:
 > >
 > > On 29. 04. 22 16:32, Victor Stinner wrote:
 > > > Ok, let me start with the serious business: API name.
 > > >
 > > > I'm not comfortable with "semi-stable". Python already has a 
"limited
 > > > API" and a "stable ABI". Just by its name, it's unclear what
 > > > "semi-stable" means.
 > > >
 > > > Honestly, I would be more comfortable with the name: "unstable 
API".
 > > > It would be clear that the API *can* change often. People who want 
to
 > > > know exactly the backward compatibility warranties can dig into the
 > > > API documentation to learn more about it.
 > > >
 > > > "Unstable API" is also the name the Guido proposed for
 > > PyCode_New() last year:
 > > >
 > > > * Proposal: declare "unstable APIs"
 > > >
 > > 
https://mail.python.org/archives/list/[email protected]/thread/JM6SQ2YNMDAKXYD5O54QWMVR2X7QOXVL/
 > > 
<https://mail.python.org/archives/list/[email protected]/thread/JM6SQ2YNMDAKXYD5O54QWMVR2X7QOXVL/>
 > > > * Making code object APIs unstable
 > > >
 > > 
https://mail.python.org/archives/list/[email protected]/thread/ZWTBR5ESYR26BUIVMXOKPFRLGGYDJSFC/
 > > 
<https://mail.python.org/archives/list/[email protected]/thread/ZWTBR5ESYR26BUIVMXOKPFRLGGYDJSFC/>
 > > >
 > > > Victor
 > >
 > >
 > > Nick Coghlan argued against that term:
 > >
 > > > "unstable" is the wrong term. We already have an unstable API
 > > tier: the
 > > > internal API, which can change even in maintenance releases. The
 > > value of
 > > > the new tier is that it is "semi stable": stable in maintenance
 > > releases,
 > > > unstable in feature releases.
 > >
 > > —
 > > 
https://mail.python.org/archives/list/[email protected]/message/CTKKTHUV5R2A2RRN5DM32UQFNC42DDGJ/
 > > 
<https://mail.python.org/archives/list/[email protected]/message/CTKKTHUV5R2A2RRN5DM32UQFNC42DDGJ/>
 > >
 > >
 > > But I also like "unstable" better than "semi-stable". Splitting the
 > > internals into "private"/"internal" and "unstable" seems reasonable.
 > >
 > >
 > > I think picking "semi-stable" would be giving in to the OCD nerd in all
 > > of us. :-) While perhaps technically less precise, "unstable" is the
 > > catchy name with the right association. (And yes, we should keep it
 > > stable within bugfix releases, but the name doesn't need to reflect that
 > > detail.) The "internal API" isn't an API at all (except for CPython core
 > > developers and contributors). The "unstable API" would definitely be an
 > > *API* for users outside the core.
 > >
 > > So let's please go with "unstable".
 > >
 > I was going to suggest "metastable". Too late? :-)
 A
Bikeshedding to a new level! --+
Metabikeshedding...
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