[Python-Dev] Intent to accept PEP 561 -- Distributing and Packaging Type Information

[Guido van Rossum]

Well, with that, I am hereby accepting PEP 561.

Ethan has done a tremendous job writing this PEP and implementing it, and I
am sure that package and stub authors will be very glad to hear that there
are now officially supported ways other than typeshed to distribute type
annotations.

Congrats Ethan!

--Guido

On Mon, Jun 25, 2018 at 12:15 PM Guido van Rossum <guido at python.org> wrote:

> OK, last call! I'll accept the current draft tomorrow unless someone
> pushes back.
>
> On Fri, Jun 22, 2018 at 8:37 AM Nick Coghlan <ncoghlan at gmail.com> wrote:
>
>> On 23 June 2018 at 01:16, Guido van Rossum <guido at python.org> wrote:
>> > That sounds like you're supporting PEP 561 as is, right?
>>
>> Aye, I'm personally fine with it - we do need to do something about
>> automatically reserving the derived names on PyPI, but I don't think
>> that's a blocker for the initial PEP acceptance (instead, it will go
>> the other way: PEP acceptance will drive Warehouse getting updated to
>> handle the convention already being adopted by the client tools).
>>
>> > Excuse my
>> > ignorance, but where are API testing stub interfaces described or used?
>>
>> They're not - it's just the context for Donald referring to "stubs" as
>> being a general technical term with other meanings beyond the "type
>> hinting stub file" one.
>>
>> As such, there's three parts to explaining why we're not worried about
>> the terminology clash:
>>
>> - Ethan searched for projects called "*-stubs" or "*_stubs" and didn't
>> find any, so the practical impact of any terminology clash will be low
>> - there isn't an established need to automatically find testing stub
>> libraries based on an existing project name the way there is for type
>> hints
>> - even if such a need did arise in the future, the "py.typed" marker
>> file and the different file extension for stub files within a package
>> still gives us an enormous amount of design flexibility
>>
>> Cheers,
>> Nick.
>>
>> --
>> Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia
>>
>
>
> --
> --Guido van Rossum (python.org/~guido)
>


-- 
--Guido van Rossum (python.org/~guido)
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