[Distutils] The PEP 426 defined metadata version will be metadata 3.0

[Daniel Holth]

No PEP describes how METADATA supports setuptools' extras.

On Thu, Feb 27, 2014 at 9:17 AM, Donald Stufft <donald at stufft.io> wrote:
>
> On Feb 27, 2014, at 9:16 AM, Daniel Holth <dholth at gmail.com> wrote:
>
>> Yes, but the METADATA version of the metadata is not a standard.
>>
>> On Thu, Feb 27, 2014 at 9:14 AM, Donald Stufft <donald at stufft.io> wrote:
>>>
>>> On Feb 27, 2014, at 9:13 AM, Daniel Holth <dholth at gmail.com> wrote:
>>>
>>>> I don't think it matters which number we use in the METADATA key/value
>>>> metadata... it's not even checked by anything.
>>>>
>>>> On Thu, Feb 27, 2014 at 7:16 AM, Nick Coghlan <ncoghlan at gmail.com> wrote:
>>>>> On 27 February 2014 18:16, Vinay Sajip <vinay_sajip at yahoo.co.uk> wrote:
>>>>>>> but my question was what are you adding, if anything,
>>>>>>> that warranted it having "Metadata-Version: 2.0"?
>>>>>>
>>>>>> I believe that the fields 'Private-Version', 'Obsoleted-By',
>>>>>> 'Setup-Requires-Dist',
>>>>>> 'Extension' and 'Provides-Extra' were added on top of the 1.2 metadata in an
>>>>>> early version of PEP 426, before the move to JSON.
>>>>>
>>>>> For the record,
>>>>> http://hg.python.org/peps/file/3b67372b39ba/pep-0426.txt is the last
>>>>> version prior to the switch to JSON, and the summary of differences is
>>>>> at http://hg.python.org/peps/file/3b67372b39ba/pep-0426.txt#l1263
>>>>>
>>>>> At that time, I think wheel still had a dependency on PEP 426 -
>>>>> changing wheels to work with the setuptools metadata was a relatively
>>>>> late change after we realised it made sense to decouple the two
>>>>> activities.
>>>>>
>>>>> Cheers,
>>>>> Nick.
>>>>>
>>>>> --
>>>>> Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia
>>>> _______________________________________________
>>>> Distutils-SIG maillist  -  Distutils-SIG at python.org
>>>> https://mail.python.org/mailman/listinfo/distutils-sig
>>>
>>> Compliance to standards matter. It's how you get reasonable interoperability.
>>>
>>> -----------------
>>> Donald Stufft
>>> PGP: 0x6E3CBCE93372DCFA // 7C6B 7C5D 5E2B 6356 A926 F04F 6E3C BCE9 3372 DCFA
>>>
>
> Uh, it's defined in the PEP standards.
>
> -----------------
> Donald Stufft
> PGP: 0x6E3CBCE93372DCFA // 7C6B 7C5D 5E2B 6356 A926 F04F 6E3C BCE9 3372 DCFA
>