I have attempted to implement prototype machinery here and here, but it's been widely ignored IHMO because as Thomas said, the spec keeps changing. 

2017-08-18 12:37 GMT-05:00 Thomas Kluyver <thomas@kluyver.me.uk>:
There's prototype machinery to call the hooks here, though it's outdated because the spec keeps changing:
https://github.com/takluyver/pep517

There's a prototype backend in a branch of flit, but it's even more outdated:
https://github.com/takluyver/flit/tree/toml-config


On Fri, Aug 18, 2017, at 06:27 PM, Daniel Holth wrote:

Apart from the issues, can we get some prototype implementations?


On Fri, Aug 18, 2017, 13:24 xoviat <xoviat@gmail.com> wrote:
Thomas:


What are the specific issues that need to be worked out? 


Regards,


xoviat

2017-08-18 3:09 GMT-05:00 Thomas Kluyver <thomas@kluyver.me.uk>:
On Fri, Aug 18, 2017, at 07:09 AM, Nick Coghlan wrote:
> The other aspect I'm not clear on is whether or not both PEP authors
> are otherwise happy for the current version to be *considered* for
> acceptance

Nathaniel has mentioned to me a list of issues he sees that we still
need to work through. So I think we're going to be working on this for a
while yet.

Thomas
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