[Distutils] Are there any plans to move to pip/wheels in buildout?

Daniel Holth dholth at gmail.com
Wed Dec 3 17:05:16 CET 2014

Wheel also has its own installer. It hasn't received as much attention
since pip gained support.

It would be good to pay some additional attention to the "[unzipped]
wheel as sys.path entry" case. It will usually work; most packages do
not use the .data/ directories for anything but scripts; these wheels
are very similar to eggs.


On Wed, Dec 3, 2014 at 10:30 AM, Jim Fulton <jim at zope.com> wrote:
> On Wed, Dec 3, 2014 at 10:12 AM, Paul Moore <p.f.moore at gmail.com> wrote:
>> On 3 December 2014 at 14:47, Jim Fulton <jim at zope.com> wrote:
>>>> Am I missing something about binary support with wheels?
>>> I don't think so.
>> Agreed.
>> It seems to me that the key issue currently is that for binary
>> distribution, pip only supports wheels, whereas buildout only supports
>> eggs.
> (And .exe)
>> There are other tools which also tend to only support one or the
>> other (e.g., easy_install -> egg, distil -> wheel) but I think they
>> are the minority. I don't know relative popularity between pip and
>> buildout - I suspect it depends on the community involved.
>> For a project, decisions on which binary formats to provide probably
>> need to be based on the expected numbers of users of each tool.
>> The wheel and egg formats are similar enough to allow auto-conversion
>> (wheel convert does egg->wheel, I don't know if there's a tool to do
>> wheel->egg, but it wouldn't be hard to write) but expecting users to
>> maintain local converted repositories is a burden in itself, so the
>> question remains what binaries to upload to PyPI.
> For now, it would be humane to upload both wheel and egg. :)
> We're happy to move buildout to using wheel.  It will make me
> very sad if we have to do that by invoking pip as a subprocess,
> but I'll cope if I have to.
> I think the next step is for me to enumerate buildout's packaging api
> requirements and desires. I'll try to get that done this weekend.
> (I'll need to spend some time refreshing my memory on some things.)
> Jim
> --
> Jim Fulton
> http://www.linkedin.com/in/jimfulton
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