[Distutils] Having a "less complete" configuration for a project

Paul Moore p.f.moore at gmail.com
Sun Oct 12 14:36:19 CEST 2014

On 12 October 2014 13:04, Nick Coghlan <ncoghlan at gmail.com> wrote:
>>> Any thoughts on how I could do this?
>> I don't know of any current way to do it, and even the more flexible
>> extras notation in PEP 426 doesn't quite get you there.
>> The closest it currently allows is "pip install myproj[-,core]". The
>> "-" disables installing the default dependencies, but it *also*
>> disables installing the distribution itself.
> On second thoughts, I think PEP 426 does already cover this, by
> letting you write "pip install myproj[-:meta:,-:run:,core]". That
> would turn off the normal "meta_requires" and "run_requires"
> processing, and just install the dependencies for the "core" extra
> instead (which would then presumably be a subset of the normal
> run_requires).
> You'd need to specify your core dependencies in two places (once in
> run_requires and once for the core extra), but having setup.py as an
> executable format copes with that OK.

Thanks, that looks good enough for my needs. I must admit to not
having really investigated this part of PEP 426, so thanks for the
pointer. I'll go and do some reading.

All I need to do now is wait for PEP 426 to get accepted, and a
version of pip with support for it to be released :-) But I don't
really mind ignoring the issue for now, until that happens. It's not
like the project is even fully written yet...


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