[Distutils] What is the syntax for passing conditional non-extra dependencies in setuptools?

[Nick Coghlan]

On 28 Mar 2014 04:40, "PJ Eby" <pje at telecommunity.com> wrote:
>
> On Wed, Mar 26, 2014 at 11:29 PM, Daniel Holth <dholth at gmail.com> wrote:
>>
>> How do I specify a conditional (marker-guarded) non-extra dependency
>> in setuptools? The syntax for a conditional extra dependency is
>> currently:
>>
>>     extras_require = {
>>         "ssl:sys_platform=='win32'": "wincertstore==0.2",
>>         "certs": "certifi==1.0.1",
>>     },
>
>
> I only implemented support via extras, and the feature wasn't officially
supported (still isn't, I don't think) because the PEP specifying the
syntax wasn't fully baked yet.  I figured that if *only* setuptools itself
used it, then if the syntax changed only setuptools would break...  but fix
itself at the same time.
>
> The same cannot be said for any other package, so use at your own risk.
Or better yet, don't use it.  ;-)
>
> (At least, not until it's a documented feature w/a PEP-approved syntax.)

Various things got in the way of finalising at least PEP 440, but as far as
I am aware, it, 426 and 459 are basically done aside from updating the JSON
schema specs and redoing the PyPI compatibility analysis.

The other thing they need is for people to read through from scratch,
looking for inconsistencies and things that seem out of place, and
reporting those as issues at
https://bitbucket.org/pypa/pypi-metadata-formats

Cheers,
Nick.

>
>
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>
>
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