[Distutils] additional paths in wheel

[Marcus Smith]

>
>
> Instead of just having predefined paths in the
> packagename-1.0.data/[path] directories, the user could define
> additional values for "path" in the {"path" : "installation
> directory"} dictionary used by wheel installers. (I'm not 100% sure
> this proposed feature does not cause more problems than it solves...)
>

well, as it is now, if "data_files" contains absolute paths, wheel silently
produces broken whl packages.
i.e. it produces packages that install your data_files relative to
sys.prefix (not as absolute)
so the proposed feature of custom paths, would at least offer a way to
un-break those packages.
another option for right now (and maybe in the long term too) though is to
refuse to ever build wheels for these packages in the first place
(see discussion in
https://bitbucket.org/pypa/wheel/issue/92/bdist_wheel-makes-absolute-data_files
)
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