2010-01-10 19:41:55 Sebastian Pipping napisał(a):
> On 01/10/10 09:29, Arfrever Frehtes Taifersar Arahesis wrote:
> > I would like to suggest introduction of support for PYTHON_DEPEND variable,
> > which
> > would be a better replacement for NEED_PYTHON variable. NEED_PYTHON variable
> > does not allow to specify that e.g. only versions of Python 2 are accepted.
> > (Eventually PYTHON_DEPEND variable will have to be set only in ebuilds of
> > packages
> > not supporting installation for multiple versions of Python.)
> >
> > Suggested syntax:
> > PYTHON_DEPEND="[USE_flag?] <X[:[Y][:[Z]]]> [X[:[Y][:[Z]]]]"
> > <required_component>, [optional_component]
> > X - Major version of Python ('2' or '3') or '*'.
> > Y - Minimal version of Python in the form of
> > ${major_version}.${minor_version}.
> > Z - Maximal version of Python in the form of
> > ${major_version}.${minor_version}.
> > It will be probably very rarely used.
> >
> > Examples:
> > PYTHON_DEPEND="2"
> > Dependency on any version of Python 2.
> >
> > PYTHON_DEPEND="2:2.5"
> > Dependency on Python 2.7, 2.6 or 2.5.
> >
> > PYTHON_DEPEND="*:2.6"
> > Dependency on Python 3.2, 3.1, 3.0, 2.7 or 2.6.
> >
> > PYTHON_DEPEND="2:2.7 3:3.1"
> > Dependency on Python 3.2, 3.1 or 2.7.
> >
> > PYTHON_DEPEND="2:2.5:2.6"
> > Dependency on Python 2.6 or 2.5.
> >
> > PYTHON_DEPEND="2::2.6"
> > Dependency on Python 2.6, 2.5 or 2.4.
> >
> > PYTHON_DEPEND="python? 2"
> > Dependency on any version of Python 2 when "python" USE flag is enabled.
> >
>
> While I don't object improvements or changes on that front at all:
>
> - How are SUPPORT_PYTHON_ABIS and RESTRICT_PYTHON_ABIS affected
> by NEED_PYTHON now and by PYTHON_DEPEND in the future?They aren't and won't be. PYTHON_DEPEND is designed mainly for packages not supporting installation for multiple Python versions. > - The proposed approach doesn't look intuitive to me from a quick > view, sorry: Neither the examples nor the grammar. I didn't give > it that much time to be fair, though. IMHO it's sufficiently intuitive :) . -- Arfrever Frehtes Taifersar Arahesis
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