Re: [gentoo-dev] PYTHON_DEPEND - Suggested replacement for NEED_PYTHON

[Maciej Mrozowski <reavertm@gmail.com>]

On Monday 11 of January 2010 01:25:45 Arfrever Frehtes Taifersar Arahesis 
wrote:
> 2010-01-10 21:56:01 Fabian Groffen napisał(a):
> > On 10-01-2010 09:29:28 +0100, 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.)
> > 
> > Can you explain the intended use of this variable, and why normal DEPEND
> > is not sufficient?
> 
> PYTHON_DEPEND is intented to simplify specification of dependency on
> Python.
> 
> PYTHON_DEPEND="2:2.5" is shorter than:
> DEPEND="|| ( =dev-lang/python-2.7* =dev-lang/python-2.6*
> =dev-lang/python-2.5* )"

Doesn't that accidentally mean that dev-lang/python is improperly slotted and 
all 2.x releases should be slotted with :2?
So that dependency string would look like:
DEPEND=">=dev-lang/python-2.5.0:2"

-- 
regards
MM