Re: [gentoo-dev] Packages pulling in python-3*, also they dont require it

[Arfrever Frehtes Taifersar Arahesis <Arfrever@gentoo.org>]

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2010-03-19 11:13:48 Dale napisał(a):
> Ciaran McCreesh wrote:
> > On Fri, 19 Mar 2010 04:23:31 -0500
> > Dale<rdalek1967@gmail.com>  wrote:
> >    
> >>> It's being installed because it's a dependency of something you use.
> >>>
> >>> Replace Python with any other library and we wouldn't be having this
> >>> discussion.
> >>>        
> >> OK.  Right now, as you type this, what package depends on python-3
> >> and won't work with python-2?  Anything at all?  If it is nothing,
> >> then why install it?
> >>      
> > And that's where you're making the mistake: you're treating Python as
> > being different from every other package.
> >
> > In every other case, you want things to be using the newest version of a
> > slotted package where possible. Why aren't you complaining that you were
> > forced to install gcc 4.3 and 4.1 when 3.4 worked just fine?
> >
> >    
> Because, when I installed gcc 4.3, I could then unmerge the old gcc.  
> That's why I didn't complain about that.  With python, we still have to 
> have the current version plus the new version which is not being used at 
> all.
> 
> Am I not correct in that?  If the new python is installed, what exactly 
> is going to use it?  I used the new gcc.  It worked fine.  I unmerged 
> the old one with no wasted space and one less package installed.  This 
> doesn't appear to be the case with python-3 tho.  It's going to be 
> installed and just sit there like a rock.

Python 3 is used during installation of packages, which support Python 2 and
Python 3 and support installation for multiple Python ABIs. You can directly
execute scripts with "-3.1" suffix (e.g. "bpython-3.1" or "coverage-3.1")
to use Python 3.1 even when Python 2.* is set as main active version of Python.

-- 
Arfrever Frehtes Taifersar Arahesis

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