Re: [gentoo-user] python 2.x vs 3.x

[Mark Knecht]

On Sat, Feb 18, 2012 at 11:24 PM,  <meino.cramer@×××.de> wrote:
> Mark Knecht <markknecht@×××××.com> [12-02-19 03:13]:
>> In a current thread started by Meino where he is having trouble
>> emerging hydrogen he reported the following quoted data to Neil. I
>> don't believe Neil has responded yet but Meino's data brought me back
>> to a question I've meant to ask for a while so I'll take this
>> opportunity.
>>
>> From Meino:
>>
>> <QUOTE>
>> With
>>
>>    eselect python list
>>
>> I get
>>
>> Available Python interpreters:
>>  [1]   python2.6
>>  [2]   python2.7
>>  [3]   python3.1
>>  [4]   python3.2 *
>> </QUOTE>
>>
>> which shows python3.2 as the system wide default.
>>
>>    It's been my understanding ever since we first emerged any
>> python-3.x version that we were not supposed to set any version of
>> python3 as the system wide default. On all of my systems I have
>> something like this:
>>
>> c2stable ~ # eselect python list
>> Available Python interpreters:
>>   [1]   python2.7 *
>>   [2]   python3.2
>> c2stable ~ # eselect python list --python2
>> Available Python 2 interpreters:
>>   [1]   python2.7 *
>> c2stable ~ # eselect python list --python3
>> Available Python 3 interpreters:
>>   [1]   python3.2 *
>> c2stable ~ #
>>
>>    Now, like Paul Hartman I didn't have any trouble building and
>> running Hydrogen as a Jack client. It works just fine for me. However
>> no one else seemed to have picked up on Meino's configuration which
>> makes me wonder if I missed the memo to make the 3.x version of the
>> system wide default.
>>
>>    What is the current best practice in this area?
>>
>> Cheers,
>> Mark
>>
>
> Hi Mark,
>
> after a lot of revdep-rebuilds and unresolved (or over-resolved)
> references hydrogen builds fine. TADA! ;)
> That is very nice ! :))
>
> Thank you very much for all your help.
>
> Unfortunately the svn-build of blender builds, but
> the executable only prints:
>
>    Fatal Python error: Py_Initialize: Unable to get the locale encoding
>    LookupError: no codec search functions registered: can't find encoding
>    [1]    20570 abort      blender -noaudio
>
> Does anyone has built a daily snapshot of the svn blender successfully
> against the systemwide python 3.2. ?
>
> How can I get blender to work?
>
> Cheers
> mcc

Meino,
   First, congrats on getting Hydrogen going. May your life be full of
head banging drum riff all day & night long.

   Now, can you verify that the system wide python setting was in fact
what made it build on your system? I know you were doing lots and lots
of things. Was switching this back to 2.7 the thing that allowed
Hydrogen to build for you?

   As for Blender I really don't know what to do as I've never run it.
Are you building Blender from an overlay or standard portage? If it's
standard portage, and if the ebuild maintainer hasn't specifically
said that you have to use 3.x then should a bug report be filed?

   That may make no sense on other information you posted. I really
haven't paid any attention to that part. Sorry.

   Glad Hydrogen is working for you.

Cheers,
Mark