[gentoo-user] PYTHON_SINGLE_TARGET & libreoffice

[gentoo-user] PYTHON_SINGLE_TARGET & libreoffice

[Alan McKinnon]

I don't know much about PYTHON_SINGLE_TARGET and PYTHON_TARGET, it all
seemed to just work so I never looked further. Until now. Of all
packages, libreoffice seems to want only python3:

I can set it in make.conf but as expected that causes all manner of
other packages to fail emerge checks as they need python2.7.

What's the preferred way to deal with this situation?
Some relevant info:

!!! The ebuild selected to satisfy "app-office/libreoffice" has unmet
requirements.
- app-office/libreoffice-5.1.0.3::gentoo USE="bluetooth branding cups
dbus gstreamer java kde mysql vlc (-aqua) -coinmp -collada -debug -eds
(-firebird) -gltf -gnome -gtk -gtk3 -jemalloc -libressl -odk -postgres
(-telepathy) -test" ABI_X86="64" LIBREOFFICE_EXTENSIONS="-nlpsolver
-scripting-beanshell -scripting-javascript -wiki-publisher"
PYTHON_SINGLE_TARGET="-python3_4 -python3_5" PYTHON_TARGETS="python3_4
python3_5"

  The following REQUIRED_USE flag constraints are unsatisfied:
    exactly-one-of ( python_single_target_python3_4
python_single_target_python3_5 )


khamul ~ # eix -e python
[I] dev-lang/python
     Available versions:
     (2.7)  2.7.10-r1 (~)2.7.11-r2
     (3.3)  3.3.5-r2 (~)3.3.5-r7(3.3/3.3m)
     (3.4)  3.4.3-r1 (~)3.4.3-r7(3.4/3.4m)
     (3.5)  (~)3.5.0-r2 (~)3.5.1-r2(3.5/3.5m)
       {-berkdb build doc examples gdbm hardened ipv6 libressl +ncurses
+readline sqlite +ssl +threads tk +wide-unicode wininst +xml ELIBC="uclibc"}
     Installed versions:  2.7.11-r2(2.7)(23:48:21 11/01/2016)(gdbm ipv6
ncurses readline sqlite ssl threads wide-unicode xml -berkdb -build -doc
-examples -hardened -libressl -tk -wininst ELIBC="-uclibc")
3.4.3-r7(3.4)(12:59:30 01/01/2016)(gdbm ipv6 ncurses readline sqlite ssl
threads xml -build -examples -hardened -libressl -tk -wininst
ELIBC="-uclibc") 3.5.1-r2(3.5)(19:42:48 27/02/2016)(gdbm ipv6 ncurses
readline sqlite ssl threads xml -build -examples -hardened -libressl -tk
-wininst ELIBC="-uclibc")
     Homepage:            http://www.python.org/
     Description:         An interpreted, interactive, object-oriented
programming language


khamul ~ # eselect python list
Available Python interpreters:
  [1]   python2.7
  [2]   python3.4
  [3]   python3.5 *


khamul ~ # emerge --info | grep PYTHON
PYTHON_SINGLE_TARGET="python2_7"
PYTHON_TARGETS="python2_7 python3_4"
Unset:  USE_PYTHON


-- 
Alan McKinnon
alan.mckinnon@gmail.com

Re: [gentoo-user] PYTHON_SINGLE_TARGET & libreoffice

[Alec Ten Harmsel]

On Sat, Feb 27, 2016 at 09:40:06PM +0200, Alan McKinnon wrote:
> I don't know much about PYTHON_SINGLE_TARGET and PYTHON_TARGET, it all
> seemed to just work so I never looked further. Until now. Of all
> packages, libreoffice seems to want only python3:

I don't know much about them either.

> !!! The ebuild selected to satisfy "app-office/libreoffice" has unmet
> requirements.
> - app-office/libreoffice-5.1.0.3::gentoo USE="bluetooth branding cups
> dbus gstreamer java kde mysql vlc (-aqua) -coinmp -collada -debug -eds
> (-firebird) -gltf -gnome -gtk -gtk3 -jemalloc -libressl -odk -postgres
> (-telepathy) -test" ABI_X86="64" LIBREOFFICE_EXTENSIONS="-nlpsolver
> -scripting-beanshell -scripting-javascript -wiki-publisher"
> PYTHON_SINGLE_TARGET="-python3_4 -python3_5" PYTHON_TARGETS="python3_4
> python3_5"
> 
>   The following REQUIRED_USE flag constraints are unsatisfied:
>     exactly-one-of ( python_single_target_python3_4
> python_single_target_python3_5 )
> 
> <snip>
> 
> khamul ~ # emerge --info | grep PYTHON
> PYTHON_SINGLE_TARGET="python2_7"
> PYTHON_TARGETS="python2_7 python3_4"
> Unset:  USE_PYTHON
> 

app-office/libreoffice-5.1.0.3 requires PYTHON_SINGLE_TARGET to be
python3_4 or python3_5. That's the only problem. I would recommend
running stable libreoffice; I would be surprised if emerge would be
happy after you set PYTHON_SINGLE_TARGET="python3_4".

Alec

Re: [gentoo-user] PYTHON_SINGLE_TARGET & libreoffice

[Alan McKinnon]

On 27/02/2016 21:59, Alec Ten Harmsel wrote:
> On Sat, Feb 27, 2016 at 09:40:06PM +0200, Alan McKinnon wrote:
>> I don't know much about PYTHON_SINGLE_TARGET and PYTHON_TARGET, it all
>> seemed to just work so I never looked further. Until now. Of all
>> packages, libreoffice seems to want only python3:
> 
> I don't know much about them either.
> 
>> !!! The ebuild selected to satisfy "app-office/libreoffice" has unmet
>> requirements.
>> - app-office/libreoffice-5.1.0.3::gentoo USE="bluetooth branding cups
>> dbus gstreamer java kde mysql vlc (-aqua) -coinmp -collada -debug -eds
>> (-firebird) -gltf -gnome -gtk -gtk3 -jemalloc -libressl -odk -postgres
>> (-telepathy) -test" ABI_X86="64" LIBREOFFICE_EXTENSIONS="-nlpsolver
>> -scripting-beanshell -scripting-javascript -wiki-publisher"
>> PYTHON_SINGLE_TARGET="-python3_4 -python3_5" PYTHON_TARGETS="python3_4
>> python3_5"
>>
>>   The following REQUIRED_USE flag constraints are unsatisfied:
>>     exactly-one-of ( python_single_target_python3_4
>> python_single_target_python3_5 )
>>
>> <snip>
>>
>> khamul ~ # emerge --info | grep PYTHON
>> PYTHON_SINGLE_TARGET="python2_7"
>> PYTHON_TARGETS="python2_7 python3_4"
>> Unset:  USE_PYTHON
>>
> 
> app-office/libreoffice-5.1.0.3 requires PYTHON_SINGLE_TARGET to be
> python3_4 or python3_5. That's the only problem. I would recommend
> running stable libreoffice; I would be surprised if emerge would be
> happy after you set PYTHON_SINGLE_TARGET="python3_4".

Correct, there are still way too many packages requiring python-2.7 that
don't support python-3 at all.

I deliberately keep this box on ~arch so I set the variables for
libreoffice in package.use and a world update is now running.

Wanting to know more about the subject, I found
https://wiki.gentoo.org/wiki/Project:Python/PYTHON_TARGETS
which more or less states that to fix issues like this, put it in
package.use


-- 
Alan McKinnon
alan.mckinnon@gmail.com

[gentoo-user] Re: PYTHON_SINGLE_TARGET & libreoffice

[Nikos Chantziaras]

On 27/02/16 21:40, Alan McKinnon wrote:
> I don't know much about PYTHON_SINGLE_TARGET and PYTHON_TARGET, it all
> seemed to just work so I never looked further. Until now. Of all
> packages, libreoffice seems to want only python3:
>
> I can set it in make.conf but as expected that causes all manner of
> other packages to fail emerge checks as they need python2.7.
>
> What's the preferred way to deal with this situation?

   PYTHON_TARGETS="python2_7 python3_4"
   PYTHON_SINGLE_TARGET="python3_4"

For packages that require another PYTHON_SINGLE_TARGET version, you can 
set "python_single_target_python2_7" in package.use. For example:

   app-text/asciidoc python_single_target_python2_7

The reverse is also true. You can set:

   PYTHON_SINGLE_TARGET="python2_7"

in make.conf, and then set "python_single_target_python3_4" in 
package.use for packages that require 3.4:

   app-office/libreoffice python_single_target_python3_4

I use the first method.

Yes, it's a PITA :-)


PS:
Another syntax is also available for package.use:

   app-text/asciidoc <other USE flags> PYTHON_SINGLE_TARGET: python2_7

Just saw a blog post about it; I think it's undocumented and works for 
all USE_EXPAND flags. The downside is that it has to appear at the end 
of the line.

Re: [gentoo-user] Re: PYTHON_SINGLE_TARGET & libreoffice

[Alan McKinnon]

On 27/02/2016 22:16, Nikos Chantziaras wrote:
> On 27/02/16 21:40, Alan McKinnon wrote:
>> I don't know much about PYTHON_SINGLE_TARGET and PYTHON_TARGET, it all
>> seemed to just work so I never looked further. Until now. Of all
>> packages, libreoffice seems to want only python3:
>>
>> I can set it in make.conf but as expected that causes all manner of
>> other packages to fail emerge checks as they need python2.7.
>>
>> What's the preferred way to deal with this situation?
> 
>   PYTHON_TARGETS="python2_7 python3_4"
>   PYTHON_SINGLE_TARGET="python3_4"
> 
> For packages that require another PYTHON_SINGLE_TARGET version, you can
> set "python_single_target_python2_7" in package.use. For example:
> 
>   app-text/asciidoc python_single_target_python2_7
> 
> The reverse is also true. You can set:
> 
>   PYTHON_SINGLE_TARGET="python2_7"
> 
> in make.conf, and then set "python_single_target_python3_4" in
> package.use for packages that require 3.4:
> 
>   app-office/libreoffice python_single_target_python3_4
> 
> I use the first method.
> 
> Yes, it's a PITA :-)

I'll say.

Just got another one - sigil. That fails at build time, not at
emerge-initial-check-stuff time. So no problem I thought, I'll tweak
that one too. Now that causes 20 packages in dev-python like eg pillow,
six, etc to want the same tweak. And boost.

I have free time, I'll experiment with those now. I just hope it doesn't
break everything else using those packages



> PS:
> Another syntax is also available for package.use:
> 
>   app-text/asciidoc <other USE flags> PYTHON_SINGLE_TARGET: python2_7
> 
> Just saw a blog post about it; I think it's undocumented and works for
> all USE_EXPAND flags. The downside is that it has to appear at the end
> of the line.
> 
> 


-- 
Alan McKinnon
alan.mckinnon@gmail.com

[gentoo-user] Re: PYTHON_SINGLE_TARGET & libreoffice

[Nikos Chantziaras]

On 27/02/16 22:04, Alan McKinnon wrote:
> There are still way too many packages requiring python-2.7 that
> don't support python-3 at all.

Hm. I only have one such package: app-text/asciidoc. That's out of 1227 
total packages installed.

[gentoo-user] Re: PYTHON_SINGLE_TARGET & libreoffice

[»Q«]

On Sat, 27 Feb 2016 21:40:06 +0200
Alan McKinnon <alan.mckinnon@gmail.com> wrote:

> I don't know much about PYTHON_SINGLE_TARGET and PYTHON_TARGET, it all
> seemed to just work so I never looked further. Until now. Of all
> packages, libreoffice seems to want only python3:
> 
> I can set it in make.conf but as expected that causes all manner of
> other packages to fail emerge checks as they need python2.7.
> 
> What's the preferred way to deal with this situation?
> Some relevant info:
> 
> !!! The ebuild selected to satisfy "app-office/libreoffice" has unmet
> requirements.
> - app-office/libreoffice-5.1.0.3::gentoo USE="bluetooth branding cups
> dbus gstreamer java kde mysql vlc (-aqua) -coinmp -collada -debug -eds
> (-firebird) -gltf -gnome -gtk -gtk3 -jemalloc -libressl -odk -postgres
> (-telepathy) -test" ABI_X86="64" LIBREOFFICE_EXTENSIONS="-nlpsolver
> -scripting-beanshell -scripting-javascript -wiki-publisher"
> PYTHON_SINGLE_TARGET="-python3_4 -python3_5" PYTHON_TARGETS="python3_4
> python3_5"
> 
>   The following REQUIRED_USE flag constraints are unsatisfied:
>     exactly-one-of ( python_single_target_python3_4
> python_single_target_python3_5 )
 
> khamul ~ # eselect python list
> Available Python interpreters:
>   [1]   python2.7
>   [2]   python3.4
>   [3]   python3.5 *

I think you can just put 

  app-office/libreoffice python_single_target_python3_5

into package.use, which is easier than messing with package.env.

But if anything still looks funny in emerge --pretend output, wait for
advice from someone better than me!

Re: [gentoo-user] Re: PYTHON_SINGLE_TARGET & libreoffice

[Alan McKinnon]

On 27/02/2016 22:22, Nikos Chantziaras wrote:
> On 27/02/16 22:04, Alan McKinnon wrote:
>> There are still way too many packages requiring python-2.7 that
>> don't support python-3 at all.
> 
> Hm. I only have one such package: app-text/asciidoc. That's out of 1227
> total packages installed.
> 
> 

There's a few deal-breakers around you might not use

ansible & beets are the first two that come to mind.

-- 
Alan McKinnon
alan.mckinnon@gmail.com

Re: [gentoo-user] Re: PYTHON_SINGLE_TARGET & libreoffice

[Alan McKinnon]

On 27/02/2016 22:27, »Q« wrote:
> On Sat, 27 Feb 2016 21:40:06 +0200
> Alan McKinnon <alan.mckinnon@gmail.com> wrote:
> 
>> I don't know much about PYTHON_SINGLE_TARGET and PYTHON_TARGET, it all
>> seemed to just work so I never looked further. Until now. Of all
>> packages, libreoffice seems to want only python3:
>>
>> I can set it in make.conf but as expected that causes all manner of
>> other packages to fail emerge checks as they need python2.7.
>>
>> What's the preferred way to deal with this situation?
>> Some relevant info:
>>
>> !!! The ebuild selected to satisfy "app-office/libreoffice" has unmet
>> requirements.
>> - app-office/libreoffice-5.1.0.3::gentoo USE="bluetooth branding cups
>> dbus gstreamer java kde mysql vlc (-aqua) -coinmp -collada -debug -eds
>> (-firebird) -gltf -gnome -gtk -gtk3 -jemalloc -libressl -odk -postgres
>> (-telepathy) -test" ABI_X86="64" LIBREOFFICE_EXTENSIONS="-nlpsolver
>> -scripting-beanshell -scripting-javascript -wiki-publisher"
>> PYTHON_SINGLE_TARGET="-python3_4 -python3_5" PYTHON_TARGETS="python3_4
>> python3_5"
>>
>>   The following REQUIRED_USE flag constraints are unsatisfied:
>>     exactly-one-of ( python_single_target_python3_4
>> python_single_target_python3_5 )
>  
>> khamul ~ # eselect python list
>> Available Python interpreters:
>>   [1]   python2.7
>>   [2]   python3.4
>>   [3]   python3.5 *
> 
> I think you can just put 
> 
>   app-office/libreoffice python_single_target_python3_5
> 
> into package.use, which is easier than messing with package.env.

Yup, that's the way it seems.
Also it looks like it'll be the way for at least the next 10 years -
that's my minimum guess how long I reckon python-2 will be around


-- 
Alan McKinnon
alan.mckinnon@gmail.com

Re: [gentoo-user] PYTHON_SINGLE_TARGET & libreoffice

[Todd Goodman]

* Alan McKinnon <alan.mckinnon@gmail.com> [160227 14:42]:
> I don't know much about PYTHON_SINGLE_TARGET and PYTHON_TARGET, it all
> seemed to just work so I never looked further. Until now. Of all
> packages, libreoffice seems to want only python3:

I was in the same position until my last updates didn't work either.

> 
> I can set it in make.conf but as expected that causes all manner of
> other packages to fail emerge checks as they need python2.7.

What I did was add the expanded USE flag for python3_4
(python_single_target_python3_4 I think, but doublecheck the output to
be sure) in package.use for libreoffice for the same reason (I had other
packages that still need python2.7.)
[..SNIP..]

Todd

Re: [gentoo-user] PYTHON_SINGLE_TARGET & libreoffice

[Neil Bothwick]

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On Sat, 27 Feb 2016 21:40:06 +0200, Alan McKinnon wrote:

> I don't know much about PYTHON_SINGLE_TARGET and PYTHON_TARGET, it all
> seemed to just work so I never looked further. Until now. Of all
> packages, libreoffice seems to want only python3:
> 
> I can set it in make.conf but as expected that causes all manner of
> other packages to fail emerge checks as they need python2.7.
> 
> What's the preferred way to deal with this situation?

I set it in package.use

=app-office/libreoffice-5.1.0.3 python_single_target_python3_4

Set for a single version for now, in case this is a glitch in the ebuild
and not needed later.


-- 
Neil Bothwick

the sum of all human intelligence is constant, only the number of humans
increases.

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