python3_5 em PYTHON_TARGETS não funciona no Gentoo?

Question

Adicionei PYTHON_TARGETS="python2_7 python3_5 python3_4" ao meu /etc/portage/make.conf .

Ao tentar instalar qualquer programa que suporte alvos python, acontece o seguinte:

sudo emerge --ask dev-python/google-api-python-client

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild  N     ] dev-python/httplib2-0.9.1  PYTHON_TARGETS="python2_7 python3_4 (-pypy) (-pypy3)" 
[ebuild  N     ] dev-python/pyasn1-modules-0.0.5-r1  PYTHON_TARGETS="python2_7 python3_4 (-pypy) (-pypy3)" 
[ebuild  N     ] dev-python/linecache2-1.0.0  USE="{-test}" PYTHON_TARGETS="python2_7 python3_4 (-pypy) (-pypy3) (-python3_5)" 
[ebuild  N     ] dev-python/simplejson-3.8.1  PYTHON_TARGETS="python2_7 python3_4 (-pypy) (-pypy3) (-python3_5)" 
[ebuild  N     ] dev-python/uritemplate-0.6  PYTHON_TARGETS="python2_7 python3_4 (-pypy) (-pypy3) (-python3_5)" 
[ebuild  N     ] dev-python/traceback2-1.4.0  PYTHON_TARGETS="python2_7 python3_4 (-pypy) (-pypy3) (-python3_5)" 
[ebuild  N     ] dev-python/rsa-3.2.3-r1  USE="{-test}" PYTHON_TARGETS="python2_7 python3_4 (-pypy) (-python3_5)" 
[ebuild  N     ] dev-python/oauth2client-2.0.1  USE="{-test}" PYTHON_TARGETS="python2_7 python3_4 (-pypy) (-python3_5)" 
[ebuild  N     ] dev-python/google-api-python-client-1.5.0  USE="{-test}" PYTHON_TARGETS="python2_7 python3_4 (-pypy)" 

Would you like to merge these packages? [Yes/No] 

Como você pode ver, python3_5 está desabilitado por algum motivo e eu não sei como consertá-lo. Eu também tentei adicionar python_targets_python3_5 aos meus sinalizadores USE, mas não tem resultado.

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

O que devo fazer para ter o suporte ao sinalizador python3.5 ativado?

    

Answer 1

Eu finalmente encontrei como resolver esse problema.

Você precisa editar /usr/portage/profiles/base/use.stable.mask e comentar as seguintes linhas:

python_targets_python3_5
python_single_target_python3_5

E aqui vamos nós:

sudo emerge --ask dev-python/google-api-python-client

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild   R    ] dev-python/six-1.10.0  PYTHON_TARGETS="python3_5*" 
[ebuild   R    ] dev-python/setuptools-20.6.7  PYTHON_TARGETS="python3_5*" 
[ebuild   R    ] dev-python/certifi-2015.11.20  PYTHON_TARGETS="python3_5*" 
[ebuild     U ~] dev-python/pyasn1-0.1.9 [0.1.8] PYTHON_TARGETS="python3_5%*" 
[ebuild  N    ~] dev-python/httplib2-0.9.2-r1  PYTHON_TARGETS="python2_7 python3_4 python3_5 -pypy -pypy3" 
[ebuild   R    ] dev-python/pbr-1.10.0  PYTHON_TARGETS="python3_5*" 
[ebuild  N     ] dev-python/simplejson-3.8.1  PYTHON_TARGETS="python2_7 python3_4 python3_5 (-pypy) (-pypy3)" 
[ebuild  N     ] dev-python/uritemplate-0.6  PYTHON_TARGETS="python2_7 python3_4 python3_5 (-pypy) (-pypy3)" 
[ebuild  N    ~] dev-python/pyasn1-modules-0.0.8  PYTHON_TARGETS="python2_7 python3_4 python3_5 -pypy -pypy3" 
[ebuild  N     ] dev-python/linecache2-1.0.0  USE="{-test}" PYTHON_TARGETS="python2_7 python3_4 python3_5 (-pypy) (-pypy3)" 
[ebuild  N     ] dev-python/traceback2-1.4.0  PYTHON_TARGETS="python2_7 python3_4 python3_5 (-pypy) (-pypy3)" 
[ebuild  N     ] dev-python/rsa-3.2.3-r1  USE="{-test}" PYTHON_TARGETS="python2_7 python3_4 python3_5 (-pypy)" 
[ebuild  N     ] dev-python/oauth2client-2.0.1  USE="{-test}" PYTHON_TARGETS="python2_7 python3_4 python3_5 (-pypy)" 
[ebuild  N     ] dev-python/google-api-python-client-1.5.0  USE="{-test}" PYTHON_TARGETS="python2_7 python3_4 (-pypy)" 

UPDATE : essas alterações serão substituídas pelas atualizações do sistema. Portanto, você precisa atualizar /etc/portage/profile/use.stable.mask com as seguintes linhas:

-python_targets_python3_5
-python_single_target_python3_5

Graças a jansegre do Reddit.