Nenhum módulo chamado 'lsb_release' depois de instalar o Python 3.6.3 da fonte

Question

plataforma: ubuntu 17.04 server

A instalação do servidor do ubuntu 17.04 inclui o python 2.7 e o python 3.5. Eu instalei o Python 3.6.3 manualmente a partir da fonte. No entanto, lsb_release -a falhou:

# lsb_release -a
Traceback (most recent call last):
  File "/usr/bin/lsb_release", line 25, in <module>
    import lsb_release
ModuleNotFoundError: No module named 'lsb_release'

Mas se eu modificar a primeira linha do arquivo lsb_release de

#!/usr/bin/python3 -Es

para

#!/usr/bin/python3.5 -Es

funciona novamente.

# lsb_release -a
LSB Version:    core-9.20160110ubuntu5-amd64:core-9.20160110ubuntu5-noarch:security-9.20160110ubuntu5-amd64:security-9.20160110ubuntu5-noarch
Distributor ID: Ubuntu
Description:    Ubuntu 17.04
Release:    17.04
Codename:   zesty

Aqui está o caminho de pesquisa do módulo:

# python3.5
Python 3.5.3 (default, Sep 14 2017, 22:58:41) 
[GCC 6.3.0 20170406] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path
['', '/usr/lib/python35.zip', '/usr/lib/python3.5', '/usr/lib/python3.5/plat-x86_64-linux-gnu', '/usr/lib/python3.5/lib-dynload', '/usr/local/lib/python3.5/dist-packages', '/usr/lib/python3/dist-packages']
>>> import lsb_release
>>> exit()

# python3
Python 3.6.3 (default, Oct 14 2017, 20:35:42) 
[GCC 6.3.0 20170406] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> sys.path
['', '/usr/local/lib/python36.zip', '/usr/local/lib/python3.6', '/usr/local/lib/python3.6/lib-dynload', '/root/.local/lib/python3.6/site-packages', '/usr/local/lib/python3.6/site-packages']
>>> import lsb_release
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'lsb_release'
>>> exit()

Alguém sabe como consertar isso?

    

Answer 1

Solução:

sudo ln -s /usr/share/pyshared/lsb_release.py /usr/local/lib/python3.6/site-packages/lsb_release.py

Explique:

Podemos ver em /usr/bin/lsb_release

#!/usr/bin/python3 -Es

# lsb_release command for Debian
# (C) 2005-10 Chris Lawrence <[email protected]>
#    This package is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; version 2 dated June, 1991.
#    This package is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#    You should have received a copy of the GNU General Public License
#    along with this package; if not, write to the Free Software
#    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
#    02110-1301 USA
from optparse import OptionParser
import sys
import os
import re

import lsb_release

O passo chave é import lsb_release , mas o problema é que Python 3.6 não tem este módulo.

Portanto, você deve ter substituído o python3 de python3.5 para python3.6 . É por isso que seu lsb_release está quebrado.

Para verificar isso, podemos ver em python3.6 :

➜  ~ python3.6 
Python 3.6.4 (default, Feb  6 2018, 16:57:12) 
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import lsb_release
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'lsb_release'

e, em seguida, em python3.5 :

➜  ~ python3.5
Python 3.5.2 (default, Nov 23 2017, 16:37:01) 
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import lsb_release
>>> lsb_release.__file__
'/usr/lib/python3/dist-packages/lsb_release.py'

onde está este arquivo:

➜  ~ ll /usr/lib/python3/dist-packages/lsb_release.py
lrwxrwxrwx 1 root root 38 Jul   7  2016 /usr/lib/python3/dist-packages/lsb_release.py -> ../../../share/pyshared/lsb_release.py

Portanto, este módulo lsb_release existe em python3.5 , mas não existe em python3.6 . E nós encontramos eventualmente!

Agora vamos corrigir isso adicionando um link para o arquivo lsb_release.py original!

Funciona para mim!