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  • Committer: Package Import Robot
  • Author(s): Barry Warsaw
  • Date: 2013-06-13 10:22:16 UTC
  • Revision ID: package-import@ubuntu.com-20130613102216-1oqae13cgvdnybch
Tags: 4.0-0ubuntu26.2
https://launchpad.net/bugs/1094218
lsb_release.py: Use the subprocess module instead of the commands
module to work around Python SIGCHLD handler issue9127.  LP: #1094218

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lsb_release.py
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#    02111-1307, USA.
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import sys
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import commands
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import os
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import re
 
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import subprocess
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# XXX: Update as needed
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# This should really be included in apt-cache policy output... it is already
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# This is Debian-specific at present
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def check_modules_installed():
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    # Find which LSB modules are installed on this system
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    output = commands.getoutput("dpkg-query -f '${Version} ${Provides}\n' -W %s 2>/dev/null" % PACKAGES)
 
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    C_env = os.environ.copy(); C_env['LC_ALL'] = 'C'
 
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    output = subprocess.Popen(['dpkg-query','-f',"${Version} ${Provides}\n",'-W'] + PACKAGES.split(),
 
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                              env=C_env,
 
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                              stdout=subprocess.PIPE,
 
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                              stderr=subprocess.PIPE,
 
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                              close_fds=True).communicate()[0].decode('utf-8')
 
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    if not output:
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        return []
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    modules = set()
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    for line in output.split(os.linesep):
 
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        if not line:
 
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            break
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        version, provides = line.split(' ', 1)
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        version = version.split('-', 1)[0]
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        for pkg in provides.split(','):
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def parse_apt_policy():
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    data = []
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    policy = commands.getoutput('LANG=C apt-cache policy 2>/dev/null')
 
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    C_env = os.environ.copy(); C_env['LC_ALL'] = 'C'
 
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    policy = subprocess.Popen(['apt-cache','policy'],
 
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                              env=C_env,
 
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                              stdout=subprocess.PIPE,
 
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                              stderr=subprocess.PIPE,
 
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                              close_fds=True).communicate()[0].decode('utf-8')
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    for line in policy.split('\n'):
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        line = line.strip()
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        m = re.match(r'(\d+)', line)