The Tor Browser / file revision

 # This Source Code Form is subject to the terms of the Mozilla Public

 # License, v. 2.0. If a copy of the MPL was not distributed with this

 # file, You can obtain one at http://mozilla.org/MPL/2.0/.

 import configobj, sys

 try:

     (file, section, key) = sys.argv[1:]

 except ValueError:

     print "Usage: printconfigsetting.py <file> <section> <setting>"

     sys.exit(1)

 c = configobj.ConfigObj(file)

 try:

     s = c[section]

 except KeyError:

     print >>sys.stderr, "Section [%s] not found." % section

     sys.exit(1)

 try:

     print s[key]

 except KeyError:

     print >>sys.stderr, "Key %s not found." % key

     sys.exit(1)