Fixed #11118 -- Made management command BaseCommand restore locale after execution.

        # like permissions, and those shouldn't contain any translations.

        # But only do this if we can assume we have a working settings file,

        # because django.utils.translation requires settings.

        saved_lang = None

        if self.can_import_settings:

            try:

                from django.utils import translation

                saved_lang = translation.get_language()

                translation.activate('en-us')

            except ImportError, e:

                # If settings should be available, but aren't,

        except CommandError, e:

            self.stderr.write(smart_str(self.style.ERROR('Error: %s\n' % e)))

            sys.exit(1)

        if saved_lang is not None:

            translation.activate(saved_lang)

    def validate(self, app=None, display_num_errors=False):

        """

from django.core import management

from django.core.management.base import CommandError

from django.test import TestCase

from django.utils import translation

class CommandTests(TestCase):

        self.assertEqual(out.getvalue(),

            "I don't feel like dancing Jive.")

    def test_language_preserved(self):

        out = StringIO()

        with translation.override('fr'):

            management.call_command('dance', stdout=out)

            self.assertEqual(translation.get_language(), 'fr')

    def test_explode(self):

        self.assertRaises(CommandError, management.call_command, ('explode',))