Fixed #14130 -- Made manage.py error reporting more useful when the...

#!/usr/bin/env python

from django.core.management import execute_manager

import imp

try:

    import settings # Assumed to be in the same directory.

    imp.find_module('settings') # Assumed to be in the same directory.

except ImportError:

    import sys

    sys.stderr.write("Error: Can't find the file 'settings.py' in the directory containing %r. It appears you've customized things.\nYou'll have to run django-admin.py, passing it your settings module.\n(If the file settings.py does indeed exist, it's causing an ImportError somehow.)\n" % __file__)

    sys.stderr.write("Error: Can't find the file 'settings.py' in the directory containing %r. It appears you've customized things.\nYou'll have to run django-admin.py, passing it your settings module.\n" % __file__)

    sys.exit(1)

import settings

if __name__ == "__main__":

    execute_manager(settings)

        self.assertNoOutput(out)

        self.assertOutput(err, "Unknown command: 'noargs_command'")

class ManageSettingsWithImportError(AdminScriptTestCase):

    """Tests for manage.py when using the default settings.py file

    with an import error. Ticket #14130.

    """

    def setUp(self):

        self.write_settings_with_import_error('settings.py')

    def tearDown(self):

        self.remove_settings('settings.py')

    def write_settings_with_import_error(self, filename, apps=None, is_dir=False, sdict=None):

        test_dir = os.path.dirname(os.path.dirname(__file__))

        if is_dir:

            settings_dir = os.path.join(test_dir,filename)

            os.mkdir(settings_dir)

            settings_file = open(os.path.join(settings_dir,'__init__.py'), 'w')

        else:

            settings_file = open(os.path.join(test_dir, filename), 'w')

        settings_file.write('# Settings file automatically generated by regressiontests.admin_scripts test case\n')

        settings_file.write('# The next line will cause an import error:\nimport foo42bar\n')

        settings_file.close()

    def test_builtin_command(self):

        "import error: manage.py builtin commands shows useful diagnostic info when settings with import errors is provided"

        args = ['sqlall','admin_scripts']

        out, err = self.run_manage(args)

        self.assertNoOutput(out)

        self.assertOutput(err, "ImportError: No module named foo42bar")

class ManageValidate(AdminScriptTestCase):

    def tearDown(self):