[1.6.x] Fixed #21122 -- Improved clean up of test temp directory on Windows

        # should allow it and continue on if allow_overwrite is True

        self.assertIsNone(file_move_safe(self.file_a, self.file_b, allow_overwrite=True))

        os.close(handle_a)

        os.close(handle_b)

    return state

def teardown(state):

    from django.conf import settings

    try:

        # Removing the temporary TEMP_DIR. Ensure we pass in unicode

        # so that it will successfully remove temp trees containing

        # non-ASCII filenames on Windows. (We're assuming the temp dir

        # name itself does not contain non-ASCII characters.)

        shutil.rmtree(six.text_type(TEMP_DIR))

    except OSError:

        print('Failed to remove temp directory: %s' % TEMP_DIR)

    # Restore the old settings.

    for key, value in state.items():

        setattr(settings, key, value)

def django_tests(verbosity, interactive, failfast, test_labels):

    from django.conf import settings

    state = setup(verbosity, test_labels)

        print("***** Source of error: %s" % test_labels[0])

    teardown(state)

def paired_tests(paired_test, options, test_labels):

    state = setup(int(options.verbosity), test_labels)

    print('***** No problem pair found')

    teardown(state)

if __name__ == "__main__":

    from optparse import OptionParser

    usage = "%prog [options] [module module module ...]"