#! /usr/bin/env python from numpy.testing import TestCaseimport aubio.cmd class aubio_cmd(TestCase):     def setUp(self):        self.a_parser = aubio.cmd.aubio_parser()     def test_default_creation(self):        try:            assert self.a_parser.parse_args(['-V']).show_version        except SystemExit:            url = 'https://bugs.python.org/issue9253'            self.skipTest('subcommand became optional in py3, see %s' % url) class aubio_cmd_utils(TestCase):     def test_samples2seconds(self):        self.assertEqual(aubio.cmd.samples2seconds(3200, 32000),                "0.100000\t")     def test_samples2milliseconds(self):        self.assertEqual(aubio.cmd.samples2milliseconds(3200, 32000),                "100.000000\t")     def test_samples2samples(self):        self.assertEqual(aubio.cmd.samples2samples(3200, 32000),                "3200\t") if __name__ == '__main__':    from unittest import main    main()