def get_installed_pypackages():
    return {p.project_name.lower(): p for p in pkg_resources.working_set}
def test_base_class_reject_raises_error(self):
        with self.assertRaisesRegex(
            NotImplementedError,
            'Subclasses of BaseVoiceoverApplication should implement reject.'):
            self.base_voiceover_application.reject()