test_import.py 文件源码

def test_cached_readonly(self):
        mode = 0o400
        with temp_umask(0o022), _ready_to_import() as (name, path):
            cached_path = importlib.util.cache_from_source(path)
            os.chmod(path, mode)
            __import__(name)
            if not os.path.exists(cached_path):
                self.fail("__import__ did not result in creation of "
                          "either a .pyc or .pyo file")
            stat_info = os.stat(cached_path)

        expected = mode | 0o200 # Account for fix for issue #6074
        self.assertEqual(oct(stat.S_IMODE(stat_info.st_mode)), oct(expected))