This was added in Python 3.9 which isn't always supported. Instead use the old way of checking the return status. --- autotests/testNetconfig/connection_test.py | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/autotests/testNetconfig/connection_test.py b/autotests/testNetconfig/connection_test.py index 8eeffbbd..17788011 100644 --- a/autotests/testNetconfig/connection_test.py +++ b/autotests/testNetconfig/connection_test.py @@ -41,7 +41,8 @@ class Test(unittest.TestCase): time.sleep(2) ret = os.system('ip addr show ' + device.name + ' | grep \'inet6 3ffe:501:ffff:100::\'') - self.assertEqual(os.waitstatus_to_exitcode(ret), 0) + self.assertTrue(os.WIFEXITED(ret)) + self.assertEqual(os.WEXITSTATUS(ret), 0) device.disconnect() -- 2.34.1