How to make this more ideomatically pythonic

snippet.py

    while test_completed is False:
        ret = v1.list_pod_for_all_namespaces(watch=False)
        for i in ret.items:
            container_status = i.status.container_statuses
            for container in container_status:
                if isinstance(container.state.terminated, client.V1ContainerStateTerminated):
                    if container.state.terminated.reason == 'Completed':
                        bar.finish()
                        test_completed = True
                        if container.state.terminated.exit_code == 0:
                            print('Loadtest containers exited without errors')
                        else:
                            print('Loadtest containers exited with errors, check logs')

        bar.update()

Hey Tarek,

Thanks for all the suggestions. I do want the while loop to end once the containers have completed running