It didn't return [dead loop] when Python 3 is being used.

[gangliao]

kubeflow/tf-controller-examples/tf-cnn/launcher.py

Lines 40 to 49 in fa9f138

	for line in iter(process.stdout.readline, ''):
	process.stdout.flush()
	logging.info(line.strip())
	sys.stderr.flush()
	sys.stdout.flush()
	process.stdout.flush()
	if process.stderr:
	process.stderr.flush()
	for line in iter(process.stdout.readline, ''):

It didn't return [dead loop] when Python 3 is being used.

Bytes literals are always prefixed with 'b' or 'B'; they produce an instance of the bytes type instead of the str type. They may only contain ASCII characters; bytes with a numeric value of 128 or greater must be expressed with escapes.

INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''
INFO|2018-05-04T12:34:33|launcher.py|22| b''