message: Replace raw_input/input with six.moves.input
  This fix is an enhancement to replace raw_input/input
  in python 2 and 3 with six.moves.input.
diff: @@ -20,6 +20,7 @@ from __future__ import print_function
  import signal
  import sys
  import traceback
  +import six
  # Google-internal import(s).
  from tensorflow.python.debug.lib import common
  @@ -140,11 +141,7 @@ class GrpcDebugWrapperSession(framework.NonInteractiveDebugWrapperSession):
  def _signal_handler(unused_signal, unused_frame):
  - try:
  - input_func = raw_input
  - except NameError:
  - # Python 3 does not have raw_input.
  - input_func = input
  + input_func = six.moves.input
  while True:
  response = input_func("\nSIGINT received. Quit program? (Y/n): ").strip()
  