tools/yes_no.py

   1 # Copyright 2015 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 import sys
   6
   7
   8 def YesNo(prompt):
   9   """Prompts with a yes/no question, returns True if yes."""
  10   print prompt,
  11   sys.stdout.flush()
  12   # http://code.activestate.com/recipes/134892/
  13   if sys.platform == 'win32':
  14     import msvcrt
  15     ch = msvcrt.getch()
  16   else:
  17     import termios
  18     import tty
  19     fd = sys.stdin.fileno()
  20     old_settings = termios.tcgetattr(fd)
  21     ch = 'n'
  22     try:
  23       tty.setraw(sys.stdin.fileno())
  24       ch = sys.stdin.read(1)
  25     finally:
  26       termios.tcsetattr(fd, termios.TCSADRAIN, old_settings)
  27   print ch
  28   return ch in ('Y', 'y')