text: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  """
  cookiecutter.prompt
  ---------------------
  
  Functions for prompting the user for project info.
  """
  
  import sys
  
  PY3 = sys.version > '3'
  if PY3:
      iteritems = lambda d: iter(d.items())
  else:
      input = raw_input
      iteritems = lambda d: d.iteritems()
  
  def prompt_for_config(context):
      """
      Prompts the user to enter new config, using context as a source for the
      field names and sample values.
      """
      cookiecutter_dict = {}
      
      for key, val in iteritems(context['cookiecutter']):
          prompt = "{0} (default is \"{1}\")? ".format(key, val)
          new_val = input(prompt)
          new_val = new_val.strip()
  
          if new_val == '':
              new_val = val
          
          if PY3:
              cookiecutter_dict[key] = new_val
          else:
              cookiecutter_dict[key] = new_val.decode('utf-8')
      return cookiecutter_dict
  
  
  def query_yes_no(question, default="yes"):
      """
      Ask a yes/no question via `raw_input()` and return their answer.
  
      :param question: A string that is presented to the user.
      :param default: The presumed answer if the user just hits <Enter>.
          It must be "yes" (the default), "no" or None (meaning
          an answer is required of the user).
  
      The "answer" return value is one of "yes" or "no".
  
      Adapted from
      http://stackoverflow.com/questions/3041986/python-command-line-yes-no-input
      http://code.activestate.com/recipes/577058/
  
      """
      valid = {"yes": True, "y": True, "ye": True, "no": False, "n": False}
      if default is None:
          prompt = " [y/n] "
      elif default == "yes":
          prompt = " [Y/n] "
      elif default == "no":
          prompt = " [y/N] "
      else:
          raise ValueError("invalid default answer: '%s'" % default)
  
      while True:
          sys.stdout.write(question + prompt)
          choice = input().lower()
  
          if default is not None and choice == '':
              return valid[default]
          elif choice in valid:
              return valid[choice]
          else:
              sys.stdout.write("Please respond with 'yes' or 'no' "
                               "(or 'y' or 'n').\n")
  