code: def _get_user_input(prompt, key_name, parent, input_func=raw_input):
      
      val = input_func(prompt)
      ElementTree.SubElement(parent, "key").text = key_name
      if isinstance(val, bool):
          string_val = "true" if val else "false"
          ElementTree.SubElement(parent, string_val)
      else:
          ElementTree.SubElement(parent, "string").text = val
      return val
docs: Prompt the user for a value, and assign it to key_name.