Ask user and return boolean.

ask_boolean.py

  def ask_boolean(message):
      """
      Asks a yes/no question to the user and looks if the answer is yes or no
      
      @return answer: A boolean representing the user answer
      """
      yes = ['YES', 'Yes', 'yes', 'y']
      no = ['NO', 'No', 'n']
      
      answer = raw_input(message+'{new_line}Choose one of [{yes}] or [{no}] {new_line}'.format(new_line=os.linesep, yes=' '.join(yes), no=' '.join(no)))

      if answer in yes:
          return True
      elif answer in no:
          return False
      else:
          return False