Ask a question for input via raw_input() and return their answer.

    "question" is a string that is presented to the user.
    "default" is the presumed answer if the user just hits <Enter>.

    The "answer" return value is a str.

def query_input(question, default=None, color=default_color):
    """Ask a question for input via raw_input() and return their answer.

    "question" is a string that is presented to the user.
    "default" is the presumed answer if the user just hits <Enter>.

    The "answer" return value is a str.
    """
    if default is None or default == '':
        prompt = ' '
    elif type(default) == str:
        prompt = flo(' [{default}] ')
    else:
        raise ValueError("invalid default answer: '%s'" % default)

    while True:
        sys.stdout.write(color(question + prompt))
        choice = raw_input()
        if default is not None and choice == '':
            return default
        if choice != '':
            return choice