Python中的测验游戏循环

Question

class Question:

    def __init__(self, prompt, answer):

        self.prompt = prompt

        self.answer = answer

我创建了上面的question_class.py文件并将其导入下面的quiz.py文件。我正在尝试运行一个 while 循环来询问用户是否有兴趣再次播放测验。但是，代码不会运行。

如何在循环中再次正确插入播放？另外，我如何询问用户是否准备好玩游戏并正确检查输入错误？

这是我的第一个个人项目，并在完成初学者教程后尝试学习如何编写自己的项目。我感谢所有反馈。

    from question_class import Question

    username = input("What is your name? ")

    print(f"Welcome, {username}!")

    play_again = 'y'

    while play_again == 'y':

    question_prompts = [

    ]

    questions = [

        Question(question_prompts[0], "b"),

        Question(question_prompts[1], "a"),

    ]

    def run_test(questions):

    score = 0

    for question in questions:

        answer = input(question.prompt)

        if answer == question.answer:

            score += 1

        print("You answered " + str(score) + "/" + str(len(questions)) + " correct.")

    play_again = input("Want to play again(y/n): ")

    run_test(questions)