My quiz

import datetime
import random

from questions import *

class Quiz:
    questions = []
    # answers so we can pick with ones were wrong/right
    answers = []
    correct = []
    incorrect = []

    def __init__(self, num_questions=10, num_range=12, question_types=[Multiply]):
        # make 10 random questions
        for _ in range(num_questions):
            # get 2 random numbers, within the range we are testing except "1"
            nums = [random.choice(range(2, num_range)) for _ in range(2)]
            # pick between our options for question types
            q = random.choice(question_types)
            # instantiate our question object with numbers
            question = q(*nums)
            # add this question into self.questions
            self.questions.append(question)
        self.take_quiz()


    def take_quiz(self):
        print("WELCOME TO THE QUIZ! \n\n")
        # log the start time
        quiz_st_time = datetime.datetime.now()
        # ask all of the questions and store the responses
        for question in self.questions:
            self.answers.append(self.ask(question))
        # log if they got all the questions right
        self.correct = [q['correct'] for q in self.answers]
        self.incorrect = [q['correct'] for q in self.answers if not q['correct'] ]
        # log the end time
        quiz_fn_time = datetime.datetime.now()
        # show a summary
        return self.summary(start=quiz_st_time, finish=quiz_fn_time)

    def ask(self, question):
        # log the start time
        question_st_time = datetime.datetime.now()
        # capture the response
        response = input(question.text+" ")
        # convert to ints if we can
        try:
            answer = int(response)
        except ValueError:
            answer = response 
        # check the answer
        # if the answer is right, ret True, else False
        return {'question':     question.text,
                'answer':       answer,
                'correct':      answer==question.answer, 
                'elapsed_time': datetime.datetime.now() - question_st_time}


    def summary(self, start, finish):
        # print number right/wrong
        print("\nCorrect: {} Incorrect: {}\n".format(len(self.correct), len(self.incorrect)))
        for answer in self.answers:
            print("Question: {} Answer: {} Correct?: {} Seconds: {}".format(
                    answer['question'], 
                    answer['answer'], 
                    answer['correct'], 
                    answer['elapsed_time'].seconds))
        # print total quiz time
        print("Total time: {}m {}s".format((finish - start).seconds//60, (finish - start).seconds %60))

if __name__ == '__main__':
    Quiz()