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Python Dates and Times in Python Let's Build a Timed Quiz App Taking The Quiz

Tucker Fischer
Tucker Fischer
8,629 Points

Summary function is not printing

The program runs questions but at the end does not print the summary.

import datetime import random

from questions import Add, Multiply

class Quiz: questions = [] answers = []

def __init__(self):
    question_types = (Add, Multiply)
    for _ in range(10):
        num1 = random.randint(1, 10)
        num2 = random.randint(1,10)
        question = random.choice(question_types)(num1, num2)

def take_quiz(self):
    self.start_time = datetime.datetime.now()
    for question in self.questions:
        self.end_time = datetime.datetime.now()
    return self.summary

def ask(self, question):
    correct = False
    question_start = datetime.datetime.now()
    answer = input (question.text +' = ')
    if answer == str(question.answer):
        correct = True
    question_end = datetime.datetime.now()
    return correct, question_end - question_start

def total_correct(self):
    total = 0
    for answer in self.answers:
        if answer[0]:
            total += 1
    return total

def summary(self):
    print("You got {} out of {} right".format(
            self.total_correct(), len(self.questions)
    print("It took you {} seconds total".format(
            (self.edn_time - self.start_time).seconds


2 Answers

Jennifer Nordell
Jennifer Nordell
Treehouse Teacher

Hi there, Tucker Fischer! It looks like you forgot the parentheses where you are calling the summary method. Right now it's returning a reference to the method instead of returning what is returned by running the method. Inside your take_quiz method you have:

return self.summary # this references the method

But you meant:

return self.summary() # this calls/executes the method

Hope this helps! :sparkles:

3,063 Points

Also, in your summary method, check the variable spelling for self.end_time.

print("It took you {} seconds total".format(
            (self.edn_time - self.start_time).seconds