Quizzer

In this project, you will create a program that can give quizzes to a user and also provide a grade. Applications such as this can be useful for teachers to assess how their students are doing, and can also be a good knowledge-check for self-learners. The program will have the ability to load in a file containing questions and answers, of the user’s choosing. The files that this program will load in will have a simple format. Each line will resemble the following:

The question?|||The answer

This is an example of a short but correct file that we can use to test the program once it is complete:

what color is the sky?|||blue
how many years did it take to build the panama canal?|||10
what is the term length in years for POTUS?|||4
What color are the leaves of most plants?|||green

The program will function in the following way:

• Begin by asking the user what file to load questions from
• Then, ask the user how many questions they’d like to see in the quiz
• Choose the correct number of questions at random, and ask each to the user
• When a user answers correctly, remove that question from the ones available so it does not get asked again!
• At the end, report the grade of this quiz attempt

The output below shows an example of what it might look like if the user ran the program, using the text file shown earlier:

What is the name of the QA file? quiz1.txt
How many questions should be asked? 2
how many years did it take to build the panama canal?
Enter response: 10
correct!
what color is the sky?
Enter response: gray
incorrect!
You got 1 out of 2 correct.
Your percentage grade: 50.0%

As with the last guided project, the main function will be provided for you, but it will be up to you to implement three other functions to complete the program. When you are finished, you can put the code into your IDE and see it all working together on your own computer! The main function:

def main():
    file_name = input('What is the name of the QA file? ')
    number_of_questions = int(input('How many questions should be asked? '))
    questions_answers = load_questions_and_answers(file_name)
    correct_count = 0
    for i in range(number_of_questions):
        if ask_question(questions_answers)
            correct_count += 1
    print('You got', correct_count, 'out of', number_of_questions, 'correct.')
    print('Your percentage grade: ' + str(correct_count / number_of_questions * 100) + '%')

You will need to implement the load_questions_and_answers, ask_question, and get_random_question functions.

The load_questions_and_answers Function

This function will have a parameter that specifies which file to open. It should open the file, iterate through the lines, and load the question and answers as the keys and values into a dictionary. When finished, the dictionary should be returned. For Example, if q.txt has this content:

Question 1?|||Answer 1
Question 2?|||Answer 2

When load_questions_and_aswers('q.txt') is called, it should return the following dictionary:

{'Question 1': 'Answer1', 'Question 2': 'Answer 2'}

The get_random_question Function

This function should pick a random question (key) from the dictionary and return it. The parameter will be a dictionary containing the mapping between questions and answers. It should return only one string.

For example, this code:

qa = {'Question 1?': 'Answer 1', 'Question 2?': 'Answer 2'}
print( get_random_question(qa) )

Could print out either Question 1? or Question 2?, depending on what random value is chosen. Of course, you’ll need to use the random python module for this task.

The ask_question Function

This function must handle asking the user question. In order, this function should:

• Call get_random_question
• Print out this question and then ask the user for input.
• If the answer is correct, remove the question from the dictionary and return True
• If the incorrect answer is given, leave the question and return False This question does not contain test-cases, but you can test it for yourself when you go to put everything together!

Conclusion

After you complete the above three functions, you can try putting all three of them and the provided main function into your IDE and trying it out. You can also download the pre-made solution file with the link below.

Solution Code