Learn Python · lesson 24 of 24

Project: a quiz scorer

Write a function score(answers) that counts how many answers equal "yes", then print the result as You scored 3 out of 5 (use the length of the list for the out of number).

Learn

Time to use everything. A list of answers, a function, a loop, an if and an f-string can already make something useful. Plan it first: which answers are right, count the correct ones, then report the score and a message.

Your task

Write a function score(answers) that counts how many answers equal "yes", then print the result as You scored 3 out of 5 (use the length of the list for the out of number).

← Functions that decide

Python

Press Run to see what your program prints.

Keep going in Learn Python

Functions: your own instructions

Write a function called cheer that prints Hip hip hooray! and call it twice.

Start →22

Giving a function information

Write a function double that returns its input times 2, and print double(21).

Start →23

Functions that decide

Write is_even(n) that returns True for even numbers and False for odd ones, then use it in a loop to print the even numbers from 1 to 6.

Start →

Practise the idea

🔮 Play Predict the Output

Read a short Python program and choose what it prints. Then watch it run for real.

Play now

FAQ

Project: a quiz scorer: common questions

I am stuck. What can I do?

Press Hint for a nudge, read the message next to each goal, and compare your code with the lesson text. If you still need it, Show answer reveals a model solution. Try to type it yourself rather than copy it.

Does my work get saved?

Your ticks and XP are saved in this browser, and in your account if you log in. The code you type is not stored on a server.

Start a conversation

Enjoying coding? Meet a teacher.

Tell us the learner's age, country and what they would like to build, and we will suggest a class. A parent or guardian can make the enquiry.

Tell us the learner’s age or grade and goals
We’ll suggest a suitable class or learning path
We’ll confirm format, timing and fees with a parent or guardian

Play it, don't just read it

Write some code right now

Free games that need no sign-up. Pick one and play for five minutes.

All free games →

Pick a game

Today's maths challengeFive questions · the same for everyone today · keep your streak goingPlay