Python Basics · Functions · Lesson 13 of 36
Return Values
Concept
Return Values
return sends a value back to the caller and immediately ends the function. Without it, a function returns None.
A function can return multiple values at once as a tuple, which the caller can then unpack into separate variables.
- Explain the core idea behind Return Values.
- Predict output before running a change.
- Test one realistic and one unusual input.
- Use the result to make the next decision.
- 1. Read one concept.
- 2. Change the example.
- 3. Run, compare, and explain.
- 4. Complete the challenge below.
Self-check before continuing
Without looking at the example, describe what changes when you modify one input in Return Values. Then reopen the editor and prove your explanation with a small test.
You are ready to continue when you can predict, test, and explain the result.
Your turn
Write a function that returns both the sum and the product of two numbers as a tuple.
Ask about this lesson or your next move. The guide explains the path without taking the work away from you.
Ready for the next lesson?
Mark this lesson complete when you have finished the exercise.
Console