Track 5 · Lesson 3 of 12

Return values

Send a result back to the caller with return, understand why that is different from print, and recognise None.

You will be able to

• Return a value from a function and use it in further calculations
• Explain the difference between returning a value and printing it
• Use return to leave a function early when the answer is already known
• Recognise that a function without return gives back None, and spot the errors this causes