PyReusable CodeBeginnerLive Python12 min

Functions

Group reusable code under a name with parameters and return values.

Explanation cell

Functions group reusable code under a name. They can receive input through parameters and send a result back using return.

defparametersreturn values

Quick tip

Use return when a function should send a value back to the caller.

Common mistake

Calling a function before it is defined can make examples harder to follow.

Code cell

Starter code · Ctrl+Enter runs · Ctrl+Shift+Enter tests

Python runtime loads on first run

Output cell

Run your code to see output.

Run your code to see output.

Test cell

Tests run against the actual Python output.

Run tests to check your code against the lesson goals.

Practice cell

Try this

Create an add function that returns the sum of two numbers.

Expected output

Hello Ada