Wrap it in a name

A function is a named bundle of steps. Define it once with def, then call it by name whenever you need it. Functions can take inputs in the parentheses and hand back a result with return.

How it reads

• def greet(name): defines a function called greet that takes one input, name
• The indented body runs only when you call the function
• return hands a value back to whoever called it

Cloud tip: Define a function once, call it as many times as you like. That is how you stop repeating yourself.