Define and call — Functions

1. Define and call

A function is a reusable block of code with a name. You define it with def, a name, parentheses and a colon. The body is indented four spaces:

def starts the definition; function_name is the name you choose.
The empty parentheses mean the function takes no parameters.
The body runs only when you call the function: its name followed by parentheses.
Defining a function prints nothing; calling it can be repeated as many times as you need.

#01

Define and call a function

Define a function named say_hello with no parameters. Its body must print Hello!. Then call it once.

Print exactly:

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#02

Call the function twice

Define say_hello with no parameters. Its body must print Hello!. Call it twice, one call after the other. Each call runs the body again.

Print exactly:

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#03

Put several statements in the body

A function body can contain more than one statement. Define show_menu with no parameters. Its body must print Coffee, then Tea, in that order. Call it once.

Print exactly:

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#04

Call a function inside a loop

Define cheer with no parameters. Its body must print Go!. Use a for loop over range(3) and call cheer() inside the loop.

Print exactly:

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