# imports
from datetime import datetime

# variables
world = '🌍🌎🌏'
python = 'Python 🐍'
fire = '🔥'

# Function definitions

# Put code to run under here
print(f'Hello {world}')
print(f'Welcome to {python}')
print(f'{python} is good at maths!')
print(f'{111111111 * 111111111}')
print(f'The date and time is {datetime.now()}')

_{Project 1 — Step 9 of 16}

⭐ Step 9 — Functions

Functions are little chunks of code that do one job. Once you make a function, you can use it again and again.

Here’s an example:

def add_one_and_one():
    x = 1 + 1
    print(x)

This function is called add_one_and_one. The two lines inside it are pushed in (indented) by 4 spaces — that’s how Python knows those lines belong to the function.

To run the function you call it by name with ():

add_one_and_one()

✏️ What to do

Nothing to add yet — just read the example above. Tap ▶ Run to check your program still works the same as last step.

# imports
from datetime import datetime

# variables
world = '🌍🌎🌏'
python = 'Python 🐍'
fire = '🔥'

# Function definitions

# Put code to run under here
print(f'Hello {world}')
print(f'Welcome to {python}')
print(f'{python} is good at maths!')
print(f'{111111111 * 111111111}')
print(f'The date and time is {datetime.now()}')

🔍 Tip

Next step we’ll write a roll_dice function for our program.

Next → Step 10

_{⬅ Back to Step 8}

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_{Adapted from Raspberry Pi Foundation — Hello World under CC BY-SA 4.0.}