Why functions are needed in Python - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to define a function named greet.

Python

def [1]():
    print("Hello!")

Drag options to blanks, or click blank then click option'

Agreet

Bhello

Csay_hello

Dwelcome

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different function name than the one called later.

The function name must be greet to match the call.

2fill in blank

medium

Complete the code to call the function greet.

Python

def greet():
    print("Hello!")

greet[1]

Drag options to blanks, or click blank then click option'

A(None)

B[]

C()

D{}

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting parentheses when calling a function.

Functions are called with parentheses () even if they have no inputs.

3fill in blank

hard

Fix the error in the function definition to print a message.

Python

def greet[1]:
    print("Hello!")

Drag options to blanks, or click blank then click option'

A(void)

B{}

C[]

D()

Attempts:

3 left

💡 Hint

Common Mistakes

Leaving out parentheses in function definitions.

Function definitions require parentheses () after the name, even if no parameters.

4fill in blank

hard

Fill both blanks to create a function that prints a message twice.

Python

def repeat_message():
    for _ in [1](2):
        print([2])

Drag options to blanks, or click blank then click option'

Arange

B"Hello!"

C2

Dprint

Attempts:

3 left

💡 Hint

Common Mistakes

Using a number instead of a range for looping.

Printing a function instead of a string.

Use range(2) to repeat twice and print the message string.

5fill in blank

hard

Fill all three blanks to create a function that adds two numbers and returns the result.

Python

def add_numbers([1], [2]):
    result = [1] + [2]
    return result

Drag options to blanks, or click blank then click option'

Aa

Bb

Cresult

Dsum

Attempts:

3 left

💡 Hint

Common Mistakes

Using the same name for parameters and result variable.

Forgetting to return the result.

The function takes two inputs a and b, adds them, and stores in result.