Global keyword in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to modify the global variable inside the function.

Python

count = 0

def increment():
    global [1]
    count += 1

increment()
print(count)

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

Aglobal

Bcount

Cincrement

Dvalue

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to use the global keyword causes an error or no change to the global variable.

Using a wrong variable name after global.

The global keyword tells Python to use the global variable count inside the function, so it can be modified.

2fill in blank

medium

Complete the code to correctly update the global variable inside the function.

Python

total = 10

def add_five():
    global [1]
    total += 5

add_five()
print(total)

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

Asum

Badd_five

Cfive

Dtotal

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different variable name after global than the one declared globally.

Not using global keyword and expecting the global variable to change.

The function uses global total to modify the global variable total by adding 5.

3fill in blank

hard

Fix the error by completing the code to modify the global variable inside the function.

Python

counter = 5

def reset():
    [1] counter
    counter = 0

reset()
print(counter)

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

Aglobal

Blocal

Cnonlocal

Ddef

Attempts:

3 left

💡 Hint

Common Mistakes

Using nonlocal instead of global when the variable is global.

Not using any keyword and trying to assign to the global variable.

The global keyword is needed to tell Python that counter inside the function refers to the global variable, so it can be reset.

4fill in blank

hard

Fill in the blank to correctly modify two global variables inside the function.

Python

x = 1
y = 2

def update():
    [1] x, y
    x += 10
    y += 20

update()
print(x, y)

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

Anonlocal

Blocal

Cglobal

Ddef

Attempts:

3 left

💡 Hint

Common Mistakes

Using nonlocal instead of global.

Declaring only one variable as global and not the other.

Use global for both variables to modify them inside the function.

5fill in blank

hard

Fill in the blank to correctly use the global keyword and modify variables inside the function.

Python

a = 5
b = 10
c = 15

def change_values():
    [1] a, b, c
    a += 1
    b += 2
    c += 3

change_values()
print(a, b, c)

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

Aglobal

Ba

Cb

Dc

Attempts:

3 left

💡 Hint

Common Mistakes

Not declaring all variables as global.

Using variable names without the global keyword.

The global keyword is used to declare variables a, b, and c as global so they can be modified inside the function.