Why scope matters in Python - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print the value of the variable inside the function.

Python

def greet():
    message = 'Hello!'
    print([1])
greet()

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

Aprint

Bgreet

Cmessage

DHello

Attempts:

3 left

💡 Hint

Common Mistakes

Using the function name instead of the variable.

Trying to print a string without quotes.

Using a variable not defined in the function.

The variable message is defined inside the function, so we use its name to print its value.

2fill in blank

medium

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

Python

count = 5
def show_count():
    print([1])
show_count()

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

Acount

B5

Cshow_count

Dprint

Attempts:

3 left

💡 Hint

Common Mistakes

Using the function name instead of the variable.

Trying to print the number directly without the variable.

Using a variable not defined globally.

The variable count is defined outside the function, but it can be accessed inside because it is global.

3fill in blank

hard

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

Python

counter = 10
def increase():
    global [1]
    counter += 1
increase()
print(counter)

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

Acounter

Bincrease

Ccount

Dglobal

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different variable name in the global statement.

Forgetting the global keyword.

Trying to modify the variable without declaring it global.

To change a global variable inside a function, you must declare it with global and use the exact variable name.

4fill in blank

hard

Fill both blanks to create a local variable and print it inside the function.

Python

def show():
    [1] = 'Local'
    print([2])
show()

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

Atext

Bmessage

Dprint

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names for assignment and print.

Trying to print a function name.

Using a keyword like print as a variable.

The variable text is created locally and printed inside the function.

5fill in blank

hard

Fill all three blanks to create a global variable, modify it inside a function, and print the updated value.

Python

value = 3
def update():
    global [1]
    [2] += 7
update()
print([3])

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

Avalue

Dupdate

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names in different places.

Forgetting the global keyword.

Trying to print the function name instead of the variable.

We declare value as global, modify it inside the function, and print it outside.