Try–except–finally behavior in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to catch a ZeroDivisionError.

Python

try:
    result = 10 / 0
except [1]:
    print("Cannot divide by zero")

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

AZeroDivisionError

BValueError

CTypeError

DIndexError

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong exception type like ValueError or TypeError.

Not catching any exception and letting the program crash.

The ZeroDivisionError is raised when dividing by zero. Catching it allows the program to handle this error gracefully.

2fill in blank

medium

Complete the code to always print 'Done' after the try-except block.

Python

try:
    x = int('abc')
except ValueError:
    print('Invalid number')
finally:
    [1]('Done')

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

Ainput

Breturn

Cprint

Draise

Attempts:

3 left

💡 Hint

Common Mistakes

Using input instead of print.

Trying to raise an exception inside finally without reason.

The finally block runs no matter what. Using print here outputs 'Done' always.

3fill in blank

hard

Fix the error in the except clause to catch the correct exception.

Python

try:
    numbers = [1, 2, 3]
    print(numbers[5])
except [1]:
    print('Index out of range')

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

AKeyError

BTypeError

CValueError

DIndexError

Attempts:

3 left

💡 Hint

Common Mistakes

Using KeyError which is for dictionaries.

Using ValueError which is for wrong values.

Accessing an invalid list index raises IndexError. Catching this exception handles the error properly.

4fill in blank

hard

Fill both blanks to catch a ValueError and print a message, then always print 'Finished'.

Python

try:
    num = int('abc')
except [1]:
    print('Conversion failed')
finally:
    [2]('Finished')

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

AValueError

Bprint

CZeroDivisionError

Dinput

Attempts:

3 left

💡 Hint

Common Mistakes

Catching the wrong exception type.

Using input instead of print in finally.

The except block catches ValueError from invalid int conversion. The finally block prints 'Finished' always.

5fill in blank

hard

Fill all three blanks to catch a KeyError, print the error message, and always print 'End'.

Python

my_dict = {'a': 1}
try:
    value = my_dict[[1]]
except [2] as e:
    [3](f'Error: {e}')
finally:
    print('End')

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

A'b'

BKeyError

Cprint

D'a'

Attempts:

3 left

💡 Hint

Common Mistakes

Using a key that exists, so no error occurs.

Catching the wrong exception type.

Not printing the error message correctly.

Accessing key 'b' causes a KeyError. Catching it as e allows printing the error message. The finally block prints 'End' always.