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

Practice - 5 Tasks

1fill in blank

easy

Complete the code to catch a ZeroDivisionError exception.

Python

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

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

AValueError

BIndexError

CZeroDivisionError

DTypeError

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong exception type like ValueError or TypeError.

Not catching any exception.

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

2fill in blank

medium

Complete the code to print 'Success' only if no exception occurs.

Python

try:
    x = 5 / 1
except ZeroDivisionError:
    print("Error")
else:
    print([1])

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

A"Failed"

B"Done"

C"Error"

D"Success"

Attempts:

3 left

💡 Hint

Common Mistakes

Putting the success message inside except block.

Not using quotes around the string.

The else block runs only if the try block has no exceptions. So it prints "Success" here.

3fill in blank

hard

Fix the error in the code to correctly handle exceptions and print 'No error' if none occur.

Python

try:
    value = int('abc')
except ValueError:
    print("Conversion failed")
else:
    print([1])

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

A"No error"

BNo error

CNoError

Dno error

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes around the string in print.

Using undefined variable names.

The print statement needs a string in quotes. Without quotes, it causes a NameError.

4fill in blank

hard

Fill both blanks to create a try-except-else that prints the square root if no error occurs and prints 'Error' if a ValueError happens.

Python

import math

try:
    num = int(input('Enter a number: '))
    result = math.sqrt(num)
except [1]:
    print('Error')
else:
    print([2])

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

AValueError

BTypeError

Cresult

Dnum

Attempts:

3 left

💡 Hint

Common Mistakes

Catching the wrong exception type.

Printing the input number instead of the result.

The except block should catch ValueError from invalid int conversion. The else block prints the computed result.

5fill in blank

hard

Fill all three blanks to create a try-except-else that divides two numbers, catches ZeroDivisionError, and prints the quotient if no error.

Python

try:
    numerator = 10
    denominator = 2
    quotient = numerator [1] denominator
except [2]:
    print('Cannot divide by zero')
else:
    print([3])

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

A/

BZeroDivisionError

Cquotient

D*

Attempts:

3 left

💡 Hint

Common Mistakes

Using multiplication instead of division.

Catching the wrong exception.

Printing the wrong variable.

The division operator is /. The exception to catch is ZeroDivisionError. The else block prints the quotient.