Try–except execution flow in Python - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to catch a division by zero error.

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 a wrong exception type like ValueError or TypeError.

Not catching the exception at all.

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

2fill in blank

medium

Complete the code to print a message when no error occurs.

Python

try:
    print("Hello")
except Exception:
    print("Error occurred")
else:
    [1]

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

Apass

Bprint("No errors!")

Craise

Dbreak

Attempts:

3 left

💡 Hint

Common Mistakes

Using raise inside else which re-raises an error.

Using break outside loops causing syntax error.

The else block runs only if no exception occurs. Printing a message here confirms no errors happened.

3fill in blank

hard

Fix the error in the except block to catch any exception.

Python

try:
    x = int('abc')
except [1]:
    print("Caught an error")

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

AException

BError

CBaseException

DValueError

Attempts:

3 left

💡 Hint

Common Mistakes

Using Error which is not a built-in exception class.

Using BaseException which is too broad and not recommended.

Exception is the base class for most errors and is commonly used to catch any error except system-exiting ones.

4fill in blank

hard

Fill both blanks to handle a file error and print a message.

Python

try:
    with open('file.txt', '[1]') as f:
        content = f.read()
except [2]:
    print("File not found")

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

Ar

Bw

CFileNotFoundError

DIOError

Attempts:

3 left

💡 Hint

Common Mistakes

Using write mode 'w' which creates the file instead of reading.

Catching IOError which is more general than FileNotFoundError.

Opening a file for reading uses mode 'r'. If the file does not exist, Python raises FileNotFoundError.

5fill in blank

hard

Fill all three blanks to handle multiple exceptions and print the error type.

Python

try:
    num = int(input('Enter a number: '))
    result = 10 / num
except [1]:
    print("Cannot convert input to integer")
except [2]:
    print("Division by zero error")
except [3]:
    print("Some other error occurred")

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

AValueError

BZeroDivisionError

CException

DTypeError

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up exception types and their purposes.

Not including a general exception handler.

ValueError handles invalid integer conversion, ZeroDivisionError handles division by zero, and Exception catches any other errors.