Page 290 - CTS - CSA TP - Volume 2

COMPUTER SOFTWARE APPLICATION - CITS

TASK 3: Custom Exception
# Example 3: Custom Exception
classCustomError(Exception):
pass

try:
user_input=input(“Enter ‘raise’ to simulate a custom exception: “)
ifuser_input.lower() ==’raise’:
raiseCustomError(“This is a custom exception.”)

exceptCustomErrorase:
print(f”CustomError caught: {e}”)
else:
print(“No exception raised.”)
finally:
print(“Exception handling completed.”)

Explanation:
• We define a custom exception CustomError.
• If the user enters ‘raise’, we deliberately raise the custom exception.
• exceptCustomError as e catches the custom exception and prints the error message.

• else block executes if no exception is raised.
• finally block always executes.
Output:

TASK 4: User Authentication
correct_username=”user123”

correct_password=”password123”
try:
username=input(“Enter your username: “)
password=input(“Enter your password: “)

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CITS : IT & ITES - Computer Software Application - Exercise 131 CITS : IT & ITES - Computer Software Application - Exercise 131