91Ó°ÊÓ

An exception is an event that occurs during the execution of a program that disrupts its normal flow. It is typically an error or an undesired situation which the program should not encounter. In case it does, handling the exception is crucial to prevent the abrupt termination of the program.

If an exception is thrown and the program does not handle it, the program will terminate abruptly. This means that the code after the point where the exception was thrown will not be executed, and the user will get an error message showing the details of the exception.

Handling exceptions is important for various reasons: 1. It prevents the program from terminating abruptly, making it more robust. 2. Handling exceptions can help in gracefully recovering from the errors or undesired situations. 3. Proper handling of exceptions can provide meaningful error messages to the users so that they can understand what went wrong and possibly how to fix it.

Let's consider a simple example to demonstrate the impact of not handling exceptions: Without exception handling: ```python def divide(a, b): return a / b result = divide(10, 0) print("Result:", result) ``` This code will throw a ZeroDivisionError exception and terminate the program abruptly, without printing "Result: ". With exception handling: ```python def divide(a, b): try: result = a / b except ZeroDivisionError: print("Error: Division by zero is not allowed.") result = None return result result = divide(10, 0) print("Result:", result) ``` In this example, the ZeroDivisionError exception is caught and handled, printing "Error: Division by zero is not allowed." and setting the result to None. Then, the normal flow of the program continues, printing "Result: None".