How does Python handle error handling and exceptions?

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In Python, error handling and exceptions are managed using the try-except block. This mechanism allows you to catch errors and handle them gracefully without stopping the execution of the program. Here's how Python handles exceptions:

1. Basic Syntax

Python uses try, except, else, and finally keywords to handle exceptions.

2. Try and Except

• The try block contains code that might raise an exception.

• If an exception occurs, the program jumps to the except block where the exception is handled.

3. Exception Types

Python provides built-in exceptions like Zero Division Error, Value Error, Type Error, etc., but you can also define custom exceptions by subclassing the Exception class.

4. Else and Finally

• The else block runs only if no exception was raised in the try block.

• The finally block executes regardless of whether an exception occurred, making it useful for cleanup tasks like closing files or releasing resources.

5. Raising Exceptions

Python also allows you to manually raise exceptions using the raise keyword, which is useful for validating inputs or managing errors in your custom code.

In summary, Python’s exception handling structure provides a flexible way to manage errors and keep the program running smoothly, while also allowing you to customize how specific errors are handled.

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