# Introduction to Python Exception Handling Exception handling is an important concept in programming languages. It is used to handle potential errors that can occur in a program. Python provides an extensive set of built-in exceptions and support for user-defined exceptions. This article is a brief overview of Python exception handling and how it can be used to improve the stability and performance of a program. Exception handling is a feature of Python that helps developers to handle errors and unexpected conditions in the program. It allows developers to define custom exception types, handle errors, and take appropriate action depending on the type of exception encountered. Exception handling also allows programs to execute in a controlled manner when an error is encountered. This makes it easier to debug and maintain the program. When an exception is encountered, the Python interpreter will immediately stop the current execution and jump to the nearest exception handler. The exception handler will then determine what type of exception occurred, and take appropriate action. Depending on the type of exception, the exception handler may display an error message, or take corrective action such as restarting the program or exiting. Python provides a number of built-in exceptions, as well as the ability to create user-defined exceptions. Built-in exceptions are raised automatically when certain errors occur, such as when trying to access an invalid index in a list. User-defined exceptions can be used to raise custom errors, such as when a function receives invalid arguments. Exception handling is an important tool for improving the stability and performance of a program. By providing robust exception handling, it is possible to ensure that the program will continue to execute without crashing when an error is encountered. Furthermore, it makes debugging and maintenance easier, since the exception handler can pinpoint the exact source of the error.

: Exception Handling in Python is the process of catching errors that occur during the execution of a program and either processing them or raising them so that they can be handled by a higher level of code. ## Sample Code try: # code to execute except ExceptionType1: # code to handle ExceptionType1 except ExceptionType2: # code to handle ExceptionType2 else: # code to execute if no exceptions were raised finally: # code to execute regardless of any exceptions raised