exception handling in python

What is Exception Handling? 

Exception handling is a technique used in programming to deal with errors that occur during program execution. In Python, we use try and except blocks to handle exceptions. The try block contains the code that might raise an exception. If an exception occurs, it jumps to the corresponding except block, which contains the code to handle the exception. By using exception handling, we can prevent our program from crashing and provide meaningful error messages to the user.

Basic Syntax of Exception Handling:

try:

# x is not define so program raise error
    print(x)
except:

# this block handle exception 
    print("Exception occurred")

In Python, the keywords used for exception handling are try, except, else, and finally.

Try and Except:

For Example:

try: 
    # Code that may raise an exception 
    x = 10 / 0   # division by zero error 
except: 
    # Code to handle the exception 
    print("An exception occurred!")

Else clause:

For Example:

In Python, the else clause can be used in exception handling to specify a block of code that should be executed if no exception is raised in the try block.

try: 
    # Code that may raise an exception 
    x = 10 / 0   # division by zero error 
except: 
    # Code to handle the exception 

    print("An exception occurred!")
else:
# Code to execute if no exception is raised
    print("Program closed")

Finally:

In Python, finally is a keyword that is used in exception handling to define a block of code that will be executed regardless of whether an exception is thrown or not.

The finally block is placed after the try and except blocks, and its purpose is to provide a clean-up operation that must be performed, regardless of whether an exception occurred or not.

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