Exception Handling

Vulpe · 14 Nis 2023

Exception handling is a way to deal with runtime errors that can occur during program execution in a more controlled way. In Python, exceptions are raised when an error or an unexpected condition occurs during the execution of a program. By using exception handling, we can catch these errors and take appropriate actions, such as logging an error message, retrying the operation, or terminating the program gracefully.

The basic syntax for handling exceptions in Python is:

Python:

try:
    # code that may raise an exception
except ExceptionType:
    # code to handle the exception
else:
    # code to execute if no exception is raised
finally:
    # code to execute regardless of whether an exception is raised or not

Here is an example of how to use exception handling in Python:

Python:

try:
    num1 = int(input("Enter a number: "))
    num2 = int(input("Enter another number: "))
    result = num1 / num2
    print("The result is:", result)
except ZeroDivisionError:
    print("Error: Cannot divide by zero")
except ValueError:
    print("Error: Invalid input")
else:
    print("No exception was raised")
finally:
    print("This will always execute, regardless of whether an exception was raised or not")

In this example, we use a try block to enclose the code that may raise an exception. If an exception is raised, the program jumps to the except block that matches the exception type. In this case, if a ZeroDivisionError or a ValueError is raised, the corresponding error message is printed. If no exception is raised, the program jumps to the else block, where a message is printed indicating that no exception was raised. Finally, the finally block is executed regardless of whether an exception was raised or not.

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Exception Handling

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