Python Try Statement

Python try statement

Created By: chatGPT

Python provides a way to handle exceptions using the try statement, which allows you to write code that can throw exceptions while also enabling you to manage those exceptions gracefully. The general structure includes a try block and one or more except blocks to catch and handle exceptions. It can also include finally to execute code regardless of whether an exception occurred. Here’s an example:

try:
    # Attempt to divide by zero
    result = 10 / 0
except ZeroDivisionError:
    print("You can't divide by zero!")
else:
    print("Division successful, result is:", result)
finally:
    print("Execution completed.")

In this example, the code inside the try block attempts to divide a number by zero, which generates a ZeroDivisionError. The except block catches the exception and prints a friendly message. The optional else block will execute if no exceptions occur, while finally will always execute, ensuring any necessary cleanup.

try:
    # Read a file
    with open('file.txt', 'r') as file:
        content = file.read()
except FileNotFoundError:
    print("File not found!")
else:
    print("File content:", content)
finally:
    print("File operation completed.")

You can also handle multiple exceptions simultaneously by specifying them in a tuple in the except clause. This is useful when you want to handle different types of errors in a similar way.

try:
    # Convert user input to an integer
    num = int(input("Enter a number: "))
except (ValueError, TypeError):
    print("Invalid input! Please enter a valid number.")
else:
    print("You entered:", num)
finally:
    print("Input operation completed.")