Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.Apprendre Additional Elements | Handling Structure
Error Handling in Python

bookAdditional Elements

The full handle structure has 2 additional elements: else and finally.

Look at the example:


              
1234567891011121314151617181920

            
def divide_numbers(a, b):
    try:
        result = a / b
    except ZeroDivisionError as error:
        print("(except) ZeroDivisionError: Cannot divide by zero.")
    except TypeError as error:
        print("(except) TypeError: Invalid data type for division.")
    else:
        print("(else) Division result:", result)
    finally:
        print("(finally) Finally block executed.")

# Example usage:
print("=== CASE 1 ===")
divide_numbers(10, 2)       # This will execute the else block and finally block.
print("=== CASE 2 ===")
divide_numbers(5, 0)        # This will raise a ZeroDivisionError, execute the except block, and the finally block.
print("=== CASE 3 ===")
divide_numbers(10, "two")   # This will raise a TypeError, execute the except block, and the finally block.
copy

As you can see, the code handles different exceptions appropriately and ensures:

  • the else block is executed when errors are not raised;
  • the finally block is executed in all cases.

Handle Structure Diagram

Tout était clair ?

Comment pouvons-nous l'améliorer ?

Merci pour vos commentaires !

Section 1. Chapitre 6

Demandez à l'IA

expand

Demandez à l'IA

ChatGPT

Posez n'importe quelle question ou essayez l'une des questions suggérées pour commencer notre discussion

Suggested prompts:

Posez-moi des questions sur ce sujet

Résumer ce chapitre

Afficher des exemples du monde réel

bookAdditional Elements

Glissez pour afficher le menu

The full handle structure has 2 additional elements: else and finally.

Look at the example:


              
1234567891011121314151617181920

            
def divide_numbers(a, b):
    try:
        result = a / b
    except ZeroDivisionError as error:
        print("(except) ZeroDivisionError: Cannot divide by zero.")
    except TypeError as error:
        print("(except) TypeError: Invalid data type for division.")
    else:
        print("(else) Division result:", result)
    finally:
        print("(finally) Finally block executed.")

# Example usage:
print("=== CASE 1 ===")
divide_numbers(10, 2)       # This will execute the else block and finally block.
print("=== CASE 2 ===")
divide_numbers(5, 0)        # This will raise a ZeroDivisionError, execute the except block, and the finally block.
print("=== CASE 3 ===")
divide_numbers(10, "two")   # This will raise a TypeError, execute the except block, and the finally block.
copy

As you can see, the code handles different exceptions appropriately and ensures:

  • the else block is executed when errors are not raised;
  • the finally block is executed in all cases.

Handle Structure Diagram

Tout était clair ?

Comment pouvons-nous l'améliorer ?

Merci pour vos commentaires !

Section 1. Chapitre 6
some-alt