s0208.py

should_continue: bool = True
while should_continue:
    print("Je vais évaluer un calcul pour vous.")

    number1_string: str = input("Tapez le premier nombre:")
    number1: int = int(number1_string)

    number2_string: str = input("Tapez le second nombre:")
    number2: int = int(number2_string)

    operation: str = input("Tapez l'opération: ")
    if operation == "+":
        result = number1 + number2
        print(f"{number1} + {number2} = {result}")
    else:
        print(f"Désolé, je ne connais pas l'opération '{operation}'.")

    maybe_quit: str = input("Tapez 'q' pour quitter, ou autre chose pour recommancer: ")
    if maybe_quit == 'q':
        print("Bye!")
        should_continue = False