simple-calculator.py

# Simple Calculator

def add(x, y):
    return x + y


def subtract(x, y):
    return x - y


def multiply(x, y):
    return x * y


def divide(x, y):
    if y == 0:
        return "Cannot divide by zero!"
    return x / y


while True:
    print("\n--- Calculator ---")
    print("1. Addition (+)")
    print("2. Subtraction (-)")
    print("3. Multiplication (*)")
    print("4. Division (/)")
    print("5. Exit")

    choice = input("Choose an operation (1-5): ")

    if choice == "5":
        print("Calculator closed.")
        break

    if choice in ("1", "2", "3", "4"):
        num1 = float(input("Enter first number: "))
        num2 = float(input("Enter second number: "))

        if choice == "1":
            result = add(num1, num2)

        elif choice == "2":
            result = subtract(num1, num2)

        elif choice == "3":
            result = multiply(num1, num2)

        elif choice == "4":
            result = divide(num1, num2)

        print("Result:", result)

    else:
        print("Invalid choice. Please select between 1-5.")