simple_calculator.py

# Simple Calculator 

def calculate(num1, num2, operator):
    match operator:
        case '+':
            return num1 + num2
        case '-':
            return num1 - num2
        case '*':
            return num1 * num2
        case '/': 
            if num2 != 0:
                return num1 / num2
            else:
                print("Error: Division by zero")
                exit()
        case _:
            print("Error: Invalid operator")
            exit()

def main(): 
    try:
        num1 = float(input("Enter the first number: "))
        operator = input("Enter the operator (+, -, *, /): ")
        num2 = float(input("Enter the second number: "))
        result = calculate(num1, num2, operator)
        print(f"The result is: {result}")
    except ValueError:
        print("Error: Invalid input. Please enter numeric values.")
        exit()

if __name__ == "__main__":
    main()