SimpleCalculator.py

def add(a, b):
    return a + b


def subtract(a, b):
    return a - b


def multiply(a, b):
    return a * b


def divide(a, b):
    try:
        return a / b
    except ZeroDivisionError:
        return "Zero Division Error"

def main():
    print("Select Operation")
    print("1.Add")
    print("2.Subtract")
    print("3.Multiply")
    print("4.Divide")

    choice = input("Enter Choice(+,-,*,/): ")
    num1 = int(input("Enter first number: "))
    num2 = int(input("Enbter Second number:"))

    if choice == '+':
        print(num1, "+", num2, "=", add(num1, num2))

    elif choice == '-':
        print(num1, "-", num2, "=", subtract(num1, num2))

    elif choice == '*':
        print(num1, "*", num2, "=", multiply(num1, num2))

    elif choice == '/':
        print(num1, "/", num2, "=", divide(num1, num2))
    else:
        print("Invalid input")
        main()
main()