Calculator.py

# Program make a 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):
    return x / y


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


def remainder(x, y):
    return x % y


print("Select operation.")
print("1.Add")
print("2.Subtract")
print("3.Multiply")
print("4.Divide")
print("5.Exponent")
print("6.Remainder")

while True:
    choice = input("Enter choice(1/2/3/4/5/6): ")

    if choice in ('1', '2', '3', '4', '5', '6'):
        num1 = float(input("Enter first number: "))
        num2 = float(input("Enter second number: "))

        if choice == '1':
            print(num1, "+", num2, "=", add(num1, num2))

        elif choice == '2':
            print(num1, "-", num2, "=", subtract(num1, num2))

        elif choice == '3':
            print(num1, "*", num2, "=", multiply(num1, num2))

        elif choice == '4':
            print(num1, "/", num2, "=", divide(num1, num2))

        elif choice == '5':
            print(num1, "^", num2, "=", exponent(num1, num2))

        elif choice == '6':
            print(num1, "%", num2, "=", remainder(num1, num2))

        # check if user wants another calculation
        next_calculation = input("Do you want to do more calculation.Type 'yes' to continue your calculations. ")
        if next_calculation != "yes":
            print("Thank you for using me. Have a great day ahead!")
            break
    else:
        print("Invalid Input")