#### print("   Welcome to my calculator   ")

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

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

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

def divi(x, y):
    return x / y

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

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

def flord(x, y):
    return x // y

Calculatorfile = open("my_calculator.txt","+a")


while True:
    operation=input("What oparation do you want to perform\n 1.Addition\n 2.Subtraction\n 3.Mulitplaction\n 4.Division\n 5.Exponents\n 6.Percentages\n 7.Floor division\n \n")
  
    
    num1=float(input("Enter first number"))
    num2=float(input("Enter seconed number"))

    if(operation== "1"):
        print("{} + {} = {}".format(num1, num2, add(num1, num2)))
        data = ("{} + {} = {}/n".format(num1, num2, add(num1, num2)))
        Calculatorfile.write(data)
    
    elif(operation== "2"):
        print("{} - {} = {}".format(num1, num2, subtract(num1, num2)))
        data = ("{} - {} = {}/n".format(num1, num2, subtract(num1, num2)))
        Calculatorfile.write(data)
        
    elif(operation== "3"):
        print("{} * {} = {}".format(num1, num2, multi(num1, num2)))
        data = ("{} * {} = {}/n".format(num1, num2, multi(num1, num2)))
        Calculatorfile.write(data)
        
    elif(operation== "4"):
        print("{} / {} = {}".format(num1, num2, divi(num1, num2))) 
        data = ("{} / {} = {}/n".format(num1, num2, divi(num1, num2))) 
        Calculatorfile.write(data)
        
    elif(operation== "5"):
        print("{} ^ {} = {}".format(num1, num2, expon(num1, num2)))
        data = ("{} ^ {} = {}/n".format(num1, num2, expon(num1, num2)))
        Calculatorfile.write(data)
        
    elif(operation== "6"):
        print("{} % {} = {}".format(num1, num2, percent(num1, num2)))
        data = ("{} % {} = {}/n".format(num1, num2, percent(num1, num2)))
        Calculatorfile.write(data)
        
    elif(operation== "7"):
        print("{} // {} = {}".format(num1, num2, flord(num1, num2)))
        data = ("{} // {} = {}/n".format(num1, num2, flord(num1, num2)))
        Calculatorfile.write(data)



 

    
    reDo = input("Go Again? press <Enter> for yes, or n for no")
    if reDo == "n" or reDo == "N":
        print("Goodbyeee")
        Calculatorfile.write("                                                        \n")
        Calculatorfile.close()
        break

What oparation do you want to perform
 1.Addition
 2.Subtraction
 3.Mulitplaction
 4.Division
 5.Exponents
 6.Percentages
 7.Floor division
 
6
Enter first number1000 
Enter seconed number500
1000.0 % 500.0 = 0.0

2