Basic Piton Calculator

[Nykeriab]

I'm new to Python. I tried to make a simple calculator, but I can't find a problem. Any assistance with this will be accepted with gratitude. Thank you.

def add(num1, num2):
    return num1 + num2
def subtract(num1, num2):

return num1 - num2
def div(num1, num2):

return num1/num2
def multi(num1,num2):

return num1*num2
def main():

operation = input("What do you want to do?(+, -, , or /):")

if (operation != "+" and operation != "-" and operation != "" and operation != "/"):

print("Your input is invalid. Please enter a valid input.")

else:

num1 = float(input("Enter value for num1: "))

num2 = float(input("Enter value for num2: "))

if (operation == "+"):

print(add(num1, num2))

elif (operation == "-"):

print(subtract(num1, num2))

elif (operation == "*"):

print(multi(num1,num2))

elif (operation == "/"):

print(div(num1,num2))
main()

[emerson]

Retreat before main()Take him away and everything will be fine.