Calculator -python

Question

while True:
num1 = float(input('enter first number'))
operand = input('enter the operand')
num2 = float(input('enter second number'))

if operand == 'add':
print (num1+num2)
else:
break

This code turns up an error saying add has not been defined. Help

Answer 1

When the program asked you for input you probably typed + so add wasn't found.
Add is not an operator so I am not sure if it still works when you type 'add' when the program asks you for input.

Answer 2

Try + instead of 'add'

Answer 3

Thanks it worked. But I would like to know why ‘add’ turned up an error