How Can I Call A Function With Variable Value in python

Question

'''

operator = input("Enter What You Wanna Do (add/sub/multi/div")
firstNum = int(input("Enter First Number:"))
secondNum = int(input("Enter Second Number:"))

def add(result):
    result = firstNum + secondNum
    return result
def sub(result):
    result = firstNum - secondNum
def multi(result):
    result = firstNum * secondNum
    return result
def div(resukt):
    result = firstNum / secondNum
    return result

'''

in this code how can i call all those functions when needed without 4 if statements i tried to add like operator() in hopes of it will take value of operator variable and call specific user entered function but it failed can some one give an option

Answer 1

If Someone Wonders The Answer Ive Been Able To Figure That Out

eval(operator+"()")

Adding this function willl fix it ;)

Answer 2

To answer the question in the title you can use globals() to return a function based on a string. Here, that would look something like:

operator = input("Enter What You Wanna Do (add/sub/multi/div)")
firstNum = int(input("Enter First Number:"))
secondNum = int(input("Enter Second Number:"))

def add():
    result = firstNum + secondNum
    return result

func_obj = globals()[operator]
print(f'The answer is {func_obj()}')