Reveiw functions


#1

ok so im trying to figure this out but i m stumb

def shut_down(s):
    return s
    if shut_down(s) == "shuting down":
        return "Shutting down"
    elif shut_down(s) == "no":
        return "shutdown aborted"
    else:
        return "sry"

Oops, try again. Your function failed on the message yes. It returned 'yes' when it should have returned 'Shutting down'

or

def shut_down(s):
    
    if shut_down(s) == "shuting down":
        return "Shutting down"
    elif shut_down(s) == "no":
        return "shutdown aborted"
    else:
        return "sry"

Oops, try again. Your shut_down function threw the following error: maximum recursion depth exceeded


Review: Functions
#2

a function ends the moment a return keyword is reached, which in your first function is happening rather quickly.

This is very dangerous:

if shut_down(s) == "shuting down":

you call the function inside the function, getting a sort of infinite function calling.

s is the function parameter, it is basically a variable which only exist inside the function, and you can set it when calling the function:

def example(para):
   print para
example("set the parameter")

see? So you can just compare s with "shutting down".


#3

thank you, i understand more why that happen and so i change it to this and it work just fine.
thank you again