[Tutor] flow problem with a exercise

[Alex Hall]

On 8/19/10, Roelof Wobben <rwobben at hotmail.com> wrote:
>
> Hello,
>
>
>
> I have this exercise:
>
>
>
> Now write the function is_odd(n) that returns True when n is odd and False
> otherwise. Include doctests for this function as you write it.
> Finally, modify it so that it uses a call to is_even to determine if its
> argument is an odd integer.
>
>
>
> So I thought of this :
>
>
>
> def is_even(argument):
>     remainder= argument%2
>     if remainder == 0 :
>         return True
>     else :
>         return False
>
>
> def is_odd(argument):
>   uitkomst=is_even(argument)
> return uitkomst
The above line, the return statement, has to be indented; it did not
appear to be in your email. Also, maybe you want to return the
opposite of is_even in is_odd? Right now it looks like you are going
to get something like:
is_odd(3): is_even(3)=False, so is_odd(3) will echo that False. Maybe
return !uitkomst instead. I could have read it wrong, though.

>
>
> even=is_odd(1) ;
> if even==True :
>   print "Even getal"
> if even==False:
>     print "Oneven getal"
>
>
>
> But now I get this error message :
>
>
>
> return uitkomst
>
> Syntax error : return outside function.
>
>
>
>
>
> In my opinon even calls is_odd , then uitkomst calls is_even which gives a
> true or false to uitkomst. So return uitkomst gives the outcome to even.
>
> But the intepreter thinks otherwise.
>
>
>
> I work on a Win7 machine with Python 2.7
>
>
>
> Roelof
>
>
>  		 	   		


-- 
Have a great day,
Alex (msg sent from GMail website)
mehgcap at gmail.com; http://www.facebook.com/mehgcap