[Tutor] flow problem with a exercise

[Joel Goldstick]

On Thu, Aug 19, 2010 at 3:01 PM, 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 Falseotherwise. 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
>

NOTE that your return statement is not indented properly.  It must line up
under uitkomst

>
> 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
>
>
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-- 
Joel Goldstick
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