# [Tutor] flow problem with a exercise

ALAN GAULD alan.gauld at btinternet.com
Fri Aug 20 23:53:20 CEST 2010

> I don''t understand it complety.

> return not arg%2
>>
>> Why use not here ?
>>
>> I think that arg%2 is True not makes it false.
>
>For an even number arg % 2 will be 0 which Python considers to be False.
So for a True result when arg%2 is zero, you must negate the logic

Another question.
>
>How can I round outcome of a calculation.
>
>round ( ( t-32)/1.8) does not work because I get a message that there are two
>arguments.
>
>Check your code because thre is only one arg here. Therefore the actual code
giving the error must be different in some way.

Outcome = (t-32)/1.8
>outcome2 = round (outcome) does not work because the argument must be a string
>or a number
>
>
>
Assuming t is a number the outcome will be a number so it should work.

It helps if you cut n paste the real code and the real error message,
do not just summarise. Python error messages are extremely helpful,
but only if we can see them.

Alan G.
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