[Tutor] Generate Prime Numbers

[Alan Gauld]

On 30/05/15 00:37, Cameron Simpson wrote:

>> def IsDivisibleBy3(number):#string variable
>>    return not int(number) % 3
>
> To illustrate that there isn't just One Right Way, I would code the
> above like this:
>
>   def IsDivisibleBy3(number): #string variable
>       return int(number) % 3 == 0
>
> Alan's code relies on "not" using an expressions "nonzero"ness as a
> boolean value. I _much_ prefer to directly state the test instead of
> relying on magic numeric=>boolean effects.

In this case I do too.
Especially since my version using the 'not' as well as
implied Truth value is less clear for a beginner such
as the OP. On reflection the explicit test is clearer.

If the 'not' had not been necessary I'd have been happy
without the == test. But introducing the not can be confusing.

-- 
Alan G
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