[Tutor] if...elif question

[Andrei Kulakov]

On Tue, Oct 02, 2001 at 09:17:23PM -0500, Chris Keelan wrote:
> I know the answer is staring me right in the face, but why does this little 
> code snippet:
> 
> ## a function to convert percentages to letter grades
> def grades(percent):
>     
>     if percent < 60:
>         return 'F'
>     
>     elif percent >= 60 < 70:
    elif 60 <= percent < 70:
>         return 'D'
>     
>     else:
>         return 'A'
> 
> ##test the function
> 
> percent=75
> mark=grades(60)
> 
> print "%s percent is a grade of %s" % (percent, mark)
> 
> ...produce this output:
> 
> >> 75 percent is a grade of D 
> 
> ?!?
> 
> Shouldn't the value of 75 fail the second elif test and return the 'else' 
> value?

What happens is first percent is compared to 60, and the result is true.
then I think 60 is compared to 70, and that is always true.

Just a guess, and I didn't test my code but I'm almost certain it should
work fine.

> 
> What am I doing wrong?
> 
> - Chris
>         
> 
> 
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