[Tutor] variables within function - wha?

[Simon Brunning]

> From:	kromag@nsacom.net [SMTP:kromag@nsacom.net]
> def filter(cc,rpm,type):
> 	cid=cc/16.387
> 	ocg=(cid*rpm)/20839
> 	foam=ocg*1.3767
> 	paper=ocg*1.2181
> 	if type==paper:
> 		return paper,
> 	elif type==foam:
> 		return foam,
> 	else:
> 		return ocg
 
You might want to replace lines 6 thru 9 with:

    if type=='paper':
        return paper
    elif type=='foam':
        return foam

BTW, are you using tabs to indent your code? Don't! Use spaces instead.
 
> I can't figure out why:
> 
> >>> filter(1800,7000,foam)
> Traceback (innermost last):
>   File "<pyshell#1>", line 1, in ?
>     filter(1800,7000,foam)
> NameError: There is no variable named 'foam'
> >>> 
> 
> occours. Have I been inhaling too much brake cleaner?
 
Try:

filter(1800,7000,'foam')

and it should work.

BTW, filter is a bad name for this function, because there is already a
built-in with that name.

Cheers,
Simon Brunning
TriSystems Ltd.
sbrunning@trisystems.co.uk





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