Using map()

Ned Batchelder ned at nedbatchelder.com
Mon Nov 17 01:24:42 CET 2014


On 11/16/14 7:09 PM, Steven D'Aprano wrote:
> Pavel Volkov wrote:
>
>> I checked my modules with pylint and saw the following warning:
>>
>> W: 25,29: Used builtin function 'map' (bad-builtin)
>>
>> Why is the use of map() discouraged?
>> It' such a useful thing.
>
> That's a bug in pylint. It's not a bad builtin, it is perfectly fine.
>
> Some people don't like map. Pay no attention to them.

Pylint isn't useful until you've tailored the messages.  Personally, I 
avoid map, but your usage may vary.  The pylint message that always 
irked me was:

     W0142: Used * or ** magic

"magic"? They're features of the language!  Meanwhile, it doesn't mind 
if you write multiply-inherited metaclasses....

-- 
Ned Batchelder, http://nedbatchelder.com




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