[Python-ideas] Adding list.pluck()

Cenk Altı cenkalti at gmail.com
Fri Jun 1 23:48:04 CEST 2012


l.pluck('name') is more readable IMO.

On Sat, Jun 2, 2012 at 12:25 AM, Alexandre Zani
<alexandre.zani at gmail.com> wrote:
> What if it's a list of objects instead of a list of dicts? List
> comprehension already makes this easy:
>
> [i['name'] for i in l]
>
> I don't think this would add as much in python as it adds in javascript.
>
> On Fri, Jun 1, 2012 at 2:16 PM, Oleg Broytman <phd at phdru.name> wrote:
>> On Sat, Jun 02, 2012 at 12:10:03AM +0300, Cenk Alt?? <cenkalti at gmail.com> wrote:
>>> pluck() is a beautiful function which is in underscore.js library.
>>> Described as "A convenient version of what is perhaps the most common
>>> use-case for map: extracting a list of property values."
>>>
>>> http://documentcloud.github.com/underscore/#pluck
>>>
>>> What about it implementing for python lists? And maybe for other iterables?
>>
>>   Like operator.attrgetter?
>> http://docs.python.org/library/operator.html#operator.attrgetter
>>
>> Oleg.
>> --
>>     Oleg Broytman            http://phdru.name/            phd at phdru.name
>>           Programmers don't die, they just GOSUB without RETURN.
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