[BangPypers] BangPypers Digest, Vol 69, Issue 8

[Jagadeesh N. Malakannavar]

I tried to test the performance of list comprehension and map. I did not
see much difference

Here is my test

localhost% python -mtimeit -s"sum(int(i) for i in '3245325')"
10000000 loops, best of 3: 0.02 usec per loop
localhost% python -mtimeit -s"sum(map(int, str(3245325)))"
10000000 loops, best of 3: 0.02 usec per loop

Thanks




On Thu, May 9, 2013 at 3:30 PM, <bangpypers-request at python.org> wrote:

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>    1. [Ticket #49] Another qn. THanks for the basic of basic qn\
>       (Prashant R. Naik)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Thu, 9 May 2013 08:23:48 +0000
> From: "Prashant R. Naik" <prashant at triconinfotech.com>
> To: "bangpypers at python.org" <bangpypers at python.org>
> Subject: [BangPypers] [Ticket #49] Another qn. THanks for the basic of
>         basic qn\
> Message-ID:
>         <E728B7F635D6814A9049AC1C56B08D0C473F11B5 at MAIL.triconhome.local>
> Content-Type: text/plain; charset="us-ascii"
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> On May 09, 2013 @ 01:51 pm, bangpypers-bounces+prashant=
> triconinfotech.com at python.org wrote:
>
> On 8 May 2013 23:00, Jagadeesh N. Malakannavar <mnjagadeesh at gmail.com>
> wrote:
> > I prefer to do it like this
> >
> >>>> a = list(str(3245325))
> >>>> sum(map(int, a))
> > 24
>
> What does the map() gain you over basic list comprehension:
> sum( [int(i) for i in '3245325'] )
> ignoring any try/catch for int conversion errors
>
> IMHO, this is easier to understand, more Pythonic, and likely
> faster.
>
> Regards,
> Gora
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-- 

Thanks,
Jagadeesh N.Malakannavar