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Re: Is there a more elegant way to spell this?

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Jussi Piitulainen wrote:

> Neal Becker writes:
> 
>> Is there a more elegant way to spell this?
>> 
>> for x in [_ for _ in seq if some_predicate]:
> 
> If you mean some_predicate(_), then possibly this.
> 
> for x in filter(some_predicate, seq):
>    handle(x)
> 
> If you mean literally some_predicate, then perhaps this.
> 
> if some_predicate:
>    for x in seq:
>       handle(x)
> 
> Unless you also have in mind an interesting arrangement where
> some_predicate might change during the loop, like this.
> 
> for x in [_ for _ in seq if some_predicate]:
>     ...
>     some_predicate = fubar(x)
>     ...
> 
> Then I have nothing to say.


To clarify, I meant some_predicate(_), and then ifilter looks like a nice 
solution.

-- 
-- Those who don't understand recursion are doomed to repeat it

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Is there a more elegant way to spell this? Neal Becker <ndbecker2@gmail.com> - 2015-01-27 08:15 -0500
  Re: Is there a more elegant way to spell this? Rustom Mody <rustompmody@gmail.com> - 2015-01-27 06:08 -0800
  Re: Is there a more elegant way to spell this? Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2015-01-27 16:25 +0200
    Re: Is there a more elegant way to spell this? Neal Becker <ndbecker2@gmail.com> - 2015-01-27 09:37 -0500
      Re: Is there a more elegant way to spell this? Jussi Piitulainen <jpiitula@ling.helsinki.fi> - 2015-01-27 16:47 +0200
    Re: Is there a more elegant way to spell this? Mario Figueiredo <marfig@gmail.com> - 2015-01-27 19:05 +0100
      Re: Is there a more elegant way to spell this? random832@fastmail.us - 2015-01-27 13:13 -0500
    Re: Is there a more elegant way to spell this? Neal Becker <ndbecker2@gmail.com> - 2015-01-27 13:25 -0500
  Re: Is there a more elegant way to spell this? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-01-28 11:55 +1100
    Re: Is there a more elegant way to spell this? Mario Figueiredo <marfig@gmail.com> - 2015-01-28 02:19 +0100
      Re: Is there a more elegant way to spell this? Ben Finney <ben+python@benfinney.id.au> - 2015-01-28 12:29 +1100
        Re: Is there a more elegant way to spell this? Mario Figueiredo <marfig@gmail.com> - 2015-01-28 09:32 +0100
      Re: Is there a more elegant way to spell this? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-01-28 13:16 +1100

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