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Re: filter a list of strings

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On 03/12/2015 01:15, c.buhtz@posteo.jp wrote:
> I would like to know how this could be done more elegant/pythonic.
>
> I have a big list (over 10.000 items) with strings (each 100 to 300
> chars long) and want to filter them.
>
> list = .....
>
> for item in list[:]:
>    if 'Banana' in item:
>       list.remove(item)
>    if 'Car' in item:
>       list.remove(item)
>
> There are a lot of more conditions of course. This is just example code.
> It doesn't look nice to me. To much redundance.

targets = ['Banana', 'Car'...]
for item in list[:]:
     for target in targets:
         if target in item:
             list.remove(item)

>
> btw: Is it correct to iterate over a copy (list[:]) of that string list
> and not the original one?
>

Absolutely :)

-- 
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence

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Thread

Re: filter a list of strings Mark Lawrence <breamoreboy@yahoo.co.uk> - 2015-12-03 12:28 +0000
  Re: filter a list of strings Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-12-08 23:58 +0100
    Shadowing built-ins [was Re: filter a list of strings] Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-12-09 18:38 +1100
    Re: filter a list of strings Sivan Greenberg <sivan@vitakka.co> - 2015-12-09 16:35 +0200

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