filter a list of strings
Thomas 'PointedEars' Lahn
PointedEars at web.de
Tue Dec 8 17:58:42 EST 2015
Mark Lawrence wrote:
> On 03/12/2015 01:15, c.buhtz at 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 = .....
>> […]
>
> 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 :)
However, “list” is a built-in class/constructor that would be overwritten
this way. One should choose another identifier than “list” for one’s
variables.
--
PointedEars
Twitter: @PointedEars2
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