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Groups > comp.lang.python > #34262

Re: assign only first few items of a tuple/list

Date 2012-12-04 17:50 -0500
From Dave Angel <d@davea.name>
Subject Re: assign only first few items of a tuple/list
References <CADjSo4TP03MTF_8Htn-N4xNV1zB08wTK7geLvxU0jYX_FXUqmg@mail.gmail.com> <CAPTjJmr+UB0phzuWoNYQxo8R3CQrVgMsH=vUf26MV7c+P+uKtg@mail.gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.482.1354661449.29569.python-list@python.org> (permalink)

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On 12/04/2012 04:36 PM, Chris Angelico wrote:
> On Wed, Dec 5, 2012 at 8:25 AM, Daniel Fetchinson
> <fetchinson@googlemail.com> wrote:
>> Hi folks, I swear I used to know this but can't find it anywhere.
>> Say I have a list x = [ 1,2,3,4,5 ] and only care about the first two items.
>> I'd like to assign the first two items to two variables, something like,
>>
>> a, b, _ = x
>>
>> but the above will not work, of course, but what is the common idiom
>> for this that does?
> Try this:
>
> a, b, *_ = x
>
> Assigns 1 to a, 2 to b, and [3,4,5] to _
>
If you're on Python 3.x.  If you're on 2.x, you need to do a slice
notation like Terry points out.


-- 

DaveA

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Re: assign only first few items of a tuple/list Dave Angel <d@davea.name> - 2012-12-04 17:50 -0500

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