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

Discussion in 'Python' started by Dave Angel, Dec 4, 2012.

  1. Dave Angel

    Dave Angel Guest

    On 12/04/2012 04:36 PM, Chris Angelico wrote:
    > On Wed, Dec 5, 2012 at 8:25 AM, Daniel Fetchinson
    > <> 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
    Dave Angel, Dec 4, 2012
    #1
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