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Asked: 2026-05-24T19:37:32+00:00

Possible Duplicate: What is :: (double colon) in Python? I read the question What

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Possible Duplicate:
What is :: (double colon) in Python?

I read the question What is :: (double colon) in Python when subscripting sequences?, but this not answer what myarray[x::y] mean.

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1 Answer

  1. Editorial Team

    It prints every yth element from the list / array

    >>> a = [1,2,3,4,5,6,7,8,9]
>>> a[::3]
[1, 4, 7]

    The additional syntax of a[x::y] means get every yth element starting at position x

    ie.

    >>> a[2::3]
[3, 6, 9]
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