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Home/ Questions/Q 3224686
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Editorial Team
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Editorial Team
Asked: May 17, 20262026-05-17T16:15:08+00:00 2026-05-17T16:15:08+00:00

I have this list comprehension: [[x,x] for x in range(3)] which results in this

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I have this list comprehension:

[[x,x] for x in range(3)]

which results in this list:

[[0, 0], [1, 1], [2, 2]]

but what I want is this list:

[0, 0, 1, 1, 2, 2]

What’s the easiest to way to generate this list?

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  1. Editorial Team
    Editorial Team
    2026-05-17T16:15:08+00:00Added an answer on May 17, 2026 at 4:15 pm
    [y for x in range(3) for y in [x, x]]
    
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