'Get closest value array in array of arrays.' follow up help.

[DreamingInsanity]

Thanks for the reply - the way you have done it is quite intriguing.
I sort of had a similar idea, but it was very fragmented.
This is as far as I got in the time I had:

def find_closest2(col, array2d):
  r,g,b = col[0], col[1], col[2]
  first_el = [i[0] for i in array2d]
  second_el = [i[1] for i in array2d]
  third_el = [i[2] for i in array2d]

which is almost exactly what you did in this line:

for num, elm in enumerate(array2d):

.
Dream

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I've worked some magic and compressed the function to a single line:

def find_closest2(col, array2d):
    get_lowest = lambda rgb_vals: min([[abs(col[0]-elm[0]) + abs(col[1]-elm[1]) + abs(col[2]-elm[2]), num] for num, elm in enumerate(rgb_vals)], key=lambda x: x[0])[1]
    return array2d[get_lowest(array2d)]

It is difficult to tell if it is working, however, it doesn't produce errors so that's a good sign.
I am going to test it out in my full project because that will really make sure it is working correctly.