I need to choose some elements from the given list, knowing their index. Let say I would like to create a new list, which contains element with index 1, 2, 5, from given list [-2, 1, 5, 3, 8, 5, 6]. What I did is:

a = [-2,1,5,3,8,5,6] b = [1,2,5] c = [ a[i] for i in b]

Is there any better way to do it? something like c = a[b] ?

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## Answer

You can use `operator.itemgetter`

:

from operator import itemgetter a = [-2, 1, 5, 3, 8, 5, 6] b = [1, 2, 5] print(itemgetter(*b)(a)) # Result: (1, 5, 5)

Or you can use numpy:

import numpy as np a = np.array([-2, 1, 5, 3, 8, 5, 6]) b = [1, 2, 5] print(list(a[b])) # Result: [1, 5, 5]

But really, your current solution is fine. It’s probably the neatest out of all of them.