Access multiple elements of list knowing their index

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] ?

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.

From: stackoverflow.com/q/18272160