In-place way to apply a permutation to a list? (inverse of sorting-by-key)

Question

Here\'s a example of what I want to do

spam_list = [\"We\", \"are\", \"the\", \"knights\", \"who\", \"say\", \"Ni\"]
spam_order = [0,1,2,4,5,6,3]
spam_list.m         


        

Answer 1

You may use numpy.

import numpy as np
spam_list = list(np.array(spam_list)[spam_order])