How would I sum a multi-dimensional array in the most succinct python?

Question

The closest was this one summing columns.

So I\'ll do something similar in my question:

Say I\'ve a Python 2D list as below:

my_list =  [ [1,         


        

Answer 1

>>> sum ( [ sum(x) for x in [[1,2,3,4], [2,4,5,6]] ] )
27