sorting - Sort sublists in a list, Python -


this question has answer here:

i have following list in python upto n:

l = [[x_1,y_1,h_1,w_1], [x_2,y_2,h_2,w_2], ..., [x_n,y_n,h_n,w_n]]

and need sort in descending order respect sum of first , third elements in sublists (x_i , h_i) , first n sublists.

i managed storing sums in new list, there efficient way sort without creating one?

edit: sorry, duplicate question indeed.

go below link , see full detail how sort in python

sorting in python

 = sorted(l, key=lambda x: x[0] + x[2])

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