i have the following matrix: catch = [['fc', 2, 12, 2], ['abcd', 1, 2, 0], ['ab', 1, 0, 0], ['cf', 1, 13, 0], ['fc', 1, 14, 0], ['f', 1, 11, 0]]
and i want this matrix to be ordered by the third columns firstly, when the values of the third column are equals, by the second column. i just used catch.sort(key=lambda x: x[3]) to sort the matrix by third column -- https://mail.python.org/mailman/listinfo/python-list
