Transpose Python
l = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
t = list(zip(*l))
# t = [(1, 4, 7), (2, 5, 8), (3, 6, 9)] # list with tuples
t = list(map(list, zip(*l)))
# t = [[1, 4, 7], [2, 5, 8], [3, 6, 9]] # list with lists
# t = [*map(list, zip(*l))] works as well
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