Programming puzzles: processing lists!

[Thomas Klemm]

(01-28-2019 07:37 PM)pier4r Wrote:  List transpose?

Maybe a bit off topic, but here's a party trick to transpose a matrix in Python:

Code:

>>> matrix = [[1, 34, 46, 31], [32, 40, 82, 40], [30, 16, 24, 18]]
>>> zip(*matrix)
[(1, 32, 30), (34, 40, 16), (46, 82, 24), (31, 40, 18)]

Found in: Dissecting a code golf challenge

Cheers
Thomas

BTW: The matrix is a list.

Code:

>>> type(matrix)
<type 'list'>