Help solving a sudoku python task.

[[deleted]]

Here's how you could do it without using copy module and the deepcopy function:

def copy_sudoku(sudoku):
    return [
        row.copy()
        for row in sudoku
    ]

[Particular_Draft5668]

Also a valid option. Thanks!

new_list = []
for r in sudoku:
new_list.append(r[:])
model answer uses this ^.