Error in sample output in Part 5 exercises 4 and 5

[aleishmo]

If I understand correctly, the statement print(row_correct(sudoku, 0)) in Part 5 exercise 4 should print False rather than True as the sample output suggests.

Likewise, in Part 5 exercise 5 the statement print(column_correct(sudoku, 1)) should print False rather than True

Additionally, when testing my code for Part 5 exercise 4, I'm getting a failed test result despite my code working as I believe was intended.