Learn Classes and Objects by Building a Sudoku Solver - Step 20

Python
1

Tell us what’s happening:

Not really sure what this is asking to do, I tried to put None inside the try loop before the pass call but nothing then I tried outside at the bottom of the code step and still nothing also tried different indentations.

Your code so far

class Board:
    def __init__(self, board):
        self.board = board

# User Editable Region

    def find_empty_cell(self):
        for row, contents in enumerate(self.board):
            try:
                col = contents.index(0)
                return row, col
            except ValueError:
                 
                  None
                  pass
        

# User Editable Region

puzzle = [
  [0, 0, 2, 0, 0, 8, 0, 0, 0],
  [0, 0, 0, 0, 0, 3, 7, 6, 2],
  [4, 3, 0, 0, 0, 0, 8, 0, 0],
  [0, 5, 0, 0, 3, 0, 0, 9, 0],
  [0, 4, 0, 0, 0, 0, 0, 2, 6],
  [0, 0, 0, 4, 6, 7, 0, 0, 0],
  [0, 8, 6, 7, 0, 4, 0, 0, 0],
  [0, 0, 0, 5, 1, 9, 0, 0, 8],
  [1, 7, 0, 0, 0, 6, 0, 0, 5]
]

gameboard = Board(puzzle)

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Challenge Information:

Learn Classes and Objects by Building a Sudoku Solver - Step 20

2

the instructions are

Outside the for loop, return None .

Please individuate where the loop ends and return None there

3

Thanks figured it out with your "where the loop ends " comment and reading the Return None step closer.