Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Object-Oriented Python Dice Roller Boards

Oliver Bird
Oliver Bird
57,653 Points

"yield from" not working on task 2.

I have tried the "yield from" syntax, as described in the Emulating Built-ins video.

I have tried several different combinations - including the below, and checked the indentation, but the task is still not passing - saying "Try again" each time.

It's probably something obvious that I have missed, but I could do with a clue!

boards.py
class Board:
    def __init__(self, width, height):
        self.width = width
        self.height = height
        self.cells = []
        for y in range(self.height):
            for x in range(self.width):
                self.cells.append((x, y))
    def __iter__(self):
        yield from self.cells

class TicTacToe(Board):
    def __init__(self):
        super().__init__(width=3, height=3)

1 Answer

Oliver Bird
Oliver Bird
57,653 Points

Ok, never mind. It worked after I added a new line between the two methods in the board class. Not sure if the space if required or just good practice.