How to use cellular-automaton - 10 common examples

def is_coord_alive(coord):
            cell = self.get(*coord, default=Dead())
            return int(cell.is_alive)

    @classmethod
    def dead_grid(cls, *, height=None, width=None):
        return [
            [Dead() for _cols in range(width)]
            for _rows in range(height)
        ]

    @classmethod
    def from_str(cls, string):
        if string == Live.string_form:
            return Live()
        return Dead()

def next_state(self, neighbor_count):
        if neighbor_count in [2, 3]:
            return Live()
        return Dead()

def run_string_example(
    *,
    seed_string=None,
    seed_name=None,
    num_gens=10
):
    seed_game = GameOfLife.from_str(seed_string)
    if seed_name is None:
        seed_name = f'A {seed_game.height}x{seed_game.width} grid'
    print(dedent(f'''
        =========================
        | Conway's Game of Life |
        {'':=^50}
        | {f'Starting with seed: "{seed_name:.10}"': <46.46} |
        | {f'Running for {str(num_gens):1.3} generations.': <46.46} |
        {'':=^50}
    '''))
    latest_generation = seed_game
    for gen_num in range(1, num_gens + 1):
        print(f'Generation {gen_num}:')
        print(str(latest_generation))
        latest_generation = latest_generation.next_generation()
    print('Done')

    @classmethod
    def from_str(cls, string):
        non_empty_lines = (
            line for line in string.splitlines()
            if len(line) > 0
        )
        parsed_grid = [
            [Cell.from_str(char) for char in line]
            for line in non_empty_lines
        ]
        return cls(grid=parsed_grid)

if is_within_rows and is_within_cols:
            return self.grid[row][col]
        return default


class Cell:
    @classmethod
    def from_str(cls, string):
        if string == Live.string_form:
            return Live()
        return Dead()

    def __str__(self):
        return self.string_form

class Dead(Cell):
    string_form = '·'
    is_alive = False

    def next_state(self, neighbor_count):
        if neighbor_count == 3:
            return Live()
        return Dead()

class Live(Cell):
    string_form = '0'
    is_alive = True

    def next_state(self, neighbor_count):
        if neighbor_count in [2, 3]:
            return Live()
        return Dead()

return Live()
        return Dead()

    def __str__(self):
        return self.string_form

class Dead(Cell):
    string_form = '·'
    is_alive = False

    def next_state(self, neighbor_count):
        if neighbor_count == 3:
            return Live()
        return Dead()

class Live(Cell):
    string_form = '0'
    is_alive = True

    def next_state(self, neighbor_count):
        if neighbor_count in [2, 3]:
            return Live()
        return Dead()


from textwrap import dedent

def run_string_example(
    *,
    seed_string=None,
    seed_name=None,
    num_gens=10

    @classmethod
    def from_str(cls, string):
        if string == Live.string_form:
            return Live()
        return Dead()

    @classmethod
    def from_str(cls, string):
        if string == Live.string_form:
            return Live()
        return Dead()