如何在python中访问静态方法中的静态变量

Question

我在Python中使用了以下类。这个类是我用于下棋的游戏的实用类。它包含大多数静态变量，当我尝试在静态方法中访问静态变量时，我遇到了麻烦。

class BoardUtils:
    NUM_TILES = 64
    NUM_TILES_PER_ROW = 8

    @staticmethod
    def init_column(column):
        grid = [False] * BoardUtils.NUM_TILES
        for i in range(0 + column, BoardUtils.NUM_TILES, BoardUtils.NUM_TILES_PER_ROW):
            grid[i] = True
        return grid

    @staticmethod
    def init_row(row):
        grid = [False] * BoardUtils.NUM_TILES
        for i in range(BoardUtils.NUM_TILES_PER_ROW * row,
                   BoardUtils.NUM_TILES_PER_ROW * (row + 1)):
            grid[i] = True
        return grid

    FIRST_COLUMN = init_column.__func__(0)
    SECOND_COLUMN = init_column.__func__(1)
    SEVENTH_COLUMN = init_column.__func__(6)
    EIGHTH_COLUMN = init_column.__func__(7)
    SECOND_ROW = init_row.__func__(1)
    SEVENTH_ROW = init_row.__func__(6)

编译时，它会给我以下错误。

Traceback (most recent call last):
  File "alice5500.py", line 27, in <module>
    class BoardUtils:
  File "alice5500.py", line 46, in BoardUtils
    FIRST_COLUMN = init_column.__func__(0)
  File "alice5500.py", line 33, in init_column
    grid = [False] * BoardUtils.NUM_TILES
NameError: global name 'BoardUtils' is not defined

这可以解决哪些问题？