>>38-39
lst = [[0 for col in range(3)] for row in range(2)]
みたいなやり方で初期化する方法もある。

>>> lst = [[0 for col in range(3)] for row in range(2)]
>>> lst
[[0, 0, 0], [0, 0, 0]]
>>> lst[0][1] = 1
>>> lst
[[0, 1, 0], [0, 0, 0]]