Python：从列表列表中删除元组

Question

我有一个包含元组的列表列表：

[[(1L,)], [(2L,)], [(3L,)], [(4L,)], [(5L,)]

如何编辑列表，使列表如下所示：

l = [[1][2][3][4][5]]

Answer 1

>>> a
[[(1L,)], [(2L,)], [(3L,)], [(4L,)], [(5L,)]]
>>> a = [[x[0][0]] for x in a]
>>> a
[[1L], [2L], [3L], [4L], [5L]]