在python中加入列表和元组

Question

我想转换

[(3L, (2L,)), (108L, (11L,))]

到

(3L, (2L,), 108L, (11L,))

我尝试使用此代码执行此操作

 ["".join(map(str, val)) for val in list]

我的输出变为

('3(2L,)', '108(11L,)')

我如何才能正确转换这个..？

谢谢！

Answer 1

In [11]: lst = [(3L, (2L,)), (108L, (11L,))]

In [12]: tuple(el for subl in lst for el in subl)
Out[12]: (3L, (2L,), 108L, (11L,))

Answer 2

另一个选项是来自itertools的chain：

In [1]: from itertools import chain
In [2]: a = [(3L, (2L,)), (108L, (11L,))]
In [3]: tuple(chain(*a))
Out[3]: (3L, (2L,), 108L, (11L,))

Answer 3

import itertools

L = [(3L, (2L,)), (108L, (11L,))]
tuple(chain.from_iterable(L))