加入列表和元組在Python

Question

我想轉換

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

到

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

我試圖用這個代碼來做到這一點

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

和我的輸出變

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

我該如何正確轉換此.. ..？

謝謝！

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

另一種選擇是從itertools 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))