Python將列表列表轉換爲元組列表

Question

我試圖將列表列表轉換爲元組列表。

我的Python 2.6.8的代碼是：

1. dicts = List of dictionaries all with same set of keys foo and bar 
2. for d in dicts: 
3.  for f in d['foo']: # d['foo'] is a list of lists 
4.   f.change_some_stuff_inplace(with_some_other_stuff) 
5.   f = tuple(f) # this obviously doesn't work - it just converts f locally 
6.  for b in d['bar']: # d['bar'] is also a list of lists 
7.   b.change_some_stuff_inplace(with_yet_some_other_stuff) 
8.   b = tuple(b) # again this doesn't work 

線條5和8不投我的名單到元組，是有辦法的f S和b秒值進行轉換，以就地元組？

ANSWER - 在註釋：

需要做的d['bar'] = map(tuple, d['bar'])。

Answer 1

那麼好吧：

d['foo'] = map(tuple, d['foo']) 
d['bar'] = # etc... 

如果你想使這個工作既2.x和3.x，然後用列表比較，而不是：

d['foo'] = [tuple(el) for el in d['foo']] 

然後可能使多一點通用：

for key in ('foo', 'bar'): 
    d[key] = [tuple(el) for el in d[key])