假设我有这样的结构:
a = [
('A',
['D',
'E',
'F',
'G']),
('B',
['H']),
('C',
['I'])
]
如何将其转换为:
a = [
('A', 'D'),
('A', 'E'),
('A', 'F'),
('A', 'G'),
('B', 'H'),
('C', 'I'),
]
谢谢你的时间!
答案 0 :(得分:10)
尝试:
>>> a = [('A', ['D', 'E', 'F', 'G']), ('B', ['H']), ('C', ['I'])]
>>> [(k,j) for k, more in a for j in more]
[('A', 'D'), ('A', 'E'), ('A', 'F'), ('A', 'G'), ('B', 'H'), ('C', 'I')]
当然,它只处理一个嵌套级别。
答案 1 :(得分:4)
这是一个简单的解决方案:
data = [
('A',
['D',
'E',
'F',
'G']),
('B',
['H']),
('C',
['I'])
]
result = []
for x in data:
for y in x[1]:
result.append((x[0], y))
答案 2 :(得分:1)
(旁注)为什么你这样缩进?以下不是更具可读性吗?
a = [
('A', ['D', 'E', 'F', 'G']),
('B', ['H']),
('C', ['I'])
]