如何获得Python中相邻元组的最大值？

Question

假设我有下面的元组

dummy = [("text", 10), ("This is the Sentence", 20), 
         ("that I Want", 20), ("to Get", 20), 
         ("text", 8), ("text", 6)]

我想得到“This is the Sentence that I Want to Get”，然后忽略其余部分。特别是文本总是具有最大值（在本例中为20），并且它们彼此相邻。基本上，它将只收集彼此相邻的具有最大值的元组

在下面的代码中，我只收集第一个max元组，但它忽略了其余的

from operator import itemgetter

max(dummy, key=itemgetter(1))

如何使其获得所有其他最大值

Answer 1

以下是我的方法：

from operator import itemgetter

dummy = [("text", 10), ("This is the Sentence", 20), 
         ("that I Want", 20), ("to Get", 20), 
         ("text", 8), ("text", 6)]

max_num = max(dummy, key=itemgetter(1))[1]
text_blocks = [text for text, num in dummy if num == max_num]

sentence = ' '.join(text_blocks)

print(sentence)

# This is the Sentence that I Want to Get

通过使用namedtuples作为虚拟项，可以进一步改进代码

Answer 2

为什么不： 使用dict值获取max键并通过它实现过滤器

m_value = max(dict(dummy).values())
" ".join([x for x, n in dummy if n == m_value])

我的结果是：

'This is the Sentence that I Want to Get'

Answer 3

像这样的

>>> t = np.array([d[0] for d in dummy])
>>> v = np.array([d[1] for d in dummy])
>>> print(t[v==v.max()])

['This is the Sentence' 'that I Want' 'to Get']