python中的清理列表

Question

我有几个列表，他们有2个值 - 一个或多个单词和分数，[(deployment appears', 4.0), ('times bigger', 4.0), ('data forced', 4.0), ('washington media', 4.0), ('barely understood', 4.0), ('american public', 4.0), ('country', 4.0), ('house', 4.0)]

如何创建仅包含单词的列表 - 例如[('deployment appears'), ('times bigger'), ('data forced'), ('washington media'), ('barely understood'), ('american public'), ('accurate accounting'), ('white house')]

Answer 1

列出对救援的理解：

result = [x[0] for x in data]

Answer 2

您可以使用列表理解：

your_list = [('deployment appears', 4.0), ...]
filtered = [tuple(some_number) for _, some_number in your_list]

Answer 3

你可以试试这个：

s = [('deployment appears', 4.0), ('times bigger', 4.0), ('data forced', 4.0), ('washington media', 4.0), ('barely understood', 4.0), ('american public', 4.0), ('country', 4.0), ('house', 4.0)]
new_s = [i[:1] for i in s]

输出：

[('deployment appears',), ('times bigger',), ('data forced',), ('washington media',), ('barely understood',), ('american public',), ('country',), ('house',)]