从python中的字典转换为列表的问题[重复]

Posted 2023-02-23

【中文标题】从python中的字典转换为列表的问题[重复]

【英文标题】：Issue in converting to list from dictionary in python [duplicate]

【发布时间】：2019-12-14 17:43:41

【问题描述】：

我已经将我的字典转换为列表，但在获取特定格式时卡住了。我的输出字典是，

foldersinlist = [['Training'], ['Training videos', 'Training documents', 'Training workouts', 'Training practicals', 'Training practicals', 'Training practicals']]

我想要的，

['Training', 'Training videos', 'Training documents', 'Training workouts', 'Training practicals', 'Training practicals', 'Training practicals']

我目前拥有的代码如下，

foldersinlist = list(folders.values())
print(foldersinlist)

【参考方案1】：

这是嵌套列表而不是字典：

foldersinlist = [['Training'], ['Training videos', 'Training documents', 'Training workouts', 'Training practicals', 'Training practicals', 'Training practicals']]

这是平面列表：

['Training', 'Training videos', 'Training documents', 'Training workouts', 'Training practicals', 'Training practicals', 'Training practicals']

只是做：

ll = sum(foldersinlist , [])

【参考方案2】：

试试：

print([x for i in foldersinlist for x in i])

输出：

['Training', 'Training videos', 'Training documents', 'Training workouts', 'Training practicals', 'Training practicals', 'Training practicals']