Dict/List max by key

我有以下词典:

[{'country': 'Armenia', 'population': '3026048'}, {'country': 'Angola', 'population': '25830958'}, {'country': 'Algeria', 'population': '40375954'}, {'country': 'Andorra', 'population': '69165'}, {'country': 'Anguilla', 'population': '14763'}, {'country': 'American Samoa', 'population': '55602'}, {'country': 'Aruba', 'population': '104263'}, {'country': 'Argentina', 'population': '43847277'}, {'country': 'Afghanistan', 'population': '33369945'}, {'country': 'Azerbaijan', 'population': '9868447'}, {'country': 'Australia', 'population': '24309330'}, {'country': 'Antigua and Barbuda', 'population': '92738'}, {'country': 'Albania', 'population': '2903700'}, {'country': 'Austria', 'population': '8569633'}]

和以下列表

[['Andorra', '69165'], ['Afghanistan', '33369945'], ['Algeria', '40375954'], ['American Samoa', '55602'], ['Aruba', '104263'], ['Armenia', '3026048'], ['Angola', '25830958'], ['Azerbaijan', '9868447'], ['Antigua and Barbuda', '92738'], ['Australia', '24309330'], ['Albania', '2903700'], ['Argentina', '43847277'], ['Anguilla', '14763'], ['Austria', '8569633']]

如何提取人口最多的国家/地区的国家/地区名称(每个子列表中的第二个值)

您可以为列表或词典提供解决方案.

您可以使用max密钥,对于列表,它将是:

max(lst, key = lambda x: int(x[1]))
# ['Argentina', '43847277']

dict的想法相同,关键功能略有不同:

max(d, key = lambda x: int(x['population']))
# {'country': 'Argentina', 'population': '43847277'}