如何从元组python列表中删除所有字符串

Question

我试图从元组列表中删除所有字符串

ListTuples = [(100, 'AAA'), (80, 'BBB'), (20, 'CCC'), (40, 'DDD'), (40, 'EEE')]

我已经开始尝试找到解决方案:

output = [i for i in ListTuples if i[0] == str]

print(output)

但我似乎无法理解如何获得如下输出:

[(100), (80), (20), (40), (40)]

格式始终是(int,str).

Answer 1

使用嵌套的元组理解和isinstance:

output = [tuple(j for j in i if not isinstance(j, str)) for i in ListTuples]

输出:

[(100,), (80,), (20,), (40,), (40,)]

请注意,元组中有尾随逗号区分它们,例如(100)它们是相同的100.