Python反向字母顺序

您可以使用

list.sort

>>> l = [(3, 'one'), (2, 'was'), (2, 'two'), (1, 'too'), (1, 'racehorse'), (1, 'a')]>>> l.sort(key=lambda x: x[1], reverse=True)>>> l.sort(key=lambda x: x[0])>>> l[(1, 'too'), (1, 'racehorse'), (1, 'a'), (2, 'was'), (2, 'two'), (3, 'one')]