在Python中如何按“子键”对字典排序

Question

我能得到一些关于如何做的指导吗

变数

people = {'adam': {'distance': 14, 'age': 22, 'height': 1.3}, 'charles': {'distance': 3, 'age': 37, 'height': 1.4}, 'jeff': {'distance': 46, 'age': 42, 'height': 1.6}}

按子键“距离”对人员变量排序后的预期输出

people = {'charles': {'distance': 3, 'age': 37, 'height': 1.4}, 'adam': {'distance': 14, 'age': 22, 'height': 1.3}, 'jeff': {'distance': 46, 'age': 42, 'height': 1.6}}

Answer 1

请尝试以下代码：

people = {'adam': {'distance': 14, 'age': 22, 'height': 1.3}, 'charles': {'distance': 3, 'age': 37, 'height': 1.4}, 'jeff': {'distance': 46, 'age': 42, 'height': 1.6}}
people = dict(sorted(people.items(), key=lambda item: item[1]['distance'], reverse=False))
print(people)

输出：

people = {'charles': {'distance': 3, 'age': 37, 'height': 1.4}, 'adam': {'distance': 14, 'age': 22, 'height': 1.3}, 'jeff': {'distance': 46, 'age': 42, 'height': 1.6}}