Pythonic 按字段名称对命名元组列表进行排序的方法

Question

我想对命名元组列表进行排序，而不必记住字段名的索引。我的解决方案似乎很尴尬，希望有人能提供更优雅的解决方案。

from operator import itemgetter
from collections import namedtuple

Person = namedtuple('Person', 'name age score')
seq = [
    Person(name='nick', age=23, score=100),
    Person(name='bob', age=25, score=200),
]

# sort list by name
print(sorted(seq, key=itemgetter(Person._fields.index('name'))))
# sort list by age
print(sorted(seq, key=itemgetter(Person._fields.index('age'))))

谢谢，尼克

Answer 1

from operator import attrgetter
from collections import namedtuple

Person = namedtuple('Person', 'name age score')
seq = [Person(name='nick', age=23, score=100),
       Person(name='bob', age=25, score=200)]

按名称排序列表

sorted(seq, key=attrgetter('name'))

按年龄排序

sorted(seq, key=attrgetter('age'))