Python-based dictionary sort specified key

Of the following list based on age sort
items = [{ 'age': 28, 'name': 'Tom'}, { 'age': 25, 'name': 'Jack'}, { 'age': 18, ' name ':' Alex '}]

Method a:
the sorted (items, the lambda = Key Item: Item [ 'Age'])

方法二：
from operator import itemgetter
sorted(items,key=itemgetter('age'))

Note: The above two methods are equally applicable to the max (), min () function